Conduct SMS Surveys

Overview

This guide shows how to conduct an SMS survey. Surveys can help businesses with market research. Using SMS for surveys lets organizations process input quickly and efficiently.You can conduct SMS surveys either by using our PHLO visual workflow builder or our APIs. Follow the instructions in one of the tabs below.

Using PHLO
Using API

You can create and deploy a PHLO to conduct an SMS survey with a few clicks on the PHLO canvas and trigger it with a few lines of code.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. If this is your first time triggering a PHLO with Node.js, follow our instructions to set up a Node.js development environment.

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

Click Create New PHLO.
In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.
The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.
If you plan to use a dynamic payload — passing values through parameters when you trigger the PHLO from your application — click on the Start node to open the Configuration pane. Under API Request, enter key names for the variables you want use in your payload — From, To, and Message fields.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Send Message component onto the canvas. When a component is placed on the canvas it becomes a node.
Draw a line to connect the Start node’s API Request trigger state to the Send Message node.
In the Configuration pane at the right of the canvas, configure the Send Message node with a sender ID in the From field. Enter the destination numbers you wish to send a message to in the To field. Put your message in the Text field.
You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through Liquid templating parameters when you trigger the PHLO from your application.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Branch component onto the canvas.
Draw a line to connect the Start node’s Incoming Message trigger state to the Branch node.
In the Configuration pane at the right of the canvas, configure the Branch node. Rename the node to Handle_Reply. For Variable to compare, enter two curly braces to view all available variables, then select Start.message.msg.
Click the pencil icon and name the first condition Satisfied. Leave the Operation “is equal to” and enter a value of 1.
Add a second condition. Name it Not Satisfied and enter a value of 2.
Once you’ve configured the node, click Validate to save the configuration.
Drag two Send Message nodes onto the canvas. Draw lines to connect them to the Handle_Reply node using the Satisfied and Not Satisfied trigger states.
In the Configuration pane for each of the Send Message nodes, specify the From and To keys you configured in the Start node. Enter two curly brackets to display a list of all available variables. In the Message field, you can enter a static message, or combine static text with a variable that includes dynamic text if you specified the variable as a key in the Start node configuration pane.
Rename the nodes Reply_Satisfied and Reply_NotSatisfied.
Once you’ve configured the nodes, click Validate to save their configurations.
From the list of components on the left-hand side, drag and drop the HTTP Request component onto the canvas. Draw four lines to connect the Sent and Failed trigger states of both the Reply_Satisfied and Reply_NotSatisfied nodes to the HTTP Request node.
In the Configuration pane for the HTTP Request node, rename the node to Handle_Callback. Enter URL to make the request to. The default method used is GET, but you can click on the box to choose POST, PUT, or DELETE instead. Specify Headers, Auth, Params, and Body values on their respective tabs as necessary.
Once you’ve configured the node, click Validate to save the configuration.

After you complete the configuration, give the PHLO a name by clicking in the upper left, then click Save.Your complete PHLO should look like this:

Your PHLO is now ready to test.

Trigger the PHLO

You integrate a PHLO into your application workflow by making an API request to trigger the PHLO with the required payload — the set of parameters you pass to the PHLO. You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through parameters when you trigger the PHLO from your application.In either case, you need your Auth ID and Auth Token, which you can get from the overview page of the Plivo console.

You also need the PHLO ID, which you can copy from the PHLO list page.

With a static payload

When you configure values when creating the PHLO, they act as a static payload.

Code

Create a file called TriggerPhlo.js and paste into it this code.

var plivo = require('plivo');
var PhloClient = plivo.PhloClient;

var authId = '<auth_id>';
var authToken = '<auth_token>';
var phloId = '<phlo_id>';
var phloClient = phlo = null;

phloClient = new PhloClient(authId, authToken);
phloClient.phlo(phloId).run().then(function (result) {
    console.log('Phlo run result', result);
}).catch(function (err) {
    console.error('Phlo run failed', err);
});

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console.

With a dynamic payload

To use dynamic values for the parameters, use Liquid templating parameters when you create the PHLO …

… and pass the values from your code when you trigger it.

Code

Create a file called TriggerPhlo.js and paste into it this code.

var plivo = require('plivo');
var PhloClient = plivo.PhloClient;

var authId = '<auth_id>';
var authToken = '<auth_token>';
var phloId = '<phlo_id>';
var phloClient = phlo = null;

var payload = {
    From: '<sender_id>',
    To: '<destination_number>',
}
phloClient = new PhloClient(authId, authToken);
phloClient.phlo(phloId).run(payload).then(function (result) {
    console.log('Phlo run result', result);
}).catch(function (err) {
    console.error('Phlo run failed', err);
});

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234).

Test

Save the file and run it.

node TriggerPhlo.js

Here’s how to use Plivo APIs to create surveys using SMS text messages — sending questions and collecting answers.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming messages, you must have a Plivo phone number that supports SMS; you can rent numbers from the Numbers page of the Plivo console or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a Node.js development environment.

Create the survey application

Create a file called survey.js and paste the below code.

const express = require('express')
const plivo = require('plivo')
const app = express()
const port = 3000

var bodyParser = require('body-parser')
app.use( bodyParser.json() );       // to support JSON-encoded bodies
app.use(bodyParser.urlencoded({     // to support URL-encoded bodies
  extended: true
}));

app.post('/send_survey/', function(req, res) {
    let client = new plivo.Client('<auth_id>', '<auth_token>');
    client.messages.create({
        src: '<sender_id>',
        dst: '<destination_number>',
        text: 'Did you find out all the information you needed? Please reply "Yes" or "No"'
    }).then(function(message_created) {
        res.status(200).send(message_created)
    });
});

app.post('/survey_response/', function(req, res) {

    let from_number = req.body.From;
    let to_number = req.body.To;
    let text = req.body.Text;
    console.log('Message received - From: ' + from_number + ', To: ' + to_number + ', Text: ' + text);
    
    let plivoxml = plivo.Response();
    let params = {
        'src': to_number,
        'dst': from_number,
    };
    
    if (text.toLowerCase() == "yes") {
        message_body = "Thank you for your feedback";
    } else if (text.toLowerCase() == "no") {
        message_body = "We apologize for the inconvenience. A representative will contact you to assist you";
    } else {
        message_body = `Response received was "${text}", which is invalid. Please reply with either "Yes" or "No"`;
    }
    
    plivoxml.addMessage(message_body, params);
    res.contentType('text/xml');
    res.end(plivoxml.toXML()).status(200);
});
app.listen(port, () => {
    console.log(`Example app listening on port ${port}`)
})

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234). In countries other than the US and Canada you can use a sender ID for the message source. You must have a Plivo phone number to send messages to the US or Canada; you can buy a Plivo number from Phone Numbers > Buy Numbers on the Plivo console or via the Numbers API.

We recommend that you store your credentials in the auth_id and auth_token environment variables to avoid the possibility of accidentally committing them to source control. If you do this, you can initialize the client with no arguments and Plivo will automatically fetch the values from the environment variables. You can use process.env to store environment variables and fetch them when initializing the client.

Test

Save the file and run it.

$ node survey.js

Overview

This guide shows how to conduct an SMS survey. Surveys can help businesses with market research. Using SMS for surveys lets organizations process input quickly and efficiently.You can conduct SMS surveys either by using our PHLO visual workflow builder or our APIs. Follow the instructions in one of the tabs below.

Using PHLO
Using API

You can create and deploy a PHLO to conduct an SMS survey with a few clicks on the PHLO canvas and trigger it with a few lines of code.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. If this is your first time triggering a PHLO with Ruby, follow our instructions to set up a Ruby development environment.

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

Click Create New PHLO.
In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.
The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.
If you plan to use a dynamic payload — passing values through parameters when you trigger the PHLO from your application — click on the Start node to open the Configuration pane. Under API Request, enter key names for the variables you want use in your payload — From, To, and Message fields.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Send Message component onto the canvas. When a component is placed on the canvas it becomes a node.
Draw a line to connect the Start node’s API Request trigger state to the Send Message node.
In the Configuration pane at the right of the canvas, configure the Send Message node with a sender ID in the From field. Enter the destination numbers you wish to send a message to in the To field. Put your message in the Text field.
You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through Liquid templating parameters when you trigger the PHLO from your application.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Branch component onto the canvas.
Draw a line to connect the Start node’s Incoming Message trigger state to the Branch node.
In the Configuration pane at the right of the canvas, configure the Branch node. Rename the node to Handle_Reply. For Variable to compare, enter two curly braces to view all available variables, then select Start.message.msg.
Click the pencil icon and name the first condition Satisfied. Leave the Operation “is equal to” and enter a value of 1.
Add a second condition. Name it Not Satisfied and enter a value of 2.
Once you’ve configured the node, click Validate to save the configuration.
Drag two Send Message nodes onto the canvas. Draw lines to connect them to the Handle_Reply node using the Satisfied and Not Satisfied trigger states.
In the Configuration pane for each of the Send Message nodes, specify the From and To keys you configured in the Start node. Enter two curly brackets to display a list of all available variables. In the Message field, you can enter a static message, or combine static text with a variable that includes dynamic text if you specified the variable as a key in the Start node configuration pane.
Rename the nodes Reply_Satisfied and Reply_NotSatisfied.
Once you’ve configured the nodes, click Validate to save their configurations.
From the list of components on the left-hand side, drag and drop the HTTP Request component onto the canvas. Draw four lines to connect the Sent and Failed trigger states of both the Reply_Satisfied and Reply_NotSatisfied nodes to the HTTP Request node.
In the Configuration pane for the HTTP Request node, rename the node to Handle_Callback. Enter URL to make the request to. The default method used is GET, but you can click on the box to choose POST, PUT, or DELETE instead. Specify Headers, Auth, Params, and Body values on their respective tabs as necessary.
Once you’ve configured the node, click Validate to save the configuration.

After you complete the configuration, give the PHLO a name by clicking in the upper left, then click Save.Your complete PHLO should look like this:

Your PHLO is now ready to test.

Trigger the PHLO

You integrate a PHLO into your application workflow by making an API request to trigger the PHLO with the required payload — the set of parameters you pass to the PHLO. You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through parameters when you trigger the PHLO from your application.In either case, you need your Auth ID and Auth Token, which you can get from the overview page of the Plivo console.

You also need the PHLO ID, which you can copy from the PHLO list page.

With a static payload

When you configure values when creating the PHLO, they act as a static payload.

Code

Create a file called trigger_phlo.rb and paste into it this code.

require 'rubygems'
require 'plivo'

include Plivo

AUTH_ID = '<auth_id>'
AUTH_TOKEN = '<auth_token>'

client = Phlo.new(AUTH_ID, AUTH_TOKEN)

# if credentials are stored in the PLIVO_AUTH_ID and the PLIVO_AUTH_TOKEN environment variables
# then initialize client as:
# client = Phlo.new

begin
  phlo = client.phlo.get('<phlo_id>')
  response = phlo.run()
  puts response
rescue PlivoRESTError => e
  puts 'Exception: ' + e.message
end

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console.

With a dynamic payload

To use dynamic values for the parameters, use Liquid templating parameters when you create the PHLO …

… and pass the values from your code when you trigger it.

Code

Create a file called trigger_phlo.rb and paste into it this code.

require 'rubygems'
require 'plivo'

include Plivo

AUTH_ID = '<auth_id>'
AUTH_TOKEN = '<auth_token>'

client = Phlo.new(AUTH_ID, AUTH_TOKEN)

# if credentials are stored in the PLIVO_AUTH_ID and the PLIVO_AUTH_TOKEN environment variables
# then initialize client as:
# client = Phlo.new

begin
  phlo = client.phlo.get('<phlo_id>')
  #parameters set in PHLO - params
  params = {
     From: '<sender_id>',
     To: '<destination_number>',
  }
  response = phlo.run(params)
  puts response
rescue PlivoRESTError => e
  puts 'Exception: ' + e.message
end

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234).

Test

Save the file and run it.

ruby trigger_phlo.rb

Here’s how to use Plivo APIs to create surveys using SMS text messages — sending questions and collecting answers.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming messages, you must have a Plivo phone number that supports SMS; you can rent numbers from the Numbers page of the Plivo console or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a Ruby development environment.

Create a Rails controller

Change to the project directory and run this command.

$ rails generate controller Plivo sms

This command generates a controller named plivo_controller in the app/controllers/ directory and a respective view in the app/views/plivo directory. We can delete the view as we don’t need it.

$ rm app/views/plivo/sms.html.erb

Create the survey application

Edit app/controllers/plivo_controller.rb and paste into it this code.

include Plivo
include Plivo::Exceptions
include Plivo::XML

class PlivoController < ApplicationController
	protect_from_forgery with: :null_session # disbale CSRF
	def send_survey
		api = RestClient.new("<auth_id>","<auth_token>")
		response = api.messages.create(
			src:'<sender_id>',
			dst:'<destination_number>',
			text:'Did you find out all the information you needed? Please reply "Yes" or "No"'
		)
		render json: response.to_s
	end

	def survey_response
		from_number = params[:From]
		to_number = params[:To]
		text = params[:Text]
		puts "From: #{from_number}, To: #{to_number}, Text: #{text}"
		if text.downcase == "yes"
			message_body = "Thank you for your feedback"
		elsif text.downcase=="no"
			message_body = "We apologize for the inconvenience. A representative will contact you to assist you"
		else
			message_body = "Response received was #{text}, which is invalid. Please reply with either Yes or No"
		end
		response = Response.new
		params = {
			src: to_number,
			dst: from_number,
		}
		response.addMessage(message_body, params)
		xml = PlivoXML.new(response)
		puts xml.to_xml
		render xml: xml.to_xml
	end
end

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234). In countries other than the US and Canada you can use a sender ID for the message source. You must have a Plivo phone number to send messages to the US or Canada; you can buy a Plivo number from Phone Numbers > Buy Numbers on the Plivo console or via the Numbers API.

Add a route

Edit config/routes.rb and change the line

Rails.application.routes.draw do
  get 'plivo/sms' 
end

to

Rails.application.routes.draw do
  post 'plivo/send_survey/' => 'plivo#send_survey'
  post 'plivo/survey_response/' => 'plivo#survey_response'
end

Test

Save the file and run it.

$ rails server

Overview

This guide shows how to conduct an SMS survey. Surveys can help businesses with market research. Using SMS for surveys lets organizations process input quickly and efficiently.You can conduct SMS surveys either by using our PHLO visual workflow builder or our APIs. Follow the instructions in one of the tabs below.

Using PHLO
Using API

You can create and deploy a PHLO to conduct an SMS survey with a few clicks on the PHLO canvas and trigger it with a few lines of code.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. If this is your first time triggering a PHLO with Python, follow our instructions to set up a Python development environment.

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

Click Create New PHLO.
In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.
The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.
If you plan to use a dynamic payload — passing values through parameters when you trigger the PHLO from your application — click on the Start node to open the Configuration pane. Under API Request, enter key names for the variables you want use in your payload — From, To, and Message fields.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Send Message component onto the canvas. When a component is placed on the canvas it becomes a node.
Draw a line to connect the Start node’s API Request trigger state to the Send Message node.
In the Configuration pane at the right of the canvas, configure the Send Message node with a sender ID in the From field. Enter the destination numbers you wish to send a message to in the To field. Put your message in the Text field.
You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through Liquid templating parameters when you trigger the PHLO from your application.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Branch component onto the canvas.
Draw a line to connect the Start node’s Incoming Message trigger state to the Branch node.
In the Configuration pane at the right of the canvas, configure the Branch node. Rename the node to Handle_Reply. For Variable to compare, enter two curly braces to view all available variables, then select Start.message.msg.
Click the pencil icon and name the first condition Satisfied. Leave the Operation “is equal to” and enter a value of 1.
Add a second condition. Name it Not Satisfied and enter a value of 2.
Once you’ve configured the node, click Validate to save the configuration.
Drag two Send Message nodes onto the canvas. Draw lines to connect them to the Handle_Reply node using the Satisfied and Not Satisfied trigger states.
In the Configuration pane for each of the Send Message nodes, specify the From and To keys you configured in the Start node. Enter two curly brackets to display a list of all available variables. In the Message field, you can enter a static message, or combine static text with a variable that includes dynamic text if you specified the variable as a key in the Start node configuration pane.
Rename the nodes Reply_Satisfied and Reply_NotSatisfied.
Once you’ve configured the nodes, click Validate to save their configurations.
From the list of components on the left-hand side, drag and drop the HTTP Request component onto the canvas. Draw four lines to connect the Sent and Failed trigger states of both the Reply_Satisfied and Reply_NotSatisfied nodes to the HTTP Request node.
In the Configuration pane for the HTTP Request node, rename the node to Handle_Callback. Enter URL to make the request to. The default method used is GET, but you can click on the box to choose POST, PUT, or DELETE instead. Specify Headers, Auth, Params, and Body values on their respective tabs as necessary.
Once you’ve configured the node, click Validate to save the configuration.

After you complete the configuration, give the PHLO a name by clicking in the upper left, then click Save.Your complete PHLO should look like this:

Your PHLO is now ready to test.

Trigger the PHLO

You integrate a PHLO into your application workflow by making an API request to trigger the PHLO with the required payload — the set of parameters you pass to the PHLO. You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through parameters when you trigger the PHLO from your application.In either case, you need your Auth ID and Auth Token, which you can get from the overview page of the Plivo console.

You also need the PHLO ID, which you can copy from the PHLO list page.

With a static payload

When you configure values when creating the PHLO, they act as a static payload.

Code

Create a file called trigger_phlo.py and paste into it this code.

import plivo

auth_id = '<auth_id>'
auth_token = '<auth_token>'
phlo_id = '<phlo_id>' 
phlo_client = plivo.phlo.RestClient(auth_id=auth_id, auth_token=auth_token)
phlo = phlo_client.phlo.get(phlo_id)
response = phlo.run()
print(str(response))

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console.

With a dynamic payload

To use dynamic values for the parameters, use Liquid templating parameters when you create the PHLO …

… and pass the values from your code when you trigger it.

Code

Create a file called trigger_phlo.py and paste into it this code.

import plivo

auth_id = '<auth_id>'
auth_token = '<auth_token>'
phlo_id = '<phlo_id>'
payload = {"From" : "<sender_id>","To" : "<destination_number>"}
phlo_client = plivo.phlo.RestClient(auth_id=auth_id, auth_token=auth_token)
phlo = phlo_client.phlo.get(phlo_id)
response = phlo.run(**payload)
print(str(response))

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234).

Test

Save the file and run it.

python trigger_phlo.py

Here’s how to use Plivo APIs to create surveys using SMS text messages — sending questions and collecting answers.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming messages, you must have a Plivo phone number that supports SMS; you can rent numbers from the Numbers page of the Plivo console or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a Python development environment.

Create the survey application

Create a file called survey.py and paste into it this code.

from flask import Flask, request, Response
import plivo
from plivo import plivoxml

app = Flask(__name__)


@app.post("/send_survey/")
def send_survey():
    client = plivo.RestClient("<auth_id>", "<auth_token>")
    response = client.messages.create(
        src="<sender_id>",
        dst="<destination_number>",
        text='Did you find out all the information you needed? Please reply "Yes" or "No"',
    )
    return Response(str(response), mimetype="application/json"), 200


@app.post("/survey_response/")
def survey_response():
    from_number = request.values.get("From")
    to_number = request.values.get("To")
    text = request.values.get("Text")
    print(f"Message received - From: {from_number}, To: {to_number}, Text: {text}")

    if text.lower() == "yes":
        message_body = "Thank you for your feedback"
    elif text.lower() == "no":
        message_body = "We apologize for the inconvenience. A representative will contact you to assist you"
    else:
        message_body = f'Response received was "{text}", which is invalid. Please reply with either "Yes" or "No"'
    
    response = plivoxml.ResponseElement()
    response.add(plivoxml.MessageElement(message_body, src=to_number, dst=from_number))
    return Response(response.to_string(), mimetype="application/xml"), 200


if __name__ == "__main__":
    app.run(host="0.0.0.0", debug=True)

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234). In countries other than the US and Canada you can use a sender ID for the message source. You must have a Plivo phone number to send messages to the US or Canada; you can buy a Plivo number from Phone Numbers > Buy Numbers on the Plivo console or via the Numbers API.

We recommend that you store your credentials in the auth_id and auth_token environment variables to avoid the possibility of accidentally committing them to source control. If you do this, you can initialize the client with no arguments and Plivo will automatically fetch the values from the environment variables. You can use os module(os.environ) to store environment variables and fetch them when initializing the client.

Test

Save the file and run it.

$ python survey.py

Overview

This guide shows how to conduct an SMS survey. Surveys can help businesses with market research. Using SMS for surveys lets organizations process input quickly and efficiently.You can conduct SMS surveys either by using our PHLO visual workflow builder or our APIs. Follow the instructions in one of the tabs below.

Using PHLO
Using API

You can create and deploy a PHLO to conduct an SMS survey with a few clicks on the PHLO canvas and trigger it with a few lines of code.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. If this is your first time triggering a PHLO with PHP, follow our instructions to set up a PHP development environment.

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

Click Create New PHLO.
In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.
The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.
If you plan to use a dynamic payload — passing values through parameters when you trigger the PHLO from your application — click on the Start node to open the Configuration pane. Under API Request, enter key names for the variables you want use in your payload — From, To, and Message fields.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Send Message component onto the canvas. When a component is placed on the canvas it becomes a node.
Draw a line to connect the Start node’s API Request trigger state to the Send Message node.
In the Configuration pane at the right of the canvas, configure the Send Message node with a sender ID in the From field. Enter the destination numbers you wish to send a message to in the To field. Put your message in the Text field.
You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through Liquid templating parameters when you trigger the PHLO from your application.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Branch component onto the canvas.
Draw a line to connect the Start node’s Incoming Message trigger state to the Branch node.
In the Configuration pane at the right of the canvas, configure the Branch node. Rename the node to Handle_Reply. For Variable to compare, enter two curly braces to view all available variables, then select Start.message.msg.
Click the pencil icon and name the first condition Satisfied. Leave the Operation “is equal to” and enter a value of 1.
Add a second condition. Name it Not Satisfied and enter a value of 2.
Once you’ve configured the node, click Validate to save the configuration.
Drag two Send Message nodes onto the canvas. Draw lines to connect them to the Handle_Reply node using the Satisfied and Not Satisfied trigger states.
In the Configuration pane for each of the Send Message nodes, specify the From and To keys you configured in the Start node. Enter two curly brackets to display a list of all available variables. In the Message field, you can enter a static message, or combine static text with a variable that includes dynamic text if you specified the variable as a key in the Start node configuration pane.
Rename the nodes Reply_Satisfied and Reply_NotSatisfied.
Once you’ve configured the nodes, click Validate to save their configurations.
From the list of components on the left-hand side, drag and drop the HTTP Request component onto the canvas. Draw four lines to connect the Sent and Failed trigger states of both the Reply_Satisfied and Reply_NotSatisfied nodes to the HTTP Request node.
In the Configuration pane for the HTTP Request node, rename the node to Handle_Callback. Enter URL to make the request to. The default method used is GET, but you can click on the box to choose POST, PUT, or DELETE instead. Specify Headers, Auth, Params, and Body values on their respective tabs as necessary.
Once you’ve configured the node, click Validate to save the configuration.

After you complete the configuration, give the PHLO a name by clicking in the upper left, then click Save.Your complete PHLO should look like this:

Your PHLO is now ready to test.

Trigger the PHLO

You integrate a PHLO into your application workflow by making an API request to trigger the PHLO with the required payload — the set of parameters you pass to the PHLO. You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through parameters when you trigger the PHLO from your application.In either case, you need your Auth ID and Auth Token, which you can get from the overview page of the Plivo console.

You also need the PHLO ID, which you can copy from the PHLO list page.

With a static payload

When you configure values when creating the PHLO, they act as a static payload.

Code

Create a file called TriggerPhlo.php and paste into it this code.

<?php
require 'vendor/autoload.php';
use Plivo\Resources\PHLO\PhloRestClient;
use Plivo\Exceptions\PlivoRestException;
$client = new PhloRestClient("<auth_id>", "<auth_token>");

$phlo = $client->phlo->get("<phlo_id>");
try {
    $response = $phlo->run();
    print_r($response);
} catch (PlivoRestException $ex) {
    print_r($ex);
}

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console.

With a dynamic payload

To use dynamic values for the parameters, use Liquid templating parameters when you create the PHLO …

… and pass the values from your code when you trigger it.

Code

Create a file called TriggerPhlo.php and paste into it this code.

<?php
require 'vendor/autoload.php';
use Plivo\Resources\PHLO\PhloRestClient;
use Plivo\Exceptions\PlivoRestException;
$client = new PhloRestClient("<auth_id>", "<auth_token>");

$phlo = $client->phlo->get("<phlo_id>");
try {
    $response = $phlo->run(["From" => "<sender_id>", "To" => "<destination_number>"]); // These are the fields entered in the PHLO console
    print_r($response);
} catch (PlivoRestException $ex) {
    print_r($ex);
}

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234).

Test

Save the file and run it.

php TriggerPhlo.php

Here’s how to use Plivo APIs to create surveys using SMS text messages — sending questions and collecting answers.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming messages, you must have a Plivo phone number that supports SMS; you can rent numbers from the Numbers page of the Plivo console or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a PHP development environment.

Create the survey application

Create a file called survey.php and paste into it this code.

<?php
require 'vendor/autoload.php';
use Plivo\RestClient;
$client = new RestClient("<auth_id>","<auth_token>");
$response = $client->messages->create(
   [  
        "src" => "<sender_id>",
        "dst" => "<destination_number>",
        "text"  =>"To win a holiday to your dream destination, text ‘MyHolidaydestination’ to 777-444-5555. Winners announced this Friday at the Tennery Shopping Center.",
        "url"=>"https://<yourdomain>.com/sms_status/",
   ]
);
print_r($response);
?>

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234). In countries other than the US and Canada you can use a sender ID for the message source. You must have a Plivo phone number to send messages to the US or Canada; you can buy a Plivo number from Phone Numbers > Buy Numbers on the Plivo console or via the Numbers API.

We recommend that you store your credentials in the auth_id and auth_token environment variables to avoid the possibility of accidentally committing them to source control. If you do this, you can initialize the client with no arguments and Plivo will automatically fetch the values from the environment variables. You can use os module(os.environ) to store environment variables and fetch them when initializing the client.

Test

Save the file and run it.

$ php SendSMS.php

Overview

This guide shows how to conduct an SMS survey. Surveys can help businesses with market research. Using SMS for surveys lets organizations process input quickly and efficiently.You can conduct SMS surveys either by using our PHLO visual workflow builder or our APIs. Follow the instructions in one of the tabs below.

Using PHLO
Using API

You can create and deploy a PHLO to conduct an SMS survey with a few clicks on the PHLO canvas and trigger it with a few lines of code.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. If this is your first time triggering a PHLO with .NET, follow our instructions to set up a .NET development environment.

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

Click Create New PHLO.
In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.
The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.
If you plan to use a dynamic payload — passing values through parameters when you trigger the PHLO from your application — click on the Start node to open the Configuration pane. Under API Request, enter key names for the variables you want use in your payload — From, To, and Message fields.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Send Message component onto the canvas. When a component is placed on the canvas it becomes a node.
Draw a line to connect the Start node’s API Request trigger state to the Send Message node.
In the Configuration pane at the right of the canvas, configure the Send Message node with a sender ID in the From field. Enter the destination numbers you wish to send a message to in the To field. Put your message in the Text field.
You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through Liquid templating parameters when you trigger the PHLO from your application.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Branch component onto the canvas.
Draw a line to connect the Start node’s Incoming Message trigger state to the Branch node.
In the Configuration pane at the right of the canvas, configure the Branch node. Rename the node to Handle_Reply. For Variable to compare, enter two curly braces to view all available variables, then select Start.message.msg.
Click the pencil icon and name the first condition Satisfied. Leave the Operation “is equal to” and enter a value of 1.
Add a second condition. Name it Not Satisfied and enter a value of 2.
Once you’ve configured the node, click Validate to save the configuration.
Drag two Send Message nodes onto the canvas. Draw lines to connect them to the Handle_Reply node using the Satisfied and Not Satisfied trigger states.
In the Configuration pane for each of the Send Message nodes, specify the From and To keys you configured in the Start node. Enter two curly brackets to display a list of all available variables. In the Message field, you can enter a static message, or combine static text with a variable that includes dynamic text if you specified the variable as a key in the Start node configuration pane.
Rename the nodes Reply_Satisfied and Reply_NotSatisfied.
Once you’ve configured the nodes, click Validate to save their configurations.
From the list of components on the left-hand side, drag and drop the HTTP Request component onto the canvas. Draw four lines to connect the Sent and Failed trigger states of both the Reply_Satisfied and Reply_NotSatisfied nodes to the HTTP Request node.
In the Configuration pane for the HTTP Request node, rename the node to Handle_Callback. Enter URL to make the request to. The default method used is GET, but you can click on the box to choose POST, PUT, or DELETE instead. Specify Headers, Auth, Params, and Body values on their respective tabs as necessary.
Once you’ve configured the node, click Validate to save the configuration.

After you complete the configuration, give the PHLO a name by clicking in the upper left, then click Save.Your complete PHLO should look like this:

Your PHLO is now ready to test.

Trigger the PHLO

You integrate a PHLO into your application workflow by making an API request to trigger the PHLO with the required payload — the set of parameters you pass to the PHLO. You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through parameters when you trigger the PHLO from your application.In either case, you need your Auth ID and Auth Token, which you can get from the overview page of the Plivo console.

You also need the PHLO ID, which you can copy from the PHLO list page.

With a static payload

When you configure values when creating the PHLO, they act as a static payload.

Code

In Visual Studio, open the file in the CS project called Program.cs and paste into it this code.

using System;
using Plivo;

namespace test_PHLO
{
    class Program
    {
        public static void Main(string[] args)
        {
            var phloClient = new PhloApi("<auth_id>", "<auth_token>"); 
            var phloID = "<phlo_id>";
            var phlo = phloClient.Phlo.Get(phloID);   
            Console.WriteLine(phlo.Run());
        }
    }
}

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console.

With a dynamic payload

To use dynamic values for the parameters, use Liquid templating parameters when you create the PHLO …

… and pass the values from your code when you trigger it.

Code

In Visual Studio, open the file in the CS project called Program.cs and paste into it this code.

using System;
using System.Collections.Generic;
using Plivo;

namespace test_PHLO
{
    class Program
    {
        public static void Main(string[] args)
        {
            var phloClient = new PhloApi("<auth_id>", "<auth_token>");
            var phloID = "<phlo_id>";
            var phlo = phloClient.Phlo.Get(phloID); 
            var data = new Dictionary<string, object>
            {
                { "From", "<sender_id>" },
                { "To", "<destination_number>" }

            };  
            Console.WriteLine(phlo.Run(data));
        }
    }
}

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234).

Test

Save the file and run it.

Here’s how to use Plivo APIs to create surveys using SMS text messages — sending questions and collecting answers.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming messages, you must have a Plivo phone number that supports SMS; you can rent numbers from the Numbers page of the Plivo console or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a .NET development environment.

Create a .NET controller

Create a new project and navigate to the Controllers directory. Create a controller called Survey.cs and paste into it this code.

using System;
using Plivo;
using System.Collections.Generic;
using Microsoft.AspNetCore.Mvc;


namespace demo.Controllers
{
    public class Survey : Controller
    {

        public IActionResult Index()
        {
            var api = new PlivoApi("<auth_id>","<auth_token>");
            var response = api.Message.Create(
                src: "<sender_id>",
                dst: "<destination_number>",
                text: "Did you find out all the information you needed? Please reply 'Yes' or 'No'");
            return this.Content(response.ToString());
        }

        public IActionResult survey_response()
        {
            String from_number = Request.Form["From"];
            String to_number = Request.Form["To"];
            String text = Request.Form["Text"];
            String body;

            if (text.ToLower() == "yes")
            {
                body = "Thank you for your feedback";
            }
            else if(text.ToLower() == "no")
            {
                body = "We apologize for the inconvenience. A representative will contact you to assist you";
            }
            else
            {
                body = String.Format("Response received was {0}, which is invalid. Please reply with either 'Yes' or 'No'", text);
            }

            Plivo.XML.Response resp = new Plivo.XML.Response();
            resp.AddMessage(body, new Dictionary<string, string>()
            {
                {"src", to_number},
                {"dst", from_number},
                {"type", "sms"}
            });
            var output = resp.ToString();
            Console.WriteLine(output);
            return this.Content(output, "text/xml");
        }
    }
}

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234). In countries other than the US and Canada you can use a sender ID for the message source. You must have a Plivo phone number to send messages to the US or Canada; you can buy a Plivo number from Phone Numbers > Buy Numbers on the Plivo console or via the Numbers API.

We recommend that you store your credentials in the auth_id and auth_token environment variables to avoid the possibility of accidentally committing them to source control. If you do this, you can initialize the client with no arguments and Plivo will automatically fetch the values from the environment variables. You can use the Environment.SetEnvironmentVariable method to store environment variables and Environment.GetEnvironmentVariable to fetch them when initializing the client.

Run the project and you should see your basic server application in action at http://localhost:5001/survey/.Set up ngrok to expose your local server to the internet.

Create a Plivo application for the SMS survey

Associate the controller you created with Plivo by creating a Plivo application. Visiting Messaging > Applications and click Add New Application. You can also use Plivo’s Application API.Give your application a name — we called ours SMS-Survey. Enter the server URL you want to use (for example https://<yourdomain>.com/survey/survey_response/) in the Message URL field and set the method to POST. Click Create Application to save your application.

Assign a Plivo number to your application

Navigate to the Numbers page and select the phone number you want to use for this application.From the Application Type drop-down, select XML Application.From the Plivo Application drop-down, select SMS-Survey (the name we gave the application).Click Update Number to save.

Test

Send a text message to the Plivo number you specified using any phone.

Overview

This guide shows how to conduct an SMS survey. Surveys can help businesses with market research. Using SMS for surveys lets organizations process input quickly and efficiently.You can conduct SMS surveys either by using our PHLO visual workflow builder or our APIs. Follow the instructions in one of the tabs below.

Using PHLO
Using API

You can create and deploy a PHLO to conduct an SMS survey with a few clicks on the PHLO canvas and trigger it with a few lines of code.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. If this is your first time triggering a PHLO with Java, follow our instructions to set up a Java development environment.

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

Click Create New PHLO.
In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.
The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.
If you plan to use a dynamic payload — passing values through parameters when you trigger the PHLO from your application — click on the Start node to open the Configuration pane. Under API Request, enter key names for the variables you want use in your payload — From, To, and Message fields.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Send Message component onto the canvas. When a component is placed on the canvas it becomes a node.
Draw a line to connect the Start node’s API Request trigger state to the Send Message node.
In the Configuration pane at the right of the canvas, configure the Send Message node with a sender ID in the From field. Enter the destination numbers you wish to send a message to in the To field. Put your message in the Text field.
You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through Liquid templating parameters when you trigger the PHLO from your application.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Branch component onto the canvas.
Draw a line to connect the Start node’s Incoming Message trigger state to the Branch node.
In the Configuration pane at the right of the canvas, configure the Branch node. Rename the node to Handle_Reply. For Variable to compare, enter two curly braces to view all available variables, then select Start.message.msg.
Click the pencil icon and name the first condition Satisfied. Leave the Operation “is equal to” and enter a value of 1.
Add a second condition. Name it Not Satisfied and enter a value of 2.
Once you’ve configured the node, click Validate to save the configuration.
Drag two Send Message nodes onto the canvas. Draw lines to connect them to the Handle_Reply node using the Satisfied and Not Satisfied trigger states.
In the Configuration pane for each of the Send Message nodes, specify the From and To keys you configured in the Start node. Enter two curly brackets to display a list of all available variables. In the Message field, you can enter a static message, or combine static text with a variable that includes dynamic text if you specified the variable as a key in the Start node configuration pane.
Rename the nodes Reply_Satisfied and Reply_NotSatisfied.
Once you’ve configured the nodes, click Validate to save their configurations.
From the list of components on the left-hand side, drag and drop the HTTP Request component onto the canvas. Draw four lines to connect the Sent and Failed trigger states of both the Reply_Satisfied and Reply_NotSatisfied nodes to the HTTP Request node.
In the Configuration pane for the HTTP Request node, rename the node to Handle_Callback. Enter URL to make the request to. The default method used is GET, but you can click on the box to choose POST, PUT, or DELETE instead. Specify Headers, Auth, Params, and Body values on their respective tabs as necessary.
Once you’ve configured the node, click Validate to save the configuration.

After you complete the configuration, give the PHLO a name by clicking in the upper left, then click Save.Your complete PHLO should look like this:

Your PHLO is now ready to test.

Trigger the PHLO

You integrate a PHLO into your application workflow by making an API request to trigger the PHLO with the required payload — the set of parameters you pass to the PHLO. You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through parameters when you trigger the PHLO from your application.In either case, you need your Auth ID and Auth Token, which you can get from the overview page of the Plivo console.

You also need the PHLO ID, which you can copy from the PHLO list page.

With a static payload

When you configure values when creating the PHLO, they act as a static payload.

Code

Create a Java class called TriggerPhlo and paste into it this code.

import com.plivo.api.Plivo;
import com.plivo.api.PlivoClient;
import com.plivo.api.exceptions.PlivoRestException;
import com.plivo.api.models.phlo.Phlo;
import java.io.IOException;

public class Example
{
    private static final String authId = "<auth_id>";
    private static final String authToken = "<auth_token>";
    private static PlivoClient client = new PlivoClient(authId, authToken);
    public static void main(String[] args) throws IOException, PlivoRestException
    {
        String phloId = "<phlo_id>";
        Plivo.init(authId, authToken);
        Phlo phlo = Phlo.getter(phloId).client(client).get();
        PhloUpdateResponse response = Phlo.updater(phloId).payload().run();
    }
}

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console.

With a dynamic payload

To use dynamic values for the parameters, use Liquid templating parameters when you create the PHLO …

… and pass the values from your code when you trigger it.

Code

Create a Java class called TriggerPhlo and paste into it this code.

import com.plivo.api.Plivo;
import com.plivo.api.PlivoClient;
import com.plivo.api.exceptions.PlivoRestException;
import com.plivo.api.models.phlo.Phlo;
import java.io.IOException;

public class Example
{
    private static final String authId = "<auth_id>";
    private static final String authToken = "<auth_token>";
    private static PlivoClient client = new PlivoClient(authId, authToken);
    public static void main(String[] args) throws IOException, PlivoRestException
    {
        String phloId = "<phlo_id>";
        Plivo.init(authId, authToken);
        Phlo phlo = Phlo.getter(phloId).client(client).get();
        Map<String, Object> payload = new HashMap<>();
        payload.put("From", "<sender_id>");
        payload.put("To", "<destination_number>");
        PhloUpdateResponse response = Phlo.updater(phloId).payload(payload).run();
    }
}

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234).

Test

Save the file and run it.

Here’s how to use Plivo APIs to create surveys using SMS text messages — sending questions and collecting answers.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming messages, you must have a Plivo phone number that supports SMS; you can rent numbers from the Numbers page of the Plivo console or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a Python development environment.

Create the survey application

Edit the PlivoSmsApplication.java file in the src/main/java/com.example.demo/ folder and paste into it this code.

package com.example.demo;

import com.plivo.api.Plivo;
import com.plivo.api.exceptions.PlivoRestException;
import com.plivo.api.exceptions.PlivoXmlException;
import com.plivo.api.models.message.Message;
import com.plivo.api.models.message.MessageCreateResponse;
import com.plivo.api.xml.Response;
import com.plivo.api.xml.Message;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;

import java.io.IOException;

@SpringBootApplication
@RestController
public class ExampleAppApplication {

	public static void main(String[] args) {
		SpringApplication.run(ExampleAppApplication.class, args);
	}
	
	@PostMapping(value = "/send_survey/", produces = {"application/json"})
	public MessageCreateResponse sendSMS() throws IOException, PlivoRestException {
		Plivo.init("<auth_id>", "<auth_token>");
		MessageCreateResponse response = Message.creator(
				"<sender_id>",
				"<destination_number>",
				"Did you find out all the information you needed? Please reply \"Yes\" or \"No\"").create();
		System.out.println(response);
		return response;
	}
	
	@PostMapping(value = "/survey_response/", produces = {"text/xml"})
	public String postBody(String From, String To, String Text) throws PlivoXmlException {
		System.out.println(From + " " + To + " " + Text);
		String message_body;
		if (Text.toLowerCase() == "yes") {
			message_body = "Thank you for your feedback";
		}
		else if (Text.toLowerCase() == "no") {
			message_body = "We apologize for the inconvenience. A representative will contact you to assist you";
		}
		else{
			message_body = String.format("Response received was %1$s, which is invalid. Please reply with either \"Yes\" or \"No\"", Text);
		}
		Response response = new Response().children(
				new Message(To,From,message_body));
		System.out.println(response.toXmlString());
		return response.toXmlString();
	}
}

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234). In countries other than the US and Canada you can use a sender ID for the message source. You must have a Plivo phone number to send messages to the US or Canada; you can buy a Plivo number from Phone Numbers > Buy Numbers on the Plivo console or via the Numbers API.

We recommend that you store your credentials in the auth_id and auth_token environment variables to avoid the possibility of accidentally committing them to source control. If you do this, you can initialize the client with no arguments and Plivo will automatically fetch the values from the environment variables. You can use os module(os.environ) to store environment variables and fetch them when initializing the client.

Test

Save the file and run it.

Overview

This guide shows how to conduct an SMS survey. Surveys can help businesses with market research. Using SMS for surveys lets organizations process input quickly and efficiently.You can conduct SMS surveys either by using our PHLO visual workflow builder or our APIs. Follow the instructions in one of the tabs below.

Using PHLO
Using API

You can create and deploy a PHLO to conduct an SMS survey with a few clicks on the PHLO canvas and trigger it with a few lines of code.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. If this is your first time triggering a PHLO with Go, follow our instructions to set up a Go development environment.

Create the PHLO

To create a PHLO, visit the PHLO page of the Plivo console. If this is your first PHLO, the PHLO page will be empty.

Click Create New PHLO.
In the Choose your use case pop-up, click Build my own. The PHLO canvas will appear with the Start node.
The Start node is the starting point of any PHLO. It lets you trigger a PHLO to start upon one of three actions: incoming SMS message, incoming call, or API request.
If you plan to use a dynamic payload — passing values through parameters when you trigger the PHLO from your application — click on the Start node to open the Configuration pane. Under API Request, enter key names for the variables you want use in your payload — From, To, and Message fields.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Send Message component onto the canvas. When a component is placed on the canvas it becomes a node.
Draw a line to connect the Start node’s API Request trigger state to the Send Message node.
In the Configuration pane at the right of the canvas, configure the Send Message node with a sender ID in the From field. Enter the destination numbers you wish to send a message to in the To field. Put your message in the Text field.
You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through Liquid templating parameters when you trigger the PHLO from your application.
Once you’ve configured the node, click Validate to save the configuration.
From the list of components on the left-hand side, drag and drop the Branch component onto the canvas.
Draw a line to connect the Start node’s Incoming Message trigger state to the Branch node.
In the Configuration pane at the right of the canvas, configure the Branch node. Rename the node to Handle_Reply. For Variable to compare, enter two curly braces to view all available variables, then select Start.message.msg.
Click the pencil icon and name the first condition Satisfied. Leave the Operation “is equal to” and enter a value of 1.
Add a second condition. Name it Not Satisfied and enter a value of 2.
Once you’ve configured the node, click Validate to save the configuration.
Drag two Send Message nodes onto the canvas. Draw lines to connect them to the Handle_Reply node using the Satisfied and Not Satisfied trigger states.
In the Configuration pane for each of the Send Message nodes, specify the From and To keys you configured in the Start node. Enter two curly brackets to display a list of all available variables. In the Message field, you can enter a static message, or combine static text with a variable that includes dynamic text if you specified the variable as a key in the Start node configuration pane.
Rename the nodes Reply_Satisfied and Reply_NotSatisfied.
Once you’ve configured the nodes, click Validate to save their configurations.
From the list of components on the left-hand side, drag and drop the HTTP Request component onto the canvas. Draw four lines to connect the Sent and Failed trigger states of both the Reply_Satisfied and Reply_NotSatisfied nodes to the HTTP Request node.
In the Configuration pane for the HTTP Request node, rename the node to Handle_Callback. Enter URL to make the request to. The default method used is GET, but you can click on the box to choose POST, PUT, or DELETE instead. Specify Headers, Auth, Params, and Body values on their respective tabs as necessary.
Once you’ve configured the node, click Validate to save the configuration.

After you complete the configuration, give the PHLO a name by clicking in the upper left, then click Save.Your complete PHLO should look like this:

Your PHLO is now ready to test.

Trigger the PHLO

You integrate a PHLO into your application workflow by making an API request to trigger the PHLO with the required payload — the set of parameters you pass to the PHLO. You can define a static payload by specifying values when you create the PHLO, or define a dynamic payload by passing values through parameters when you trigger the PHLO from your application.In either case, you need your Auth ID and Auth Token, which you can get from the overview page of the Plivo console.

You also need the PHLO ID, which you can copy from the PHLO list page.

With a static payload

When you configure values when creating the PHLO, they act as a static payload.

Code

Create a file called TriggerPhlo.go and paste into it this code.

package main

import (
	"fmt"
	"plivo-go"
)
const authId = "<auth_id>"
const authToken = "<auth_token>"
const phloId = "<phlo_id>"

func main() {
	testPhloRunWithoutParams()
}

func testPhloRunWithoutParams() {
	phloClient, err := plivo.NewPhloClient(authId, authToken, &plivo.ClientOptions{})
	if err != nil {
			fmt.Print("Error", err.Error())
			return
		}
	phloGet, err := phloClient.Phlos.Get(phloId)
	if err != nil {
			fmt.Print("Error", err.Error())
			return
		}
	response, err := phloGet.Run(nil)
	if err != nil {
			fmt.Print("Error", err.Error())
			return
		}
	fmt.Printf("Response: %#v\n", response)
}

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console.

With a dynamic payload

To use dynamic values for the parameters, use Liquid templating parameters when you create the PHLO …

… and pass the values from your code when you trigger it.

Code

Create a file called TriggerPhlo.go and paste into it this code.

package main

import (
	"fmt"
	"plivo-go"
)
const authId = "<auth_id>"
const authToken = "<auth_token>"
const phloId = "<phlo_id>"

func main() {
	testPhloRunWithParams()
}

func testPhloRunWithParams() {
	phloClient, err := plivo.NewPhloClient(authId, authToken, &plivo.ClientOptions{})
	if err != nil {
			fmt.Print("Error", err.Error())
			return
		}
	phloGet, err := phloClient.Phlos.Get(phloId)
	if err != nil {
			fmt.Print("Error", err.Error())
			return
		}
	//pass corresponding from and to values
	type params map[string]interface{}
	response, err := phloGet.Run(params{
		"From": "<sender_id>",
		"To":   "<destination_number>",
	})

	if err != nil {
		println(err)
	}
	fmt.Printf("Response: %#v\n", response)
}

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phlo_id placeholder with your PHLO ID from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234).

Test

Save the file and run it.

go run TriggerPhlo.go

Here’s how to use Plivo APIs to create surveys using SMS text messages — sending questions and collecting answers.

How it works

Prerequisites

To get started, you need a Plivo account — sign up with your work email address if you don’t have one already. To receive incoming messages, you must have a Plivo phone number that supports SMS; you can rent numbers from the Numbers page of the Plivo console or by using the Numbers API. If this is your first time using Plivo APIs, follow our instructions to set up a Go development environment.

Create the survey application

Create a file called survey.go and paste into it this code.

package main

import (
	"encoding/json"
	"fmt"
	"net/http"
	"strings"

	"github.com/go-martini/martini"
	"github.com/plivo/plivo-go/v7"
	"github.com/plivo/plivo-go/v7/xml"
)

func main() {
	m := martini.Classic()

	m.Post("/send_survey/", func(w http.ResponseWriter, r *http.Request) string {
		client, err := plivo.NewClient("<auth_id>", "<auth_token>", &plivo.ClientOptions{})
		if err != nil {
			fmt.Print("Error", err.Error())
	
		}
		response, err := client.Messages.Create(
			plivo.MessageCreateParams{
				Src:  "<sender_id>",
				Dst:  "<destination_number>",
				Text: "Did you find out all the information you needed? Please reply 'Yes' or 'No'",
			},
		)
		if err != nil {
			fmt.Print("Error", err.Error())
	
		}
		b, err := json.Marshal(response)
		if err != nil {
			fmt.Println("error:", err)
		}
		fmt.Printf("Response: %#v\n", b)
		return string(b)
	})
	
	m.Post("/survey_response/", func(w http.ResponseWriter, r *http.Request) string {
		w.Header().Set("Content-Type", "application/xml")
		from_number := r.FormValue("From")
		to_number := r.FormValue("To")
		text := r.FormValue("Text")
		var message_body string
		if strings.ToLower(text) == "yes" {
			message_body = "Thank you for your feedback"
		} else if strings.ToLower(text) == "no" {
			message_body = "We apologize for the inconvenience. A representative will contact you to assist you"
		} else {
			message_body = fmt.Sprintf("Response received was %s, which is invalid. Please reply with either 'Yes' or 'No'", text)
		}
		return xml.ResponseElement{
			Contents: []interface{}{
				new(xml.MessageElement).
					SetDst(to_number).
					SetSrc(from_number).
					SetContents(message_body),
			},
		}.String()
	})
	
	m.Run()
}

Replace the auth placeholders with your authentication credentials from the Plivo console. Replace the phone number placeholders with actual phone numbers in E.164 format (for example, +12025551234). In countries other than the US and Canada you can use a sender ID for the message source. You must have a Plivo phone number to send messages to the US or Canada; you can buy a Plivo number from Phone Numbers > Buy Numbers on the Plivo console or via the Numbers API.

We recommend that you store your credentials in the auth_id and auth_token environment variables to avoid the possibility of accidentally committing them to source control. If you do this, you can initialize the client with no arguments and Plivo will automatically fetch the values from the environment variables. You can use os module(os.environ) to store environment variables and fetch them when initializing the client.

Test

Save the file and run it.

$ go run survey.go

​Overview

​How it works

​Prerequisites

​Create the PHLO

​Trigger the PHLO

​With a static payload

​Code

​With a dynamic payload

​Code

​Test

​How it works

​Prerequisites

​Create the survey application

​Test

​Overview

​How it works

​Prerequisites

​Create the PHLO

​Trigger the PHLO

​With a static payload

​Code

​With a dynamic payload

​Code

​Test

​How it works

​Prerequisites

​Create a Rails controller

​Create the survey application

​Add a route

​Test

​Overview

​How it works

​Prerequisites

​Create the PHLO

​Trigger the PHLO

​With a static payload

​Code

​With a dynamic payload

​Code

​Test

​How it works

​Prerequisites

​Create the survey application

​Test

​Overview

​How it works

​Prerequisites

​Create the PHLO

​Trigger the PHLO

​With a static payload

​Code

​With a dynamic payload

​Code

​Test

​How it works

​Prerequisites

​Create the survey application

​Test

​Overview

​How it works

​Prerequisites

​Create the PHLO

​Trigger the PHLO

​With a static payload

​Code

​With a dynamic payload

​Code

​Test

​How it works

​Prerequisites

​Create a .NET controller

​Create a Plivo application for the SMS survey

​Assign a Plivo number to your application

Test

​Overview

​How it works

​Prerequisites

​Create the PHLO

​Trigger the PHLO

​With a static payload

Overview

How it works

Prerequisites

Create the PHLO

Trigger the PHLO

With a static payload

Code

With a dynamic payload

Code

Test

How it works

Prerequisites

Create the survey application

Test

Overview

How it works

Prerequisites

Create the PHLO

Trigger the PHLO

With a static payload

Code

With a dynamic payload

Code

Test

How it works

Prerequisites

Create a Rails controller

Create the survey application

Add a route

Test

Overview

How it works

Prerequisites

Create the PHLO

Trigger the PHLO

With a static payload

Code

With a dynamic payload

Code

Test

How it works

Prerequisites

Create the survey application

Test

Overview

How it works

Prerequisites

Create the PHLO

Trigger the PHLO

With a static payload

Code

With a dynamic payload

Code

Test

How it works

Prerequisites

Create the survey application

Test

Overview

How it works

Prerequisites

Create the PHLO

Trigger the PHLO

With a static payload

Code

With a dynamic payload

Code

Test

How it works

Prerequisites

Create a .NET controller

Create a Plivo application for the SMS survey

Assign a Plivo number to your application

Overview

How it works

Prerequisites

Create the PHLO

Trigger the PHLO

With a static payload

Code