Google script doPost to Twilio - google-apps-script

Question

I trying to use doPost in google script to get parameter from source A and get twilio to send sms.
Currently, by using the code given by twilio, I can send whatever detail in google script.
I have created the webapp exec url to put in source A so now source A and google script can communicating.
I just do not know how to do a proper script in google script to get the parameters from source A.
Can anyone help me.. thank you in advance !
I am new to coding, not sure even source A code/format is correct -_-"
Source A:(json)
data input field
output result
{
"$type": "Nirvana.Data.TaskResultWebhook, V2API",
"Headers": {
"$type": "System.Collections.Generic.Dictionary`2[[System.String, mscorlib],[System.String, mscorlib]], mscorlib",
"Authorization": "Basic xxxxxxxxxxxxxxxxxx=="
},
"Payload": "{\"To\": \"[phone]\",\"Body\": \"testing\",\"From\" : \"business\"}",
"Url": "https://script.google.com/macros/s/xxxxxxxxxx/exec",
"Verb": "Post",
"ContentType": "JSON",
"MimeType": "application/json",
"TimeoutSeconds": 180,
"MaxRetryCount": 3,
"AsyncExec": false,
"AppErrors": {
"$type": "Jeenee.DataTypes.AppErrors, Jeenee.DataTypes",
"RecordInfo": false,
"RecordWarning": true,
"AnnotateErrors": false,
"Errors": []
},
"TaskType": "Webhook",
"TaskName": "New Task"
}
Google script (code from twilio)
function doPost(e) {
var messages_url = "https://api.twilio.com/2010-04-01/Accounts/ACxxxxxxxxxxxx/Messages.json";
var payload = {
"To": "[phone]",
"Body" : "AAAAAAAAAA",
"From" : "BBBBBBBBBB"
};
var options = {
"method" : "post",
"payload" : payload
};
options.headers = {
"Authorization" : "Basic " + Utilities.base64Encode("ACxxxxxxxxxx:xxxxxxxxxxxx")
};
UrlFetchApp.fetch(messages_url, options);
}
Step 3 (twilio)
send sms

Answer 1

Not sure who's calling your script. If you're using it as a webhook you can get the parameters in the object passed into your doPost function when it is called.
function doPost(e) {
var params = e.parameter;
var from = params.From;
var to = params.To;
var body = params.Body;
var messages_url = "https://api.twilio.com/2010-04-01/Accounts/ACxxxxxxxxxxxx/Messages.json";
var payload = {
"To": to,
"Body" : body,
"From" : from
};
var options = {
"method" : "post",
"payload" : payload
};
options.headers = {
"Authorization" : "Basic " + Utilities.base64Encode("ACxxxxxxxxxx:xxxxxxxxxxxx")
};
UrlFetchApp.fetch(messages_url, options);
}