How to turn Postman API's request into Apps Script code?

I'm currently using Postman to do an API post request from a CRM software called Intercom. I followed the below documentation to do this:

https://developers.intercom.com/intercom-api-reference/v0/reference/creating-an-export-job

My purpose is to create a script via Google Apps Script to automate the API request.

I need to give the following elements:

Method: Post
URL: https://api.intercom.io/export/content/data
Headers: Authorization : Bearer 123456789, Accept : application/json, Content-Type: application/json
Body: "created_at_after": 1654041600, "created_at_before": 1656547200 (this is the date in Unix Timestamp)

The only parameter that will change is the body ("created_at_after" and "created_at_before"). Everything else will remain the same.

Below is the script I've created, that currently does not work. Any help on how to fix this would be appreciated. I'm quite a beginner programmer so apologies in advance if the problem is quite obvious.

function exportjob() {
  var url = 'https://api.intercom.io/export/content/data';
  var options = { 
    "Method": "post",
    "Headers": {
       "Authorization": "Bearer 123456789",
       "Accept": "application/json",
       "Content-Type": "application/json"
       },
    "Body": {
      "created_at_after": 1654041600,
      "created_at_before": 1656547200}
  }
  var response = UrlFetchApp.fetch(url, options);
}

Solution

From your showing document, I believe your goal is as follows.

You want to convert the following curl command to Google Apps Script.

  curl https://api.intercom.io/export/content/data \
  -X POST \
  -H 'Authorization:Bearer <Your access token>' \
  -H 'Accept: application/json' \
  -H 'Content-Type: application/json' -d '
  {
    "created_at_after": 1527811200,
    "created_at_before": 1530316800
  }'

Modification points:

At params of fetch(url, params) of Class UrlFetchApp, there are no properties of Method, Headers, Body.
In your situation, it seems that it is required to be sent the data as the string. And, by the content type of application/json, the data is parsed at the server side.

When these points are reflected in your script, how about the following modification?

Modified script:

function exportjob() {
  var url = 'https://api.intercom.io/export/content/data';
  var options = {
    "method": "post",
    "headers": {
      "Authorization": "Bearer 123456789",
      "Accept": "application/json",
    },
    "contentType": "application/json",
    "payload": JSON.stringify({
      "created_at_after": 1654041600,
      "created_at_before": 1656547200
    })
  }
  var response = UrlFetchApp.fetch(url, options);
  console.log(response.getContentText())
}

Note:

If an error occurs for the request, please confirm your access token and the data again. And, please provide the error message.

Reference:

fetch(url, params)