nodejs writes a program that executes a call to an HTTP endpoint at a specified time

Question

Summary

I'm creating a program to send a request to the HTTP endpoint as follows.

1. send a HTTP request by POST
2. receive response data
3. HTTP request by PUT at the ID and time received by POST during POST response.
4. receive response data

code

A nodejs in the making

'use strict'

const http = require('http');
const HOST = `hoge.io`;
const PATH = `/path`;

let postData = {
  "name": "stack",
};

let postDataStr = JSON.stringify(postData);
let options = {
    host: HOST,
    port: 80,
    path: PATH,
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'Content-Length': Buffer.byteLength(postDataStr)
    }
};

let req = http.request(options, (res) => {
  let data = '';
  let body = '';
  console.log(`POST statusCode: ${res.statusCode}`)
  res.setEncoding('utf8');
  res.on('data', (chunk) => {
    body += chunk;
  });

  res.on('end', () => {
    let resultData = '';
      data = JSON.parse(body);
      let now = new Date().getTime();
      let time = data.actives_at - now;
      // setTimeout(putData.bind(this, data), time);
      console.log(data)
  });
});
req.on('error', (e) => {
  console.log('error: ' + e.message);
});
req.write(postDataStr);
req.end();

response value

node api.js
{
  id: 'xxxxxxxxxxx',
  actives_at: xxxxxxxxxx (in UNIX time milliseconds),
  called_at: xxxxxxxxxx,
}

What I want to do.

When this reaches the time of actsives_at, we want to send the request to the endpoint with a PUT as shown below.

$ curl -X 'PUT' -H 'X-Id:xxxxxxxxxx' http://hoge.io/path

What additions to the code would I need to make to make this happen?

Answer 1

You can consider using AgendaJS (https://github.com/agenda/agenda), a scheduler using Mongodb to store your data. It will accept a Date object or a timestamp or even a MomentJS object and will run a function you define when the time come