Issue posting API request from AWS Lambda with nodejs - node.js

Question

completely beginner question here, but im stuck for hours, hope someone can help!
I'm building some thing over AWS API Gateway + Lambda, where I receive a POST request on AWS and I send some data to another API.
I'm using https from NodeJS (from examples i found here on stackoverflow) but it doesnt seem to be working...I'm testing by sending it to a webhook inbox in beeceptor
Could you give me some light?
exports.handler = async (event) => {
if(event.httpMethod == 'POST'){
return pedido(event);
}
};
var aid = '';
var cep = '';
const pedido = event => {
let body = JSON.parse(event.body);
var aid = body.cid;
//var sku = body.items.id
var cep = body.cep;
callapi(cep,aid);
console.log("teste cep ", body.cep);
return{
statusCode: 200,
body: JSON.stringify({
message: body.cep,
convid: aid
})
};
};
function callapi(cep,aid){
const https = require('https');
const data = JSON.stringify({
message: cep,
convid: aid,
test: 123
});
console.log("data is ", data);
const options = {
hostname: 'testbot.free.beeceptor.com',
//port: 443,
path: '/',
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Content-Length': data.length
}
};
console.log("code was here ");
var req = https.request(options, (res) => {
console.log('req:', req);
console.log('res:', res);
console.log('statusCode:', res.statusCode);
console.log('headers:', res.headers);
res.on('data', (d) => {
process.stdout.write(d);
});
});
console.log('req:', req);
req.on('error', (e) => {
console.error(e);
});
req.write(data);
req.end();
}

Answer 1

There's at least one problem with your code:
The callapi function is making a request and this request is using a callback to notify you about a response. However, you are not waiting for it in your Lambda code and hence you won't see its response in your logs. Add appropriate awaits or Promises to it, so your code won't return before you've received a response.
The structure of your code could look similar to this:
exports.handler = async (event) => {
if (event.httpMethod === 'POST') {
return await pedido(event);
}
};
async function pedido(event) {
// init vars...
// wait for your API call
await callapi(cep, aid);
// then return a response
return {...}
}
async function callapi(cep, aid) {
// init vars like https and others...
// then use a promise and resolve it when you receive the request's callback (= response) or an error
return new Promise((resolve, reject) => {
const req = https.request(options, (res) => {
// handle response however you like ...
// then resolve the promise when you're done
resolve();
});
req.on('err', (e) => {
// reject in case the request fails
reject(e);
});
});
}
Does this solve your problem? If not, having some more logs of your method and a simplified code example would help a lot!