Azure function not returning result

Question

I'm following a tutorial and I can see the correct result from the console.log(result) in the console, but when I make the GET request from postman, it returns nothing. Why is send(200, JSON.parse(JSON.stringify(result))); not working?

I also did a console.log(JSON.parse(JSON.stringify(result))) and it returns correctly the data correctly to the console. Just can't send it in response for some reason.

var MongoClient = require('mongodb').MongoClient;
var Post = require('./model/post');

module.exports = async function (context, req) {

  let currentPage = 1;
  context.log("process.env.CosmosDBConnectionString");
  context.log(process.env.CosmosDBConnectionString);

  MongoClient.connect(process.env.CosmosDBConnectionString, (err, client) => {

    let send = response(client, context);

    if (err) send(500, err.message);


    console.log("DBNAME: " + process.env.dbName);
    let db = client.db(process.env.dbName);

    let queryDate = Date.now();


    db.collection('listings').find({}) //test

      .toArray((err, result) => {
        console.log(result);
        if (err) send(500, err.message);
        send(200, JSON.parse(JSON.stringify(result)));

      });
  });




};

function response(client, context) {
  return function (status, body) {
    context.res = {
      status: status,
      body: body
    };

    client.close();
    context.done();
  };
}

Answer 1

I am not sure what "send" function does in this case, but I think if you just change it to the following should work:

db.collection('listings').find({}) //test
.toArray((err, result) => {
    console.log(result);
    if (err)
    {
        context.res = { status: 500, body: err.message }; 
    }
    else 
    {
        context.res = { status: 200, body: JSON.parse(JSON.stringify(result)) }; 
    }
    context.done();
});