Firebase cloud function

index.js

var functions = require('firebase-functions');
var mainRequest = require('request');

var urlStr = "https://3rdpartyapi.com/v2/food";
var reqObj = {
    url: urlStr,
    method: 'POST',
    headers: {
        'Authorization': 'Bearer xxxxxxx',
        'Content-Type': 'application/json',
        'x-app-id': 'xxxx',
        'x-app-key': 'xxxxxxx'
    }
};

// cloud function
exports.getInfo = functions.https.onRequest((request, response) => {

    // check what we've been sent from api.ai
    console.log("parameters:"+JSON.stringify(request.body.result.parameters));

    var food = JSON.stringify(request.body.result.parameters.food);

    // Let's kick off the function that requests the 3rd party api
    getInfoFrom3rdParty(food,nutrient,"sum");

    // I know this function call is 'pointless' but I have been hacking the code
    // to try to figure out the reason for the delay. I'll return
    // a promise etc. when it's working better (<15secs!).
    // I previously had the function in it's own module to help
    // with local development and will return to that.

    var resString = "We're looking up "+food;

    // send something back to api.ai for instant feedback (to check the call's worked)
    var payload = {
        "speech": resString,
        "source": "jo",
        "displayText": resString
    };
    response.writeHead(200, {"Content-Type": "application/json"});
    response.end(JSON.stringify(payload));
})

// secondary function - called from Firebase cloud function
function getInfoFrom3rdParty(food) {
    // log that this call has been made
    console.log("getInfoFrom3rdParty() called");

    reqObj.body = '{"query": "'+food+'"}';

    mainRequest(reqObj, function (error, response, body) {

        bodyjson = JSON.parse(response.body);

        var foodArr = bodyjson.foods;
        // return something sensible if we don't get anything back
        if (!foodArr) {
            var tmpObj = JSON.parse(reqObj.body);
            console.log("I'm afraid I couldn't find information about %s.", tmpObj.query);
            return;
        } else {
            console.log("API returned: " + foodArr);
        }

        if (error) {
            // todo: remember to check for "over limit" errors from api
            console.log('error:', error);
        }
    });
}