How to use Mollie Api with firebase cloud functions - firebase

Question

I could need some help setting up the node.js api from mollie with firebase cloud functions. I tried to use parts of the cloudfunction setting up paypal guide but didn't get it to work yet. I'm new to cloud functions and node.js so i have a hard time getting it done. I am using hard coded payment properties for testing purposes. I am using a blaze subscribtion to be able to do requests to non-Google services The code i have so far:
const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
Mollie = require("mollie-api-node");
mollie = new Mollie.API.Client;
mollie.setApiKey("test_GhQyK7Gkkkkkk**********");
querystring = require("querystring");
fs = require("fs");
exports.pay = functions.https.onRequest((req, res) => {
console.log('1. response', res)
mollie.payments.create({
amount: 10.00,
method: Mollie.API.Object.Method.IDEAL,
description: "My first iDEAL payment",
redirectUrl: "https://dummyse-afgerond",
webhookUrl: "https://us-c90e9d.cloudfunctions.net/process",
testmode: true
}, (payment)=> {
if (payment.error) {
console.error('errrr' , payment.error);
return response.end();
}
console.log('3. payment.getPaymentUrl()', payment.getPaymentUrl());
res.redirect(302, payment.getPaymentUrl());
});
});
exports.process = functions.https.onRequest((req, res) => {
let _this = this;
this.body = "";
req.on("data", (data)=> {
console.log('_this.body += data', _this.body += data)
return _this.body += data;
});
req.on("end", ()=> {
console.log('hier dan?')
let mollie, _ref;
_this.body = querystring.parse(_this.body);
if (!((_ref = _this.body) !== null ? _ref.id : void 0)) {
console.log('res.end()', res.end())
return res.end();
}
})
mollie.payments.get(
_this.body.id
, (payment) => {
if (payment.error) {
console.error('3a. err', payment.error);
return response.end();
}
console.log('4a. payment', payment);
console.log('5a. payment.isPaid()', payment.isPaid());
if (payment.isPaid()) {
/*
At this point you'd probably want to start the process of delivering the
product to the customer.
*/
console.log('6a. payment is payed!!!!!!!!!!')
} else if (!payment.isOpen()) {
/*
The payment isn't paid and isn't open anymore. We can assume it was
aborted.
*/
console.log('6a. payment is aborted!!!!!!!!!!')
}
res.end();
});
});
this is mollies api guide:
https://github.com/mollie/mollie-api-node
this is paypal cloud function guide:
https://github.com/firebase/functions-samples/tree/master/paypal
UPDATE:
I updated the code. The error i get now is that all properties of the payment variable are undefined in the procces function (webhook). and the payment.isPaid() function says false while it should say true.

Answer 1

I did the same when I first tried to get mollie working in firebase cloud functions, this:
let _this = this;
this.body = "";
req.on("data", (data)=> {
console.log('_this.body += data', _this.body += data)
return _this.body += data;
});
req.on("end", ()=> {
console.log('hier dan?')
let mollie, _ref;
_this.body = querystring.parse(_this.body);
if (!((_ref = _this.body) !== null ? _ref.id : void 0)) {
console.log('res.end()', res.end())
return res.end();
}
})
is not necessary.
my webhook endpoint is much simpler, directly using the request & response that functions provides:
exports.paymentsWebhook = functions.https.onRequest((request, response) => {
// ...
console.log("request.body: ", request.body);
console.log("request.query: ", request.query);
mollie.payments.get(request.body.id, function (payment) {
console.log("payment", payment);
if (payment.error) {
console.error('payment error: ', payment.error);
response.end();
}
//checking/processing the payment goes here...
response.end();
});
});