send grid & parse 502 Bad Gateway with nginx - nginx

Question

I am trying to migrate my parse application over to digital ocean and followed this guide :
https://www.digitalocean.com/community/tutorials/how-to-migrate-a-parse-app-to-parse-server-on-ubuntu-14-04
Everything works perfectly fine until I get to the very end Test Parse Server ( Executing Example Cloud Code ) section
I tested the cloud code for the sample cloud code that was provided in the tutorial :
Parse.Cloud.define('hello', function(req, res) {
res.success('Hi');
});
so I got a Hi back in my browser as well as in postman.
See image here : https://cloudup.com/cH2dbBx1KTo

Then I test the function that uses sendgrid's service to send emails (http://blog.parse.com/announcements/introducing-the-sendgrid-cloud-module/), my cloud code file looks like this :
see image : https://cloudup.com/cD6MNRP3Tft
and now I try to run my post request from postman and I get an error even on my hello function that was working before
See image : https://cloudup.com/cIkwJ6552_5
So I look around and figure out that its an issue with my sendgrid import
var sendgrid = require("sendgrid");
sendgrid.initialize(“xxxxxx”, “xxxxx.”);
in these lines.
does anyone have any experience with digital ocean cloud code and send grid emailing service please help me out I will be grateful as this is the last step left and I will be done with my migration :)
cheers
Tanzeel

Answer 1

you have to specify server URL in parse config file. It is required and could be the reason why you cant run cloud code.
"PARSE_SERVER_URL": "http://localhost:1337/parse"
The url has be the same what you are using. There is also error in Nginx config in that tutorial, I explained it here https://serverfault.com/questions/765627/cannot-post-get-over-ssl/766428#766428

Answer 2

So I looked up at pm2 and to see real-time logs the command is
pm2 logs
at first when I ran the command I saw some errors, maybe they were there from before :
Then I tried the hello cloud function from postman app to test for its output in pm2 logs and I got the following :
Next I try to run my sendMail sendgrid function and I find out the the api-key I had used in my sendgrid function was throwing an error
ReferenceError: XXXXXXXXXXXX is not defined
So I went back to my cloud code and used quotes around my api-key parameter and passed it as a string in my send grid initialize function. Then I retry and get
[Error: The provided authorization grant is invalid, expired, or revoked]
So I went back to my sendgrid account and made sure that the api-key I was using was the correct one and it seemed to be just fine. I tested again and got the same error again so I decided to generate a new api-key just in case.
So I realize that I was not using the api-key but instead API KEY ID :
When we create a new api-key on sendgrid they give us the actual api key once and they ask us to store it in some secure place :
We can only display the key above one time. Please store it somewhere safe because as soon as you navigate away from this page, we will not be able to retrieve or restore this generated token.
So after I used an actual api-key I was able to send emails 😃
But one small issue still remains and I am not sure if its because of postman that I am using to run cloud code or something in the parse server or nginx that is still returning me with a 502 Bad Gateway as a response
But when I look at the logs for my parse server I do see a
parse-wrapper-0 { message: 'success' }
but it never gets back to me in my postman and instead I am getting a 502 error not sure why but the emails are being sent succesfully :)