Full stack MERN tutorial problem

1

Given that Cloud9 is not free and I needed a full stack tutorial that uses the free mlab database so…

Anyone else had any success with this full stack MERN tutorial? I am led to believe that once I setup the Mongoose connection and built the API I would be able to post user comments to my mlab DB. Except no data is pulling through and I get events exception errors when running the npm run start-dev script explained in the tutorial.

[Source: https://medium.com/@bryantheastronaut/react-getting-started-the-mern-stack-tutorial-feat-es6-de1a2886be50]

2

Care to share those errors?

3

Sure here we is console output :

$ npm run dev

> mern@0.1.0 dev /Users/jamespickering/Sites/mern
> nf start -p 3002

[WARN] No ENV file found
18:39:17 api.1   |  [nodemon] 1.17.2
18:39:17 api.1   |  [nodemon] to restart at any time, enter `rs`
18:39:17 api.1   |  [nodemon] watching: *.*
18:39:17 api.1   |  [nodemon] starting `node server.js`
18:39:17 api.1   |  events.js:182
18:39:17 api.1   |        throw er; // Unhandled 'error' event
18:39:17 api.1   |        ^
18:39:17 api.1   |  Error: listen EADDRINUSE :::3001
18:39:17 api.1   |      at Object._errnoException (util.js:1019:11)
18:39:17 api.1   |      at _exceptionWithHostPort (util.js:1041:20)
18:39:17 api.1   |      at Server.setupListenHandle [as _listen2] (net.js:1344:14)
18:39:17 api.1   |      at listenInCluster (net.js:1385:12)
18:39:17 api.1   |      at Server.listen (net.js:1469:7)
18:39:17 api.1   |      at Function.listen (/Users/jamespickering/Sites/mern/node_modules/express/lib/application.js:618:24)
18:39:17 api.1   |      at Object.<anonymous> (/Users/jamespickering/Sites/mern/server.js:80:5)
18:39:17 api.1   |      at Module._compile (module.js:624:30)
18:39:17 api.1   |      at Object.Module._extensions..js (module.js:635:10)
18:39:17 api.1   |      at Module.load (module.js:545:32)
18:39:17 api.1   |      at tryModuleLoad (module.js:508:12)
18:39:17 api.1   |      at Function.Module._load (module.js:500:3)
18:39:17 api.1   |      at Function.Module.runMain (module.js:665:10)
18:39:17 api.1   |      at startup (bootstrap_node.js:187:16)
18:39:17 api.1   |      at bootstrap_node.js:607:3
18:39:17 api.1   |  [nodemon] app crashed - waiting for file changes before starting...
4

Does this help?

5

I don’t understand what the Stack overflow thread is talking about or how it solves my issue.

6

I saw this error yesterday on a side issue. This means you are trying to run the server twice on the same web address/port. Stop the existing server first.

7

Restarting MacOS solved the kill process issue but not my main problem of no data pulling through from mlab.

8

I’ve not had any problems connecting to mlab. Can you give more detail?
I don’t really want to wade through that tutorial.
I would compare your code to the GitHub repo. I did not see a link to it but another user has done it: https://github.com/lpstandard/comment_box/

9

Thanks I took a look at that github repo. I missed some further code amends the blogger added after he explains how to get some results into Postman.

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