npm installation modules on parse cloud code

[dhei...@umich.edu]

Hello. I am trying to run a javascript file that uses requires a node.js module installation. Is it possible to run npm install on the parse cloud code?

[Davi Macêdo]

Not yet. But it will be possible soon. What is the module you need? We have the following already installed to all apps running on back4app:

http://docs.back4app.com/docs/faq-parse-back4app/which-cloud-modules-are-available-on-back4app/

If you need any additional one, reach us on web-site chat and we will install for you.

Best!

[Davi Macêdo]

For Braintree module, for instance. is it already installed. Just require('baintree') and use following its own docs:

https://github.com/braintree/braintree_node

Basically, you have to create cloud functions (https://parse.com/docs/cloudcode/guide#cloud-code-cloud-functions) to use braintree npm module (https://developers.braintreepayments.com/start/hello-server/node).

Please, see an example here:

https://gist.github.com/davimacedo/d21ab5aa0d0823956a2992e5eb2df673

We also have other topic in developers group you can follow:

https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!searchin/back4app/braintree/back4app/pKtkZD0rEdg/GPFM1JPfFQAJ

[cha...@back4app.com]

Hi!

Now, it's possible to install a npm module on the cloud code! :D

Please, take a look in this link, it will help you about it.

Regards,

Charles Ramos

- 

[Tim Loewel]

Does this really work?

We are using some custom packages and get in our log:

Error: Cannot find module 'archiver'
    at Function.Module._resolveFilename (module.js:325:15)
    at Function.Module._load (module.js:276:25)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)

the package.json in cloud folder:  

"dependencies": {
    "archiver": "^2.1.0",
    "async": "^2.6.0",
    "fs": "^0.0.1-security",
    "path": "^0.12.7",
    "request-promise-native": "^1.0.5",
    "rimraf": "^2.6.2"
  }
}

 So it seems as if the package was not installed..

I would be grateful for advice..

thanks, Tim

[cha...@back4app.com]

Hi Tim,

Could you please send us your app ID to check it?

You can email us for that, our email address is comm...@back4app.com.

Regards,

Charles Ramos

[Tim Loewel]

Hi

thanks for your help
app id:
RZxPuQJo7SlrnTdSJTzw9bhLn1spbX6KXK8pFHP3

It works after a while after several restarts or uploading the package.json via cloud codevweb interface.

but of course that is not reliable enough for a production server.

Best, Tim

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[cha...@back4app.com]

Hi Tim,

Okay, good to know it's working now.

If you face this issue again, please, let us know and we will take a look on it. (:

Regards,

Charles Ramos

To unsubscribe from this group and all its topics, send an email to back4app+u...@googlegroups.com.

[Tim Loewel]

that "it is working" is not what I meant.

Whenever we do a deploy the website is down.
Then I frenetically do a redeploy after the other and restart the app and upload the package.json
and add in a few hopes and prayers..
..until the website is up again.

This works now, where we have very few users. But once we are scaling up this is unacceptable.

Did you look at the logs? I had the impression that there was a dead npm process in your system that
locked out our install.

Is there anything I can do to help you find the problem?

I think I will do an install today. I will try to contact support via the webchat, if the problem
is still there.
Or do you have a slack or skype where I could reach you, so we can debug it together?

Thanks, Tim

[Tim Loewel]

Suddenly our webapp is not working any more. A package in package.json is suddenly missing.
No one on my team remembers restarting the server or deploying.

Error: Cannot find module 'archiver'
    at Function.Module._resolveFilename (module.js:325:15)
    at Function.Module._load (module.js:276:25)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)

    at Object.<anonymous> (/usr/src/app/data/cloud/routers/downloadRouter.js:10:16)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)

    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)

My guess is, that b4a moved our code to a different server and restarted it automatically.
Which is fine by me.
But as a restart does not guarantee the package.json to be installed suddenly a package
that our code relies on does not exist any more.

We are now redeploying and restarting the app and reuploading the package.json
but the server does not seem to want to install the packages.

This is really no good situation. Before it was just that we had a one hour outage with every
deploy.  But now it seems as if the server could be down any moment by itself.

This is really unbearable.

Please help.

Best, Tim

[matrpe...@gmail.com]

I have the same issue and this has happened multiple times before. This problem is literally causing me right now to lose a lot of money. This should not happen for a production enviroment.

Fri Mar 16 2018 02:19:19 GMT+0000 (UTC)
Cloud Code not loaded:
 Error: Cannot find module 'moment-range'

    at Function.Module._resolveFilename (module.js:325:15)
    at Function.Module._load (module.js:276:25)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)

    at Object.<anonymous> (/usr/src/app/data/cloud/Utils/horarios_back.js:7:19)

    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Module.require (module.js:353:17)

Em segunda-feira, 25 de julho de 2016 13:31:48 UTC-3, dhei...@umich.edu escreveu:

[Lucas Verra]

same experience , we opened #5233 ticket on that matter. 

Some library we've always used is now "cannot find module". Weird and unreliable if you ask me. 

[Lucas Verra]

for next who has issue, support has responded 

Hi Lucas, 
thanks for reaching out!
At the moment, can you please remove the modules parse and parse-server from your package.json?
Then, upload your changes using b4a deploy.
After this change, please let us know =D