Azure and node js __dirname - node.js

Probably it is not specifically related to webpack/memory-fs, but I am getting the RangeError: Maximum call stack size exceeded error (see below for a call stack).
I have found out, that __dirname on Azure (webapp) returns \\100.78.172.13\volume-7-default\8f5ecde749dace2bb57a\4e07195f015b45ce8e9ba255dc901988\site\repository\Source\Website\Content\app\node_modules\webpack\node_modules\memory-fs\lib\normalize.js in my situation, while process.cwd() returns D:\home\site\repository\Source\Website\Content\app.
Is anything can be done from my side to configure node js to return D:\... instead of \\.. ?
Gist
How to reproduce:
Clone the https://github.com/intellismiths/webapp1 repository.
Create new Azure Web App (default settings).
Configure deployment source to use GitHub.
Click Sync. It will take 10+ minutes to complete and it will show that the deployment was successful.
Go to Application settings in Azure and change WEBSITE_NODE_DEFAULT_VERSION to 6.2.2
Go to kudu page and open powershell console.
Execute npm cache clean
Check node version by executing node -v. It should be v6.2.2
On Azure, navigate to D:\home\site\respository\src\WebApp1
Execute npm run build
In console, you should see a lot of errors which indicates that modules can not be resolved.
OPTIONAL. Test npm run build on your local machine - it should produce wwwroot/app.js without errors.
Update webpack.config.js to include context: __dirname to fix previous errors.
Execute npm run build
In console, you should see the "RangeError: Maximum call stack size exceeded" error.
Update 1
I only tried to set 6.2.2 runtime after adding the second package.json, so the project structure is not the simplest possible. Maybe just setting node to 6.2.2 breaks the build.

I could reproduce your issue following your steps. I found the key point was setting the WEBSITE_NODE_DEFAULT_VERSION to 6.2.2. And I found the webpack task worked fine if the WEBSITE_NODE_DEFAULT_VERSION was under 6.
Please downgrade the setting WEBSITE_NODE_DEFAULT_VERSION to the version under 6 e.g. 5.9.0 if your node.js modules do not need such high version.
And according the package.json of angular2 athttps://github.com/angular/angular/blob/master/package.json, it seems that the angular2 repository requires the node.js version between 5.4 and 6.
Additionally, the web application's root directory on Azure Web Apps is D:\home\site\wwwroot. So if you want to build your frontend project on Azure Web Apps, you need to locate to D:\home\site\wwwroot\wwwroot\mobile-web-app then run npm run build.

It's been fixed in master and it's proposed to be included in v6.4.0.
See: https://github.com/nodejs/node/issues/7175#issuecomment-239824532 and https://github.com/nodejs/node/pull/8070

After a long day of research, trial-and-error and various experimentation, I've found an acceptable workaround if you're not willing to downgrade to Node 5.*:
Downgrade to Node 6.1.0
Make sure to install webpack globally (with npm install -g webpack).
Just using 6.1.0 gets around the "maximum call stack size exceeded" error, but instead gave me a lot of resolve failures when running webpack from node_modules (using ./node_modules/.bin/webpack). Installing webpack globally finally got me past that.
If I understand it correctly, this whole issue with __dirname in Node >= 6.2 resolving to the UNC folder path instead of the mounted path is going to be fixed, there's an active discussion here.

I had the same issue.
Fixed it with UPGRADING npm not DOWNGRADING.
Bug is fixed in the npm versions newer than 6.5.
https://github.com/aumanjoa/chronas-community/blob/master/package.json#L48

I believe that your __dirname shows your persistant drive where the data is stored, while .cwd gives current directory from where node ran. This is because Azure runs from the Drive but files are stored at the persistent drive.
In your Gruntfile.js add
module.exports = function (grunt) {
grunt.file.setBase(__dirname);
// Code omitted
}
Refer: link

Related

Cloud Functions Puppeteer cannot open browser

My setup in GCF:
install npm install --save puppeteer from project cloud shell
edit package.json like so:
{ "dependencies": { "puppeteer": "^19.2.2" } }
paste code from medium.com into index.js:
https://gist.githubusercontent.com/Alezco/b9b7ce4ec7ee7f208818e395225fcbbe/raw/8554acc8b311a10e272f5d1b98dce3400945bb00/index.js
deploy with 2 GB RAM, 0-3 instances, max 500s timeout
I get these errors after building or opening the URL:
Internal Server Error
Could not find Chromium (rev. 1056772). This can occur if either 1. you did not perform an installation before running the script (e.g. npm install) or 2. your cache path is incorrectly configured (which is: /workspace/.cache/puppeteer). For (2), check out our guide on configuring puppeteer at https://pptr.dev/guides/configuration.
When I run npm list both webdriver and puppeteer are installed. I suspect there is an issue this Path but I cannot figure out where it should lead.
I could then provide puppeteer.launch() with argument executablePath which might solve the problem.
I tried reinstalling puppeteer and changing configuration. No luck.
In addition to adding a .puppeteerrc.cjs per Kristofer's answer, I added a postinstall script in my package.json:
"scripts": {
...
"postinstall": "node node_modules/puppeteer/install.js"
},
This fixed the problem and I was able to deploy my Google Cloud Function. This is a temporary fix until issue #9128 is fixed.
I had the exact same issue and it seems to be related to this https://github.com/puppeteer/puppeteer/issues/9128
I'm using Firebase and don't have complete control over the build process when I deploy my functions but I still have access to the build logs. From the issue above, I realized I needed to handle the cache directory and the NPM version for this to work.
As far as I can tell the problem is that the build step installs the Chrome browser needed for Puppeteer in a cache directory outside of the final image that is used for the actuall function. In that context the error message makes more sence, it can't find the browser therefor it doesn't work.
I was using Node 14 in my cloud functions which used NPM 6.14.17 in the build steps. According to the issue you need to use NPM > 7 so I upgraded my function to use Node 16.
Then I added the .puppeteerrc.cjs from https://pptr.dev/guides/configuration/#examples when testing that locally it will add a .cache directory where the Chrome installation is. This has to be ignored when deploying the cloud function or the deplot will fail due to size.
In the firebase.json add:
"functions": {
"ignore": [
".cache"
]
},
The last step is pretty specific for Firebase and I'm not sure how this applies to your build steps etc. But this solved my issue that had the exact same error messages as you had. So double check the following:
NPM version in the build step, needs to beat least v.7 - Node 16 should do this.
Cache directory specified in the .puppeteerrc.cjs
It also looks like your using an old Puppeteer version, I used 19.3
I got this same (very missleading) error in my Puppeteer project which I run in Google Cloud Function. The issue was that Function was finishing (exiting) before the async Puppeteer script was finished.
Resolved this issue by changing the "await browser.close();" to a Promise and creating the response message in promise.then().
... only to hit next problem. My script is not downloading the csv file as expected. Works locally though...

Node package dependencies on IBM Cloud Foundry - require/module is not defined (Package not loading)

I am working on an application via the toolchain tool on IBM Cloud and editing the code via the Eclipse Orion IDE. As I am not accessing this through my local cli, my understanding is that in order to so call npm install {package}, I would just need to include the package in the package.json file under dependencies and require it in my app. However, when I load the application, I get the require is not defined indicating that the package has not been installed. Moreover, the require() is being used in the app.js file with the application being launched but not from files in my public directory.
After playing around further, it seems it might have to do with the way the directory tree is being traced as the error is only thrown in subdirectories. For example, require('express') works in app.js which is in the main directory ./ but fails when it is called in test.js in ./subdirectory/test.js. I feel like I'm missing something painfully simple like configuration of endpoint or something.
I've been searching around but I can't seem to find how to get the packages loaded, preferably without using the cli. Appreciate any pointers. Thanks!
Update: After playing around further, I am also getting module is not defined error when trying to require from another file in the same directory. For example module.exports = 'str' returns this error. While trying to require('./file') returns the require is not defined. It might have to do with how node is wrapping the functions?
Update 2: Tried "start": "npm install && node app.js" in package.json but no luck. Adding a build stage which calls npm install before deployment also does not work
Update 3: After adding npm install build stage, I am able to see that the dependencies have been successfully built via the logs. However, the require is not defined error still persists.
Update 4: Trying npm install from my CLI doesn't work as well even though all packages and dependencies are present
Update 5: Running cf restage or configuring cache via cacheDirectories does not work as well
Opened a related question regarding deployment here
Found out my confusion was caused due to me not realizing that require() cannot be used on the client side unless via tools such as Browserify.

NodeJS Windows 10 geolocation module throws error in electron when the app starts

I was using module "#nodert-win10-rs4/windows.devices.geolocation" in an electronjs app which was working fine. Later I installed a node module and rebuilt all the modules. Now it stopped working and throwing error. The previous version of that module ( "#nodert-win10-rs4/windows.devices.geolocation") was 1.0.0, Thus I reinstalled it, new version of the module is "0.3.2" but still error. Even i tried this in fresh new electron quick start app and I see the same error. I'm adding here the screenshot of the package.json and the error. (FYI - The module is installed and rebuilt without any error although it has some warning, I've added a screenshot of the installation/built too). Really appreciate any help/suggestions.
I saw other posts with similar errors but I already took the actions mentioned there.
Thanks
Musa
N.B - Cross posted here
I ran into the same issue and here is how I resolved it.
Copy the windows.devices.geolocation into your electron app folder and update the dependencies to point to the location of the folder. You need to this line added to your package.json of your Electron App
"windows.devices.geolocation": "file:windows.devices.geolocation"
Navigate to the newly copied folder and build your NodeRT "addon" to match your Electron version. See this post here NodeRT with Electron
node-gyp rebuild --target=4.0.1 --arch=x64 --dist-url=https://atom.io/download/atom-shell
Run npm install at the the top level Electron app.

Express app with Node-sass on Azure App Service

I have a basic node web application using express that has a dependency on the node-sass library.
This is being built on a Win64 server, so during the npm install part of the build it is downloading the x64 version of the binding binary due to the current environment.
When its deployed to Azure App Service it throws a runtime error due to incompatability with the node-sass binding binary, as node runs 32bit in Azure App Service...
Error: Missing binding
D:\home\site\wwwroot\node_modules\node-sass\vendor\win32-ia32-48\binding.node
Node Sass could not find a binding for your current environment:
Windows 32-bit with Node.js 6.x
Found bindings for the following environments:
- Windows 64-bit with Node.js 6.x
When i explicitly check in the 32bit binding and re-deploy i sometimes get a 502 gateway error...
502 - Web server received an invalid response while acting as a
gateway or proxy server. There is a problem with the page you are
looking for, and it cannot be displayed. When the Web server (while
acting as a gateway or proxy) contacted the upstream content server,
it received an invalid response from the content server.
and other times i simply get a 500, but it no longer writes the error to the log.
The app depends on node-sass-middleware package version 0.11 explicitly, which depends on node-sass 4.3.0.
Without any error logs i am at a dead end. Have you come across this issue before, and if so, how did you resolve it?
I leveraged Node-Sass Example App to have quick test, used local git to deploy it sample project to Azure Web Apps, which reproduced your issue.
Via the deployment log:
remote: Selected node.js version 7.4.0. Use package.json file to choose a different version.
remote: Selected npm version 4.0.5
And according the similar error message:
Found bindings for the following environments: - Windows 64-bit with Node.js 6.x
I specified the node.js version in package.json to:
"engines": {
"node": "= 6.9.1",
"npm": "> 3"
}
Then redeploy it to Azure via local git, and the sample works fine.
For your further 500 error, you can try to leverage App Service Editor to check the output of your website.
Enter the App Service Editor from Azure portal, switch to output section by clicking the show output button, then click run to start the application.
We eventually resolved this by swapping out node-sass-middleware for gulp-sass, and also adding an npm rebuild step for node-sass. The key difference here is that the css is now rendered during the build process via gulp. Running npm rebuild node-sass first would invoke the binding download to the build server (if necessary), and then a separate task would invoke a gulp task to render the css.
The remainder of our problem was due to the fact that the web.config specified app.js as the entry point, but express4 uses the bin/www file, and simply references app.js. The problem with bin/www being the entry point is that iisnode now uses bin as the working directory, which caused issues with root relative references.
Rather than waste any more time trying to figure out if we could configure a different working directory, we simply moved bin/www to ./server.js and changed the web.config to point to server.js
The express app now runs as expected on azure websites.

Cannot deploy node.js app on GAE

I'm having trouble deploying my node.js app to GAE.
It's a simple app that connects to my Firebase and updates a value. Just to get started.
Whenever I try to deploy the app it fails. Runs fine locally.
I deleted my project and started a fresh one, and deployed the default 'hello-world' app after downloading the zip and it worked fine.
I installed firebase on the project via the cloud shell.
Added
var Firebase = require("firebase");
to the app.js file and it no longer deploys.
I am new to GAE and cannot understand why it won't deploy. I feel like if i'm having trouble just including firebase in an app, I'm in for a tough time.
This is the error I get. The only think I have added to the original hello-world app is the firebase dependency. I remove that and it deploys fine again.
Updating service [default]...failed.
ERROR: (gcloud.preview.app.deploy) Error Response: [13] Timed out when starting VMs. It's possible that the application code is unhealthy. (0/2 ready, 2 still deploying).
Any help would be greatly appreciated.
I fixed the issue by installing the firebase npm on my local machine again. I noticed when I was installing it on the server (even with --save) it wasn't updating the package.json file for some reason and it hadn't updated it locally either. But it still ran on my local machine without the package mentioning a firebase dependency. Not sure why that would be the case.
It seems to be working now.
Before you can require the "firebase" package you need to install it.
To install the latest version of the package using the command line:
Navigate to the project root directory
Run npm install --save firebase
You will now have Firebase, and all the packages that it depends on, installed in your app.
The --save argument makes the command save the package installation configuration to the package.json file, so that the package is installed when you run the npm install command to set up the project on another computer, or when your app is deployed to Google App Engine.
You can check the logs for error. To check it goto your project at google console (console.cloud.google.com) and then Menu-> Logs.
Usually this error comes when app couldn't start while deploying. 1st check if the app local environment. If it is working fine then check if any environment variable is required to set and not set properly on cloud.

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