I need to add nodejs app to use barcode API:
I can run it on port 3030 but I want it to be integrated to the framework while start the erpnext by default .
What the steps are needed to that?
Mohammed Redha
Any help please?
@Mohammed_Redha i dont know how its done but this would be the best example i have seen. GitHub - techmaxsolucoes/bpmn_editor: BPMN Editor for Frappe
Thanks for your reply but this is not what I am looking for.
I want to run nodejs server to consume API call.
How to start nodejs server when bench start?
in development add line to Procfile
custom_app: /usr/bin/node apps/custom_app/custom_node.js
or,
In production add following to supervisor.conf
[program:frappe-bench-custom-app]
command=/usr/bin/node /home/revant/frappe-bench/apps/custom_app/custom_node.js
priority=4
autostart=true
autorestart=true
stdout_logfile=/home/revant/frappe-bench/logs/custom-app.log
stderr_logfile=/home/revant/frappe-bench/logs/custom-app.error.log
user=revant
directory=/home/revant/frappe-bench
[group:frappe-bench-extras]
programs=frappe-bench-custom-app
Refer this gist
Please share if there are any better ways to do this.
6 Likes
Hi @Mohammed_Redha,
Sure, I’ll check and get back to you if i find any issue or find better way.
Thanks.
I have just been experimenting with this and can confirm that is works!
It took a while to pick through the various connections to fully understand what goes on, so as a reminder to myself and to help anyone else trying to get started with this, I have annotated the gist (for development mode)…
I have not tried in production, so I’ve left that “as an exercise for the student”. 
Some things to notice:
-
the only linking information between the NGinx configuration and the NodeJs app is the port number
-
the only linking information between the NodeJs app and the Frappe configuration is the NodeJs entry-point file path specified in
Procfile -
the name you use in
Procfile, (which iscustom_appin this example), is the name that appears color coded in Frappe’s log files…
It seems as though changes you make to you NodeJs files can only be tested by killing your bench and then rerunning bench start the reloading the browser pages, a long slow pain in the ass. So, if you have a lot of coding and testing to do, it’s going to be better doing it in a separate auto-reloading NodeJs environment.
Update
Something else worth knowing – you can embed the NodeJs app within the directory hierarchy of a Frappe module/app.
So, if you do …
bench new-app library_management
… you’ll end up with:
erpdev@erpdev:~/frappe-bench$ tree -L 1 apps/library_management/
apps/library_management/
├── MANIFEST.in
├── README.md
├── library_management
├── library_management.egg-info
├── license.txt
├── requirements.txt
└── setup.py
3 directories, 5 files
erpdev@erpdev:~/frappe-bench$
Then you can do the following to start your NodeJs apps within it:
erpdev@erpdev:~$ pushd frappe-bench/apps/library_management/
~/frappe-bench/apps/library_management ~
erpdev@erpdev:~/frappe-bench/apps/library_management$ tree -L 1
.
├── MANIFEST.in
├── README.md
├── library_management
├── library_management.egg-info
├── license.txt
├── requirements.txt
└── setup.py
2 directories, 5 files
erpdev@erpdev:~/frappe-bench/apps/library_management$ mkdir -p services/isbn_service
erpdev@erpdev:~/frappe-bench/apps/library_management$ pushd services
~/frappe-bench/apps/library_management/services ~/frappe-bench/apps/library_management ~
erpdev@erpdev:~/frappe-bench/apps/library_management$ pushd isbn_service
~/frappe-bench/apps/library_management/services/isbn_service ~/frappe-bench/apps/library_management/services ~/frappe-bench/apps/library_management ~
erpdev@erpdev:~/frappe-bench/apps/library_management/services/isbn_service$ npm init
This utility will walk you through creating a package.json file.
:
:
About to write to /home/erpdev/frappe-bench/apps/library_management/services/isbn_service/package.json:
{
"name": "isbn_service",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC"
}
Is this OK? (yes) yes
erpdev@erpdev:~/frappe-bench/apps/library_management/services/isbn_service$ popd
~/frappe-bench/apps/library_management/services ~
erpdev@erpdev:~/frappe-bench/apps/library_management/services$ tree -L 2
.
└── isbn_service
└── package.json
1 directory, 1 file
In this case, because of the changed directory path and because of the main setting in package.json, your Profile would have to read:
:
:
isbn_service: /usr/bin/node apps/library_management/services/isbn_service/index.js
:
:
Update 2020/05/06:
Node apps typically need to load environment variables and other settings.
It’s worth noting that Procfile will launch any non-terminating script.
So you can do for example:
File apps/library_management/services/isbn_service/do_it.sh:
#!/usr/bin/env bash
#
export BASE_DIR=$(dirname "$(realpath $0)");
cd ${BASE_DIR};
npm run nodemon_start;
where npm can handle pre-launch setups of any complexity.
In which case your Procfile would contain instead:
:
:
isbn_service: apps/library_management/services/isbn_service/do_it.sh;
:
:
6 Likes
Now it is possible to customize default nginx configuration for containerized setup.
Hi @revant_one , thank you for keeping track of the issue. I manage to add nodejs App to frappe & bench in development environment.
But I am having trouble with adding nodejs App to k8s setup.
My assumption is that k8s setup does not use supervisor.conf. I can add another nodejs deployment and pod, but that need more config in the nginx-pod or ingress and I don’t think that is the scalable way.
Do you have any pointer in this matter ?
Best regards
add your deployment and related service. use nginx.config in nginx values to override default nginx config.
you can refer what is done for socketio
1 Like
