INSTALL TO RASPBERRY PI ZERO 2W (Debian 11)

Tested on Debian 11

• OS: Raspbian GNU/Linux 11 (bullseye) armv7l
• Host: Raspberry Pi Zero 2 W Rev 1.0
• Kernel: 5.15.32-v7+
• CPU: BCM2835 (4) @ 1.000GHz

Requirements

• NVM
• NODE.JS >= 16.17.1

Install and build project

Install dependencies

yarn install --no-lockfile

CRONTAB

Find out the location of the binaries

which node && which sqlite3

crontab -e

Add the following lines to the end:

@reboot sleep 30 && /home/<$USER>/.nvm/versions/node/v16.17.1/bin/node /home/<$USER>/www/weather-express-arduino/app.js < /dev/null & // not recommended
0 */6 * * * /usr/bin/sqlite3 /home/<$USER>/<DB_NAME>.sqlite3 .dump > /home/<$USER>/<DB_NAME>_dump.sql
// or
0 */6 * * * /usr/bin/sqlite3 /home/<$USER>/www/weather-express-arduino/<DB_NAME>.sqlite3 .dump > /home/<$USER>/<DB_NAME>_dump.sql

• "@reboot sleep 30" // 30 seconds after the system starts, run the project
• "0 */6 * * *" - // Create a database backup every 6 hours

Systemd service (Recommended)

[Unit]
Description=Weather Application Service
After=network.target

[Service]
WorkingDirectory=/home/<$USER>/www/weather-express-arduino
ExecStart=/home/<$USER>/.nvm/versions/node/v16.17.1/bin/node app.js
Restart=on-failure
User=<$USER>
Environment=PORT=3000

[Install]
WantedBy=multi-user.target

NVM install

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.1/install.sh | bash
nvm install 16.17.1
node --version
nvm alias default 16
npm i -g yarn sequelize-cli // Required to install migrations

Additional dependencies

To perform database backups

sudo apt install make cmake gcc sqlite3

NGINX configuration

If you plan to run other node.js applications using NGINX. Then for such applications, there will be approximately the following configuration:

server {
  listen 80;
  server_name example.test www.example.test;
  root /var/www/your_project;

  location / {
    try_files $uri @express;
  }

  location @express {
    proxy_pass http://localhost:3000;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
  }
}

If you plan to open the application page on the local network, then you must specify the "*.test" domain zone, otherwise browsers will be forced to redirect from the "http" protocol to "https". The known methods of bypass checked by me - do not work.

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P.S.: When run via "crontab", the database is created in the user's home folder