Go + HTMX + Web3

A very simple example HTMX with Web3 with:

• Go HTML templating engine.
• HTMX solution for SSR.
• Ethereum as authenticator.
• (+CSRF protection measures for all requests).
• SQLite3 with sqlc and golang-migrate.

Motivation

For the hype.

Usage

1. Set the necessary parameters or environment variables:

   ## .env.local
   ## A 32 bytes hex secret ()
   CSRF_SECRET=0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef
   ## A hex ECDSA private key in ethereum format (32 bytes)
   PRIVATE_KEY=0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef
   ## A unique string secret
   JWT_SECRET=secret
   ## PUBLIC_URL will be used as redirect url which is ${PUBLIC_URL}/callback
   PUBLIC_URL=http://localhost:3000
   DB_PATH=/data/db.sqlite3
   

2. Run the binary:

   ./auth-web3-htmx
   

Help:

NAME:
   auth-web3-htmx - Demo of Auth and HTMX.

USAGE:
   auth-web3-htmx [global options] command [command options] [arguments...]

COMMANDS:
   help, h  Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --csrf.secret value  A 32 bytes hex secret [$CSRF_SECRET]
   --jwt.secret value   A unique string secret [$JWT_SECRET]
   --private-key value  A ecdsa private key in Hex. [$PRIVATE_KEY]
   --db.path value      SQLite3 database file path. (default: "./db.sqlite3") [$DB_PATH]
   --help, -h           show help
   --version, -v        print the version

Application Flow

• A home page:
  • Show login button if not logged in.
  • Else, show a welcome with routing.
• A protected counter page.