Rust implementation of fatcat API server. Commands include: - `fatcatd`: the API server itself - `fatcat-auth`: privileged command to manage authentication keys, tokens, and accounts. Useful to generate admin accounts, new signing keys, etc. - `fatcat-export`: high-speed JSON export tool, which talks directly to the database (instead of going through the API). The `fatcat-openapi` crate is generated from the openapi/swagger spec and contains Rust models, response types, and endpoint definitions (but not implementations). The SQL database schema (and migrations) are under `./migrations/`. ## Development You need the following dependencies installed locally to build, run tests, and do development work: - rust stable, 2018 edition, 1.36+ (eg, via "rustup", includes cargo tool) - diesel (`cargo install diesel_cli`) - postgres (compatible with 9.6+; we run 11.x in production) - postgres libs (debian/ubuntu: `libsqlite3-dev libpq-dev`) - libsodium library and development headers (debian/ubuntu: `libsodium-dev`) - OpenSSL We need to create a new `fatcat` postgres user and database to run tests and develop with. On debian/ubuntu, a UNIX account named `postgres` is automatically created with control over the database, so we'll run setup commands from that user. To create the database account: sudo su - postgres # this command creates a PostgreSQL user, not a UNIX/system user createuser -s fatcat -P # switch back to your regular system user exit Copy `./example.env` to `./.env` and update the `DATABASE_URL` and `TEST_DATABASE_URL` lines with the password you set above. As your regular user, use `diesel` to create and initialize the `fatcat` database (`diesel` and the fatcat tools will automatically use postgresql credentials from the `.env` file) as well as the `fatcat_test` database for automated tests: source .env diesel database reset DATABASE_URL=$TEST_DATABASE_URL diesel database reset Build and run the API server: cargo run --bin fatcatd Run tests: cargo test -- --test-threads 1 Note that most "integration" level tests are written in python and run by `pytest`; see `../python/README.md`. See `HACKING` for some more advanced tips and commands. ## Configuration All configuration goes through environment variables, the notable ones being: - `DATABASE_URL`: postgres connection details (username, password, host, and database) - `TEST_DATABASE_URL`: used when running `cargo test` - `AUTH_LOCATION`: the domain authentication tokens should be valid over - `AUTH_KEY_IDENT`: a unique name for the primary auth signing key (used to find the correct key after key rotation has occurred) - `AUTH_SECRET_KEY`: base64-encoded secret key used to both sign and verify authentication tokens (symmetric encryption) - `AUTH_ALT_KEYS`: additional ident/key pairs that can be used to verify tokens (to enable key rotation). Syntax is like `:,:key2,...`. To setup authentication with a new secret authentication key, run: cargo run --bin fatcat-auth create-key then copy the last line as `AUTH_SECRET_KEY` in `.env`, and update `AUTH_KEY_IDENT` with a unique name for this new key (eg, including the date).