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Update README with installation/usage instructions

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Daniel Sockwell 2019-05-10 07:17:21 -04:00
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# RageQuit
# Mastodon Streaming Server
A WIP blazingly fast drop-in replacement for the Mastodon streaming api server.
## Installation
Installing the WIP version requires the Rust toolchain (the released version will be available as a pre-compiled binary). To install, clone this repository and run `cargo build` (to build the server) `cargo run` (to both build and run the server), or `cargo build --release` (to build the server with release optimizations).
## Connection to Mastodon
The streaming server expects to connect to a running development version of Mastodon. Specifically, it needs to connect to both the Postgres database (to authenticate users) and to the Redis database. You should run Mastodon in whatever way you normally do and configure the streaming server to connect to the appropriate databases.
## Configuring
You may edit the (currently limited) configuration variables in the `.env` file. Note that, by default, this server is configured to run on port 4000. This allows for easy testing with the development version of Mastodon (which, by default, is configured to communicate with a streaming server running on `localhost:4000`). However, it also conflicts with the current/Node.js version of Mastodon's streaming server, which runs on the same port. Thus, to test this server, you should disable the other streaming server or move it to a non-conflicting port.
## Documentation
Build documentation with `cargo doc --open`, which will build the Markdown docs and open them in your browser. Please consult those docs for a description of the code structure/organization.
## Running
As noted above, you can run the server with `cargo run`. Alternatively, if you built the sever using `cargo build` or `cargo build --release`, you can run the executable produced in the `target/build/debug` folder or the `target/build/release` folder.
## Unit and (limited) integration tests
You can run basic unit test of the public Server Sent Event endpoints with `cargo test`. You can run integration tests of the authenticated SSE endpoints (which require a Postgres connection) with `cargo test -- --ignored`.
## Manual testing
Once the streaming server is running, you can also test it manually. You can test it using a browser connected to the relevant Mastodon development server. Or you can test the SSE endpoints with `curl`, PostMan, or any other HTTP client. Similarly, you can test the WebSocket endpoints with `websocat` or any other WebSocket client.
## Memory/CPU usage
Note that memory usage is higher when running the development version of the streaming server (the one generated with `cargo run` or `cargo build`). If you are interested in measuring RAM or CPU usage, you should likely run `cargo build --release` and test the release version of the executable.