StreamPush - Relay

Backend RTMP relay component for StreamPush. Parses config files generated by the StreamPush frontend app and hosts an RTMP server to push those configs. I couldn't find an RTMP server that allowed for hot reloading of configs (see nginx-rtmp), so I made one in GoLang. Makes heavy use of the nareix/joy4 libraries.

Installation

You should be using the streampush frontend with this in the StreamPush Docker container. It can be run standalone - see the below instructions.

1. go get github.com/streampush/relay
2. Make a folder somewhere named configs
3. Drop some JSON formatted config files in the configs folder. See config-example.json for an example config file.
4. In the same directory where configs is, run relay
5. Relay will now be running on the default ports as defined in settings.go.

Usage

Relay contains a shell that's mainly used for debugging. If you're running relay standalone, it can be quite helpful. Type help for a list of commands.

API

There's also an HTTP JSON API available for retrieving statistics and other info. This is available at :8888 by default. You can change that in settings.go.

/api/reload/

Hot reloads the config files.

/api/stats/

Returns some statistics about configured streams. This includes inbound connection status, outbound connection status (per endpoint), and inbound bitrate. The stats object in each endpoint doesn't work - still haven't figured that one out yet.

{
    "145ddbd8-97fa-4e7f-acc7-c5211d6fcde0": {
    "id": "145ddbd8-97fa-4e7f-acc7-c5211d6fcde0",
    "name": "Restream 1",
    "endpoints": {
        "451e4604-246e-4790-9cf9-18312aaaefd0": {
            "name": "YouTube",
            "url": "rtmp://a.rtmp.youtube.com/live2/streamkey",
            "connected": true,
            "stats": {
                "txBytes": 0,
                "rxBytes": 0,
                "bitrate": 0
            }
        }
    },
    "streaming": true,
    "stats": {
        "txBytes": 0,
        "rxBytes": 0,
        "bitrate": 3747.493283469538
    }
}