From 339632b4a3f94a6ebee3767054ef6c701858a785 Mon Sep 17 00:00:00 2001 From: Chocobozzz Date: Fri, 12 Jan 2018 17:16:48 +0100 Subject: Fix changing video in watch page --- support/doc/development/server/code.md | 72 ++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 support/doc/development/server/code.md (limited to 'support/doc/development/server/code.md') diff --git a/support/doc/development/server/code.md b/support/doc/development/server/code.md new file mode 100644 index 000000000..d909b0c3d --- /dev/null +++ b/support/doc/development/server/code.md @@ -0,0 +1,72 @@ +# Server code documentation + +The server is a web server developed with [TypeScript](https://www.typescriptlang.org/)/[Express](http://expressjs.com). + + +## Technologies + + * [TypeScript](https://www.typescriptlang.org/) -> Language + * [PostgreSQL](https://www.postgresql.org/) -> Database + * [Express](http://expressjs.com) -> Web server framework + * [Sequelize](http://docs.sequelizejs.com/en/v3/) -> SQL ORM + * [WebTorrent](https://webtorrent.io/) -> BitTorrent tracker and torrent creation + * [Mocha](https://mochajs.org/) -> Test framework + + +## Files + +The server main file is [server.ts](https://github.com/Chocobozzz/PeerTube/blob/master/server.ts). +The server modules description are in the [package.json](https://github.com/Chocobozzz/PeerTube/blob/master/package.json) at the project root. +All other server files are in the [server](https://github.com/Chocobozzz/PeerTube/tree/master/server) directory: + + server.ts -> app initilization, main routes configuration (static routes...) + config -> server YAML configurations (for tests, production...) + scripts -> Scripts files for npm run + server + |__ controllers -> API routes/controllers files + |__ helpers -> functions used by different part of the project (logger, utils...) + |__ initializers -> functions used at the server startup (installer, database, constants...) + |__ lib -> library function (WebTorrent, OAuth2, ActivityPub...) + |__ middlewares -> middlewares for controllers (requests validators, requests pagination...) + |__ models -> Sequelize models for each SQL tables (videos, users, accounts...) + |__ tests -> API tests and real world simulations (to test the decentralized feature...) + + +## Conventions + +Uses [JavaScript Standard Style](http://standardjs.com/). + + +## Developing + + * Install [the dependencies](https://github.com/Chocobozzz/PeerTube#dependencies) + * Run `yarn install` at the root directory to install all the dependencies + * Run PostgreSQL and create the database `peertube_dev`. + * Run `npm run dev:server` to run the server, watch server files modifications and restart it automatically. The server (API + client) listen on `localhost:9000`. + +The `NODE_ENV=test` is set to speed up communications between instances (see [constants.ts](https://github.com/Chocobozzz/PeerTube/blob/master/server/initializers/constants.ts)). + +`npm run help` gives you all available commands. + +If you want to test the decentralization feature, you can easily run 3 instances by running `npm run play`. The instances password are `test1`, `test2` and `test3`. + + +## Architecture + +The server is composed by: + + * a REST API (Express framework) + * a WebTorrent Tracker + +A video is seeded by the server with the [WebSeed](http://www.bittorrent.org/beps/bep_0019.html) protocol (HTTP). + +![Architecture scheme](https://github.com/Chocobozzz/PeerTube/blob/master/support/doc/server/upload-video.png) + +When a user uploads a video, the rest API create the torrent file and then adds it to its database. + +If a user wants to watch the video, the tracker will indicate all other users that are watching the video + the HTTP url for the WebSeed. + +## Newcomers + +The server entrypoint is [server.ts](https://github.com/Chocobozzz/PeerTube/blob/master/server.ts). You can begin to look at this file. +Then you can try to understand the [controllers](https://github.com/Chocobozzz/PeerTube/tree/master/server/controllers): they are the entrypoint of each API request. -- cgit v1.2.3