Added start of cdn implementation.

This commit is contained in:
Andrew Lalis 2023-01-31 15:00:56 +01:00
parent 67bc04b0fc
commit 4760a5833d
6 changed files with 84 additions and 4 deletions

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# Gymboard
Leaderboards for your local community gym.
## Development
Gymboard is comprised of a variety of components, each in its own directory, and with its own project format. Follow the instructions in the README of the respective project to set that one up.
A `docker-compose.yml` file is defined in this directory, and it defines a set of services that may be used by one or more services. Install docker on your system if you haven't already, and run `docker-compose up -d` to start the services.

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environment:
POSTGRES_USER: gymboard-api-dev
POSTGRES_PASSWORD: testpass
# Database for the gymboard-cdn.
cdn-db:
image: postgres
restart: always
ports:
- "5433:5432"
environment:
POSTGRES_USER: gymboard-cdn-dev
POSTGRES_PASSWORD: testpass
mailhog:
image: mailhog/mailhog

9
gymboard-cdn/README.md Normal file
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# Gymboard-CDN
To avoid having to do expensive and complex computations in the main Gymboard API to handle user video uploads, that functionality is provided by this _Gymboard-CDN_ project.
This CDN offers basic, unauthenticated upload and download capabilities, as well as asynchronous processing of video files to reduce disk usage.
It offers the following endpoints:
- `POST /uploads` - Upload files here.
- `GET /uploads/{id}` - Fetch uploaded files.

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],
"copyright": "Copyright © 2023, Andrew Lalis",
"dependencies": {
"handy-httpd": "~>4.0.2"
"dpq2": "~>1.1.3",
"handy-httpd": "~>5.0.0"
},
"description": "Content delivery network for Gymboard.",
"license": "proprietary",

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{
"fileVersion": 1,
"versions": {
"derelict-pq": "4.0.0",
"derelict-util": "3.0.0-beta.2",
"dpq2": "1.1.3",
"handy-httpd": "5.0.0",
"httparsed": "1.2.1",
"money": "3.0.2",
"stdx-allocator": "2.77.5",
"unit-threaded": "2.1.2",
"vibe-d": "0.9.5"
}
}

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import handy_httpd;
import handy_httpd.handlers.path_delegating_handler;
import dpq2;
import std.stdio;
void main()
{
writeln("Edit source/app.d to start your project.");
const DB_URL = "host=127.0.0.1 port=5433 dbname=gymboard-cdn-dev user=gymboard-cdn-dev password=testpass";
void main() {
ServerConfig config = ServerConfig.defaultValues();
config.port = 8082;
config.reuseAddress = true;
config.workerPoolSize = 10;
PathDelegatingHandler handler = new PathDelegatingHandler();
handler.addMapping("GET", "/uploads/{uploadId}", new VideoFetcher());
handler.addMapping("POST", "/uploads", new VideoUploader());
HttpServer server = new HttpServer(handler, config);
server.start();
}
Connection connectToDb() {
return new Connection(DB_URL);
}
/**
* Handler that fetches a video by its id (if it exists).
*/
class VideoFetcher : HttpRequestHandler {
void handle(ref HttpRequestContext ctx) {
long uploadId = ctx.request.getPathParamAs!ulong("uploadId", 0);
writeln(uploadId);
auto conn = connectToDb();
QueryParams p;
p.sqlCommand = "SELECT 'hello world';";
auto answer = conn.execParams(p);
scope(exit) destroy(answer);
writeln(answer[0][0].as!PGtext);
}
}
/**
* Handler that processes a video upload.
*/
class VideoUploader : HttpRequestHandler {
void handle(ref HttpRequestContext ctx) {
}
}