Http Server in AngelScript

Here’s the translation of the HTTP Server example from Go to AngelScript, formatted in Markdown suitable for Hugo:

import std.socket;
import std.string;

// A fundamental concept in HTTP servers is handlers. A handler is a function
// that processes HTTP requests. In AngelScript, we'll define these as functions
// that take a socket connection as an argument.

void hello(socket@ conn) {
    string response = "HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\n\r\nhello\n";
    conn.send(response);
}

void headers(socket@ conn) {
    // This handler does something a little more sophisticated by reading
    // all the HTTP request headers and echoing them into the response body.
    string request;
    conn.receive(request);
    
    array<string> lines = request.split("\r\n");
    string response = "HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\n\r\n";
    
    for (uint i = 1; i < lines.length(); i++) {
        if (lines[i] == "") break;
        response += lines[i] + "\n";
    }
    
    conn.send(response);
}

void main() {
    // We create a server socket and bind it to port 8090
    socket@ server = socket();
    server.bind(8090);
    server.listen();
    
    print("Server listening on port 8090...\n");
    
    while (true) {
        socket@ conn;
        server.accept(conn);
        
        // Read the first line of the request to determine the path
        string request;
        conn.receive(request);
        array<string> requestLine = request.split(" ");
        
        if (requestLine[1] == "/hello") {
            hello(conn);
        } else if (requestLine[1] == "/headers") {
            headers(conn);
        } else {
            string response = "HTTP/1.1 404 Not Found\r\nContent-Type: text/plain\r\n\r\nNot Found";
            conn.send(response);
        }
        
        conn.close();
    }
}

This AngelScript code creates a basic HTTP server that listens on port 8090 and handles two routes: /hello and /headers.

To run the server:

$ angelscript http-server.as &

You can then access the server using curl:

$ curl localhost:8090/hello
hello

$ curl localhost:8090/headers
Host: localhost:8090
User-Agent: curl/7.68.0
Accept: */*

Note that AngelScript doesn’t have built-in HTTP server capabilities like Go’s net/http package. This example uses low-level socket operations to create a basic HTTP server. In a real-world scenario, you might want to use a more robust HTTP server library if available for AngelScript.

Also, this implementation is single-threaded and handles requests sequentially. For a production server, you’d want to implement concurrent request handling.

Exit in AngelScript

Context in AngelScript

Learn X By Example

Title here

Http Server in AngelScript