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rust_http_server

Description : An implementation of a http server from scratch in Rust. References: Official Rust Programming Language

Overview:

I am following the official documentation of Rust Programming language to learn and practice Rust. The purpose of this whole exercise is to develop in-depth understanding of Rust programming and its usage in creating systems like Vector Dbs, Client-side ML frameworks among many. However, I did not want to read the whole documentation at first and then move to their last section which is building a HTTP server from scratch. So, I have started to implement the project in increments while learning the theory as and when i come across those concepts in development process. I am maintaining a Reading list which highlights the concepts I learnt on each day of the development sprint.

Getting Started

cd http
cargo build
cargo run

Output:

Compiling http v0.1.0 (/Users/prateekkumar/zym/rust_grpc_server/http)
Finished dev [unoptimized + debuginfo] target(s) in 0.69s
Running 'target/debug/http'
Public path is: /Users/prateekkumar/zym/rust_http_server/http/public
Server is listening on 127.0.0.1:8080

Next you should open up a new tab in any browser client that supports HTTP/1.1 and make the api calls:

  1. Method: "GET", Path: "/", "Query_string":"", URL: 127.0.0.1:8080

    Output:

     Stream: TcpStream { addr: 127.0.0.1:8080, peer: 127.0.0.1:61164, fd: 4 } OK
     received a request: GET / HTTP/1.1
     Host: 127.0.0.1:8080
     Connection: keep-alive
     sec-ch-ua: "Chromium";v="123", "Not:A-Brand";v="8"
     sec-ch-ua-mobile: ?0
     sec-ch-ua-platform: "macOS"
     DNT: 1
     Upgrade-Insecure-Requests: 1
     User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
     Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
     Sec-Fetch-Site: none
     Sec-Fetch-Mode: navigate
     Sec-Fetch-User: ?1
     Sec-Fetch-Dest: document
     Accept-Encoding: gzip, deflate, br, zstd
     Accept-Language: en-US,en;q=0.9
     Cookie: _grpcui_csrf_token=l4eNuRFyuAbDe-ZLFCkdQ662wWNZ8zWd6fI33ROYZfI
     Stream: TcpStream { addr: 127.0.0.1:8080, peer: 127.0.0.1:61165, fd: 4 } OK
     received a request: GET /style.css HTTP/1.1
     Host: 127.0.0.1:8080
     Connection: keep-alive
     sec-ch-ua: "Chromium";v="123", "Not:A-Brand";v="8"
     DNT: 1
     sec-ch-ua-mobile: ?0
     User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
     sec-ch-ua-platform: "macOS"
     Accept: text/css,*/*;q=0.1
     Sec-Fetch-Site: same-origin
     Sec-Fetch-Mode: no-cors
     Sec-Fetch-Dest: style
     Referer: http://127.0.0.1:8080/
     Accept-Encoding: gzip, deflate, br, zstd
     Accept-Language: en-US,en;q=0.9
     Cookie: _grpcui_csrf_token=l4eNuRFyuAbDe-ZLFCkdQ662wWNZ8zWd6fI33ROYZfI
    
  2. Method: "GET", Path:"/hello", Query_string: "", URL: 127.0.0.1:8080

    Output:

     Stream: TcpStream { addr: 127.0.0.1:8080, peer: 127.0.0.1:61167, fd: 4 } OK
     received a request: GET /hello HTTP/1.1
     Host: 127.0.0.1:8080
     Connection: keep-alive
     sec-ch-ua: "Chromium";v="123", "Not:A-Brand";v="8"
     sec-ch-ua-mobile: ?0
     sec-ch-ua-platform: "macOS"
     DNT: 1
     Upgrade-Insecure-Requests: 1
     User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
     Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
     Sec-Fetch-Site: none
     Sec-Fetch-Mode: navigate
     Sec-Fetch-User: ?1
     Sec-Fetch-Dest: document
     Accept-Encoding: gzip, deflate, br, zstd
     Accept-Language: en-US,en;q=0.9
     Cookie: _grpcui_csrf_token=l4eNuRFyuAbDe-ZLFCkdQ662wWNZ8zWd6fI33ROYZfI
     
    
    
  3. Method: "GET", Path:"/", Query_string:"a=2&b=4&c&d&d=3&d=6", URL=127.0.0.1:8080

    Output:

    Stream: TcpStream { addr: 127.0.0.1:8080, peer: 127.0.0.1:61173, fd: 4 } OK
    received a request: GET /?/test?a=2&b=4&c&d&d=3&d=6 HTTP/1.1
    Host: 127.0.0.1:8080
    Connection: keep-alive
    sec-ch-ua: "Chromium";v="123", "Not:A-Brand";v="8"
    sec-ch-ua-mobile: ?0
    sec-ch-ua-platform: "macOS"
    DNT: 1
    Upgrade-Insecure-Requests: 1
    User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
    Sec-Fetch-Site: none
    Sec-Fetch-Mode: navigate
    Sec-Fetch-User: ?1
    Sec-Fetch-Dest: document
    Accept-Encoding: gzip, deflate, br, zstd
    Accept-Language: en-US,en;q=0.9
    Cookie: _grpcui_csrf_token=l4eNuRFyuAbDe-ZLFCkdQ662wWNZ8zWd6fI33ROYZfI
    

Provisions covered for successful parse:

Methods: [GET, DELETE, POST, PUT, HEAD, CONNECT, OPTIONS, TRACE,PATCH]

ParseError: [InvalidRequest, InvalidEncoding, InvalidProtocol, InvalidMethod], implemented the Debug & Display trait for struct ParseError.

StatusCode: [Ok = 200, BadRequest = 400, NotFound = 404]

Request: [path: &'buf str, query_string: Option<QueryString<'buf>>, method: Method] and we read the stream using read macros and make sure we are covering the scenarios of dangling pointers/references with the help of lifetimes.

Response: [status_code: StatusCode, body: Option] and we write this response back to the stream using write macros.