http 1.5.0: http

# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4

[[package]]
name = "bytes"
version = "1.12.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fc652a48c352aef3ea3aed32080501cf3ef6ed5da78602a020c991775b0aff04"

[[package]]
name = "http"
version = "1.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "918d3568bebf352712bc2ef3d46a8bcf1a75b373be6539de198e9105cbbf9ce0"
dependencies = [
 "bytes",
 "itoa",
]

[[package]]
name = "itoa"
version = "1.0.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"

[[package]]
name = "sample-http"
version = "1.0.0"
dependencies = [
 "http",
]

[package]
name = "sample-http"
version = "1.0.0"
edition = "2021"
publish = false

[dependencies]
http = "=1.5.0"

[[bin]]
name = "contract"
path = "test/contract.rs"

Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify http in pkg:cargo/http@1.5.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/http@1.5.0
Demonstrate these symbols/APIs:
  - http

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.

{"case":{"caseId":"case:sha256:5095fb2ffc06b238059846ca9a742fe1ea9fa1ede45b5b05baf86329ffb81755","contract":["Request and Response builders construct typed HTTP requests and responses with status, version, headers, and body","HeaderMap and HeaderValue support inserting, retrieving, and inspecting HTTP headers","Uri parses valid URI strings into scheme, authority, and path_and_query components","StatusCode provides standard HTTP status codes, numerical values, and classification methods"],"goal":"verify http in pkg:cargo/http@1.5.0","kind":"HOW","packages":["pkg:cargo/http@1.5.0"],"schemaVersion":1,"symbols":["http"]},"contractCommand":["cargo","run","--offline"],"environment":{"arch":"x64","distro":"alpine","ecosystem":"cargo","libc":"musl","os":"linux","packageManager":"cargo","schemaVersion":1},"license":"MIT-0","packages":["pkg:cargo/http@1.5.0"],"schemaVersion":1,"subject":"pkg:cargo/http@1.5.0","symbols":["http"],"verifierAdapter":"cargo@1"}

{
  "schemaVersion": 1,
  "goal": "verify http in pkg:cargo/http@1.5.0",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/http@1.5.0"
  ],
  "symbols": [
    "http"
  ]
}

//! Clean-room verification sample for http.

pub use http::*;

use http::header::{HeaderMap, HeaderValue, CONTENT_TYPE, USER_AGENT};
use http::{Method, Request, Response, StatusCode, Uri, Version};

fn main() {
    // 1. Request and Response builders construct typed HTTP requests and responses with status, version, headers, and body
    let req = Request::builder()
        .method(Method::POST)
        .uri("https://example.com/api/test")
        .version(Version::HTTP_11)
        .header(CONTENT_TYPE, "application/json")
        .body(vec![1, 2, 3])
        .expect("failed to build request");

    assert_eq!(req.method(), Method::POST);
    assert_eq!(req.uri().path(), "/api/test");
    assert_eq!(req.version(), Version::HTTP_11);
    assert_eq!(
        req.headers().get(CONTENT_TYPE),
        Some(&HeaderValue::from_static("application/json"))
    );
    assert_eq!(req.body(), &vec![1, 2, 3]);

    let res = Response::builder()
        .status(StatusCode::OK)
        .version(Version::HTTP_11)
        .header("X-Custom-Header", "custom-value")
        .body("hello world")
        .expect("failed to build response");

    assert_eq!(res.status(), StatusCode::OK);
    assert_eq!(res.version(), Version::HTTP_11);
    assert_eq!(
        res.headers().get("X-Custom-Header"),
        Some(&HeaderValue::from_static("custom-value"))
    );
    assert_eq!(*res.body(), "hello world");

    // 2. HeaderMap and HeaderValue support inserting, retrieving, and inspecting HTTP headers
    let mut headers = HeaderMap::new();
    headers.insert(USER_AGENT, HeaderValue::from_static("csx-agent/1.0"));
    headers.insert(CONTENT_TYPE, HeaderValue::from_static("text/plain"));

    assert_eq!(headers.len(), 2);
    assert_eq!(headers.get(USER_AGENT).unwrap(), "csx-agent/1.0");
    assert_eq!(headers.get(CONTENT_TYPE).unwrap(), "text/plain");
    assert!(headers.contains_key(USER_AGENT));
    assert!(!headers.contains_key("authorization"));

    // 3. Uri parses valid URI strings into scheme, authority, and path_and_query components
    let uri: Uri = "https://example.com:8080/path?query=val#frag"
        .parse()
        .expect("valid uri");
    assert_eq!(uri.scheme_str(), Some("https"));
    assert_eq!(uri.authority().map(|a| a.as_str()), Some("example.com:8080"));
    assert_eq!(uri.path(), "/path");
    assert_eq!(uri.query(), Some("query=val"));

    // 4. StatusCode provides standard HTTP status codes, numerical values, and classification methods
    let ok = StatusCode::OK;
    assert_eq!(ok.as_u16(), 200);
    assert!(ok.is_success());
    assert!(!ok.is_client_error());
    assert!(!ok.is_server_error());

    let not_found = StatusCode::NOT_FOUND;
    assert_eq!(not_found.as_u16(), 404);
    assert!(not_found.is_client_error());

    let server_err = StatusCode::INTERNAL_SERVER_ERROR;
    assert_eq!(server_err.as_u16(), 500);
    assert!(server_err.is_server_error());

    println!("All http contract assertions passed successfully.");
}