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Rust

Add a Path Substitution Parameter to a REST Request

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Demonstrates Rest.AddPathParam, which adds or replaces a path-substitution parameter. Before a request is sent, each occurrence of the name in the URI path is replaced with its value.

Background. Path parameters keep a URI path template readable—placeholders such as {userId} are substituted with concrete values just before the request is sent.

Chilkat Rust Downloads

Rust

let rest = chilkat::Rest::new();

// Connect to the REST server.  The 3rd argument enables TLS (use true for HTTPS on port 443),
// and the 4th enables automatic reconnection if the connection is dropped between requests.
let b_tls = true;
let b_auto_reconnect = true;
if rest.connect("example.com", 443, b_tls, b_auto_reconnect).is_err() {
    println!("{}", rest.last_error_text());
    return;
}

// Add path-substitution parameters.  Before a request is sent, each occurrence of the name in the
// URI path is replaced with the value.  This keeps the path template readable.
let _ = rest.add_path_param("{userId}", "12345");
let _ = rest.add_path_param("{orderId}", "98765");

// The placeholders in the path are replaced before the request is sent.
let Ok(response_text) = rest.full_request_no_body("GET", "/users/{userId}/orders/{orderId}") else {
    println!("{}", rest.last_error_text());
    return;
};

println!("{}", response_text);