Hands-On Microservices with Rust

The integration testing client

Add the following struct to your utils.rs source file:

pub struct WebApi {    client: Client,    url: String,    jar: CookieJar,}

It has three fields—an HTTP Client; a base url, which is used to construct full URLs with added paths; and a CookieJar instance to keep cookie values between requests.

The constructor of this struct takes a URL and builds a Client instance with redirects disabled:

impl WebApi {    fn new(url: &str) -> Self {        let client = Client::builder()            .redirect(RedirectPolicy::none())            .build()            .unwrap();        Self {            client,            url: url.into(),            jar: CookieJar::new(),        }    }}

We can add shortcuts to create instances of WebApi for the specific microservice of our application:

pub fn users() -> Self { WebApi::new(USERS) ...