[−][src]Crate minreq

Minreq

Simple, minimal-dependency HTTP client. The library has a very minimal API, so you'll probably know everything you need to after reading a few examples.

Additional features

Since the crate is supposed to be minimal in terms of dependencies, there are no default features, and optional functionality can be enabled by specifying features for minreq dependency in Cargo.toml:

[dependencies]
minreq = { version = "*", features = ["https", "json-using-serde", "punycode"] }

Below is the list of all available features.

`https`

This feature uses the (very good) rustls crate to secure the connection when needed. Note that if this feature is not enabled (and it is not by default), requests to urls that start with https:// will fail and return a HttpsFeatureNotEnabled error.

`json-using-serde`

This feature allows both serialize and deserialize JSON payload using the serde_json crate.

Request and Response expose with_json() and json() for constructing the struct from JSON and extracting the JSON body out, respectively.

`punycode`

This feature enables requests to non-ascii domains: the punycode crate is used to convert the non-ascii parts into their punycode representations before making the request. If you try to make a request to 㯙㯜㯙㯟.net or i❤.ws for example, with this feature disabled (as it is by default), your request will fail with a PunycodeFeatureNotEnabled error.

Examples

Get

This is a simple example of sending a GET request and printing out the response's body, status code, and reason phrase. The ? are needed because the server could return invalid UTF-8 in the body, or something could go wrong during the download.

let response = minreq::get("http://httpbin.org/ip").send()?;
assert!(response.as_str()?.contains("\"origin\":"));
assert_eq!(response.status_code, 200);
assert_eq!(response.reason_phrase, "OK");

Note: you could change the get function to head or put or any other HTTP request method: the api is the same for all of them, it just changes what is sent to the server.

Body (sending)

To include a body, add with_body("<body contents>") before send().

let response = minreq::post("http://httpbin.org/post")
    .with_body("Foobar")
    .send()?;
assert!(response.as_str()?.contains("Foobar"));

Headers (sending)

To add a header, add with_header("Key", "Value") before send().

let response = minreq::get("http://httpbin.org/headers")
    .with_header("Accept", "text/plain")
    .with_header("X-Best-Mon", "Sylveon")
    .send()?;
let body_str = response.as_str()?;
assert!(body_str.contains("\"Accept\": \"text/plain\""));
assert!(body_str.contains("\"X-Best-Mon\": \"Sylveon\""));

Headers (receiving)

Reading the headers sent by the servers is done via the headers field of the Response. Note: the header field names (that is, the keys of the HashMap) are all lowercase: this is because the names are case-insensitive according to the spec, and this unifies the casings for easier get()ing.

let response = minreq::get("http://httpbin.org/ip").send()?;
assert_eq!(response.headers.get("content-type").unwrap(), "application/json");

Timeouts

To avoid timing out, or limit the request's response time, use with_timeout(n) before send(). The given value is in seconds.

NOTE: There is no timeout by default.

let response = minreq::post("http://httpbin.org/delay/6")
    .with_timeout(10)
    .send()?;
println!("{}", response.as_str()?);

Timeouts

By default, a request has no timeout. You can change this in two ways:

Use with_timeout on your request to set the timeout per-request like so:
```
minreq::get("/").with_timeout(8).send();
```
Set the environment variable MINREQ_TIMEOUT to the desired amount of seconds until timeout. Ie. if you have a program called foo that uses minreq, and you want all the requests made by that program to timeout in 8 seconds, you launch the program like so:
```
$ MINREQ_TIMEOUT=8 ./foo
```
Or add the following somewhere before the requests in the code.
```
std::env::set_var("MINREQ_TIMEOUT", "8");
```

If the timeout is set with with_timeout, the environment variable will be ignored.

Structs

Request	An HTTP request.
Response	An HTTP response.
ResponseLazy	An HTTP response, which is loaded lazily.

Enums

Error	Represents an error while sending, receiving, or parsing an HTTP response.
Method	An HTTP request method.

Functions

connect	Alias for Request::new with `method` set to Method::Connect.
delete	Alias for Request::new with `method` set to Method::Delete.
get	Alias for Request::new with `method` set to Method::Get.
head	Alias for Request::new with `method` set to Method::Head.
options	Alias for Request::new with `method` set to Method::Options.
patch	Alias for Request::new with `method` set to Method::Patch.
post	Alias for Request::new with `method` set to Method::Post.
put	Alias for Request::new with `method` set to Method::Put.
trace	Alias for Request::new with `method` set to Method::Trace.

Type Definitions

URL	A URL type for requests.