Struct reqwest::async::ClientBuilder

pub struct ClientBuilder { /* private fields */ }

A ClientBuilder can be used to create a Client with custom configuration.

Implementations

impl ClientBuilder

pub fn new() -> ClientBuilder

Constructs a new ClientBuilder.

This is the same as Client::builder().

pub fn build(self) -> Result<Client>

Returns a Client that uses this ClientBuilder configuration.

Errors

This method fails if TLS backend cannot be initialized, or the resolver cannot load the system configuration.

pub fn tcp_nodelay(self) -> ClientBuilder

Set that all sockets have SO_NODELAY set to true.

pub fn use_default_tls(self) -> ClientBuilder

Use native TLS backend.

pub fn add_root_certificate(self, cert: Certificate) -> ClientBuilder

Add a custom root certificate.

This can be used to connect to a server that has a self-signed certificate for example.

pub fn identity(self, identity: Identity) -> ClientBuilder

Sets the identity to be used for client certificate authentication.

pub fn danger_accept_invalid_hostnames(
    self,
    accept_invalid_hostname: bool
) -> ClientBuilder

Controls the use of hostname verification.

Defaults to false.

Warning

You should think very carefully before you use this method. If hostname verification is not used, any valid certificate for any site will be trusted for use from any other. This introduces a significant vulnerability to man-in-the-middle attacks.

pub fn danger_accept_invalid_certs(
    self,
    accept_invalid_certs: bool
) -> ClientBuilder

Controls the use of certificate validation.

Defaults to false.

Warning

You should think very carefully before using this method. If invalid certificates are trusted, any certificate for any site will be trusted for use. This includes expired certificates. This introduces significant vulnerabilities, and should only be used as a last resort.

pub fn default_headers(self, headers: HeaderMap) -> ClientBuilder

Sets the default headers for every request.

pub fn gzip(self, enable: bool) -> ClientBuilder

Enable auto gzip decompression by checking the ContentEncoding response header.

If auto gzip decompresson is turned on:

• When sending a request and if the request’s headers do not already contain an Accept-Encoding and Range values, the Accept-Encoding header is set to gzip. The body is not automatically inflated.
• When receiving a response, if it’s headers contain a Content-Encoding value that equals to gzip, both values Content-Encoding and Content-Length are removed from the headers’ set. The body is automatically deinflated.

Default is enabled.

pub fn proxy(self, proxy: Proxy) -> ClientBuilder

Add a Proxy to the list of proxies the Client will use.

pub fn no_proxy(self) -> ClientBuilder

Clear all Proxies, so Client will use no proxy anymore.

pub fn use_sys_proxy(self) -> ClientBuilder

Add system proxy setting to the list of proxies

pub fn redirect(self, policy: RedirectPolicy) -> ClientBuilder

Set a RedirectPolicy for this client.

Default will follow redirects up to a maximum of 10.

pub fn referer(self, enable: bool) -> ClientBuilder

Enable or disable automatic setting of the Referer header.

Default is true.

pub fn timeout(self, timeout: Duration) -> ClientBuilder

Enables a request timeout.

The timeout is applied from the when the request starts connecting until the response body has finished.

Default is no timeout.

pub fn max_idle_per_host(self, max: usize) -> ClientBuilder

Sets the maximum idle connection per host allowed in the pool.

Default is usize::MAX (no limit).

pub fn h2_prior_knowledge(self) -> ClientBuilder

Only use HTTP/2.

pub fn http1_title_case_headers(self) -> ClientBuilder

Enable case sensitive headers.

pub fn executor<E>(self, executor: E) -> ClientBuilder where
    E: Executor<Box<dyn Future<Item = (), Error = ()> + Send>> + Send + Sync + 'static, 

Allow changing the Hyper runtime executor

pub fn connect_timeout(self, timeout: Duration) -> ClientBuilder

Set a timeout for only the connect phase of a Client.

Default is None.

Note

This requires the futures be executed in a tokio runtime with a tokio timer enabled.

pub fn local_address<T>(self, addr: T) -> ClientBuilder where
    T: Into<Option<IpAddr>>, 

Bind to a local IP Address

pub fn cookie_store(self, enable: bool) -> ClientBuilder

Enable a persistent cookie store for the client.

Cookies received in responses will be preserved and included in additional requests.

By default, no cookie store is used.

Trait Implementations

impl Debug for ClientBuilder

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.