The httpClient sends the request of an exchange to a Web Server using the HTTP protocol. Usually it will be globally used inside the transport. However, it is also possible to use it inside a proxy to give the proxy an individual configuration for its outgoing HTTP connection that is different from the global configuration in the transport.
Connection pooling, timeout, retry, and proxy settings for outgoing HTTP connections made by this element. When omitted, the router's global httpClientConfig applies.