# HttpComponents Client 4.1.3 API

Packages
org.apache.http.annotation
org.apache.http.auth: The API for client-side HTTP authentication against a server.
org.apache.http.auth.params: Parameters for configuring HTTP authentication classes.
org.apache.http.client: The API for client-side HTTP communication.
org.apache.http.client.cache: This package consists largely of constants and interfaces that are necessary for building new storage backends for the `CachingHttpClient` or for those clients wanting to get a little more behavioral information out of the cache module (for example, whether a particular response was a cache hit or not).
org.apache.http.client.entity: Additional HTTP entity implementations that depend on HttpClient specific features.
org.apache.http.client.methods: Request implementations for the various HTTP methods like GET and POST.
org.apache.http.client.params: Parameters for configuring the default HttpClient implementation.
org.apache.http.client.protocol: Additional request and response interceptors for HTTP state and authentication management.
org.apache.http.client.utils: Helpers and utility classes for HttpClient.
org.apache.http.conn: The client-side connection management and handling API that provides interfaces and implementations for opening and managing client side HTTP connections.
org.apache.http.conn.params: Parameters for configuring HTTP connection and connection management related classes.
org.apache.http.conn.routing: The client-side route representation and tracking API.
org.apache.http.conn.scheme: `Scheme` class represents a protocol scheme such as "http" or "https" and contains a number of protocol properties such as the default port and the socket factory to be used to creating `Socket`s for the given protocol
org.apache.http.conn.ssl: TLS/SSL specific API.
org.apache.http.conn.util: A collection of HTTP connection utility classes.
org.apache.http.cookie: The API for client-side state management via cookies.
org.apache.http.cookie.params: Parameters for configuring HTTP state management classes.
org.apache.http.entity.mime: Support for MIME multipart encoded entities
org.apache.http.entity.mime.content: MIME Multipart content body parts.
org.apache.http.impl.auth: Default implementations for interfaces in `org.apache.http.auth`.
org.apache.http.impl.client: Default implementations for interfaces in `org.apache.http.client`.
org.apache.http.impl.client.cache: This package contains a cache module that can be used for HTTP/1.1 client-side caching.
org.apache.http.impl.client.cache.ehcache: This package contains a storage backend based on Ehcache that can be plugged into a `CachingHttpClient` and used for storing cache entries.
org.apache.http.impl.client.cache.memcached: This package contains a storage backend based on memcached that can be plugged into a `CachingHttpClient` and used for storing cache entries.
org.apache.http.impl.conn: Default implementations for interfaces in `org.apache.http.impl.conn` and related classes.
org.apache.http.impl.conn.tsccm: The implementation of a thread-safe client connection manager.
org.apache.http.impl.cookie: Default implementations for interfaces in `org.apache.http.cookie`.

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