Networking and HTTP

The libraries in this subsection are as follows:

  • network (module Network) and network-uri: Low-level networking on bare sockets
  • connection: Easy-to-use abstraction on TCP connections. Supports TLS and HTTP or SOCKS proxies out of the box.

Basic low-level networking using the network package has been discussed in Chapter 6, I/O and Streaming.

For a bit higher-level TCP client communication, the connection package provides a nice little abstraction layer. Plus, connection supports SSL/TLS and SOCKS with minimal configuration. A connection is established primarily by defining a configuration value of type ConnectionParams, given by:

data ConnectionParams = ConnectionParams { connectionHostname :: HostName , connectionPort :: PortNumber ...

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