ewolff/erlang-example

Simple example for an Erlang client / server

Simple Erlang example

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This is a very simple example for an Erlang based application with a client and a server exchanging messages.

To run you need:

• Erlang

To execute the example:

• Starting Erlang with erl -sname servernode.
• Compile the server module: c(server).
• Spawn the server: Pid = spawn(fun server:loop/0).
• You can now send it messages like this: Pid ! "42".

Distributed messages are also easy to do:

• Enter register(serverpid, Pid). to register the server
• Start another Erlang process: erl -sname clientnode.
• Enter net_kernel:connect_node(servernode@name). to set up an Erlang cluster. Change name to what the Erlang prompt on the server says. If it works correctly it returns true. -Enter {serverpid, servernode@name} ! "42". to send the server a message.