This module implements a Hare.Context.Action behaviour to declare an exchange on the AMQP server.

Config

Configuration must be a Keyword.t with the following fields:

• :name - the name of the exchange
• :type - (defaults to :direct) the type of the exchange
• :opts - (defaults to []) the options to be given to the adapter
• :export_as - (defaults to nil) the key to export the declared exchange to

The :export_as config allows the action to export a Hare.Core.Exchange struct to be used later by other steps (for example: to bind a queue to it)

alias Hare.Context.Action.DeclareExchange

config = [name: "foo",
          type: :fanout,
          opts: [durable: true],
          export_as: :ex]

exports = %{}

DeclareExchange.run(chan, config, exports)
# => {:ok, nil, %{ex: %Hare.Core.Exchange{chan: chan, name: "foo"}}}