exred_node_aws_iot_thingshadow_out v0.2.1 Exred.Node.AwsIotThingShadowOut

Publishes messages to AWS IoT Cloud.

The incoming message needs to have a valid AWS topic in the topic field.

Incoming msg format:

msg = %{
  topic   :: [binary] | binary
  payload :: map,
  qos     :: integer,      # quality of service
  retain  :: boolean       # [GenMQTT doc](https://hexdocs.pm/gen_mqtt/GenMQTT.html#publish/5)
}

Link to this section Summary

Functions

Returns a specification to start this module under a supervisor

daemon_child_specs/1 needs to return a list of child specs. These child processes will be started under the DaemonNodeSupervisor

fire/1 is called when the user clicks on the play button on a node in the UI (and with that triggers a ‘fire’ event). It should return a new_state

node_init/1 initializes the node process. This is called as the last step of the node’s init function. Needs to return a new state or a {state, timeout} tuple. (see GenServer documentation)

Link to this section Functions

Link to this function add_out_node(pid, new_out)
Link to this function child_spec(arg)

Returns a specification to start this module under a supervisor.

See Supervisor.

Link to this function daemon_child_specs(config)

daemon_child_specs/1 needs to return a list of child specs. These child processes will be started under the DaemonNodeSupervisor.

Callback implementation for Exred.NodePrototype.daemon_child_specs/1.

fire/1 is called when the user clicks on the play button on a node in the UI (and with that triggers a ‘fire’ event). It should return a new_state.

Since this has access to the node’s state it can be used to implement user triggered actions like logging the state, sending messages from the node or creating debug events that are displayed in the debug tab in the UI.

For an example of how to use it see the Trigger node.

Callback implementation for Exred.NodePrototype.fire/1.

Link to this function get_default_config()
Link to this function node_init(state)

node_init/1 initializes the node process. This is called as the last step of the node’s init function. Needs to return a new state or a {state, timeout} tuple. (see GenServer documentation)

Callback implementation for Exred.NodePrototype.node_init/1.

Link to this function set_out_nodes(pid, out_nodes)
Link to this function start_link(list)