Support JSON with the MQTT Trigger

[ayh20]

I'm submitting a ... (check one with "x")

[] bug report => search github for a similar issue or PR before submitting
[x] feature request
[] support request
[] general question

Current behavior (how does the issue manifest): MQTT messages are normally JSON ... but the MQTT trigger output a string Expected behavior: output a "object" type when required Minimal steps to reproduce the problem (not required if feature enhancement): revieve a message and try to find a way to parse it to an object What is the motivation / use case for changing the behavior? make FLOGO easier to use with JSON data Please tell us about your environment (Operating system, docker version, browser & web ui version, etc):

Flogo version (CLI & contrib/lib. If unknown, leave empty or state unknown): 0.X.X 0.5.5 Additional information you deem important (e.g. issue happens only occasionally): Very

[mellistibco]

@ayh20 assuming the message from the trigger is mapped to a flow param of typ object and message contains a valid json string, then the engine will coerce the type into the object that the flow executes against.

Were you experiencing a different behavior?