Finesse Responses

Topic Name	finesse.info.responses.{invokeID}
Topic Type	Gadgets subscribe to this topic.

Responses to requests are published to these channels. When a request is made, the gadget generates and specifies a unique invokeID as part of the request. This invokeID is used as the trailing token in the topic to which the response of the request is published.

Because this topic is only used to communicate the response of a single request and never used again, be sure to unsubscribe from the topic as part of the callback handler in the subscribe request. For example:

Code Snippet

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// Generate invokeID and construct request
var UUID = _util.generateUUID(),
data = {
    type: "ExampleReq",
    data: {},
    invokeID: UUID
},


// Subscribe to the response channel to ensure we don't miss the response
OAAsubid = gadgets.Hub.subscribe("finesse.info.responses."+ UUID, function (topic, data) {
    // Unsubscribe from the response topic to prevent memory leaks
    // Do this before processing the response in case the processing throws an exception
    gadgets.Hub.unsubscribe(OAAsubid);
    
    // Process the response here
});


// Publish the request after we have registered our response callback on the response topic
gadgets.Hub.publish("finesse.info.requests", data);