[Docs] Alexa CanFulfillIntentRequest

system · 2019-03-20 16:43:53 UTC

Learn more about how to implement the Alexa CanFulfillIntentRequest feature in your Jovo project.

This is a companion discussion topic for the original entry at https://www.jovo.tech/docs/amazon-alexa/canfulfill

Voice_First · 2019-03-25 23:12:15 UTC

Hey,

I am having trouble with CanFulfillIntentRequest I have followed the instructions above with the following issues:

CanFulfillIntentRequest does not return a valid response

Here is the response I receive from Alexa:

{
  "session":{
    "new": true,
    "sessionId":"SessionId.1ef4a7c9-07f1-42b1-8798-9e00001bfcb1",
    "application":{
      "applicationId":"amzn1.ask.skill.d3cb6156-f160-401c-ab25-fa04fc5c3861"
    },
    "attributes":{
      "key": "string value"
    },
    "user":{
      "userId":"amzn1.ask.account.AGFBGMJPGUGT2HFEAHITSXUUABA4VZ7YOTIW3VMTPPJPSBH2O5FRS5RUIPHFMXG5UG4OV6TTIR5QVNKMT5XCHCYHVGRU7ISYFHZ7ZO22LLFJDXJDSZ5IBMP3H6VRAPREBH56YODZW5I5T5DBMLJPWXUAJ6M2YDQP275YCMJDUOCSQTKDOOYTSG7QVGRE7FIOSF2SUHD7F2CNTRQ"
    }
  },
  "request":{
    "type":"CanFulfillIntentRequest",
    "requestId":"EdwRequestId.07f343d9-5fe2-4eca-bae9-b21bb276d0f0",
    "intent":{
      "name":"LAUNCH"
    },
    "locale":"en-US",
    "timestamp":"2017-10-03T22:02:29Z"
  },
  "context":{
    "AudioPlayer":{
      "playerActivity":"IDLE"
    },
    "System":{
      "application":{
        "applicationId":"amzn1.ask.skill.d3cb6156-f160-401c-ab25-fa04fc5c3861"
      },
      "user":{
        "userId":"amzn1.ask.account.AGFBGMJPGUGT2HFEAHITSXUUABA4VZ7YOTIW3VMTPPJPSBH2O5FRS5RUIPHFMXG5UG4OV6TTIR5QVNKMT5XCHCYHVGRU7ISYFHZ7ZO22LLFJDXJDSZ5IBMP3H6VRAPREBH56YODZW5I5T5DBMLJPWXUAJ6M2YDQP275YCMJDUOCSQTKDOOYTSG7QVGRE7FIOSF2SUHD7F2CNTRQ"
      },
      "device":{
        "supportedInterfaces":{

        }
      }
    }
  },
  "version":"1.0"
}

Response

{
	"status": "SUCCESSFUL",
	"result": {
		"skillExecutionInfo": {
			"invocationRequest": {
				"endpoint": "arn:aws:lambda:us-east-1:604715680480:function:voice-dry-cleaner-dot-com-V3-APL",
				"body": {
					"session": {
						"new": true,
						"sessionId": "SessionId.1ef4a7c9-07f1-42b1-8798-9e00001bfcb1",
						"application": {
							"applicationId": "amzn1.ask.skill.d3cb6156-f160-401c-ab25-fa04fc5c3861"
						},
						"attributes": {
							"key": "string value"
						},
						"user": {
							"userId": "amzn1.ask.account.AGFBGMJPGUGT2HFEAHITSXUUABA4VZ7YOTIW3VMTPPJPSBH2O5FRS5RUIPHFMXG5UG4OV6TTIR5QVNKMT5XCHCYHVGRU7ISYFHZ7ZO22LLFJDXJDSZ5IBMP3H6VRAPREBH56YODZW5I5T5DBMLJPWXUAJ6M2YDQP275YCMJDUOCSQTKDOOYTSG7QVGRE7FIOSF2SUHD7F2CNTRQ"
						}
					},
					"request": {
						"type": "CanFulfillIntentRequest",
						"requestId": "EdwRequestId.07f343d9-5fe2-4eca-bae9-b21bb276d0f0",
						"intent": {
							"name": "LAUNCH"
						},
						"locale": "en-US",
						"timestamp": "2017-10-03T22:02:29Z"
					},
					"context": {
						"AudioPlayer": {
							"playerActivity": "IDLE"
						},
						"System": {
							"application": {
								"applicationId": "amzn1.ask.skill.d3cb6156-f160-401c-ab25-fa04fc5c3861"
							},
							"user": {
								"userId": "amzn1.ask.account.AGFBGMJPGUGT2HFEAHITSXUUABA4VZ7YOTIW3VMTPPJPSBH2O5FRS5RUIPHFMXG5UG4OV6TTIR5QVNKMT5XCHCYHVGRU7ISYFHZ7ZO22LLFJDXJDSZ5IBMP3H6VRAPREBH56YODZW5I5T5DBMLJPWXUAJ6M2YDQP275YCMJDUOCSQTKDOOYTSG7QVGRE7FIOSF2SUHD7F2CNTRQ"
							},
							"device": {
								"supportedInterfaces": {}
							}
						}
					},
					"version": "1.0"
				}
			},
			"invocationResponse": {
				"body": {
					"version": "1.0",
					"response": {
						"canFulfillIntent": {}
					}
				}
			},
			"metrics": {
				"skillExecutionTimeInMilliseconds": 86
			}
		},
		"error": null
	}
}

Zoom-In On Failure

"invocationResponse": {
	"body": {
	        "version": "1.0",
	        "response": {
		"canFulfillIntent": {}
		}
	}
},

Expected Response

"invocationResponse": {
	"body": {
	        "version": "1.0",
	        "response": {
		"canFulfillIntent": {
                    canFulfill: "YES"
                    }
		}
	}
},

Any ideas of why I do not receive canFulfill in my response?

jan · 2019-03-27 15:23:57 UTC

Hi @Voice_First,

Thank you for raising this issue! Fixed in Jovo 2.1.5: https://github.com/jovotech/jovo-framework/blob/master/CHANGELOG.md#215-2019-03-27

Dave_Young · 2019-04-11 17:48:49 UTC

Hi, following up on this. I have all the latest in Jovo cli and frameworks.

In the alexa console, using Manual JSON I get a response back which LOOKS good:

Mine:

Expected:

They look identical!
However, the functional test says it doesn’t. Any thoughts as to other causes?

Dave_Young · 2019-04-18 15:22:21 UTC

Hi, this still is not working properly. Expected, from the docs (https://developer.amazon.com/docs/custom-skills/understand-name-free-interaction-for-custom-skills.html#response-to-canfulfillintentrequest):

{
    "version":"1.0",
    "response":{
        "canFulfillIntent": {
            "canFulfill": "YES",
            "slots":{
                "slotName1": {
                    "canUnderstand": "YES",
                    "canFulfill": "YES"
                },
               "slotName2": {
                    "canUnderstand": "YES",
                    "canFulfill": "YES"
                }
            }
        }
    }
}
And.. current output looks like this:
{
	"version": "1.0",
	"response": {
		"canFulfillIntent": {
			"canFulfill": "YES",
			"slots": {
				"slotName": "color",
				"canUnderstandSlot": "YES",
				"canFulfillSlot": "YES"
			}
		}
	}
}

So the slots are not being formatted properly.

Please note that this only happens when using the optional this.canFulfillSlot command prior to this.canFulfillRequest

Dave_Young · 2019-04-18 15:02:44 UTC

Additional feedback from Functional Test results:

This skill implements the Alexa CanFulfillIntentRequest interface, but the CanFulfillIntentRequest interface call’s response is blank or not in the defined structure. We found your endpoint to respond with unsupported format for MyColorIsIntent. Please implement the CanFulfillIntentRequest interface as outlined in the our documentation. The skill should respond properly to requests without a UserId present, without session information present, and should respond to a CanFulfillIntentRequest call for the skill’s intents included within the interaction model. More information about CanFulfillIntentRequest can be found in our documentation. Opting out of the Alexa CanFulfillIntentRequest interface can also resolve this issue.

Error: Empty or No Response from endpoint, Intent Name: MyColorIsIntent, Slot Names: color, Slot Values: dayle

jan · 2019-04-23 07:32:58 UTC

Hi Dave, thanks for pointing out this bug . This should work now after doing jovo update!