Alexa fails to send skill request after connecting to MongoDb - mongodb

Question

I have a strange thing going on in my Alexa skill. My skill requires to connect with MongoDB and save data. Whenever I connect to database, Alexa is giving me this response: "There was a problem with the requested skill's response". It is completely weired because few days ago my database and Alexa skill were perfectly working. Now, suddenly, I don't get any response from Alexa even though my database in connected and creats documents.
Below is my JSON INPUT and code from the Launchrequesthandler :
{
"version": "1.0",
"session": {
"new": true,
"sessionId": "amzn1.echo-api.session.b163d6da-ab3d-483c-ba19-60156810739c",
"application": {
"applicationId": "amzn1.ask.skill.bd7f1ea6-53ab-41af-9a59-4853d4906373"
},
"user": {
"userId": "amzn1.ask.account.AFMYVNKRB3REUKGDDLGIFOYXR53ISFLYHQJXHO2YDRYVQCPCRLYQFIVLBE5HDXH6FNMTMN4YLXHR6ZMSJEFQ3Y2BRI76N2FHSHDXAWUPVFB6JKWSRTPA7EWOH6ZOF24KY5DXUBA3UMUY3TNQZ42AOOFESTFWW6VLTU63AHHQMMPKA74M2WX66TN4IYOZUNLMBXMX3LCUBWPO4FY"
}
},
"context": {
"Viewports": [
{
"type": "APL",
"id": "main",
"shape": "RECTANGLE",
"dpi": 213,
"presentationType": "STANDARD",
"canRotate": false,
"configuration": {
"current": {
"mode": "HUB",
"video": {
"codecs": [
"H_264_42",
"H_264_41"
]
},
"size": {
"type": "DISCRETE",
"pixelWidth": 1280,
"pixelHeight": 800
}
}
}
}
],
"Viewport": {
"experiences": [
{
"arcMinuteWidth": 346,
"arcMinuteHeight": 216,
"canRotate": false,
"canResize": false
}
],
"mode": "HUB",
"shape": "RECTANGLE",
"pixelWidth": 1280,
"pixelHeight": 800,
"dpi": 213,
"currentPixelWidth": 1280,
"currentPixelHeight": 800,
"touch": [
"SINGLE"
],
"video": {
"codecs": [
"H_264_42",
"H_264_41"
]
}
},
"Extensions": {
"available": {
"aplext:backstack:10": {}
}
},
"System": {
"application": {
"applicationId": "amzn1.ask.skill.bd7f1ea6-53ab-41af-9a59-4853d4906373"
},
"user": {
"userId": "amzn1.ask.account.AFMYVNKRB3REUKGDDLGIFOYXR53ISFLYHQJXHO2YDRYVQCPCRLYQFIVLBE5HDXH6FNMTMN4YLXHR6ZMSJEFQ3Y2BRI76N2FHSHDXAWUPVFB6JKWSRTPA7EWOH6ZOF24KY5DXUBA3UMUY3TNQZ42AOOFESTFWW6VLTU63AHHQMMPKA74M2WX66TN4IYOZUNLMBXMX3LCUBWPO4FY"
},
"device": {
"deviceId": "amzn1.ask.device.AHVUJSCJ4KXLFF5SOTIFUCLYUXGBZFLUK3QURQHGX5S7N5E53K7O3ZXEO5V7KFPDR6XPPZECKTX5HEWB3BTLGAM34J7DVPKOALFNNDXCYDUIQWHNH327H3LCV3RNS7XFQLMJ6FXZ36JB5SF3YRUAEULDNIQCBSGZPR7J7KPCGCAHLPJXV5YRA",
"supportedInterfaces": {}
},
"apiEndpoint": "https://api.amazonalexa.com",
"apiAccessToken": "eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjEifQ.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.MheHasYZKwNcTzwQLjt42C_yujmQJrGGHQ6tvWXt7uNTRzi73-MzzxXMOrztDYaBBCHmHZQS0Qy0-blTfgBT2Yqj5W5gAmcAc_CKKZhh4awlM1xGSAD87kOW8ZiLY2n68IfiKTsUHf6Bp4YiLOMcWWErSTCq91JeYeau0W7B5TvZGTm04OmfK-qkZBVPq6ME8_ulukdZUNxIpVUItkSEuhppcegUcGkzqYdrPRY0BJrsBe-Pytu5xLRiBM3T78nTysnGM288IJSccGJ4rmW4UdzHA_lnH7543QhgU9t71JRncgEDKEsEcVgxs5biFR9il4W8ASfwuDeJhdy8HpiXZw"
}
},
"request": {
"type": "LaunchRequest",
"requestId": "amzn1.echo-api.request.3e29f996-69b2-4e90-bfef-628d74f57307",
"locale": "en-US",
"timestamp": "2021-07-19T02:06:14Z",
"shouldLinkResultBeReturned": false
}
}
//database connection//
const q="mongodb+srv://sumya:sumya123#mydata.acxs0.mongodb.net/Mydata?retryWrites=true&w=majority";
mongoose.connect(q,{ useNewUrlParser: true, useUnifiedTopology: true,useFindAndModify: false })
.then(() => console.log("Database connected!")
)
.catch(err => console.log(err))
const Alexa = require('ask-sdk-core');
const LaunchRequestHandler = {
canHandle(handlerInput) {
return Alexa.getRequestType(handlerInput.requestEnvelope) === 'LaunchRequest';
},
async handle(handlerInput) {
const speakOutput = 'Hi, I am Nao. I am here to give you counseling on your anxiety issues. Can I have your name, please? Note: We are not professional therapists or counselors. ';
const useri=handlerInput.requestEnvelope.session.user.userID;
const z=handlerInput.requestEnvelope.session.sessionId;
const g=Alexa.getUserId(handlerInput.requestEnvelope);
const curr_session=new post.session({
alexa_sessionid:z
});
let user=await post.findOne({userID:g});
if(!user){
user=new post({
userID:g
});
}
user.session_list.push(curr_session);
user.save();
return handlerInput.responseBuilder
.speak(speakOutput)
.reprompt(speakOutput)
.getResponse();
}
};
Here is the Log that I got from Cloudwatch.
START RequestId: 6a416b77-5d2c-4ebe-8ac4-dec09f67e9b9 Version: 304
2021-07-19T16:40:00.570Z 6a416b77-5d2c-4ebe-8ac4-dec09f67e9b9 INFO Database connected!
END RequestId: 6a416b77-5d2c-4ebe-8ac4-dec09f67e9b9
REPORT RequestId: 6a416b77-5d2c-4ebe-8ac4-dec09f67e9b9 Duration: 8008.11 ms Billed Duration: 8000 ms Memory Size: 512 MB Max Memory Used: 102 MB Init Duration: 653.49 ms
2021-07-19T16:40:08.023Z 6a416b77-5d2c-4ebe-8ac4-dec09f67e9b9 Task timed out after 8.01 seconds
START RequestId: 4e671447-8207-414e-aaf4-9a807fe3ac01 Version: 304
2021-07-19T16:40:08.894Z 4e671447-8207-414e-aaf4-9a807fe3ac01 INFO ~~~~ Session ended:
{
"version": "1.0",
"session": {
"new": false,
"sessionId": "amzn1.echo-api.session.05ca6843-cdc8-47eb-9a5f-081942cf2674",
"application": {
"applicationId": "amzn1.ask.skill.bd7f1ea6-53ab-41af-9a59-4853d4906373"
},
"user": {
"userId": "amzn1.ask.account.AFMYVNKRB3REUKGDDLGIFOYXR53ISFLYHQJXHO2YDRYVQCPCRLYQFIVLBE5HDXH6FNMTMN4YLXHR6ZMSJEFQ3Y2BRI76N2FHSHDXAWUPVFB6JKWSRTPA7EWOH6ZOF24KY5DXUBA3UMUY3TNQZ42AOOFESTFWW6VLTU63AHHQMMPKA74M2WX66TN4IYOZUNLMBXMX3LCUBWPO4FY"
}
},
"context": {
"Viewports": [
{
"type": "APL",
"id": "main",
"shape": "RECTANGLE",
"dpi": 213,
"presentationType": "STANDARD",
"canRotate": false,
"configuration": {
"current": {
"mode": "HUB",
"video": {
"codecs": [
"H_264_42",
"H_264_41"
]
},
"size": {
"type": "DISCRETE",
"pixelWidth": 1280,
"pixelHeight": 800
}
}
}
}
],
"Viewport": {
"experiences": [
{
"arcMinuteWidth": 346,
"arcMinuteHeight": 216,
"canRotate": false,
"canResize": false
}
],
"mode": "HUB",
"shape": "RECTANGLE",
"pixelWidth": 1280,
"pixelHeight": 800,
"dpi": 213,
"currentPixelWidth": 1280,
"currentPixelHeight": 800,
"touch": [
"SINGLE"
],
"video": {
"codecs": [
"H_264_42",
"H_264_41"
]
}
},
"Extensions": {
"available": {
"aplext:backstack:10": {}
}
},
"System": {
"application": {
"applicationId": "amzn1.ask.skill.bd7f1ea6-53ab-41af-9a59-4853d4906373"
},
"user": {
"userId": "amzn1.ask.account.AFMYVNKRB3REUKGDDLGIFOYXR53ISFLYHQJXHO2YDRYVQCPCRLYQFIVLBE5HDXH6FNMTMN4YLXHR6ZMSJEFQ3Y2BRI76N2FHSHDXAWUPVFB6JKWSRTPA7EWOH6ZOF24KY5DXUBA3UMUY3TNQZ42AOOFESTFWW6VLTU63AHHQMMPKA74M2WX66TN4IYOZUNLMBXMX3LCUBWPO4FY"
},
"device": {
"deviceId": "amzn1.ask.device.AHVUJSCJ4KXLFF5SOTIFUCLYUXGBZFLUK3QURQHGX5S7N5E53K7O3ZXEO5V7KFPDR6XPPZECKTX5HEWB3BTLGAM34J7DVPKOALFNNDXCYDUIQWHNH327H3LCV3RNS7XFQLMJ6FXZ36JB5SF3YRUAEULDNIQCBSGZPR7J7KPCGCAHLPJXV5YRA",
"supportedInterfaces": {}
},
"apiEndpoint": "https://api.amazonalexa.com",
"apiAccessToken": "eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjEifQ.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.d-u2NVM8g_trqjKN_IxpFYy1_Fp-iL6MhTV8uOqScwa-kQF4ax-LzOWKaOE-ZrTW75UGhf6LxNorGxEDDhzNajObdQt9NBGIoM-E-LcLX1rjKvUarDgHvbQFLMt5HzjKNBSJjJ-ZyQodmI-7qDijf5vag3ea6ITEP1jciU5A0iMAtZNhKDNp0hgt7oyfYypRihWklSFrj21KXBjwo0nO0mJyA-Q81jAJU-wjxLDLXm6btsD4z4NWtHYMkjiEcjXfPhE6MyFNEH1_jPU6HbnOl1xRQJkEtTZeb6C44ZmzUkfrKRgWetWqfOr2GnF11vpKGk2_ueoNJZcBoJhzr57DiQ"
}
},
"request": {
"type": "SessionEndedRequest",
"requestId": "amzn1.echo-api.request.bf2b3b37-7260-4813-a43c-b94ae49b45bf",
"timestamp": "2021-07-19T16:40:08Z",
"locale": "en-US",
"reason": "ERROR",
"error": {
"type": "INVALID_RESPONSE",
"message": "An exception occurred while dispatching the request to the skill."
}
}
}

Answer 1

If you are hosting skill in lambda, there may be a chance for timeout. Database operations may take time, meanwhile lambda closed the session.
I think following log line suggests the same.
**2021-07-19T16:40:08.023Z 6a416b77-5d2c-4ebe-8ac4-dec09f67e9b9 Task timed out after 8.01 seconds**
Also, we have to consider maximum time allowed for Alexa to receive the response from end point. It is good to cap the response by 8 secs. For more information : DeferredResponse