AWS Serverless Framework Nodejs Push Notification

Question

I am using Serverless framework to create lambda functions with node.js backend that uses fcm-push package.

Desired flow : Call api from mobile app -> api uses fcm-push package to send the payload/message/registration tokens to Firebase Cloud Messsaging -> sends push notification to Android and iOS devices

This works perfectly when I run the api locally using "serverless invoke local..."

However, when I do "serverless deploy" and hit the api endpoint from mobile app OR a rest client like Postman, the api call times out, i changed the timeout to 45 seconds and still times out. To troubleshoot, I removed all fcm related code from the api to see if api returns a response while hitting from mobile app/Postman. It does. So it seems like AWS is preventing the api to make a call to fcm, and the call lasts until it times out.

I am not sure what I can do to get around this as I am fairly new to using AWS, so any input would be helpful

Once check your security group out bond rules.may be it's related to firewall thing. — Murali
– Murali, Commented May 18, 2017 at 4:11
@Murali where on the console can I check the outbound rules? — yellowmonkey
– yellowmonkey, Commented May 18, 2017 at 4:20
Is your lambda function running in a vpc? If yes, you'll need to enable Internet access using a NAT instance or a NAT gateway. This is given in the lambda docs. docs.aws.amazon.com/lambda/latest/dg/vpc.html#vpc-internet — user818510
– user818510, Commented May 18, 2017 at 5:58

Community · Accepted Answer · 2017-05-23 12:18:14Z

0

If you are using API Gateway as API endpoint which is connected to a lambda function, then you need to specify the body template in the API gateway itself. Make sure you are able to get the values at your Lambda function that you have been sending via the REST API call to your API gateway.

Please find the link to this answer I wrote earlier to achieve the same.

edited May 23, 2017 at 12:18

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answered May 18, 2017 at 4:12

Sudip

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2 Comments

yellowmonkey Over a year ago

My issue isn't to access the API endpoint, the issue is that when hitting the endpoint from mobile/postman after "serverless deploy", the code in the api is not able to call Firebase Cloud Messaging using fcm-push to send push notification. When I call this api locally, the push notification is sent perfectly

Sudip Over a year ago

Are you using the Firebase Web SDK or, Firebase Admin SDK? The Firebase Admin SDK is meant to run on trusted devices, such as a Node.js server that you host. The Firebase Web SDK is targeted towards client-side devices such as browsers and Node.js IoT devices.

Parth Bhavsar · Accepted Answer · 2020-01-21 10:26:22Z

-1

You should check for any break point in your function.

answered Jan 21, 2020 at 10:26

Parth Bhavsar

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