[apollo-server-lambda] Unable to determine event source based on event

[electerious]

I've recently upgrade from apollo-server-lambda v2.25.1 to v3.6.1 following the migration guide. Since then I'm getting the following error when sending requests to the GraphQL Endpoint that is hosted on Vercel.

[POST] /api
19:28:08:34
2022-01-09T18:28:10.719Z	2014d7ba-295d-4344-a94a-007608d4788b	ERROR	Invoke Error 	{"errorType":"Error","errorMessage":"Unable to determine event source based on event.","stack":["Error: Unable to determine event source based on event.","    at getEventSourceNameBasedOnEvent (/var/task/node_modules/@vendia/serverless-express/src/event-sources/utils.js:88:9)","    at proxy (/var/task/node_modules/@vendia/serverless-express/src/configure.js:38:51)","    at handler (/var/task/node_modules/@vendia/serverless-express/src/configure.js:99:12)","    at Object.handler (/var/task/node_modules/apollo-server-lambda/dist/ApolloServer.js:51:27)"]}

How I'm creating the apollo server:
https://github.com/electerious/Ackee/blob/develop/src/utils/createApolloServer.js
https://github.com/electerious/Ackee/blob/develop/src/serverless.js#L16

How I'm creating the handler:
https://github.com/electerious/Ackee/blob/develop/src/serverless.js#L30

Related:
CodeGenieApp/serverless-express#416

[glasser]

apollo-server-lambda is designed to be run on Lambda. Vercel is not Lambda, so I would not expect this to work. Does vercel have some sort of Lambda-compatible emulation environment?

In any case, if this is an environment that can be supported, the proper way to do this is in @vendia/serverless-express as you've found above. Apollo Server is no longer in the business of understanding the various Lambda HTTP hosting environments and formats at a deep level.

[electerious]

Found a solution: https://stackoverflow.com/a/71629935/207704