Apollo server 3 does not work with serverless offline

[Krishantha]

Apollo server 3 with AWS lambda (apollo-server-lambda) does not compatible with serverless offline plugin.

const server = new ApolloServer({
  plugins: [ApolloServerPluginLandingPageGraphQLPlayground()],
  typeDefs: typeDefs,
  resolvers: resolvers,
  introspection: true,
});

its starts fine.

Serverless: Running "serverless" installed locally (in service node_modules)
offline: Starting Offline: dev/ap-southeast-1.
offline: Offline [http for lambda] listening on http://localhost:3002
offline: Function names exposed for local invocation by aws-sdk:
           * employee: aws-apollo-demo-dev-employee

   ┌────────────────────────────────────────────────────────────────────────────┐
   │                                                                            │
   │   POST | http://localhost:3000/dev                                         │
   │   POST | http://localhost:3000/2015-03-31/functions/employee/invocations   │
   │   GET  | http://localhost:3000/dev                                         │
   │   POST | http://localhost:3000/2015-03-31/functions/employee/invocations   │
   │                                                                            │
   └────────────────────────────────────────────────────────────────────────────┘

offline: [HTTP] server ready: http://localhost:3000 🚀
offline: 
offline: Enter "rp" to replay the last request

but when query it gives an error.

current

Cannot POST null

expected

should return result and / should show playground as it does on apollo-server-lambda 2.x.x

how ever if I downgrade to apollo-server-lambda 2.x.x everything works fine with serverless offline.

also this works when deployed to aws.

how we can get this works with sls offline.

[glasser]

Hi! I know we document how to use serverless but I'm not familiar with the offline plugin. In order to reproduce the issue, I'd like to have to apply any creativity. Are you able to provide a full reproduction (eg, starting with git clone) that includes all of the files relevant (including however you enable offline) so we can see it ourselves in exactly the same way you see it? Happy to reopen if a full reproduction is included.

[UncleGrim]

Made an account for anyone else that stumbles upon this.

The problem with serverless-offline and Apollo3 is the default url property has changed.

See this post

To validate try issuing requests against the /graphql URI, this worked for me.

Edit: Upon further inspection it looks like any route that isn't the root /dev/ works. Curious...