Serverless Framework, setting up rest api lambda - aws-lambda

Question

I wanted to make a lambda available at dev-api.example.com/auth/*.
The lambda will act like an auth service. So it will have urls like
dev-api.example.com/auth/register
dev-api.example.com/auth/login
and more ...
Like wise more lambdas will be hooked to single ApiGateway.
With that design decision, I wrote following serverless.yml file.
// serverless.yml
...
custom:
customDomain:
domainName: dev-api.example.com
stage: prod
basePath: ''
...
functions:
auth:
handler: src/index.handler
events:
- http:
method: ANY
path: /{auth+}
It does not seem to work. Whenever I visit dev-api.example.com/auth/register it returns Not Found error.

Answer 1

AWS API Gateway only accepts {proxy+} syntax (Link), then I think serverless fw just support {proxy+} and {any+}.
If you want to just create a function to handle 2 api endpoint, in this case, the endpoints are
POST /auth/register (I think so)
POST /auth/login
Then you have setting in serverless.yml like
...
functions:
auth:
handler: src/index.handler
events:
- http:
method: ANY
path: auth/{any+} # this matches any path, the token 'any' doesn't mean anything special
...

Answer 2

Thanks #hoangdv , your suggestion almost fixed the problem.
The issue was with path. It should have been path: auth/{proxy+} instead of path: /{auth+}
functions:
auth:
handler: src/index.handler
events:
- http:
method: ANY
path: auth/{proxy+}