serverless framework with aws import function returns 404 - serverless

Question

I have two serverless app which are sharing the same custom authorizer. Suddenly the import function in the second serverless.yml file stopped working.
The app is based on https://github.com/medwig/serverless-shared-authorizer
gateway.serverless
service: authorizer-stack
provider:
name: aws
runtime: nodejs12.x
region: ap-south-1
profile: xxx-dev
functions:
authorizer:
handler: handler.auth
test:
handler: handler.privateEndpoint
events:
- http:
path: /api/test
method: get
authorizer:
type: CUSTOM
authorizerId:
Ref: Authorizer
test2:
handler: handler.publicEndpoint
events:
- http:
path: /api/test/public
method: get
resources:
Resources:
AuthorizerPermission:
Type: AWS::Lambda::Permission
Properties:
FunctionName:
Fn::GetAtt: AuthorizerLambdaFunction.Arn
Action: lambda:InvokeFunction
Principal:
Fn::Join: ["",["apigateway.", { Ref: "AWS::URLSuffix"}]]
Authorizer:
DependsOn:
- ApiGatewayRestApi
Type: AWS::ApiGateway::Authorizer
Properties:
Name: ${self:provider.stage}-Authorizer
RestApiId: { "Ref" : "ApiGatewayRestApi" }
Type: TOKEN
IdentitySource: method.request.header.Authorization
AuthorizerResultTtlInSeconds: 300
AuthorizerUri:
Fn::Join:
- ''
-
- 'arn:aws:apigateway:'
- Ref: "AWS::Region"
- ':lambda:path/2015-03-31/functions/'
- Fn::GetAtt: "AuthorizerLambdaFunction.Arn"
- "/invocations"
Outputs:
AuthorizerId:
Value:
Ref: Authorizer
Export:
Name: authorizerId
apiGatewayRestApiId:
Value:
Ref: ApiGatewayRestApi
Export:
Name: restApiId
apiGatewayRestApiRootResourceId:
Value:
Fn::GetAtt:
- ApiGatewayRestApi
- RootResourceId
Export:
Name: rootResourceId
products serverless
service: products-list
provider:
name: aws
runtime: nodejs12.x
region: ap-south-1
profile: xxx-dev
apiGateway:
restApiId:
Fn::ImportValue: authorizer-stack-dev-restApiId
restApiRootResourceId:
Fn::ImportValue: authorizer-stack-dev-rootResourceId
functions:
get-products:
handler: handler.getProducts
events:
- http:
path: /api/products
method: get
authorizer:
type: CUSTOM
authorizerId:
Fn::ImportValue: authorizer-stack-dev-authorizerId
I am getting the following errors at random
An error occurred: products-list-dev - No export named authorizer-stack-dev-restApiId found.
An error occurred: products-list-dev - No export named authorizer-stack-dev-rootResourceId found.
An error occurred: products-list-dev - No export named authorizer-stack-dev-authorizerId found.
What am I missing here?
serverless -v
Framework Core: 1.74.1
Plugin: 3.6.15
SDK: 2.3.1
Components: 2.31.10

Answer 1

From the shared authorizers I have configured in the past it is not necessary to go to the effort you have undergone. The documentation on the Serverless Framework site has a much simpler setup to achieve a shared authoriser and I will always go with the simplest solution possible: https://www.serverless.com/framework/docs/providers/aws/events/apigateway#share-authorizer