example-serverless.yml

serverless.yml

service: random-name

provider:
  name: aws
  runtime: nodejs12.x
  stage: dev
  environment:
    usersTableName: ${self:custom.myEnvironment.usersTableName.${self:custom.myStage}}  # This I used in my code as process.env.usersTablename
    projectsTableName: ${self:custom.myEnvironment.projectsTableName.${self:custom.myStage}}

plugins:
  - serverless-s3-sync
  - serverless-offline
  - serverless-dynamodb-local
  - serverless-plugin-scripts
  - serverless-webpack

package:
  individually: true

# Here I create multiple environments for dev & prod. After deploy to AWS it works fine having users-dev and users-prod
custom:
  myStage: ${opt:stage, self:provider.stage}
  myEnvironment:
    usersTableName:
      dev: users-dev
      prod: users-prod
    projectsTableName:
      dev: projects-dev
      prod: projects-prod

functions:
  getUser:
    handler: functions/endpoints/Users/getUser.handler
    events:
      - http:
          path: get-user/{Id}
          method: GET
          cors: true
          #private: true
          
resources:
  Resources:
    UsersDynamoDBTable:
      Type: AWS::DynamoDB::Table
      Properties:
        TableName: ${self:custom.myEnvironment.usersTableName.${self:custom.myStage}}
        
    ProjectsDynamoDBTable:
      Type: AWS::DynamoDB::Table
      Properties:
        TableName: ${self:custom.myEnvironment.projectsTableName.${self:custom.myStage}}
        
# And for the test I run something like this "projectsTableName=projects-dev jest" 
# with no luck saying "ResourceNotFoundException: Cannot do operations on a non-existent table"
# For some reason "usersTableName=users jest" it works!