serverless.yml

service:
  name: fsl-blog-api-gateway-uploads

provider:
  name: aws
  runtime: nodejs12.x
  httpApi:
    payload: '2.0'
    cors: true
  iamRoleStatements:
    # our functions need to interact with objects in the uploads bucket
    - Effect: Allow
      Action:
        - s3:ListBucket
        - s3:GetObject
        - s3:PutObject
        - s3:DeleteObject
      Resource:
        - {'Fn::Join': ['', ['arn:aws:s3:::', {Ref: 'UploadsBucket'}]]}
        - {'Fn::Join': ['', ['arn:aws:s3:::', {Ref: 'UploadsBucket'}, '/*']]}
  environment:
    UPLOADS_BUCKET: {Ref: 'UploadsBucket'}

functions:
  - ${file(examples/signed-putobject/serverless.yml):functions}

resources:
  Resources:
    # the S3 bucket where we want our uploaded files to end up
    UploadsBucket:
      Type: AWS::S3::Bucket
      Properties:
        # this CORS policy is needed for direct uploads from browsers
        CorsConfiguration:
          CorsRules:
            - AllowedOrigins: [ '*' ]
              AllowedMethods: [ GET, HEAD, PUT, POST ]
              AllowedHeaders: [ 'Content-Type' ]
  Outputs:
    UploadsBucketName:
      Value: {Ref: 'UploadsBucket'}