Serverless create snspolicy fails with invalid parameter - amazon-web-services

Question

Here is the error.
An error occurred: SNSTopicPolicy - Invalid parameter:
Policy Error: null (Service: AmazonSNS;
Status Code: 400; Error Code: InvalidParameter;
Request ID: 38a567df-2cff-50bf-8f0e-33a91775cc6e).
I cannot find a place to look into logs to tell me what parameter is missing.?.? I'm pretty sure I have everything that is required. I'm using this site and their api pages.
SNSTopic:
Type: AWS::SNS::Topic
Properties:
DisplayName: Aura main Topic
TopicName: ${file(./env.yml):${opt:stage, self:provider.stage}.env.auraSnsTopicName}
SNSTopicPolicy:
Type: AWS::SNS::TopicPolicy
Properties:
PolicyDocument:
Id: auraAllowSQSsendrobelrobel
Statement:
-
Effect: Allow
Action:
- sns: Publish
Resource: { "Fn::GetAtt":["SQSQueue" ,"Arn"]}
Principle:
AWS: "*"
Topics:
- { "Ref": "SNSTopic" }
SQSQueue:
Type: AWS::SQS::Queue
Properties:
QueueName: ${file(./env.yml):${opt:stage, self:provider.stage}.env.eeegPagesQueueName}
RedrivePolicy:
deadLetterTargetArn: {"Fn::GetAtt" : [ "SQSQueueDLQ", "Arn" ]}
maxReceiveCount: 2
SQSQueuePolicy:
Type: AWS::SQS::QueuePolicy
Properties:
PolicyDocument:
Id: allowSNSSourceAndLambdaTrigger
Statement:
-
Effect: Allow
Action:
- SQS:ReceiveMessage
- SQS:SendMessage
- SQS:ChangeMessageVisibility
- SQS:ListDeadLetterSourceQueues
- SQS:GetQueueUrl
# - lambda:CreateEventSourceMapping
# - lambda:ListEventSourceMappings
# - lambda:ListFunction
Resource: {"Ref": "SNSTopic"}
Queues:
- { "Ref": "SQSQueue" }
I have an SQS Policy statement that is working just fine.
Your Environment Information ----------------------------
OS: Mac darwin
Node Version: 8.12.0
Serverless Version: 1.32.0

Answer 1

Turns out you need spelling is important and also the AWS sub object was not needed.
Principal: "*"
Working Policy below:
SNSTopicPolicy:
Type: AWS::SNS::TopicPolicy
Properties:
PolicyDocument:
Statement:
- Sid: auraAllowSQSPublish
Effect: Allow
Principal: "*"
Action: "sns:Publish"
Resource: { "Ref": "SNSTopic" }
Topics:
- { "Ref": "SNSTopic" }