uri for aws_api_gateway_integration for type AWS (integration) to DynamoDb

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I am creating infrastructure with terraform with API Gateway connecting to DynamoDb API. I am creating resource aws_api_gateway_integration to define the integration with DynamoDb with type attribute set as AWS.

But somehow i am unable to get the uri value right for db.

Documentation says it should be of format arn:aws:apigateway:{region}:{subdomain.service|service}:{path|action}/{service_api}.

Current value configured is arn:aws:apigateway:us-east-1:dynamodb:GetItem.

I am not sure what is service_api. Did anyone encounter this before? Kindly help.

amazon-dynamodb terraform aws-sdk amazon-web-services
1 Answers

This also took me some time to figure out, I think the DynamoDB API-Gateway Integration deserves a dedicated example in the Terraform docs similar to Lambda. Actually service_api just refers to the DynamoDB Action (which you would also enter in the AWS Api Gateway Console Action field) prefixed with the literal action/. So the following block eventually worked for my PUT request mapping:

resource "aws_api_gateway_integration" "my-integration" {
  type = "AWS"
  integration_http_method = "POST"
  uri = "arn:aws:apigateway:eu-central-1:dynamodb:action/PutItem"
  # (...)
}
user_42920750
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