{
  "version": "2.0",
  "metadata": {
    "apiVersion": "2012-08-10",
    "endpointPrefix": "streams.dynamodb",
    "jsonVersion": "1.0",
    "protocol": "json",
    "serviceFullName": "Amazon DynamoDB Streams",
    "signatureVersion": "v4",
    "signingName": "dynamodb",
    "targetPrefix": "DynamoDBStreams_20120810",
    "uid": "streams-dynamodb-2012-08-10"
  },
  "operations": {
    "DescribeStream": {
      "input": {
        "type": "structure",
        "required": [
          "StreamArn"
        ],
        "members": {
          "StreamArn": {},
          "Limit": {
            "type": "integer"
          },
          "ExclusiveStartShardId": {}
        }
      },
      "output": {
        "type": "structure",
        "members": {
          "StreamDescription": {
            "type": "structure",
            "members": {
              "StreamArn": {},
              "StreamLabel": {},
              "StreamStatus": {},
              "StreamViewType": {},
              "CreationRequestDateTime": {
                "type": "timestamp"
              },
              "TableName": {},
              "KeySchema": {
                "type": "list",
                "member": {
                  "type": "structure",
                  "required": [
                    "AttributeName",
                    "KeyType"
                  ],
                  "members": {
                    "AttributeName": {},
                    "KeyType": {}
                  }
                }
              },
              "Shards": {
                "type": "list",
                "member": {
                  "type": "structure",
                  "members": {
                    "ShardId": {},
                    "SequenceNumberRange": {
                      "type": "structure",
                      "members": {
                        "StartingSequenceNumber": {},
                        "EndingSequenceNumber": {}
                      }
                    },
                    "ParentShardId": {}
                  }
                }
              },
              "LastEvaluatedShardId": {}
            }
          }
        }
      }
    },
    "GetRecords": {
      "input": {
        "type": "structure",
        "required": [
          "ShardIterator"
        ],
        "members": {
          "ShardIterator": {},
          "Limit": {
            "type": "integer"
          }
        }
      },
      "output": {
        "type": "structure",
        "members": {
          "Records": {
            "type": "list",
            "member": {
              "type": "structure",
              "members": {
                "eventID": {},
                "eventName": {},
                "eventVersion": {},
                "eventSource": {},
                "awsRegion": {},
                "dynamodb": {
                  "type": "structure",
                  "members": {
                    "ApproximateCreationDateTime": {
                      "type": "timestamp"
                    },
                    "Keys": {
                      "shape": "Sr"
                    },
                    "NewImage": {
                      "shape": "Sr"
                    },
                    "OldImage": {
                      "shape": "Sr"
                    },
                    "SequenceNumber": {},
                    "SizeBytes": {
                      "type": "long"
                    },
                    "StreamViewType": {}
                  }
                },
                "userIdentity": {
                  "type": "structure",
                  "members": {
                    "PrincipalId": {},
                    "Type": {}
                  }
                }
              }
            }
          },
          "NextShardIterator": {}
        }
      }
    },
    "GetShardIterator": {
      "input": {
        "type": "structure",
        "required": [
          "StreamArn",
          "ShardId",
          "ShardIteratorType"
        ],
        "members": {
          "StreamArn": {},
          "ShardId": {},
          "ShardIteratorType": {},
          "SequenceNumber": {}
        }
      },
      "output": {
        "type": "structure",
        "members": {
          "ShardIterator": {}
        }
      }
    },
    "ListStreams": {
      "input": {
        "type": "structure",
        "members": {
          "TableName": {},
          "Limit": {
            "type": "integer"
          },
          "ExclusiveStartStreamArn": {}
        }
      },
      "output": {
        "type": "structure",
        "members": {
          "Streams": {
            "type": "list",
            "member": {
              "type": "structure",
              "members": {
                "StreamArn": {},
                "TableName": {},
                "StreamLabel": {}
              }
            }
          },
          "LastEvaluatedStreamArn": {}
        }
      }
    }
  },
  "shapes": {
    "Sr": {
      "type": "map",
      "key": {},
      "value": {
        "shape": "St"
      }
    },
    "St": {
      "type": "structure",
      "members": {
        "S": {},
        "N": {},
        "B": {
          "type": "blob"
        },
        "SS": {
          "type": "list",
          "member": {}
        },
        "NS": {
          "type": "list",
          "member": {}
        },
        "BS": {
          "type": "list",
          "member": {
            "type": "blob"
          }
        },
        "M": {
          "type": "map",
          "key": {},
          "value": {
            "shape": "St"
          }
        },
        "L": {
          "type": "list",
          "member": {
            "shape": "St"
          }
        },
        "NULL": {
          "type": "boolean"
        },
        "BOOL": {
          "type": "boolean"
        }
      }
    }
  }
}