{
    "openapi": "3.0.0",
    "info": {
        "title": "AWSMetricsServiceApi",
        "description": "Service API for the data analytics pipeline defined by the AWS Metrics Gem",
        "version": "1.0.0"
    },
    "x-amazon-apigateway-request-validators": {
      "all": {
         "validateRequestBody": true,
         "validateRequestParameters": true
      }
    },
    "x-amazon-apigateway-request-validator": "all",
    "paths": {
        "/producer/events": {
            "post": {
                "x-amazon-apigateway-auth": {
                  "type": "AWS_IAM"
                },
                "x-amazon-apigateway-integration": {
                    "credentials": "${ApiGatewayRoleArn}",
                    "uri": "arn:${AWS::Partition}:apigateway:${AWS::Region}:kinesis:action/PutRecords",
                    "httpMethod": "POST",
                    "responses": {
                        "200": {
                            "statusCode": "200",
                            "responseTemplates": {
                                "application/json": "#set($response = $input.path('$'))\n#set($records = $input.json('$.Records'))\n{\n    \"result\": {\n       \"total\": $response.Records.size(),\n       \"failed_record_count\": $input.json('$.FailedRecordCount'),\n       \"events\": [\n           #foreach($record in $response.Records)\n               #if($record.ErrorCode != $null)\n               {\n                   \"result\": \"Error\", \n                   \"error_code\": \"$record.ErrorCode\"\n               }\n               #else\n               {\n                   \"result\": \"Ok\"\n               }\n               #end\n               #if($foreach.hasNext),#end\n           #end\n       ]\n    }\n}\n"
                            }
                        },
                        "4\\d{2}": {
                            "statusCode": "400",
                            "responseTemplates": {
                                "application/json": "#set($inputRoot = $input.path('$'))\n{\n   \"type\": \"BadRequest\",\n   \"message\": $input.json('$.message')\n}\n"
                            }
                        },
                        "5\\d{2}": {
                            "statusCode": "500",
                            "responseTemplates": {
                                "application/json": "#set($inputRoot = $input.path('$'))\n{\n   \"type\": $input.json('$.__type'),\n   \"message\": $input.json('$.message')\n}\n"
                            }
                        }
                    },
                    "requestParameters": {
                        "integration.request.header.Content-Type": "'x-amz-json-1.1'"
                    },
                    "requestTemplates": {
                        "application/json": "{\n   \"StreamName\": \"${InputStreamName}\",\n   \"Records\": [\n       #set($i = 0)\n       #foreach($event in $input.path('$.events'))\n           #set($data = $input.json(\"$.events[$i]\"))\n           {\n               \"Data\": \"$util.base64Encode($data)\",\n               \"PartitionKey\": \"$event.application_id\"\n           }#if($foreach.hasNext),#end\n           #set($i = $i + 1)\n       #end\n   ]\n}\n"
                    },
                    "passthroughBehavior": "never",
                    "type": "aws"
                },
                "operationId": "SendEvents",
                "requestBody": {
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/MetricsEventsBatchSchema"
                            }
                        }
                    },
                    "required": true
                },
                "responses": {
                    "200": {
                        "description": "Successful POST /producer/events",
                        "content": {
                            "application/json": {
                                "schema": {
                                    "$ref": "#/components/schemas/MetricsEventSuccessResponse"
                                }
                            }
                        }
                    },
                    "400": {
                        "description": "Bad Request Exception",
                        "content": {
                            "application/json": {
                                "schema": {
                                    "$ref": "#/components/schemas/Error"
                                }
                            }
                        }
                    },
                    "401": {
                        "description": "Unauthorized Exception",
                        "content": {
                            "application/json": {
                                "schema": {
                                    "$ref": "#/components/schemas/Error"
                                }
                            }
                        }
                    },
                    "500": {
                        "description": "Internal Server Error",
                        "content": {
                            "application/json": {
                                "schema": {
                                    "$ref": "#/components/schemas/Error"
                                }
                            }
                        }
                    }
                }
            }
        }
    },
    "components": {
        "schemas": {
            "Error": {
                "type": "object",
                "properties": {
                    "message": {
                        "type": "string",
                        "description": "Error message"
                    },
                    "type": {
                        "type": "string",
                        "description": "Error code from the API"
                    }
                }
            },
            "MetricsEventsBatchSchema": {
                "title": "Batched Metrics Events Schema",
                "required": [
                    "events"
                ],
                "type": "object",
                "properties": {
                    "events": {
                        "type": "array",
                        "items": {
                            "$ref": "#/components/schemas/MetricsEventSchema"
                        }
                    }
                }
            },
            "MetricsEventSchema": {
                "type": "object",
                "title": "AWSMetrics API Event Schema",
                "description": "Metrics Event sent to the service API",
                "required": [
                    "application_id",
                    "event_id",
                    "event_name",
                    "event_timestamp"
                ],
                "properties": {
                    "application_id": {
                        "type": "string",
                        "pattern": "^[0-9-.]+-\\{[0-9A-F]{8}-[0-9A-F]{4}-[1-5][0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}\\}$",
                        "description": "Identifier for the application that generated the event"
                    },
                    "event_id": {
                        "type": "string",
                        "pattern": "^\\{[0-9A-F]{8}-[0-9A-F]{4}-[1-5][0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}\\}$",
                        "description": "A random UUID that uniquely identifies an event."
                    },
                    "event_name": {
                        "type": "string",
                        "pattern": "^[A-Za-z0-9-_.]+$",
                        "description": "Name of the event that occurred"
                    },
                    "event_timestamp": {
                        "type": "string",
                        "pattern": "^(\\d{4})-(\\d{2})-(\\d{2})T(\\d{2})\\:(\\d{2})\\:(\\d{2})Z$",
                        "description": "The time in seconds since the Unix epoch at which this event occurred (set by producer of event)."
                    },
                    "event_type": {
                        "type": "string",
                        "pattern": "^[A-Za-z0-9-_.]+$",
                        "description": "Identifies the type of event"
                    },
                    "event_version": {
                        "type": "string",
                        "pattern": "^[A-Za-z0-9-_.]+$",
                        "description": "An API version for this event format."
                    },
                    "event_data": {
                        "type": "object",
                        "description": "Custom metrics attributes defined by this event."
                    }
                }
            },
            "MetricsEventSuccessResponse": {
                "title": "Metrics Event Success Response Schema",
                "type": "object",
                "properties": {
                    "failed_record_count": {
                        "type": "number",
                        "description": "Number of events that failed to be saved to metrics events stream"
                    },
                    "events": {
                        "type": "array",
                        "items": {
                            "$ref": "#/components/schemas/MetricsEventSuccessResponseRecord"
                        }
                    },
                    "total": {
                        "type": "number",
                        "description": "Total number of events that were processed in the request"
                    }
                }
            },
            "MetricsEventSuccessResponseRecord": {
                "type": "object",
                "properties": {
                    "error_code": {
                        "type": "string",
                        "description": "The error code from the metrics events stream. Value set if Result is Error"
                    },
                    "result": {
                        "type": "string",
                        "description": "Processing result for the input record"
                    }
                }
            }
        }
    }
}