Creating a schema from event JSON in Amazon EventBridge

To create a schema based on the JSON of an event

1. Open the Amazon EventBridge console at https://console.aws.amazon.com/events/.

2. In the navigation pane, choose Schemas and then choose Create schema.

3. (Optional) Select or create a schema registry.

4. Under Schema details enter a name for your schema.

5. (Optional) Enter a description for the schema you created.

6. For Schema type, choose OpenAPI 3.0.

   You can't use JSONSchema when you create a schema from the JSON of an event.

7. Select Discover from JSON

8. In the text box under JSON, paste or drag the JSON source of an event.

   For example, you could paste in the source from this AWS Step Functions event for a failed execution.

   {
       "version": "0",
       "id": "315c1398-40ff-a850-213b-158f73e60175",
       "detail-type": "Step Functions Execution Status Change",
       "source": "aws.states",
       "account": "012345678912",
       "time": "2019-02-26T19:42:21Z",
       "region": "us-east-1",
       "resources": [
         "arn:aws:states:us-east-1:012345678912:execution:state-machine-name:execution-name"
       ],
       "detail": {
           "executionArn": "arn:aws:states:us-east-1:012345678912:execution:state-machine-name:execution-name",
           "stateMachineArn": "arn:aws:states:us-east-1:012345678912:stateMachine:state-machine",
           "name": "execution-name",
           "status": "FAILED",
           "startDate": 1551225146847,
           "stopDate": 1551225151881,
           "input": "{}",
           "output": null
       }
   }

9. Choose Discover schema.

10. EventBridge generates an OpenAPI schema for the event. For example, the following schema is generated for the preceding Step Functions event.

    {
      "openapi": "3.0.0",
      "info": {
        "version": "1.0.0",
        "title": "StepFunctionsExecutionStatusChange"
      },
      "paths": {},
      "components": {
        "schemas": {
          "AWSEvent": {
            "type": "object",
            "required": ["detail-type", "resources", "detail", "id", "source", "time", "region", "version", "account"],
            "x-amazon-events-detail-type": "Step Functions Execution Status Change",
            "x-amazon-events-source": "aws.states",
            "properties": {
              "detail": {
                "$ref": "#/components/schemas/StepFunctionsExecutionStatusChange"
              },
              "account": {
                "type": "string"
              },
              "detail-type": {
                "type": "string"
              },
              "id": {
                "type": "string"
              },
              "region": {
                "type": "string"
              },
              "resources": {
                "type": "array",
                "items": {
                  "type": "string"
                }
              },
              "source": {
                "type": "string"
              },
              "time": {
                "type": "string",
                "format": "date-time"
              },
              "version": {
                "type": "string"
              }
            }
          },
          "StepFunctionsExecutionStatusChange": {
            "type": "object",
            "required": ["output", "input", "executionArn", "name", "stateMachineArn", "startDate", "stopDate", "status"],
            "properties": {
              "executionArn": {
                "type": "string"
              },
              "input": {
                "type": "string"
              },
              "name": {
                "type": "string"
              },
              "output": {},
              "startDate": {
                "type": "integer",
                "format": "int64"
              },
              "stateMachineArn": {
                "type": "string"
              },
              "status": {
                "type": "string"
              },
              "stopDate": {
                "type": "integer",
                "format": "int64"
              }
            }
          }
        }
      }
    }

11. After the schema has been generated, choose Create.