apps/protoc-gen-openapi/examples/tests/mapfields/openapi.yaml

# Generated with protoc-gen-openapi
# https://github.com/googleapis/gnostic/tree/master/apps/protoc-gen-openapi

openapi: 3.0.3
info:
    title: Messaging
    version: 0.0.1
paths:
    /v1/messages/{message_id}:
        patch:
            operationId: Messaging_UpdateMessage
            requestBody:
                content:
                    application/json:
                        schema:
                            $ref: '#/components/schemas/Message'
                required: true
            responses:
                "200":
                    description: OK
                    content:
                        application/json:
                            schema:
                                $ref: '#/components/schemas/Message'
components:
    schemas:
        Message:
            properties:
                message_id:
                    type: string
                labels:
                    type: object