{
  "openapi": "3.0.3",
  "info": {
    "title": "Petstore",
    "version": "1.0.0",
    "description": "A minimal Petstore API for testing."
  },
  "security": [
    { "api_key": [] }
  ],
  "tags": [
    { "name": "pets", "description": "Pet operations" },
    { "name": "store", "description": "Store operations" }
  ],
  "paths": {
    "/pets": {
      "get": {
        "operationId": "listPets",
        "summary": "List all pets",
        "tags": ["pets"],
        "parameters": [
          {
            "name": "limit",
            "in": "query",
            "required": false,
            "description": "Maximum number of items to return"
          },
          {
            "name": "offset",
            "in": "query",
            "required": false,
            "description": "Pagination offset"
          }
        ],
        "responses": {
          "200": {
            "description": "A list of pets",
            "content": {
              "application/json": {
                "schema": {
                  "type": "array",
                  "items": { "$ref": "#/components/schemas/Pet" }
                }
              }
            }
          }
        }
      },
      "post": {
        "operationId": "createPet",
        "summary": "Create a pet",
        "tags": ["pets"],
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": { "$ref": "#/components/schemas/NewPet" }
            }
          }
        },
        "responses": {
          "201": {
            "description": "Pet created",
            "content": {
              "application/json": {
                "schema": { "$ref": "#/components/schemas/Pet" }
              }
            }
          }
        }
      }
    },
    "/pets/{petId}": {
      "parameters": [
        {
          "name": "petId",
          "in": "path",
          "required": true,
          "description": "The ID of the pet"
        }
      ],
      "get": {
        "operationId": "showPetById",
        "summary": "Get a pet by ID",
        "tags": ["pets"],
        "responses": {
          "200": {
            "description": "A single pet",
            "content": {
              "application/json": {
                "schema": { "$ref": "#/components/schemas/Pet" }
              }
            }
          },
          "404": {
            "description": "Pet not found",
            "content": {
              "application/json": {
                "schema": { "$ref": "#/components/schemas/Error" }
              }
            }
          }
        }
      },
      "delete": {
        "operationId": "deletePet",
        "summary": "Delete a pet",
        "tags": ["pets"],
        "deprecated": true,
        "responses": {
          "204": { "description": "Pet deleted" }
        }
      }
    },
    "/store/inventory": {
      "get": {
        "operationId": "getInventory",
        "summary": "Get store inventory",
        "tags": ["store"],
        "security": [],
        "responses": {
          "200": {
            "description": "Inventory counts",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "additionalProperties": { "type": "integer" }
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "Pet": {
        "type": "object",
        "required": ["id", "name"],
        "properties": {
          "id": { "type": "integer", "format": "int64" },
          "name": { "type": "string" },
          "tag": { "type": "string" }
        }
      },
      "NewPet": {
        "type": "object",
        "required": ["name"],
        "properties": {
          "name": { "type": "string" },
          "tag": { "type": "string" }
        }
      },
      "Error": {
        "type": "object",
        "required": ["code", "message"],
        "properties": {
          "code": { "type": "integer", "format": "int32" },
          "message": { "type": "string" }
        }
      }
    },
    "securitySchemes": {
      "api_key": {
        "type": "apiKey",
        "name": "X-API-Key",
        "in": "header"
      }
    }
  }
}