{
  "openapi": "3.1.0",
  "info": {
    "title": "Dehradun Tourism Public REST API (dehradun1.vercel.app)",
    "description": "Comprehensive REST API for Dehradun tourism, destinations, cultural heritage, nature spots, spiritual landmarks, and real-time visitor metrics. Hosted on Vercel with RateLimit headers, URI path versioning (/v1/), and strict deprecation policies.",
    "version": "1.0.0",
    "x-api-version": "1.0.0",
    "x-versioning-policy": {
      "type": "URI Path Versioning",
      "current_version": "v1",
      "supported_versions": ["v1"],
      "deprecation_policy_url": "https://dehradun1.vercel.app/deprecation",
      "sunset_timeline_months": 12,
      "headers": ["Deprecation", "Sunset", "Link", "API-Version"]
    },
    "x-deprecation-policy": {
      "policy": "12-month minimum notice before any version sunset",
      "notice_method": "Sunset and Deprecation HTTP headers and Link header rel=deprecation",
      "documentation": "https://dehradun1.vercel.app/deprecation"
    },
    "termsOfService": "https://dehradun1.vercel.app/privacy",
    "contact": {
      "name": "Akash Priyadarshi",
      "url": "https://github.com/AkashPriyadarshii/dehraduntourism",
      "email": "contact@dehradun1.vercel.app"
    },
    "license": {
      "name": "MIT",
      "url": "https://opensource.org/licenses/MIT"
    }
  },
  "servers": [
    {
      "url": "https://dehradun1.vercel.app/api/v1",
      "description": "Production API v1 Endpoint"
    },
    {
      "url": "https://dehradun1.vercel.app/api",
      "description": "Production Root Endpoint"
    },
    {
      "url": "https://dehradun1.vercel.app",
      "description": "Base Server URL"
    }
  ],
  "tags": [
    {
      "name": "Tourism Places",
      "description": "Attractions, temples, natural spots, and heritage sites in Dehradun"
    },
    {
      "name": "Discovery",
      "description": "API metadata, documentation, and directory"
    },
    {
      "name": "Analytics",
      "description": "Visitor view metrics and traffic counter"
    },
    {
      "name": "Governance",
      "description": "API versioning, lifecycle, and deprecation policies"
    }
  ],
  "paths": {
    "/api/v1": {
      "get": {
        "tags": ["Discovery"],
        "summary": "API Root & Service Discovery",
        "description": "Returns metadata about available API endpoints, versioning policy, documentation URLs, and service status.",
        "operationId": "getApiRoot",
        "responses": {
          "200": {
            "description": "API root directory and operational metadata",
            "headers": {
              "RateLimit-Limit": {
                "description": "Quota limit per minute window",
                "schema": { "type": "integer", "example": 100 }
              },
              "RateLimit-Remaining": {
                "description": "Remaining requests in current window",
                "schema": { "type": "integer", "example": 99 }
              },
              "RateLimit-Reset": {
                "description": "Seconds until quota window resets",
                "schema": { "type": "integer", "example": 60 }
              },
              "API-Version": {
                "description": "Current API version",
                "schema": { "type": "string", "example": "1.0.0" }
              }
            },
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ApiDirectoryResponse"
                }
              }
            }
          }
        }
      }
    },
    "/api/v1/places": {
      "get": {
        "tags": ["Tourism Places"],
        "summary": "List and filter tourist attractions in Dehradun",
        "description": "Retrieve a list of tourist destinations, historic landmarks, nature reserves, and monasteries in Dehradun with optional filtering by category or text search.",
        "operationId": "listPlaces",
        "parameters": [
          {
            "name": "category",
            "in": "query",
            "required": false,
            "description": "Filter places by destination category type",
            "schema": {
              "type": "string",
              "enum": ["nature", "heritage", "spiritual", "institutional", "recreation"]
            }
          },
          {
            "name": "search",
            "in": "query",
            "required": false,
            "description": "Search keyword matching place name, description, or Hindi title",
            "schema": {
              "type": "string"
            }
          },
          {
            "name": "limit",
            "in": "query",
            "required": false,
            "description": "Maximum number of places to return (1-100)",
            "schema": {
              "type": "integer",
              "minimum": 1,
              "maximum": 100,
              "default": 50
            }
          },
          {
            "name": "offset",
            "in": "query",
            "required": false,
            "description": "Pagination offset",
            "schema": {
              "type": "integer",
              "minimum": 0,
              "default": 0
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Successfully retrieved list of places",
            "headers": {
              "RateLimit-Limit": {
                "description": "Quota limit per minute window",
                "schema": { "type": "integer", "example": 100 }
              },
              "RateLimit-Remaining": {
                "description": "Remaining requests in current window",
                "schema": { "type": "integer", "example": 99 }
              },
              "RateLimit-Reset": {
                "description": "Seconds until quota window resets",
                "schema": { "type": "integer", "example": 60 }
              },
              "API-Version": {
                "description": "Current API version",
                "schema": { "type": "string", "example": "1.0.0" }
              }
            },
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/PlacesListResponse"
                }
              }
            }
          },
          "400": {
            "description": "Invalid query parameters supplied",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ErrorResponse"
                }
              }
            }
          },
          "500": {
            "description": "Internal server error",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ErrorResponse"
                }
              }
            }
          }
        }
      }
    },
    "/api/v1/places/{id}": {
      "get": {
        "tags": ["Tourism Places"],
        "summary": "Get specific place details by ID or slug",
        "description": "Fetch detailed information for a single attraction in Dehradun by its slug (e.g., 'robbers-cave-guchhupani') or numeric index.",
        "operationId": "getPlaceById",
        "parameters": [
          {
            "name": "id",
            "in": "path",
            "required": true,
            "description": "The unique slug or index of the tourist place",
            "schema": {
              "type": "string"
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Place details found",
            "headers": {
              "RateLimit-Limit": {
                "description": "Quota limit per minute window",
                "schema": { "type": "integer", "example": 100 }
              },
              "RateLimit-Remaining": {
                "description": "Remaining requests in current window",
                "schema": { "type": "integer", "example": 99 }
              },
              "API-Version": {
                "description": "Current API version",
                "schema": { "type": "string", "example": "1.0.0" }
              }
            },
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/PlaceDetailResponse"
                }
              }
            }
          },
          "404": {
            "description": "Place not found",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ErrorResponse"
                }
              }
            }
          }
        }
      }
    },
    "/api/v1/views": {
      "get": {
        "tags": ["Analytics"],
        "summary": "Get site visitor traffic count",
        "description": "Retrieve the current visitor count metrics. Pass ?action=up to increment the count.",
        "operationId": "getViews",
        "parameters": [
          {
            "name": "action",
            "in": "query",
            "required": false,
            "description": "Set to 'up' or 'increment' to record a new page view",
            "schema": {
              "type": "string",
              "enum": ["up", "increment"]
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Current view count status",
            "headers": {
              "RateLimit-Limit": {
                "description": "Quota limit per minute window",
                "schema": { "type": "integer", "example": 100 }
              },
              "RateLimit-Remaining": {
                "description": "Remaining requests in current window",
                "schema": { "type": "integer", "example": 99 }
              },
              "API-Version": {
                "description": "Current API version",
                "schema": { "type": "string", "example": "1.0.0" }
              }
            },
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ViewCountResponse"
                }
              }
            }
          }
        }
      },
      "post": {
        "tags": ["Analytics"],
        "summary": "Increment visitor count",
        "description": "Increment the visitor counter via standard POST request.",
        "operationId": "incrementViews",
        "requestBody": {
          "description": "Optional metadata payload for incrementing views",
          "required": false,
          "content": {
            "application/json": {
              "schema": {
                "$ref": "#/components/schemas/IncrementViewsRequest"
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "View count successfully incremented",
            "headers": {
              "RateLimit-Limit": {
                "description": "Quota limit per minute window",
                "schema": { "type": "integer", "example": 100 }
              },
              "RateLimit-Remaining": {
                "description": "Remaining requests in current window",
                "schema": { "type": "integer", "example": 99 }
              },
              "API-Version": {
                "description": "Current API version",
                "schema": { "type": "string", "example": "1.0.0" }
              }
            },
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ViewCountResponse"
                }
              }
            }
          }
        }
      }
    },
    "/api/v1/deprecation": {
      "get": {
        "tags": ["Governance"],
        "summary": "Get API Versioning & Deprecation Policy",
        "description": "Retrieve the official versioning lifecycle, deprecation timeline guarantees, and HTTP header specifications for the Dehradun Tourism REST API.",
        "operationId": "getDeprecationPolicy",
        "responses": {
          "200": {
            "description": "API Versioning and Deprecation policy details",
            "headers": {
              "RateLimit-Limit": {
                "schema": { "type": "integer", "example": 100 }
              },
              "RateLimit-Remaining": {
                "schema": { "type": "integer", "example": 99 }
              },
              "API-Version": {
                "schema": { "type": "string", "example": "1.0.0" }
              }
            },
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/DeprecationPolicyResponse"
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "Place": {
        "type": "object",
        "required": ["id", "index", "name", "hindi", "description", "category", "distance", "entryFee", "bestTime", "lat", "lng", "image"],
        "properties": {
          "id": {
            "type": "string",
            "description": "URL-friendly unique slug for the place",
            "example": "robbers-cave-guchhupani"
          },
          "index": {
            "type": "integer",
            "description": "1-based order index",
            "example": 1
          },
          "name": {
            "type": "string",
            "description": "English name of the destination",
            "example": "Robber's Cave (Guchhupani)"
          },
          "hindi": {
            "type": "string",
            "description": "Hindi name in Devanagari script",
            "example": "गुच्चुपानी"
          },
          "description": {
            "type": "string",
            "description": "Detailed background, historical significance, and highlights",
            "example": "A 600m long natural river cave formation with a waterfall."
          },
          "distance": {
            "type": "string",
            "description": "Approximate distance from Dehradun city center",
            "example": "8 km from city center"
          },
          "entryFee": {
            "type": "string",
            "description": "Entry fee pricing or free access",
            "example": "₹25–50"
          },
          "bestTime": {
            "type": "string",
            "description": "Recommended season to visit",
            "example": "Summer"
          },
          "category": {
            "type": "string",
            "description": "Category of the attraction",
            "enum": ["nature", "heritage", "spiritual", "institutional", "recreation"],
            "example": "nature"
          },
          "lat": {
            "type": "number",
            "format": "double",
            "description": "Geographical latitude coordinate",
            "example": 30.3756
          },
          "lng": {
            "type": "number",
            "format": "double",
            "description": "Geographical longitude coordinate",
            "example": 78.0563
          },
          "image": {
            "type": "string",
            "format": "uri",
            "description": "Optimized photo URL",
            "example": "https://upload.wikimedia.org/wikipedia/commons/2/2e/Robber%27s_Cave_Dehradun.jpg"
          }
        }
      },
      "PlacesListResponse": {
        "type": "object",
        "required": ["total", "count", "offset", "limit", "places"],
        "properties": {
          "total": {
            "type": "integer",
            "description": "Total number of places matching criteria",
            "example": 17
          },
          "count": {
            "type": "integer",
            "description": "Number of places returned in current page",
            "example": 17
          },
          "offset": {
            "type": "integer",
            "description": "Current pagination offset",
            "example": 0
          },
          "limit": {
            "type": "integer",
            "description": "Requested limit per page",
            "example": 50
          },
          "places": {
            "type": "array",
            "description": "Array of place objects matching query",
            "items": {
              "$ref": "#/components/schemas/Place"
            }
          }
        }
      },
      "PlaceDetailResponse": {
        "type": "object",
        "required": ["place"],
        "properties": {
          "place": {
            "$ref": "#/components/schemas/Place"
          }
        }
      },
      "ViewCountResponse": {
        "type": "object",
        "required": ["count", "action", "timestamp"],
        "properties": {
          "count": {
            "type": "integer",
            "description": "Total page view count",
            "example": 2080
          },
          "action": {
            "type": "string",
            "description": "Action performed ('read' or 'incremented')",
            "example": "read"
          },
          "timestamp": {
            "type": "string",
            "format": "date-time",
            "example": "2026-08-28T10:00:00.000Z"
          }
        }
      },
      "IncrementViewsRequest": {
        "type": "object",
        "properties": {
          "source": {
            "type": "string",
            "description": "Optional referrer or client source name",
            "example": "ai-agent"
          }
        }
      },
      "DeprecationPolicyResponse": {
        "type": "object",
        "required": ["api_name", "api_version", "active_version", "status", "versioning_type", "deprecation_state", "deprecation_policy", "migration_guide"],
        "properties": {
          "api_name": { "type": "string", "example": "Dehradun Tourism Public REST API (dehradun1.vercel.app)" },
          "api_version": { "type": "string", "example": "1.0.0" },
          "active_version": { "type": "string", "example": "v1" },
          "status": { "type": "string", "example": "supported" },
          "versioning_type": { "type": "string", "example": "URI Path Versioning (/api/v1/*)" },
          "deprecation_state": {
            "type": "object",
            "required": ["is_deprecated", "sunset_date", "sunset_header_value"],
            "properties": {
              "is_deprecated": { "type": "boolean", "example": false },
              "sunset_date": { "type": "string", "example": "2030-12-31T23:59:59.000Z" },
              "sunset_header_value": { "type": "string", "example": "Wed, 31 Dec 2030 23:59:59 GMT" }
            }
          },
          "deprecation_policy": {
            "type": "object",
            "required": ["timeline_notice_months", "policy_url", "signaling_headers"],
            "properties": {
              "timeline_notice_months": { "type": "integer", "example": 12 },
              "policy_url": { "type": "string", "example": "https://dehradun1.vercel.app/deprecation" },
              "signaling_headers": {
                "type": "array",
                "items": { "type": "string" }
              }
            }
          },
          "migration_guide": { "type": "string", "example": "No breaking changes currently scheduled." }
        }
      },
      "ApiEndpointsMap": {
        "type": "object",
        "required": ["root", "places", "place_by_id", "views", "deprecation"],
        "properties": {
          "root": { "type": "string", "example": "/api/v1" },
          "places": { "type": "string", "example": "/api/v1/places" },
          "place_by_id": { "type": "string", "example": "/api/v1/places/{id}" },
          "views": { "type": "string", "example": "/api/v1/views" },
          "deprecation": { "type": "string", "example": "/api/v1/deprecation" }
        }
      },
      "VersioningPolicy": {
        "type": "object",
        "required": ["current_version", "lifecycle", "deprecation_policy"],
        "properties": {
          "current_version": { "type": "string", "example": "v1" },
          "lifecycle": { "type": "string", "example": "Active supported version" },
          "deprecation_policy": { "type": "string", "example": "Sunset notice provided 12 months in advance via Sunset HTTP headers." }
        }
      },
      "ApiDirectoryResponse": {
        "type": "object",
        "required": ["name", "description", "version", "status", "versioning_policy", "documentation_url", "developer_portal", "openapi_url", "openapi_yaml_url", "mcp_server", "llms_txt", "endpoints"],
        "properties": {
          "name": {
            "type": "string",
            "example": "Dehradun Tourism Public REST API (dehradun1.vercel.app)"
          },
          "description": {
            "type": "string",
            "example": "Official public developer API providing tourism data for Dehradun."
          },
          "version": {
            "type": "string",
            "example": "1.0.0"
          },
          "status": {
            "type": "string",
            "example": "operational"
          },
          "versioning_policy": {
            "$ref": "#/components/schemas/VersioningPolicy"
          },
          "documentation_url": {
            "type": "string",
            "format": "uri",
            "example": "https://dehradun1.vercel.app/docs/api"
          },
          "developer_portal": {
            "type": "string",
            "format": "uri",
            "example": "https://dehradun1.vercel.app/developers"
          },
          "openapi_url": {
            "type": "string",
            "format": "uri",
            "example": "https://dehradun1.vercel.app/openapi.json"
          },
          "openapi_yaml_url": {
            "type": "string",
            "format": "uri",
            "example": "https://dehradun1.vercel.app/openapi.yaml"
          },
          "mcp_server": {
            "type": "string",
            "format": "uri",
            "example": "https://dehradun1.vercel.app/.well-known/mcp"
          },
          "llms_txt": {
            "type": "string",
            "format": "uri",
            "example": "https://dehradun1.vercel.app/llms.txt"
          },
          "endpoints": {
            "$ref": "#/components/schemas/ApiEndpointsMap"
          }
        }
      },
      "ErrorResponse": {
        "type": "object",
        "required": ["error"],
        "properties": {
          "error": {
            "$ref": "#/components/schemas/ErrorDetail"
          }
        }
      },
      "ErrorDetail": {
        "type": "object",
        "required": ["code", "message", "status", "hint"],
        "properties": {
          "code": {
            "type": "string",
            "description": "Standard machine-readable error code",
            "example": "PLACE_NOT_FOUND"
          },
          "message": {
            "type": "string",
            "description": "Human-readable error description",
            "example": "Tourist attraction with ID 'unknown-place' was not found."
          },
          "status": {
            "type": "integer",
            "description": "HTTP status code",
            "example": 404
          },
          "hint": {
            "type": "string",
            "description": "Actionable guidance to resolve the error",
            "example": "Query GET /api/v1/places for a full list of valid places."
          }
        }
      }
    }
  }
}