{
  "openapi": "3.1.0",
  "info": {
    "title": "Onedrop",
    "version": "1.1.0",
    "description": "Frictionless expiring file share. 6-char share codes, no auth. Two upload modes: a single-request multipart upload (default) and a 5 MiB chunked upload for large files. See /llms.txt for the human-readable protocol description.",
    "license": { "name": "MIT" }
  },
  "servers": [
    { "url": "https://0x1.one", "description": "Production" }
  ],
  "paths": {
    "/api": {
      "get": {
        "summary": "JSON index of the API",
        "description": "Returns this summary as JSON, including the location of /llms.txt and the OpenAPI spec. Useful as a first request when probing the service.",
        "responses": {
          "200": {
            "description": "OK",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "service": { "type": "string" },
                    "docs": { "type": "string", "format": "uri" },
                    "openapi": { "type": "string", "format": "uri" },
                    "endpoints": { "type": "array", "items": { "type": "object" } }
                  }
                }
              }
            }
          }
        }
      }
    },
    "/api/spaces/create": {
      "post": {
        "summary": "Create a share space",
        "requestBody": {
          "required": false,
          "content": {
            "application/json": {
              "schema": { "$ref": "#/components/schemas/CreateSpaceRequest" }
            }
          }
        },
        "responses": {
          "200": {
            "description": "Space created",
            "content": {
              "application/json": {
                "schema": { "$ref": "#/components/schemas/CreateSpaceResponse" }
              }
            }
          }
        }
      }
    },
    "/api/spaces/{slug}/upload": {
      "post": {
        "summary": "Upload a file",
        "description": "Two modes.\n\n1. **Simple (preferred):** omit `action`, send `multipart/form-data` with a `file` field. One request, any size the Worker request body limit allows.\n\n2. **Chunked:** pass `action=start` / `action=part` / `action=complete`. Required for large files; chunks must be exactly 5 MiB.",
        "parameters": [
          { "name": "slug", "in": "path", "required": true, "schema": { "type": "string", "pattern": "^[A-HJ-NP-Z2-9]{6}$" } },
          {
            "name": "action",
            "in": "query",
            "required": false,
            "description": "Omit for the simple single-request upload. Setting it switches to the chunked flow.",
            "schema": { "type": "string", "enum": ["start", "part", "complete"] }
          },
          { "name": "key", "in": "query", "required": false, "description": "Chunked flow only, for action=part. Key returned by action=start.", "schema": { "type": "string" } },
          { "name": "uploadId", "in": "query", "required": false, "description": "Chunked flow only, for action=part.", "schema": { "type": "string" } },
          { "name": "partNumber", "in": "query", "required": false, "description": "Chunked flow only, for action=part. Starts at 1.", "schema": { "type": "integer", "minimum": 1 } }
        ],
        "requestBody": {
          "required": true,
          "content": {
            "multipart/form-data": {
              "schema": {
                "oneOf": [
                  { "$ref": "#/components/schemas/SimpleUploadRequest" },
                  { "$ref": "#/components/schemas/UploadPartRequest" }
                ]
              }
            },
            "application/json": {
              "schema": {
                "oneOf": [
                  { "$ref": "#/components/schemas/UploadStartRequest" },
                  { "$ref": "#/components/schemas/UploadCompleteRequest" }
                ]
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "OK",
            "content": {
              "application/json": {
                "schema": {
                  "oneOf": [
                    { "$ref": "#/components/schemas/UploadSimpleResponse" },
                    { "$ref": "#/components/schemas/UploadStartResponse" },
                    { "$ref": "#/components/schemas/UploadPartResponse" },
                    { "$ref": "#/components/schemas/UploadCompleteResponse" }
                  ]
                }
              }
            }
          },
          "400": { "$ref": "#/components/responses/BadRequest" },
          "404": { "$ref": "#/components/responses/NotFound" },
          "410": { "$ref": "#/components/responses/Gone" }
        }
      }
    },
    "/api/spaces/{slug}": {
      "get": {
        "summary": "List files in a space",
        "parameters": [
          { "name": "slug", "in": "path", "required": true, "schema": { "type": "string", "pattern": "^[A-HJ-NP-Z2-9]{6}$" } }
        ],
        "responses": {
          "200": {
            "description": "OK",
            "content": {
              "application/json": {
                "schema": { "$ref": "#/components/schemas/ListSpaceResponse" }
              }
            }
          },
          "400": { "$ref": "#/components/responses/BadRequest" },
          "404": { "$ref": "#/components/responses/NotFound" },
          "410": { "$ref": "#/components/responses/Gone" }
        }
      }
    },
    "/api/spaces/{slug}/files/{key}": {
      "get": {
        "summary": "Download a file (GET only — do not use HEAD)",
        "parameters": [
          { "name": "slug", "in": "path", "required": true, "schema": { "type": "string", "pattern": "^[A-HJ-NP-Z2-9]{6}$" } },
          { "name": "key", "in": "path", "required": true, "schema": { "type": "string" } }
        ],
        "responses": {
          "200": { "description": "Raw bytes", "content": { "application/octet-stream": { "schema": { "type": "string", "format": "binary" } } } },
          "400": { "$ref": "#/components/responses/BadRequest" },
          "404": { "$ref": "#/components/responses/NotFound" },
          "410": { "$ref": "#/components/responses/Gone" }
        }
      }
    }
  },
  "components": {
    "responses": {
      "BadRequest": { "description": "Malformed share code or file key, or a missing required part" },
      "NotFound": { "description": "Share or file does not exist" },
      "Gone": { "description": "Share has expired" }
    },
    "schemas": {
      "CreateSpaceRequest": {
        "type": "object",
        "properties": { "expiresInHours": { "type": "integer", "minimum": 1, "maximum": 24, "default": 3 } }
      },
      "CreateSpaceResponse": {
        "type": "object",
        "required": ["slug", "url", "createdAt", "expiresAt", "expiresInHours"],
        "properties": {
          "slug": { "type": "string", "pattern": "^[A-HJ-NP-Z2-9]{6}$" },
          "url": { "type": "string", "format": "uri" },
          "createdAt": { "type": "integer", "description": "Epoch milliseconds" },
          "expiresAt": { "type": "integer", "description": "Epoch milliseconds" },
          "expiresInHours": { "type": "integer" }
        }
      },
      "SimpleUploadRequest": {
        "type": "object",
        "description": "Single-request upload. No action query parameter.",
        "required": ["file"],
        "properties": {
          "file": { "type": "string", "format": "binary" }
        }
      },
      "UploadSimpleResponse": {
        "type": "object",
        "required": ["ok", "key"],
        "properties": {
          "ok": { "type": "boolean" },
          "key": { "type": "string" }
        }
      },
      "UploadStartRequest": {
        "type": "object",
        "required": ["name"],
        "properties": {
          "name": { "type": "string" },
          "type": { "type": "string", "default": "application/octet-stream" }
        }
      },
      "UploadStartResponse": {
        "type": "object",
        "required": ["ok", "key", "uploadId", "uploadedAt"],
        "properties": {
          "ok": { "type": "boolean" },
          "key": { "type": "string" },
          "uploadId": { "type": "string" },
          "name": { "type": "string" },
          "type": { "type": "string" },
          "uploadedAt": { "type": "string", "format": "date-time" }
        }
      },
      "UploadPartRequest": {
        "type": "object",
        "required": ["chunk"],
        "properties": {
          "chunk": { "type": "string", "format": "binary", "description": "Exactly 5 MiB (5 * 1024 * 1024 bytes)" }
        }
      },
      "UploadPartResponse": {
        "type": "object",
        "properties": {
          "ok": { "type": "boolean" },
          "partNumber": { "type": "integer", "minimum": 1 },
          "etag": { "type": "string" }
        }
      },
      "UploadCompleteRequest": {
        "type": "object",
        "required": ["key", "uploadId", "parts", "name", "uploadedAt"],
        "properties": {
          "key": { "type": "string" },
          "uploadId": { "type": "string" },
          "parts": {
            "type": "array",
            "items": {
              "type": "object",
              "required": ["partNumber", "etag"],
              "properties": {
                "partNumber": { "type": "integer", "minimum": 1 },
                "etag": { "type": "string" }
              }
            }
          },
          "name": { "type": "string" },
          "uploadedAt": { "type": "string", "format": "date-time", "description": "Must equal the value returned by action=start, verbatim" }
        }
      },
      "UploadCompleteResponse": {
        "type": "object",
        "properties": {
          "ok": { "type": "boolean" },
          "key": { "type": "string" }
        }
      },
      "ListSpaceResponse": {
        "type": "object",
        "required": ["slug", "url", "createdAt", "expiresAt", "files"],
        "properties": {
          "slug": { "type": "string" },
          "url": { "type": "string", "format": "uri" },
          "createdAt": { "type": "integer", "description": "Epoch milliseconds" },
          "expiresAt": { "type": "integer", "description": "Epoch milliseconds" },
          "files": {
            "type": "array",
            "items": { "$ref": "#/components/schemas/SpaceFile" }
          }
        }
      },
      "SpaceFile": {
        "type": "object",
        "required": ["key", "name", "size"],
        "properties": {
          "key": { "type": "string" },
          "name": { "type": "string" },
          "size": { "type": "integer" },
          "uploadedAt": { "type": "string", "format": "date-time" }
        }
      }
    }
  }
}