{
  "openapi": "3.0.2",
  "info": {
    "title": "UE Application Interface API",
    "version": "2.1.1",
    "description": "The ETSI MEC ISG MEC016 UE Application Interface API described using OpenAPI",
    "license": {
      "name": "BSD-3-Clause",
      "url": "https://forge.etsi.org/legal-matters"
    },
    "contact": {
      "email": "cti_support@etsi.org"
    }
  },
  "externalDocs": {
    "description": "ETSI GS MEC016 UE Application Interface API, V2.1.1",
    "url": "https://www.etsi.org/deliver/etsi_gs/MEC/001_099/016/02.01.01_60/gs_MEC016v020101p.pdf"
  },
  "security": [
    {
      "OauthSecurity": [
        "all"
      ]
    }
  ],
  "servers": [
    {
      "url": "http://127.0.0.1:8081/mx2/v2"
    },
    {
      "url": "https://127.0.0.1:8081/mx2/v2"
    }
  ],
  "tags": [
    {
      "name": "appList"
    },
    {
      "name": "appContext"
    },
    {
      "name": "callback"
    }
  ],
  "paths": {
    "/app_list": {
      "get": {
        "description": "Used to query information about the available MEC applications.",
        "operationId": "AppList_GET",
        "tags": [
          "appList"
        ],
        "parameters": [
          {
            "$ref": "#/components/parameters/Query.AppName"
          },
          {
            "$ref": "#/components/parameters/Query.AppProvider"
          },
          {
            "$ref": "#/components/parameters/Query.AppSoftVersion"
          },
          {
            "$ref": "#/components/parameters/Query.ServiceCont"
          },
          {
            "$ref": "#/components/parameters/Query.VendorId"
          }
        ],
        "responses": {
          "200": {
            "$ref": "#/components/responses/AppList"
          },
          "400": {
            "$ref": "#/components/responses/Error.400"
          },
          "401": {
            "$ref": "#/components/responses/Error.401"
          },
          "403": {
            "$ref": "#/components/responses/Error.403"
          },
          "404": {
            "$ref": "#/components/responses/Error.404"
          }
        }
      }
    },
    "/app_contexts": {
      "post": {
        "description": "The POST method can be used to create a new application context. Upon success, the response contains entity body describing the created application context.",
        "operationId": "AppContext_POST",
        "tags": [
          "appContext"
        ],
        "requestBody": {
          "$ref": "#/components/requestBodies/AppContext"
        },
        "responses": {
          "201": {
            "$ref": "#/components/responses/AppContext"
          },
          "400": {
            "$ref": "#/components/responses/Error.400"
          },
          "401": {
            "$ref": "#/components/responses/Error.401"
          },
          "403": {
            "$ref": "#/components/responses/Error.403"
          },
          "404": {
            "$ref": "#/components/responses/Error.404"
          }
        },
        "callbacks": {
          "referenceURI": {
            "$ref": "#/components/callbacks/NotificationEvent"
          }
        }
      }
    },
    "/app_contexts/{contextId}": {
      "parameters": [
        {
          "$ref": "#/components/parameters/Path.ContextId"
        }
      ],
      "put": {
        "description": "The PUT method is used to update the callback reference of the existing application context. Upon successful operation, the target resource is updated with new callback reference.",
        "operationId": "AppContextId_PUT",
        "tags": [
          "appContext"
        ],
        "requestBody": {
          "$ref": "#/components/requestBodies/AppContext"
        },
        "responses": {
          "204": {
            "description": "No Content."
          },
          "400": {
            "$ref": "#/components/responses/Error.400"
          },
          "401": {
            "$ref": "#/components/responses/Error.401"
          },
          "403": {
            "$ref": "#/components/responses/Error.403"
          },
          "404": {
            "$ref": "#/components/responses/Error.404"
          }
        },
        "callbacks": {
          "referenceURI": {
            "$ref": "#/components/callbacks/NotificationEvent"
          }
        }
      },
      "delete": {
        "description": "The DELETE method is used to delete the resource that represents the existing application context.",
        "operationId": "AppContextId_DEL",
        "tags": [
          "appContext"
        ],
        "responses": {
          "204": {
            "description": "No Content"
          },
          "400": {
            "$ref": "#/components/responses/Error.400"
          },
          "401": {
            "$ref": "#/components/responses/Error.401"
          },
          "403": {
            "$ref": "#/components/responses/Error.403"
          },
          "404": {
            "$ref": "#/components/responses/Error.404"
          }
        }
      }
    }
  },
  "components": {
    "callbacks": {
      "NotificationEvent": {
        "{$request.body#/callbackReference}": {
          "post": {
            "description": "Used by the UALCMP to inform the Device application of  a modification to reference URI of the user application.",
            "operationId": "NotificationEvent_POST",
            "tags": [
              "callback"
            ],
            "requestBody": {
              "$ref": "#/components/requestBodies/NotificationEvent"
            },
            "responses": {
              "204": {
                "description": "No Content."
              }
            }
          }
        }
      }
    },
    "links": {
      "PutAppContext": {
        "operationId": "AppContextId_PUT",
        "description": "The `contextId` value returned in the response can be used as the `contextId` parameter in `PUT /app_contexts/{contextId}`",
        "parameters": {
          "contextId": "$response.body#/contextId"
        }
      },
      "DelAppContext": {
        "operationId": "AppContextId_DEL",
        "description": "The `contextId` value returned in the response can be used as the `contextId` parameter in `DELETE /app_contexts/{contextId}`",
        "parameters": {
          "contextId": "$response.body#/contextId"
        }
      }
    },
    "parameters": {
      "Query.AppName": {
        "name": "appName",
        "in": "query",
        "description": "Name to identify the MEC application",
        "required": false,
        "schema": {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      },
      "Query.AppProvider": {
        "name": "appProvider",
        "in": "query",
        "description": "Provider of the MEC application",
        "required": false,
        "schema": {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      },
      "Query.AppSoftVersion": {
        "name": "appSoftVersion",
        "in": "query",
        "description": "Software version of the MEC application",
        "required": false,
        "schema": {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      },
      "Query.ServiceCont": {
        "name": "serviceCont",
        "in": "query",
        "description": "Required service continuity mode for this application",
        "required": false,
        "schema": {
          "type": "string",
          "enum": [
            "SERVICE_CONTINUITY_NOT_REQUIRED",
            "SERVICE_CONTINUITY_REQUIRED"
          ]
        }
      },
      "Query.VendorId": {
        "name": "vendorId",
        "in": "query",
        "description": "Vendor identifier",
        "required": false,
        "schema": {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      },
      "Path.ContextId": {
        "name": "contextId",
        "in": "path",
        "description": "Uniquely identifies the application context in the MEC system. It is assigned by the MEC system and included in the response to an AppContext create.",
        "required": true,
        "schema": {
          "type": "string"
        }
      }
    },
    "requestBodies": {
      "AppContext": {
        "description": "Uniquely identifies the application context in the MEC system. It is assigned by the MEC system and included in the response to an AppContext create.",
        "content": {
          "application/json": {
            "schema": {
              "$ref": "#/components/schemas/AppContext"
            }
          }
        },
        "required": true
      },
      "NotificationEvent": {
        "description": "Sent by the UALCMP to the Device application.",
        "content": {
          "application/json": {
            "schema": {
              "$ref": "#/components/schemas/NotificationEvent"
            }
          }
        },
        "required": true
      }
    },
    "responses": {
      "AppContext": {
        "description": "The response body contains the Application Context as it was created by the MEC system",
        "content": {
          "application/json": {
            "schema": {
              "$ref": "#/components/schemas/AppContext"
            }
          }
        },
        "links": {
          "putAppContext": {
            "$ref": "#/components/links/PutAppContext"
          },
          "delAppContext": {
            "$ref": "#/components/links/DelAppContext"
          }
        }
      },
      "AppList": {
        "description": "The response body contains the ApplicationList resource available for the querying Device application",
        "content": {
          "application/json": {
            "schema": {
              "$ref": "#/components/schemas/ApplicationList"
            }
          }
        }
      },
      "Error.400": {
        "description": "Bad Request. It is used to indicate that incorrect parameters were passed to the request.",
        "content": {
          "application/problem+json": {
            "schema": {
              "$ref": "#/components/schemas/ProblemDetails"
            }
          },
          "text/plain": {
            "schema": {
              "$ref": "#/components/schemas/Empty"
            }
          }
        }
      },
      "Error.401": {
        "description": "Unauthorized. It is used when the client did not submit the appropriate credentials.",
        "content": {
          "application/problem+json": {
            "schema": {
              "$ref": "#/components/schemas/ProblemDetails"
            }
          },
          "text/plain": {
            "schema": {
              "$ref": "#/components/schemas/Empty"
            }
          }
        }
      },
      "Error.403": {
        "description": "Forbidden. The operation is not allowed given the current status of the resource. ",
        "content": {
          "application/problem+json": {
            "schema": {
              "$ref": "#/components/schemas/ProblemDetails"
            }
          }
        }
      },
      "Error.404": {
        "description": "Not Found. It is used when a client provided a URI that cannot be mapped  to a valid resource URI.",
        "content": {
          "application/problem+json": {
            "schema": {
              "$ref": "#/components/schemas/ProblemDetails"
            }
          },
          "text/plain": {
            "schema": {
              "$ref": "#/components/schemas/Empty"
            }
          }
        }
      }
    },
    "securitySchemes": {
      "OauthSecurity": {
        "type": "oauth2",
        "flows": {
          "clientCredentials": {
            "tokenUrl": "https://oauth.exampleAPI/token",
            "scopes": {
              "all": "Single oauth2 scope for API"
            }
          }
        }
      }
    },
    "schemas": {
      "Empty": {
        "description": "Empty schema"
      },
      "ProblemDetails": {
        "type": "object",
        "properties": {
          "type": {
            "$ref": "#/components/schemas/Problem.type"
          },
          "title": {
            "$ref": "#/components/schemas/Problem.title"
          },
          "status": {
            "$ref": "#/components/schemas/Problem.status"
          },
          "detail": {
            "$ref": "#/components/schemas/Problem.detail"
          },
          "instance": {
            "$ref": "#/components/schemas/Problem.instance"
          }
        }
      },
      "Problem.type": {
        "type": "string",
        "format": "uri",
        "description": "A URI reference according to IETF RFC 3986 that identifies the problem type"
      },
      "Problem.title": {
        "type": "string",
        "description": "A short, human-readable summary of the problem type"
      },
      "Problem.status": {
        "type": "integer",
        "format": "uint32",
        "description": "The HTTP status code for this occurrence of the problem"
      },
      "Problem.detail": {
        "type": "string",
        "description": "A human-readable explanation specific to this occurrence of the problem"
      },
      "Problem.instance": {
        "type": "string",
        "format": "uri",
        "description": "A URI reference that identifies the specific occurrence of the problem"
      },
      "ApplicationList": {
        "description": "Information on available applications",
        "type": "object",
        "properties": {
          "appList": {
            "$ref": "#/components/schemas/AppList"
          },
          "vendorSpecificExt": {
            "$ref": "#/components/schemas/VendorSpecificExt"
          }
        }
      },
      "AppList": {
        "description": "List of user applications available to the device application",
        "type": "array",
        "minItems": 0,
        "items": {
          "type": "object",
          "required": [
            "appInfo"
          ],
          "properties": {
            "appInfo": {
              "$ref": "#/components/schemas/AppInfo"
            }
          }
        }
      },
      "AppContext": {
        "description": "Information on application context created by the MEC system",
        "type": "object",
        "required": [
          "contextId",
          "associateUeAppId",
          "callbackReference",
          "appInfo"
        ],
        "properties": {
          "contextId": {
            "$ref": "#/components/schemas/ContextId"
          },
          "associateUeAppId": {
            "$ref": "#/components/schemas/AssociateUeAppId"
          },
          "callbackReference": {
            "$ref": "#/components/schemas/CallbackReference"
          },
          "appInfo": {
            "$ref": "#/components/schemas/AppInfoAppContext"
          }
        }
      },
      "NotificationEvent": {
        "description": "The parameters used in the method \"Receiving notification events\".",
        "type": "object",
        "required": [
          "referenceURI"
        ],
        "properties": {
          "referenceURI": {
            "$ref": "#/components/schemas/ReferenceURL"
          }
        }
      },
      "VendorSpecificExt": {
        "description": "Extension for vendor-specific information",
        "required": [
          "vendorId"
        ],
        "properties": {
          "vendorId": {
            "$ref": "#/components/schemas/VendorId"
          }
        }
      },
      "ContextId": {
        "description": "Uniquely identifies the application context in the MEC system. Assigned by the MEC system and included in the response. The length of the value shall not exceed 32 characters.",
        "type": "string",
        "readOnly": true
      },
      "AssociateUeAppId": {
        "description": "Uniquely identifies the Device application. Included in the request. The length of the value shall not exceed 32 characters.",
        "type": "string",
        "writeOnly": true
      },
      "VendorId": {
        "description": "Vendor identifier. The length of the value shall not exceed 32 characters. The rest of the structure of this vendor specific extension is not defined",
        "type": "string"
      },
      "AppInfo": {
        "type": "object",
        "required": [
          "appDId",
          "appName",
          "appProvider",
          "appSoftVersion",
          "appDVersion",
          "appDescription"
        ],
        "properties": {
          "appDId": {
            "$ref": "#/components/schemas/AppDId"
          },
          "appName": {
            "$ref": "#/components/schemas/AppName"
          },
          "appProvider": {
            "$ref": "#/components/schemas/AppProvider"
          },
          "appSoftVersion": {
            "$ref": "#/components/schemas/AppSoftVersion"
          },
          "appDVersion": {
            "$ref": "#/components/schemas/AppDVersion"
          },
          "appDescription": {
            "$ref": "#/components/schemas/AppDescription"
          },
          "appCharcs": {
            "$ref": "#/components/schemas/AppCharcs"
          }
        }
      },
      "AppInfoAppContext": {
        "description": "Included in the request",
        "type": "object",
        "required": [
          "appName",
          "appProvider",
          "appDVersion"
        ],
        "properties": {
          "appDId": {
            "$ref": "#/components/schemas/AppDId"
          },
          "appName": {
            "$ref": "#/components/schemas/AppName"
          },
          "appProvider": {
            "$ref": "#/components/schemas/AppProvider"
          },
          "appSoftVersion": {
            "$ref": "#/components/schemas/AppSoftVersion"
          },
          "appDVersion": {
            "$ref": "#/components/schemas/AppDVersion"
          },
          "appDescription": {
            "$ref": "#/components/schemas/AppDescription"
          },
          "referenceURL": {
            "$ref": "#/components/schemas/ReferenceURL"
          },
          "appPackageSource": {
            "$ref": "#/components/schemas/AppPackageSource"
          }
        }
      },
      "AppCharcs": {
        "description": "The application characteristics relate to the system resources consumed by the application. Device application can use this information e.g., for estimating the cost of use of the application or for the expected user experience",
        "type": "object",
        "properties": {
          "memory": {
            "$ref": "#/components/schemas/Memory"
          },
          "storage": {
            "$ref": "#/components/schemas/Storage"
          },
          "latency": {
            "$ref": "#/components/schemas/Latency"
          },
          "bandwidth": {
            "$ref": "#/components/schemas/Bandwidth"
          },
          "serviceCont": {
            "$ref": "#/components/schemas/ServiceCont"
          }
        }
      },
      "Memory": {
        "description": "The maximum size in Mbytes of the memory resource reserved for the MEC application instance in the MEC system",
        "type": "integer",
        "format": "uint32"
      },
      "Storage": {
        "description": "The maximum size in Mbytes of the storage resource expected to be used by the MEC application instance in the MEC system",
        "type": "integer",
        "format": "uint32"
      },
      "Latency": {
        "description": "The target round trip time in milliseconds supported by the MEC system for the MEC application instance",
        "type": "integer",
        "format": "uint32"
      },
      "Bandwidth": {
        "description": "The required connection bandwidth in kbit/s for the use of the MEC application instance",
        "type": "integer",
        "format": "uint32"
      },
      "ServiceCont": {
        "description": "Required service continuity mode for this application.",
        "type": "string",
        "enum": [
          "SERVICE_CONTINUITY_NOT_REQUIRED",
          "SERVICE_CONTINUITY_REQUIRED"
        ],
        "example": "SERVICE_CONTINUITY_NOT_REQUIRED"
      },
      "AppDId": {
        "description": "Identifier of this MEC application descriptor. It is equivalent to  the appDId defined in clause 6.2.1.2 of ETSI GS MEC 010-2.  This attribute shall be globally unique. It shall be present if the  application is one in the ApplicationList.",
        "type": "string"
      },
      "AppName": {
        "description": "Name of the MEC application. The length of the value shall not exceed 32 characters.",
        "type": "string"
      },
      "AppProvider": {
        "description": "Provider of the MEC application. The length of the value shall not exceed 32 characters.",
        "type": "string"
      },
      "AppSoftVersion": {
        "description": "Software version of the MEC application. The length of the value shall not exceed 32 characters.",
        "type": "string"
      },
      "AppDVersion": {
        "description": "Identifies the version of the application descriptor. It is  equivalent to the appDVersion defined in clause 6.2.1.2 of  ETSI GS MEC 010-2.",
        "type": "string"
      },
      "AppDescription": {
        "description": "Human readable description of the MEC application. NOTE the language support may be limited. The length of the value shall not exceed 128 characters.",
        "type": "string"
      },
      "CallbackReference": {
        "description": "URI assigned by the Device application to receive application lifecycle related notifications. Included in the request. This subscription stays alive for the lifetime of the application context.",
        "type": "string",
        "format": "uri",
        "writeOnly": true
      },
      "ReferenceURL": {
        "description": "Address of the user application. Used as the reference URL for the application. Assigned by the MEC system and included in the response",
        "type": "string",
        "format": "uri",
        "readOnly": true
      },
      "AppPackageSource": {
        "description": "URI of the application package. Included in the request if the application is not one in the ApplicationList. appPackageSource enables on-boarding of the application package into the MEC system. The application package shall comply with the definitions in clause 6.2.1.2 of ETSI GS MEC 010-2",
        "type": "string",
        "format": "uri"
      }
    }
  }
}