feat: add mqtt bindings schemas (#464)

Co-authored-by: Sergio Moya <[email protected]>
asyncapi · Dec 4, 2023 · fc2611a · fc2611a
1 parent ede215f
commit fc2611a
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Showing 8 changed files with 104 additions and 96 deletions.
diff --git a/bindings/mqtt/0.2.0/message.json b/bindings/mqtt/0.2.0/message.json
@@ -11,6 +11,44 @@
     }
   },
   "properties": {
+    "payloadFormatIndicator": {
+      "type": "integer",
+      "enum": [0, 1],
+      "description": "1 indicates that the payload is UTF-8 encoded character data.  0 indicates that the payload format is unspecified.",
+      "default": 0
+    },
+    "correlationData": {
+      "oneOf": [
+        {
+          "$ref": "http://asyncapi.com/definitions/3.0.0/schema.json"
+        },
+        {
+          "$ref": "http://asyncapi.com/definitions/3.0.0/Reference.json"
+        }
+      ],
+      "description": "Correlation Data is used by the sender of the request message to identify which request the response message is for when it is received."
+    },
+    "contentType": {
+      "type": "string",
+      "description": "String describing the content type of the message payload. This should not conflict with the contentType field of the associated AsyncAPI Message object."
+    },
+    "responseTopic": {
+      "oneOf": [
+        {
+          "type": "string",
+          "format": "uri-template",
+          "minLength": 1
+        },
+        {
+          "$ref": "http://asyncapi.com/definitions/3.0.0/schema.json"
+        },
+        {
+          "$ref": "http://asyncapi.com/definitions/3.0.0/Reference.json"
+        }
+      ],
+      "description": "The topic (channel URI) to be used for a response message."
+    },
+
     "bindingVersion": {
       "type": "string",
       "enum": [
@@ -22,6 +60,15 @@
   "examples": [
     {
       "bindingVersion": "0.2.0"
+    },
+    {
+      "contentType": "application/json",
+      "correlationData": {
+        "type": "string",
+        "format": "uuid"
+      },
+      "responseTopic": "application/responses",
+      "bindingVersion": "0.2.0"
     }
   ]
-}
+}
diff --git a/bindings/mqtt/0.2.0/operation.json b/bindings/mqtt/0.2.0/operation.json
@@ -13,12 +13,29 @@
   "properties": {
     "qos": {
       "type": "integer",
+      "enum": [0,1,2],
       "description": "Defines the Quality of Service (QoS) levels for the message flow between client and server. Its value MUST be either 0 (At most once delivery), 1 (At least once delivery), or 2 (Exactly once delivery)."
     },
     "retain": {
       "type": "boolean",
       "description": "Whether the broker should retain the message or not."
     },
+    "messageExpiryInterval": {
+      "oneOf": [
+        {
+          "type": "integer",
+          "minimum": 0,
+          "maximum": 4294967295
+        },
+        {
+          "$ref": "http://asyncapi.com/definitions/3.0.0/schema.json"
+        },
+        {
+          "$ref": "http://asyncapi.com/definitions/3.0.0/Reference.json"
+        }
+      ],
+      "description": "Lifetime of the message in seconds"
+    },
     "bindingVersion": {
       "type": "string",
       "enum": [
@@ -31,7 +48,8 @@
     {
       "qos": 2,
       "retain": true,
+      "messageExpiryInterval": 60,
       "bindingVersion": "0.2.0"
     }
   ]
-}
+}
diff --git a/bindings/mqtt/0.2.0/server.json b/bindings/mqtt/0.2.0/server.json
@@ -1,7 +1,7 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
   "$id": "http://asyncapi.com/bindings/mqtt/0.2.0/server.json",
-  "title": "MQTT server bindings object",
+  "title": "Server Schema",
   "description": "This object contains information about the server representation in MQTT.",
   "type": "object",
   "additionalProperties": false,
@@ -11,13 +11,14 @@
     }
   },
   "properties": {
+
     "clientId": {
       "type": "string",
       "description": "The client identifier."
     },
     "cleanSession": {
       "type": "boolean",
-      "description": "Whether to create a persistent connection or not. When 'false', the connection will be persistent."
+      "description": "Whether to create a persistent connection or not. When 'false', the connection will be persistent. This is called clean start in MQTTv5."
     },
     "lastWill": {
       "type": "object",
@@ -46,6 +47,37 @@
       "type": "integer",
       "description": "Interval in seconds of the longest period of time the broker and the client can endure without sending a message."
     },
+    "sessionExpiryInterval": {
+      "oneOf": [
+        {
+          "type": "integer",
+          "minimum": 0
+        },
+        {
+          "$ref": "http://asyncapi.com/definitions/3.0.0/schema.json"
+        },
+        {
+          "$ref": "http://asyncapi.com/definitions/3.0.0/Reference.json"
+        }
+      ],
+      "description": "Interval time in seconds or a Schema Object containing the definition of the interval.  The broker maintains a session for a disconnected client until this interval expires."
+    },
+    "maximumPacketSize": {
+      "oneOf": [
+        {
+          "type": "integer",
+          "minimum": 1,
+          "maximum": 4294967295
+        },
+        {
+          "$ref": "http://asyncapi.com/definitions/3.0.0/schema.json"
+        },
+        {
+          "$ref": "http://asyncapi.com/definitions/3.0.0/Reference.json"
+        }
+      ],
+      "description": "Number of bytes or a Schema Object representing the Maximum Packet Size the Client is willing to accept."
+    },
     "bindingVersion": {
       "type": "string",
       "enum": [
@@ -65,7 +97,9 @@
         "retain": false
       },
       "keepAlive": 60,
+      "sessionExpiryInterval": 120,
+      "maximumPacketSize": 1024,
       "bindingVersion": "0.2.0"
     }
   ]
-}
+}
diff --git a/bindings/mqtt5/0.2.0/server.json b/bindings/mqtt5/0.2.0/server.json
diff --git a/definitions/3.0.0/channelBindingsObject.json b/definitions/3.0.0/channelBindingsObject.json
@@ -81,7 +81,6 @@
     },
     "amqp1": {},
     "mqtt": {},
-    "mqtt5": {},
     "kafka": {
       "properties": {
         "bindingVersion": {

diff --git a/definitions/3.0.0/messageBindingsObject.json b/definitions/3.0.0/messageBindingsObject.json
@@ -115,7 +115,6 @@
         }
       ]
     },
-    "mqtt5": { },
     "kafka": {
       "properties": {
         "bindingVersion": {

diff --git a/definitions/3.0.0/operationBindingsObject.json b/definitions/3.0.0/operationBindingsObject.json
@@ -115,7 +115,6 @@
         }
       ]
     },
-    "mqtt5": {},
     "kafka": {
       "properties": {
         "bindingVersion": {

diff --git a/definitions/3.0.0/serverBindingsObject.json b/definitions/3.0.0/serverBindingsObject.json
@@ -47,41 +47,6 @@
         }
       ]
     },
-    "mqtt5": {
-      "properties": {
-        "bindingVersion": {
-          "enum": ["0.2.0"]
-        }
-      },
-      "allOf": [
-        {
-          "description": "If no bindingVersion specified, use the latest binding",
-          "if": {
-            "not": {
-              "required": [
-                "bindingVersion"
-              ]
-            }
-          },
-          "then": {
-            "$ref": "http://asyncapi.com/bindings/mqtt5/0.2.0/server.json"
-          }
-        },
-        { 
-          "if": {
-            "required": [ "bindingVersion" ],
-            "properties": {
-              "bindingVersion": {
-                "const": "0.2.0"
-              }
-            }
-          }, 
-          "then": {
-            "$ref": "http://asyncapi.com/bindings/mqtt5/0.2.0/server.json"
-          }
-        }
-      ]
-    },
     "kafka": {
       "properties": {
         "bindingVersion": {