1 files changed, 138 insertions, 0 deletions
diff --git a/doc/api-task-procedures.markdown b/doc/api-task-procedures.markdown
index 934b1e09..2897c81a 100644
--- a/doc/api-task-procedures.markdown
+++ b/doc/api-task-procedures.markdown
@@ -695,3 +695,141 @@ Response example:
     ]
 }
 ```
+
+## getTaskMetadata
+
+- Purpose: **Get all metadata related to a task by task unique id**
+- Parameters:
+    - **task_id** (integer, required)
+- Result on success: **list of metadata**
+- Result on failure: **empty array**
+
+Request example to fetch all the metada of a task:
+
+```json
+{
+    "jsonrpc": "2.0",
+    "method": "getTaskMetadata",
+    "id": 133280317,
+    "params": [
+        1
+    ]
+}
+```
+
+Response example:
+
+```json
+{
+    "jsonrpc": "2.0",
+    "id": 133280317,
+    "result": [
+        {
+            "metaKey1": "metaValue1",
+            "metaKey2": "metaValue2",
+            ...
+        }
+    ]
+}
+```
+
+## getTaskMetadataByName
+
+- Purpose: **Get metadata related to a task by task unique id and metakey (name)**
+- Parameters:
+    - **task_id** (integer, required)
+    - **name** (string, required)
+- Result on success: **metadata value**
+- Result on failure: **empty string**
+
+Request example to fetch metada of a task by name:
+
+```json
+{
+    "jsonrpc": "2.0",
+    "method": "getTaskMetadataByName",
+    "id": 133280317,
+    "params": [
+        1,
+        "metaKey1"
+    ]
+}
+```
+
+Response example:
+
+```json
+{
+    "jsonrpc": "2.0",
+    "id": 133280317,
+    "result": "metaValue1"
+}
+```
+
+## saveTaskMetadata
+
+- Purpose: **Save/update task metadata**
+- Parameters:
+    - **task_id** (integer, required)
+    - **array("name" => "value")** (array, required)
+- Result on success: **true**
+- Result on failure: **false**
+
+Request example to add/update metada of a task:
+
+```json
+{
+    "jsonrpc": "2.0",
+    "method": "saveTaskMetadata",
+    "id": 133280317,
+    "params": [
+        1,
+        {
+            "metaName" : "metaValue"
+        }
+    ]
+}
+```
+
+Response example:
+
+```json
+{
+    "jsonrpc": "2.0",
+    "id": 133280317,
+    "result": true
+}
+```
+
+## removeTaskMetadata
+
+- Purpose: **Remove task metadata by name**
+- Parameters:
+    - **task_id** (integer, required)
+    - **name** (string, required)
+- Result on success: **true**
+- Result on failure: **false**
+
+Request example to remove metada of a task by name:
+
+```json
+{
+    "jsonrpc": "2.0",
+    "method": "removeTaskMetadata",
+    "id": 133280317,
+    "params": [
+        1,
+        "metaKey1"
+    ]
+}
+```
+
+Response example:
+
+```json
+{
+    "jsonrpc": "2.0",
+    "id": 133280317,
+    "result": true
+}
+```