[blockchain] refs fibercrypto#17 - Add specs for /api/transactions/hi…

…story/from/{address}/observation

lagcleaner_specs.yml

@@ -40,6 +40,30 @@ paths:
 
         description: Should starts observation of the transactions that transfer fund to the address, and affect the result of the [GET] /api/transactions/history/to/{address}.
 
+        security:
+          - CsrfTokenAuth: []
+
+        responses:
+          '200':
+            description: Successfully stored in observation list.
+
+          default:
+            $ref: '#/components/schemas/genericError'
+# - 17
+    /api/transactions/history/from/{address}/observation:
+      post:
+        parameters:
+          - in: path
+            name: address
+            required: true
+            schema:
+              type: string
+            description: Address from which funds are transferred.
+
+        summary: Starts observation of the transactions.
+
+        description: Should starts observation of the transactions that transfer fund from the address, and affect the result of the [GET] /api/transactions/history/from/{address}.
+
         security:
           - CsrfTokenAuth: []