API/REST-API.md

@@ -308,3 +308,43 @@ true
 </details>
 
 ---
+
+### Send
+
+> User can rejoin existing game with valid and existing `JWT TOKEN`.<br>`JWT TOKEN` is received when using [Joining the challenge room](/wimma-lab-2022/iotitude/source-backend/-/wikis/API/REST/Join%20Challenge) or [Create new Challenge](/wimma-lab-2022/iotitude/source-backend/-/wikis/API/REST/New%20Challenge) REST API routes
+
+| Method | Route | Content type | Authentication |
+|--------|-------|--------------|----------------|
+| POST | /feedback/send | - | No |
+
+<details>
+<summary><b>Required Body</b></summary>
+
+```json
+{
+  "text": "string (10-256 characters)",
+}
+```
+
+</details>
+
+<details><summary><b>Example Responses</b></summary>
+
+```json
+{
+  statusCode: 200,
+  text: "string (email text)"
+}
+```
+
+```json
+{
+    "statusCode": 500,
+    "error": "Server error",
+    "message": "Error when sending feedback"
+}
+```
+
+</details>
+
+---
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