From f58ea57ca99943c7e54dce96433fc7bec83f48f4 Mon Sep 17 00:00:00 2001
From: David Robertson <davidr@element.io>
Date: Fri, 1 Jul 2022 00:36:55 +0100
Subject: [PATCH] Also return 400 if you give a bogus room ID

---
 data/api/client-server/account-data.yaml | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/data/api/client-server/account-data.yaml b/data/api/client-server/account-data.yaml
index ff276a95..97369b29 100644
--- a/data/api/client-server/account-data.yaml
+++ b/data/api/client-server/account-data.yaml
@@ -214,7 +214,8 @@ paths:
             type: object
         400:
           description: |-
-            The request body is not a JSON object.
+            The request body is not a JSON object, or the given `roomID` is not a valid
+            room ID.
           examples:
             application/json: {
               "errcode": "M_BAD_JSON",
@@ -286,6 +287,14 @@ paths:
             type: object
             example: {
               "custom_account_data_key": "custom_config_value"}
+        400:
+          description: |-
+            The given `roomID` is not a valid room ID.
+          examples:
+            application/json: {
+              "errcode": "M_INVALID_PARAM",
+              "error": "@notaroomid:example.org is not a valid room ID."
+            }
         403:
           description: |-
             The access token provided is not authorized to retrieve this user's account