chore: improve error messages

app/(auth)/adapter.ts

@@ -44,7 +44,12 @@ export const getAllWorkspaces = async (
       `Fetching workspaces failed with error code ${allWorkspacesResponse.status}`,
     );
   } catch (error) {
-    return Err(extractErrorMessageOrDefault(error));
+    return Err(
+      extractErrorMessageOrDefault(
+        error,
+        'Unknown error while fetching workspaces',
+      ),
+    );
   }
 };
 
@@ -76,7 +81,12 @@ export const createWorkspace = async (
     }
     return Err(`Creating workspace failed with error code ${response.status}`);
   } catch (error) {
-    return Err(extractErrorMessageOrDefault(error));
+    return Err(
+      extractErrorMessageOrDefault(
+        error,
+        'Unknown error while creating workspace',
+      ),
+    );
   }
 };
 
@@ -106,7 +116,12 @@ export const getAllProjects = async (
       `Fetching projects failed with error code ${allProjectsResponse.status}`,
     );
   } catch (error) {
-    return Err(extractErrorMessageOrDefault(error));
+    return Err(
+      extractErrorMessageOrDefault(
+        error,
+        'Unknown error while fetching projects',
+      ),
+    );
   }
 };
 
@@ -140,6 +155,11 @@ export const createProjectInWorkspace = async (
     }
     return Err(`Creating project failed with error code ${response.status}`);
   } catch (error) {
-    return Err(extractErrorMessageOrDefault(error));
+    return Err(
+      extractErrorMessageOrDefault(
+        error,
+        'Unknown error while creating project',
+      ),
+    );
   }
 };

app/(chat)/adapter.ts

@@ -53,7 +53,12 @@ export const getConversation = async (
       `Fetching conversation failed with error code ${conversationResponse.status}`,
     );
   } catch (error) {
-    return Err(extractErrorMessageOrDefault(error));
+    return Err(
+      extractErrorMessageOrDefault(
+        error,
+        'Unknown error while fetching conversation',
+      ),
+    );
   }
 };
 
@@ -91,7 +96,12 @@ export const getConversationMessages = async (
       `Fetching conversation messages failed with error code ${conversationResponse.status}`,
     );
   } catch (error) {
-    return Err(extractErrorMessageOrDefault(error));
+    return Err(
+      extractErrorMessageOrDefault(
+        error,
+        'Unknown error while fetching conversation messages',
+      ),
+    );
   }
 };
 
@@ -138,7 +148,12 @@ export const createConversation = async (
       `Creating conversation failed with error code ${conversationResponse.status}`,
     );
   } catch (error) {
-    return Err(extractErrorMessageOrDefault(error));
+    return Err(
+      extractErrorMessageOrDefault(
+        error,
+        'Unknown error while creating conversation',
+      ),
+    );
   }
 };
 
@@ -185,7 +200,12 @@ export const sendMessage = async (
       `Sending message failed with error code ${messageResponse.status}`,
     );
   } catch (error) {
-    return Err(extractErrorMessageOrDefault(error));
+    return Err(
+      extractErrorMessageOrDefault(
+        error,
+        'Unknown error while sending message',
+      ),
+    );
   }
 };
 
@@ -228,11 +248,26 @@ export const sendMessageStreamed = async (
         : Err('Message was sent but stream object is null');
     }
 
+    /**
+     * This error is specifically handled because the user should know the
+     * reason, so that they can top up their MOR stake if needed
+     */
+    if (messageResponse.status === 429) {
+      return Err(
+        'You have used all your daily prompt credits. Please top up your MOR stake to continue, or wait until tomorrow.',
+      );
+    }
+
     return Err(
       `Sending message failed with error code ${messageResponse.status}`,
     );
   } catch (error) {
-    return Err(extractErrorMessageOrDefault(error));
+    return Err(
+      extractErrorMessageOrDefault(
+        error,
+        'Unknown error while sending streamed message',
+      ),
+    );
   }
 };
 
@@ -267,7 +302,12 @@ export const getAllConversations = async (
       `Fetching projects failed with error code ${allConversationsResponse.status}`,
     );
   } catch (error) {
-    return Err(extractErrorMessageOrDefault(error));
+    return Err(
+      extractErrorMessageOrDefault(
+        error,
+        'Unknown error while fetching all conversations',
+      ),
+    );
   }
 };
 
@@ -311,6 +351,11 @@ export const renameConversation = async (
       `Renaming conversation failed with error code ${renameResponse.status}`,
     );
   } catch (error) {
-    return Err(extractErrorMessageOrDefault(error));
+    return Err(
+      extractErrorMessageOrDefault(
+        error,
+        'Unknown error while renaming conversation',
+      ),
+    );
   }
 };

app/(chat)/api/chat/route.ts

@@ -75,7 +75,13 @@ export async function POST(request: Request) {
       });
     },
     onError: (error) => {
-      return extractErrorMessageOrDefault(error);
+      /**
+       * We may get an error object when calling message API, or an error string
+       * when transforming the stream
+       */
+      return typeof error === 'string'
+        ? error
+        : extractErrorMessageOrDefault(error);
     },
   });
 }

components/chat.tsx

@@ -48,7 +48,7 @@ export function Chat({
       mutate('/api/history');
     },
     onError: (error) => {
-      toast.error('An error occured, please try again!');
+      toast.error(error.message);
     },
   });
 

lib/ai/pattern-model.ts

@@ -11,8 +11,6 @@ import type {
   ToolStartEvent,
 } from '@/lib/ai/types';
 
-import { extractErrorMessageOrDefault } from '../utils';
-
 const textDecoder = new TextDecoder();
 
 export class PatternModel implements LanguageModelV1 {
@@ -115,10 +113,7 @@ export class PatternModel implements LanguageModelV1 {
           } catch (error) {
             controller.enqueue({
               type: 'error',
-              error: extractErrorMessageOrDefault(
-                error,
-                'An unknown error occurred when transforming response chunk',
-              ),
+              error: 'Cannot parse chunk due to corrupted data or invalid JSON',
             });
           }
         } else {