feat: add initial api logging (#1494)

Improve API logging and error handling between client and server side.

apps/web/src/pages/api/trpc/[trpc].ts

@@ -1,3 +1,5 @@
+import { AppError, AppErrorCode } from '@documenso/lib/errors/app-error';
+import { buildLogger } from '@documenso/lib/utils/logger';
 import * as trpcNext from '@documenso/trpc/server/adapters/next';
 import { createTrpcContext } from '@documenso/trpc/server/context';
 import { appRouter } from '@documenso/trpc/server/router';
@@ -11,7 +13,44 @@ export const config = {
   },
 };
 
+const logger = buildLogger();
+
 export default trpcNext.createNextApiHandler({
   router: appRouter,
   createContext: async ({ req, res }) => createTrpcContext({ req, res }),
+  onError(opts) {
+    const { error, path } = opts;
+
+    // Currently trialing changes with template and team router only.
+    if (!path || (!path.startsWith('template') && !path.startsWith('team'))) {
+      return;
+    }
+
+    // Always log the error for now.
+    console.error(error);
+
+    const appError = AppError.parseError(error.cause || error);
+
+    const isAppError = error.cause instanceof AppError;
+
+    // Only log AppErrors that are explicitly set to 500 or the error code
+    // is in the errorCodesToAlertOn list.
+    const isLoggableAppError =
+      isAppError && (appError.statusCode === 500 || errorCodesToAlertOn.includes(appError.code));
+
+    // Only log TRPC errors that are in the `errorCodesToAlertOn` list and is
+    // not an AppError.
+    const isLoggableTrpcError = !isAppError && errorCodesToAlertOn.includes(error.code);
+
+    if (isLoggableAppError || isLoggableTrpcError) {
+      logger.error(error, {
+        method: path,
+        context: {
+          appError: AppError.toJSON(appError),
+        },
+      });
+    }
+  },
 });
+
+const errorCodesToAlertOn = [AppErrorCode.UNKNOWN_ERROR, 'INTERNAL_SERVER_ERROR'];