Handle 429 from auto-model service (#2474)

Author: charisk

extensions/ql-vscode/src/data-extensions-editor/data-extensions-editor-view.ts

@@ -6,6 +6,7 @@ import {
   window,
   workspace,
 } from "vscode";
+import { RequestError } from "@octokit/request-error";
 import {
   AbstractWebview,
   WebviewPanelConfig,
@@ -38,7 +39,7 @@ import { createDataExtensionYaml, loadDataExtensionYaml } from "./yaml";
 import { ExternalApiUsage } from "./external-api-usage";
 import { ModeledMethod } from "./modeled-method";
 import { ExtensionPackModelFile } from "./shared/extension-pack";
-import { autoModel } from "./auto-model-api";
+import { autoModel, ModelRequest, ModelResponse } from "./auto-model-api";
 import {
   createAutoModelRequest,
   parsePredictedClassifications,
@@ -401,7 +402,10 @@ export class DataExtensionsEditorView extends AbstractWebview<
       message: "Sending request",
     });
 
-    const response = await autoModel(this.app.credentials, request);
+    const response = await this.callAutoModelApi(request);
+    if (!response) {
+      return;
+    }
 
     await this.showProgress({
       step: 2500,
@@ -459,4 +463,23 @@ export class DataExtensionsEditorView extends AbstractWebview<
       message: "",
     });
   }
+
+  private async callAutoModelApi(
+    request: ModelRequest,
+  ): Promise<ModelResponse | null> {
+    try {
+      return await autoModel(this.app.credentials, request);
+    } catch (e) {
+      await this.clearProgress();
+
+      if (e instanceof RequestError && e.status === 429) {
+        void showAndLogExceptionWithTelemetry(
+          redactableError(e)`Rate limit hit, please try again soon.`,
+        );
+        return null;
+      } else {
+        throw e;
+      }
+    }
+  }
 }