Interngraph server error class

Summary: We were losing the request body which meant that a clear request code could not be used, by adding an error subclass we can check for it in catch clause

Reviewed By: passy

Differential Revision: D59961466

fbshipit-source-id: 490e831759d90d4e83153daf4b7a4baa5b38dbdb

desktop/flipper-common/src/index.tsx

@@ -55,6 +55,7 @@ export {
   isError,
   isAuthError,
   FlipperServerDisconnectedError,
+  InternGraphServerError,
   FlipperServerTimeoutError,
   getStringFromErrorLike,
   getErrorFromErrorLike,

desktop/flipper-common/src/utils/errors.tsx

@@ -77,6 +77,16 @@ export class ConnectivityError extends Error {
   name: 'ConnectivityError';
 }
 
+export class InternGraphServerError extends Error {
+  body: any;
+  constructor(msg: string, body: any) {
+    super(msg);
+    this.name = 'InternGraphServerError';
+    this.body = body;
+  }
+  name: 'InternGraphServerError';
+}
+
 export class UserUnauthorizedError extends Error {
   constructor(msg: string = 'User unauthorized.') {
     super(msg);

desktop/flipper-plugin/src/index.tsx

@@ -212,4 +212,5 @@ export {
   ServerAddOn,
   ServerAddOnPluginConnection,
   FlipperServerForServerAddOn,
+  InternGraphServerError,
 } from 'flipper-common';