Fix

.changeset/chilled-bees-lick.md

@@ -0,0 +1,5 @@
+---
+'@graphql-mesh/serve-runtime': patch
+---
+
+Fix the issue when you go to landing page then GraphiQL, queries are not executed

packages/fusion/runtime/src/unifiedGraphManager.ts

@@ -77,7 +77,7 @@ export class UnifiedGraphManager<TContext> {
   private inContextSDK;
   private initialUnifiedGraph$: MaybePromise<true>;
   private disposableStack = new AsyncDisposableStack();
-  private _transportEntryMap: Record<string, TransportEntry>;
+  _transportEntryMap: Record<string, TransportEntry>;
   private _transportExecutorStack: AsyncDisposableStack;
   constructor(private opts: UnifiedGraphManagerOptions<TContext>) {
     this.handleUnifiedGraph = opts.handleUnifiedGraph || handleFederationSupergraph;
@@ -185,10 +185,6 @@ export class UnifiedGraphManager<TContext> {
     );
   }
 
-  public getTransportEntryMap() {
-    return mapMaybePromise(this.ensureUnifiedGraph(), () => this._transportEntryMap);
-  }
-
   public getUnifiedGraph() {
     return mapMaybePromise(this.ensureUnifiedGraph(), () => this.unifiedGraph);
   }

packages/serve-runtime/src/createServeRuntime.ts

@@ -209,20 +209,24 @@ export function createServeRuntime<TContext extends Record<string, any> = Record
     disposableStack.use(unifiedGraphManager);
     subgraphInformationHTMLRenderer = async () => {
       const htmlParts: string[] = [];
-      let supergraphLoadedPlace: string;
+      let supergraphLoadedPlace = './supergraph.graphql';
       if ('hive' in config && config.hive.endpoint) {
         supergraphLoadedPlace = 'Hive CDN <br>' + config.hive.endpoint;
       } else if ('supergraph' in config) {
         if (typeof config.supergraph === 'function') {
           const fnName = config.supergraph.name || '';
           supergraphLoadedPlace = `a custom loader ${fnName}`;
+        } else if (typeof config.supergraph === 'string') {
+          supergraphLoadedPlace = config.supergraph;
         }
       }
       let loaded = false;
       let loadError: Error;
-      let transportEntryMap: Record<string, TransportEntry>;
       try {
-        transportEntryMap = await unifiedGraphManager.getTransportEntryMap();
+        // TODO: Workaround for the issue
+        // When you go to landing page, then GraphiQL, GW stops working
+        const schema = await getSchema();
+        schemaChanged(schema);
         loaded = true;
       } catch (e) {
         loaded = false;
@@ -233,8 +237,8 @@ export function createServeRuntime<TContext extends Record<string, any> = Record
         htmlParts.push(`<p><strong>Source: </strong> <i>${supergraphLoadedPlace}</i></p>`);
         htmlParts.push(`<table>`);
         htmlParts.push(`<tr><th>Subgraph</th><th>Transport</th><th>Location</th></tr>`);
-        for (const subgraphName in transportEntryMap) {
-          const transportEntry = transportEntryMap[subgraphName];
+        for (const subgraphName in unifiedGraphManager._transportEntryMap) {
+          const transportEntry = unifiedGraphManager._transportEntryMap[subgraphName];
           htmlParts.push(`<tr>`);
           htmlParts.push(`<td>${subgraphName}</td>`);
           htmlParts.push(`<td>${transportEntry.kind}</td>`);

packages/serve-runtime/src/useFetchDebug.ts

@@ -1,7 +1,7 @@
 import { loggerForExecutionRequest } from '@graphql-mesh/fusion-runtime';
 import type { Logger } from '@graphql-mesh/types';
 import type { MeshServePlugin } from './types';
-import { requestIdMap } from './useRequestId';
+import { requestIdMap } from './useRequestId.js';
 
 export function useFetchDebug<TContext>({ logger }: { logger: Logger }): MeshServePlugin<TContext> {
   return {