Fix optimisticResponse function return type

.api-reports/api-report-core.api.md

@@ -1391,9 +1391,10 @@ interface MutationBaseOptions<TData = any, TVariables = OperationVariables, TCon
     context?: TContext;
     errorPolicy?: ErrorPolicy;
     onQueryUpdated?: OnQueryUpdated<any>;
+    // Warning: (ae-forgotten-export) The symbol "IgnoreModifier" needs to be exported by the entry point index.d.ts
     optimisticResponse?: TData | ((vars: TVariables, { IGNORE }: {
         IGNORE: IgnoreModifier;
-    }) => TData);
+    }) => TData | IgnoreModifier);
     refetchQueries?: ((result: FetchResult<TData>) => InternalRefetchQueriesInclude) | InternalRefetchQueriesInclude;
     update?: MutationUpdaterFunction<TData, TVariables, TContext, TCache>;
     updateQueries?: MutationQueryReducersMap<TData>;

.api-reports/api-report-react.api.md

@@ -1119,9 +1119,10 @@ interface MutationBaseOptions<TData = any, TVariables = OperationVariables, TCon
     errorPolicy?: ErrorPolicy;
     // Warning: (ae-forgotten-export) The symbol "OnQueryUpdated" needs to be exported by the entry point index.d.ts
     onQueryUpdated?: OnQueryUpdated<any>;
+    // Warning: (ae-forgotten-export) The symbol "IgnoreModifier" needs to be exported by the entry point index.d.ts
     optimisticResponse?: TData | ((vars: TVariables, { IGNORE }: {
         IGNORE: IgnoreModifier;
-    }) => TData);
+    }) => TData | IgnoreModifier);
     refetchQueries?: ((result: FetchResult<TData>) => InternalRefetchQueriesInclude) | InternalRefetchQueriesInclude;
     // Warning: (ae-forgotten-export) The symbol "MutationUpdaterFunction" needs to be exported by the entry point index.d.ts
     update?: MutationUpdaterFunction<TData, TVariables, TContext, TCache>;

.api-reports/api-report-react_components.api.md

@@ -995,9 +995,10 @@ interface MutationBaseOptions<TData = any, TVariables = OperationVariables, TCon
     errorPolicy?: ErrorPolicy;
     // Warning: (ae-forgotten-export) The symbol "OnQueryUpdated" needs to be exported by the entry point index.d.ts
     onQueryUpdated?: OnQueryUpdated<any>;
+    // Warning: (ae-forgotten-export) The symbol "IgnoreModifier" needs to be exported by the entry point index.d.ts
     optimisticResponse?: TData | ((vars: TVariables, { IGNORE }: {
         IGNORE: IgnoreModifier;
-    }) => TData);
+    }) => TData | IgnoreModifier);
     refetchQueries?: ((result: FetchResult<TData>) => InternalRefetchQueriesInclude) | InternalRefetchQueriesInclude;
     // Warning: (ae-forgotten-export) The symbol "MutationUpdaterFunction" needs to be exported by the entry point index.d.ts
     update?: MutationUpdaterFunction<TData, TVariables, TContext, TCache>;

.api-reports/api-report-react_context.api.md

@@ -978,9 +978,10 @@ interface MutationBaseOptions<TData = any, TVariables = OperationVariables, TCon
     errorPolicy?: ErrorPolicy;
     // Warning: (ae-forgotten-export) The symbol "OnQueryUpdated" needs to be exported by the entry point index.d.ts
     onQueryUpdated?: OnQueryUpdated<any>;
+    // Warning: (ae-forgotten-export) The symbol "IgnoreModifier" needs to be exported by the entry point index.d.ts
     optimisticResponse?: TData | ((vars: TVariables, { IGNORE }: {
         IGNORE: IgnoreModifier;
-    }) => TData);
+    }) => TData | IgnoreModifier);
     refetchQueries?: ((result: FetchResult<TData>) => InternalRefetchQueriesInclude) | InternalRefetchQueriesInclude;
     // Warning: (ae-forgotten-export) The symbol "MutationUpdaterFunction" needs to be exported by the entry point index.d.ts
     update?: MutationUpdaterFunction<TData, TVariables, TContext, TCache>;

.api-reports/api-report-react_hoc.api.md

@@ -997,9 +997,10 @@ interface MutationBaseOptions<TData = any, TVariables = OperationVariables, TCon
     errorPolicy?: ErrorPolicy;
     // Warning: (ae-forgotten-export) The symbol "OnQueryUpdated" needs to be exported by the entry point index.d.ts
     onQueryUpdated?: OnQueryUpdated<any>;
+    // Warning: (ae-forgotten-export) The symbol "IgnoreModifier" needs to be exported by the entry point index.d.ts
     optimisticResponse?: TData | ((vars: TVariables, { IGNORE }: {
         IGNORE: IgnoreModifier;
-    }) => TData);
+    }) => TData | IgnoreModifier);
     refetchQueries?: ((result: FetchResult<TData>) => InternalRefetchQueriesInclude) | InternalRefetchQueriesInclude;
     // Warning: (ae-forgotten-export) The symbol "MutationUpdaterFunction" needs to be exported by the entry point index.d.ts
     update?: MutationUpdaterFunction<TData, TVariables, TContext, TCache>;

.api-reports/api-report-react_hooks.api.md

@@ -1068,9 +1068,10 @@ interface MutationBaseOptions<TData = any, TVariables = OperationVariables, TCon
     errorPolicy?: ErrorPolicy;
     // Warning: (ae-forgotten-export) The symbol "OnQueryUpdated" needs to be exported by the entry point index.d.ts
     onQueryUpdated?: OnQueryUpdated<any>;
+    // Warning: (ae-forgotten-export) The symbol "IgnoreModifier" needs to be exported by the entry point index.d.ts
     optimisticResponse?: TData | ((vars: TVariables, { IGNORE }: {
         IGNORE: IgnoreModifier;
-    }) => TData);
+    }) => TData | IgnoreModifier);
     refetchQueries?: ((result: FetchResult<TData>) => InternalRefetchQueriesInclude) | InternalRefetchQueriesInclude;
     // Warning: (ae-forgotten-export) The symbol "MutationUpdaterFunction" needs to be exported by the entry point index.d.ts
     update?: MutationUpdaterFunction<TData, TVariables, TContext, TCache>;

.api-reports/api-report-react_internal.api.md

@@ -1079,9 +1079,10 @@ interface MutationBaseOptions<TData = any, TVariables = OperationVariables, TCon
     errorPolicy?: ErrorPolicy;
     // Warning: (ae-forgotten-export) The symbol "OnQueryUpdated" needs to be exported by the entry point index.d.ts
     onQueryUpdated?: OnQueryUpdated<any>;
+    // Warning: (ae-forgotten-export) The symbol "IgnoreModifier" needs to be exported by the entry point index.d.ts
     optimisticResponse?: TData | ((vars: TVariables, { IGNORE }: {
         IGNORE: IgnoreModifier;
-    }) => TData);
+    }) => TData | IgnoreModifier);
     refetchQueries?: ((result: FetchResult<TData>) => InternalRefetchQueriesInclude) | InternalRefetchQueriesInclude;
     // Warning: (ae-forgotten-export) The symbol "MutationUpdaterFunction" needs to be exported by the entry point index.d.ts
     update?: MutationUpdaterFunction<TData, TVariables, TContext, TCache>;

.api-reports/api-report-react_ssr.api.md

@@ -963,9 +963,10 @@ interface MutationBaseOptions<TData = any, TVariables = OperationVariables, TCon
     errorPolicy?: ErrorPolicy;
     // Warning: (ae-forgotten-export) The symbol "OnQueryUpdated" needs to be exported by the entry point index.d.ts
     onQueryUpdated?: OnQueryUpdated<any>;
+    // Warning: (ae-forgotten-export) The symbol "IgnoreModifier" needs to be exported by the entry point index.d.ts
     optimisticResponse?: TData | ((vars: TVariables, { IGNORE }: {
         IGNORE: IgnoreModifier;
-    }) => TData);
+    }) => TData | IgnoreModifier);
     refetchQueries?: ((result: FetchResult<TData>) => InternalRefetchQueriesInclude) | InternalRefetchQueriesInclude;
     // Warning: (ae-forgotten-export) The symbol "MutationUpdaterFunction" needs to be exported by the entry point index.d.ts
     update?: MutationUpdaterFunction<TData, TVariables, TContext, TCache>;

.api-reports/api-report-testing.api.md

@@ -1084,9 +1084,10 @@ interface MutationBaseOptions<TData = any, TVariables = OperationVariables, TCon
     errorPolicy?: ErrorPolicy;
     // Warning: (ae-forgotten-export) The symbol "OnQueryUpdated" needs to be exported by the entry point index.d.ts
     onQueryUpdated?: OnQueryUpdated<any>;
+    // Warning: (ae-forgotten-export) The symbol "IgnoreModifier" needs to be exported by the entry point index.d.ts
     optimisticResponse?: TData | ((vars: TVariables, { IGNORE }: {
         IGNORE: IgnoreModifier;
-    }) => TData);
+    }) => TData | IgnoreModifier);
     refetchQueries?: ((result: FetchResult<TData>) => InternalRefetchQueriesInclude) | InternalRefetchQueriesInclude;
     // Warning: (ae-forgotten-export) The symbol "MutationUpdaterFunction" needs to be exported by the entry point index.d.ts
     update?: MutationUpdaterFunction<TData, TVariables, TContext, TCache>;

.api-reports/api-report-testing_core.api.md

@@ -1039,9 +1039,10 @@ interface MutationBaseOptions<TData = any, TVariables = OperationVariables, TCon
     errorPolicy?: ErrorPolicy;
     // Warning: (ae-forgotten-export) The symbol "OnQueryUpdated" needs to be exported by the entry point index.d.ts
     onQueryUpdated?: OnQueryUpdated<any>;
+    // Warning: (ae-forgotten-export) The symbol "IgnoreModifier" needs to be exported by the entry point index.d.ts
     optimisticResponse?: TData | ((vars: TVariables, { IGNORE }: {
         IGNORE: IgnoreModifier;
-    }) => TData);
+    }) => TData | IgnoreModifier);
     refetchQueries?: ((result: FetchResult<TData>) => InternalRefetchQueriesInclude) | InternalRefetchQueriesInclude;
     // Warning: (ae-forgotten-export) The symbol "MutationUpdaterFunction" needs to be exported by the entry point index.d.ts
     update?: MutationUpdaterFunction<TData, TVariables, TContext, TCache>;

.api-reports/api-report-utilities.api.md

@@ -1687,9 +1687,10 @@ interface MutationBaseOptions<TData = any, TVariables = OperationVariables, TCon
     errorPolicy?: ErrorPolicy;
     // Warning: (ae-forgotten-export) The symbol "OnQueryUpdated" needs to be exported by the entry point index.d.ts
     onQueryUpdated?: OnQueryUpdated<any>;
+    // Warning: (ae-forgotten-export) The symbol "IgnoreModifier" needs to be exported by the entry point index.d.ts
     optimisticResponse?: TData | ((vars: TVariables, { IGNORE }: {
         IGNORE: IgnoreModifier;
-    }) => TData);
+    }) => TData | IgnoreModifier);
     refetchQueries?: ((result: FetchResult<TData>) => InternalRefetchQueriesInclude) | InternalRefetchQueriesInclude;
     // Warning: (ae-forgotten-export) The symbol "MutationUpdaterFunction" needs to be exported by the entry point index.d.ts
     update?: MutationUpdaterFunction<TData, TVariables, TContext, TCache>;

.api-reports/api-report.api.md

@@ -1572,9 +1572,10 @@ interface MutationBaseOptions<TData = any, TVariables = OperationVariables, TCon
     context?: TContext;
     errorPolicy?: ErrorPolicy;
     onQueryUpdated?: OnQueryUpdated<any>;
+    // Warning: (ae-forgotten-export) The symbol "IgnoreModifier" needs to be exported by the entry point index.d.ts
     optimisticResponse?: TData | ((vars: TVariables, { IGNORE }: {
         IGNORE: IgnoreModifier;
-    }) => TData);
+    }) => TData | IgnoreModifier);
     refetchQueries?: ((result: FetchResult<TData>) => InternalRefetchQueriesInclude) | InternalRefetchQueriesInclude;
     update?: MutationUpdaterFunction<TData, TVariables, TContext, TCache>;
     updateQueries?: MutationQueryReducersMap<TData>;

.changeset/pink-flowers-switch.md

@@ -0,0 +1,5 @@
+---
+"@apollo/client": patch
+---
+
+Allow `IgnoreModifier` to be returned from a `optimisticResponse` function when inferring from a `TypedDocumentNode` when used with a generic argument.

src/__tests__/optimistic.ts

@@ -9,6 +9,7 @@ import {
   ApolloLink,
   ApolloCache,
   MutationQueryReducersMap,
+  TypedDocumentNode,
 } from "../core";
 
 import { QueryManager } from "../core/QueryManager";
@@ -1089,6 +1090,25 @@ describe("optimistic mutation results", () => {
         resolve();
       }
     );
+
+    it("allows IgnoreModifier as return value when inferring from a TypedDocumentNode mutation", () => {
+      const mutation: TypedDocumentNode<{ bar: string }> = gql`
+        mutation foo {
+          foo {
+            bar
+          }
+        }
+      `;
+
+      const client = new ApolloClient({
+        cache: new InMemoryCache(),
+      });
+
+      client.mutate({
+        mutation,
+        optimisticResponse: (vars, { IGNORE }) => IGNORE,
+      });
+    });
   });
 
   describe("optimistic updates using `updateQueries`", () => {

src/core/watchQueryOptions.ts

@@ -220,7 +220,10 @@ export interface MutationBaseOptions<
   /** {@inheritDoc @apollo/client!MutationOptionsDocumentation#optimisticResponse:member} */
   optimisticResponse?:
     | TData
-    | ((vars: TVariables, { IGNORE }: { IGNORE: IgnoreModifier }) => TData);
+    | ((
+        vars: TVariables,
+        { IGNORE }: { IGNORE: IgnoreModifier }
+      ) => TData | IgnoreModifier);
 
   /** {@inheritDoc @apollo/client!MutationOptionsDocumentation#updateQueries:member} */
   updateQueries?: MutationQueryReducersMap<TData>;