Fix Request parameter being ignored by client methods

.changeset/empty-rooms-attack.md

@@ -0,0 +1,5 @@
+---
+"openapi-fetch": patch
+---
+
+Fix Request parameter being ignored by client methods

packages/openapi-fetch/src/index.js

@@ -109,7 +109,7 @@ export default function createClient(clientOptions) {
 
     let id;
     let options;
-    let request = new CustomRequest(
+    let request = new Request(
       createFinalURL(schemaPath, { baseUrl: finalBaseUrl, params, querySerializer }),
       requestInit,
     );
@@ -143,7 +143,7 @@ export default function createClient(clientOptions) {
             id,
           });
           if (result) {
-            if (result instanceof CustomRequest) {
+            if (result instanceof Request) {
               request = result;
             } else if (result instanceof Response) {
               response = result;

packages/openapi-fetch/test/common/request.test.ts

@@ -296,7 +296,7 @@ describe("request", () => {
   });
 
   test("uses provided Request class", async () => {
-    // santity check to make sure the profided fetch function is actually called
+    // sanity check to make sure the provided fetch function is actually called
     expect.assertions(1);
 
     class SpecialRequestImplementation extends Request {}
@@ -316,6 +316,26 @@ describe("request", () => {
     await client.GET("/resources");
   });
 
+  test("Can use custom Request class", async () => {
+    // sanity check to make sure the provided fetch function is actually called
+    expect.assertions(1);
+
+    class SpecialRequestImplementation extends Request {}
+
+    const customFetch = async (input: Request) => {
+      // make sure that the request is actually an instance of the custom request we provided
+      expect(input).instanceOf(SpecialRequestImplementation);
+      return Promise.resolve(Response.json({ hello: "world" }));
+    };
+
+    const client = createClient<paths>({
+      baseUrl: "https://fakeurl.example",
+      fetch: customFetch,
+    });
+
+    await client.GET("/resources", { Request: SpecialRequestImplementation });
+  });
+
   test("can attach custom properties to request", async () => {
     function createCustomFetch(data: any) {
       const response = {