fix: Fetcher interface data type (#191)

src/https.ts

@@ -29,7 +29,7 @@ export interface Fetcher {
   fetch: (
     uri: string,
     requestOptions?: FetchRequestOptions,
-    data?: Buffer
+    data?: ArrayBuffer
   ) => Promise<ArrayBuffer>;
 }
 

tests/vite-app/cypress/e2e/fetcher.cy.ts

@@ -0,0 +1,24 @@
+/// <reference types="cypress" />
+import { SimpleFetcher } from "aws-jwt-verify/https";
+
+describe("Fetcher", () => {
+  let tokenData;
+
+  beforeEach(() => {
+    cy.fixture("example-token-data.json").then((data) => {
+      tokenData = data;
+    });
+  });
+
+  it("Simple JSON fetcher works", () => {
+    cy.visit("/");
+
+    cy.fixture("example-JWKS.json").then((jwksData) => {
+      const fetcher = new SimpleFetcher();
+
+      fetcher.fetch(tokenData.JWKSURI).then((jwks) => {
+        expect(jwks).to.deep.equal(jwksData);
+      });
+    });
+  });
+});

tests/vite-app/tsconfig.json

@@ -13,7 +13,7 @@
     "noUnusedLocals": true,
     "noUnusedParameters": true,
     "noImplicitReturns": true,
-    "skipLibCheck": true
+    "skipLibCheck": false
   },
   "include": ["src"]
 }