Merge pull request jagregory#350 from root0x/openid-configuration

fix: add openid-configuration endpoint

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:14-alpine as builder
+FROM node:16-alpine as builder
 WORKDIR /app
 
 # dependencies
@@ -20,4 +20,4 @@ EXPOSE 9229
 ENV HOST 0.0.0.0
 ENV PORT 9229
 VOLUME /app/.cognito
-ENTRYPOINT ["node", "/app/start.js"]
+ENTRYPOINT ["node", "/app/start.js"]

integration-tests/server.test.ts

@@ -126,4 +126,20 @@ describe("HTTP server", () => {
       });
     });
   });
+
+  describe("OpenId Configuration Endpoint", () => {
+    it("responds with open id configuration", async () => {
+      const server = createServer(jest.fn(), MockLogger as any);
+
+      const response = await supertest(server.application).get(
+        "/any-user-pool/.well-known/openid-configuration"
+      );
+      expect(response.status).toEqual(200);
+      expect(response.body).toEqual({
+        id_token_signing_alg_values_supported: ["RS256"],
+        jwks_uri: `http://localhost:9229/any-user-pool/.well-known/jwks.json`,
+        issuer: `http://localhost:9229/any-user-pool`,
+      });
+    });
+  });
 });

src/server/server.ts

@@ -55,6 +55,14 @@ export const createServer = (
     });
   });
 
+  app.get("/:userPoolId/.well-known/openid-configuration", (req, res) => {
+    res.status(200).json({
+      id_token_signing_alg_values_supported: ["RS256"],
+      jwks_uri: `http://localhost:9229/${req.params.userPoolId}/.well-known/jwks.json`,
+      issuer: `http://localhost:9229/${req.params.userPoolId}`,
+    });
+  });
+
   app.get("/health", (req, res) => {
     res.status(200).json({ ok: true });
   });