feat: error when action handler is missing

deno.json

@@ -1,6 +1,6 @@
 {
   "name": "@valkyr/relay",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "exports": {
     ".": "./mod.ts",
     "./http": "./adapters/http.ts"

libraries/api.ts

@@ -126,7 +126,10 @@ export class Api<TRoutes extends Route[]> {
         if (result.success === false) {
           return toResponse(new BadRequestError("Invalid action input", z.prettifyError(result.error)));
         }
-        const output = (await action.state.handle?.(result.data)) ?? {};
+        if (action.state.handle === undefined) {
+          return toResponse(new InternalServerError(`Action '${action.state.name}' is missing handler.`));
+        }
+        const output = await action.state.handle(result.data);
         for (const key in output) {
           context[key] = output[key];
         }

libraries/relay.ts

@@ -24,6 +24,13 @@ export class Relay<TRoutes extends Route[]> {
     }
   }
 
+  /**
+   * Override relay url configuration.
+   */
+  set url(value: string) {
+    this.config.url = value;
+  }
+
   /**
    * Retrieve a route for the given method/path combination which can be further extended
    * for serving incoming third party requests.

tests/mocks/relay.ts

@@ -19,4 +19,5 @@ export const relay = new Relay({ url: "http://localhost:36573", adapter }, [
     .params({ userId: z.string().check(z.uuid()) })
     .body(UserSchema.omit({ id: true, createdAt: true })),
   route.delete("/users/:userId").params({ userId: z.string().check(z.uuid()) }),
+  route.get("/add-two").search({ a: z.coerce.number(), b: z.coerce.number() }).response(z.number()),
 ]);

tests/mocks/server.ts

@@ -1,5 +1,6 @@
 import { Api } from "../../libraries/api.ts";
 import { NotFoundError } from "../../mod.ts";
+import { addTwoNumbers } from "./actions.ts";
 import { relay } from "./relay.ts";
 import { User } from "./user.ts";
 
@@ -30,4 +31,8 @@ export const api = new Api([
   relay.route("DELETE", "/users/:userId").handle(async ({ userId }) => {
     users = users.filter((user) => user.id !== userId);
   }),
+  relay
+    .route("GET", "/add-two")
+    .actions([addTwoNumbers])
+    .handle(async ({ added }) => added),
 ]);

tests/route.test.ts

@@ -48,4 +48,8 @@ describe("Relay", () => {
 
     assertEquals(users.length, 0);
   });
+
+  it("should successfully run .actions", async () => {
+    assertEquals(await relay.get("/add-two", { a: 1, b: 1 }), 2);
+  });
 });