feat: create get_funkit_stripe_checkout_status endpoint

apps/data-backend/src/router.ts

@@ -10,6 +10,7 @@ import transactionsRoute from "./routes/indexer/transactions";
 import allTransactionsRoute from "./routes/indexer/all-transactions";
 import createFunkitStripeCheckout from "./routes/funkit/create_funkit_stripe_checkout";
 import getFunkitStripeCheckoutQuote from "./routes/funkit/get_funkit_stripe_checkout_quote";
+import getFunkitStripeCheckoutStatus from "./routes/funkit/get_funkit_stripe_checkout_status";
 
 function declareRoutes(fastify: FastifyInstance) {
   fastify.register(buyCoinRoute);
@@ -19,9 +20,10 @@ function declareRoutes(fastify: FastifyInstance) {
   fastify.register(holdingsRoute);
   fastify.register(tokenStatsRoute);
   fastify.register(transactionsRoute);
+  fastify.register(allTransactionsRoute);
   fastify.register(createFunkitStripeCheckout);
   fastify.register(getFunkitStripeCheckoutQuote);
-  fastify.register(allTransactionsRoute);
+  fastify.register(getFunkitStripeCheckoutStatus);
 }
 
 export default declareRoutes;

apps/data-backend/src/routes/funkit/get_funkit_stripe_checkout_status.ts

@@ -0,0 +1,49 @@
+import { getCheckoutByDepositAddress } from "@funkit/api-base";
+import type { FastifyInstance, RouteOptions } from "fastify";
+
+const FUNKIT_API_KEY = process.env.FUNKIT_API_KEY || "";
+
+async function getFunkitStripeCheckoutStatus(
+  fastify: FastifyInstance,
+  _options: RouteOptions
+) {
+  fastify.get(
+    "/get-funkit-stripe-checkout-status",
+
+    async (request, reply) => {
+      const { funkitDepositAddress } = request.query as {
+        funkitDepositAddress: string;
+      };
+
+      if (!funkitDepositAddress) {
+        return reply
+          .status(400)
+          .send({ message: "funkitDepositAddress is required." });
+      }
+
+      try {
+        const checkoutItem = await getCheckoutByDepositAddress({
+          depositAddress: funkitDepositAddress as `0x${string}`,
+          apiKey: FUNKIT_API_KEY
+        });
+        if (!checkoutItem || !checkoutItem?.depositAddr) {
+          return reply
+            .status(500)
+            .send({ message: "Failed to get a funkit checkout." });
+        }
+        return reply.send({
+          state: checkoutItem.state
+        });
+      } catch (error: any) {
+        if (error?.message?.includes("InvalidParameterError")) {
+          return reply
+            .status(500)
+            .send({ message: "Failed to get a funkit checkout." });
+        }
+        return reply.status(500).send({ message: "Internal server error" });
+      }
+    }
+  );
+}
+
+export default getFunkitStripeCheckoutStatus;