From 7d0755695ed48cb5858f24973ffabc26d36cf081 Mon Sep 17 00:00:00 2001
From: Franco NG <franco.ng@lightcurve.io>
Date: Thu, 11 Jan 2024 14:16:23 +0100
Subject: [PATCH] Update backend structure

---
 packages/claim-backend/src/check.ts   | 22 ++++++++++++++++
 packages/claim-backend/src/index.ts   | 36 ++-------------------------
 packages/claim-backend/src/leafMap.ts | 18 ++++++++++++++
 3 files changed, 42 insertions(+), 34 deletions(-)
 create mode 100644 packages/claim-backend/src/check.ts
 create mode 100644 packages/claim-backend/src/leafMap.ts

diff --git a/packages/claim-backend/src/check.ts b/packages/claim-backend/src/check.ts
new file mode 100644
index 0000000..90f5da7
--- /dev/null
+++ b/packages/claim-backend/src/check.ts
@@ -0,0 +1,22 @@
+import { Request, Response} from "express";
+import {address as addressUtil} from "@liskhq/lisk-cryptography";
+import leafMap from "./leafMap";
+
+export function check (req: Request, res: Response) {
+  const { address } = req.body;
+  try {
+    addressUtil.validateLisk32Address(address);
+  } catch (_) {
+    res.status(400).json({
+      error: true,
+      message: `'${address}' is not a valid address.`,
+    });
+    return;
+  }
+
+  if (!leafMap[address]) {
+    res.status(400).json({ error: true, message: `${address} has no eligible claim.` });
+    return;
+  }
+  res.json(leafMap[address]);
+}
\ No newline at end of file
diff --git a/packages/claim-backend/src/index.ts b/packages/claim-backend/src/index.ts
index 27d1880..138288c 100644
--- a/packages/claim-backend/src/index.ts
+++ b/packages/claim-backend/src/index.ts
@@ -1,44 +1,12 @@
 import express, { Express } from 'express';
-import { address as addressUtil } from '@liskhq/lisk-cryptography';
-import * as fs from 'fs';
-import { Leaf } from './interface';
+import {check} from "./check";
 
 const app: Express = express();
 
 app.use(express.json());
 app.use(express.urlencoded({ extended: true }));
 
-const { leaves } = JSON.parse(
-	fs.readFileSync('../../data/example/merkle-tree-result-detailed.json', 'utf-8'),
-);
-
-const leafMap: {
-	[lskAddress: string]: Leaf;
-} = {};
-
-for (const leaf of leaves) {
-	leafMap[leaf.lskAddress] = leaf;
-}
-
-console.log(`${Object.keys(leafMap).length} Leaves loaded`);
-app.post('/check', (req: express.Request, res: express.Response) => {
-	const { address } = req.body;
-	try {
-		addressUtil.validateLisk32Address(address);
-	} catch (_) {
-		res.status(400).json({
-			error: true,
-			message: `'${address}' is not a valid address.`,
-		});
-		return;
-	}
-
-	if (!leafMap[address]) {
-		res.status(400).json({ error: true, message: `${address} has no eligible claim.` });
-		return;
-	}
-	res.json(leafMap[address]);
-});
+app.post('/check', check);
 
 const PORT = process.env.PORT || 3000;
 
diff --git a/packages/claim-backend/src/leafMap.ts b/packages/claim-backend/src/leafMap.ts
new file mode 100644
index 0000000..882cab6
--- /dev/null
+++ b/packages/claim-backend/src/leafMap.ts
@@ -0,0 +1,18 @@
+import fs from "fs";
+import {Leaf} from "./interface";
+
+const { leaves } = JSON.parse(
+  fs.readFileSync('../../data/example/merkle-tree-result-detailed.json', 'utf-8'),
+);
+
+const leafMap: {
+  [lskAddress: string]: Leaf;
+} = {};
+
+for (const leaf of leaves) {
+  leafMap[leaf.lskAddress] = leaf;
+}
+
+console.log(`LeafMap: ${Object.keys(leafMap).length} Leaves loaded`);
+
+export default leafMap;
\ No newline at end of file