Remove redeemId field from redeem response

- Remove redeemId from successful redemption response
- Remove redeemId from error response
- Update swagger documentation to remove redeemId field
- Update README examples to remove redeemId field
- Clean up API response format for better simplicity

README.md

@@ -76,7 +76,6 @@ Redeem a Cashu token to a Lightning address. Lightning address is optional - if
 ```json
 {
   "success": true,
-  "redeemId": "8e99101e-d034-4d2e-9ccf-dfda24d26762",
   "paid": true,
   "amount": 21000,
   "invoiceAmount": 20580,
@@ -94,7 +93,6 @@ Redeem a Cashu token to a Lightning address. Lightning address is optional - if
 ```json
 {
   "success": true,
-  "redeemId": "8e99101e-d034-4d2e-9ccf-dfda24d26762",
   "paid": true,
   "amount": 21000,
   "invoiceAmount": 20580,

env.example

@@ -4,7 +4,7 @@ NODE_ENV=development
 
 # Security Configuration
 ALLOW_REDEEM_DOMAINS=*
-API_SECRET=your-secret-key-here
+
 
 # Default Lightning Address (used when no address is provided in redeem requests)
 DEFAULT_LIGHTNING_ADDRESS=admin@your-domain.com

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "cashu-redeem-api",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "cashu-redeem-api",
-      "version": "1.0.0",
+      "version": "1.1.0",
       "license": "MIT",
       "dependencies": {
         "@cashu/cashu-ts": "^1.1.0",
@@ -15,6 +15,7 @@
         "cors": "^2.8.5",
         "dotenv": "^16.4.5",
         "express": "^4.19.2",
+        "express-rate-limit": "^8.0.0",
         "swagger-jsdoc": "^6.2.8",
         "swagger-ui-express": "^5.0.1",
         "uuid": "^10.0.0"
@@ -26,6 +27,10 @@
       "engines": {
         "node": ">=18.0.0",
         "npm": ">=8.0.0"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/Michilis"
       }
     },
     "node_modules/@apidevtools/json-schema-ref-parser": {
@@ -1464,6 +1469,23 @@
         "url": "https://opencollective.com/express"
       }
     },
+    "node_modules/express-rate-limit": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/express-rate-limit/-/express-rate-limit-8.0.0.tgz",
+      "integrity": "sha512-FXEAp2ccTeN1ZSO+sPHRHWB0/CrTP5asFBjUaNeD9A0v3iPmgFbLu24vqPjiM9utszI58VGlMokjXQ0W9Dbmjw==",
+      "dependencies": {
+        "ip": "2.0.1"
+      },
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/express-rate-limit"
+      },
+      "peerDependencies": {
+        "express": ">= 4.11"
+      }
+    },
     "node_modules/fast-deep-equal": {
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
@@ -1961,6 +1983,11 @@
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
       "license": "ISC"
     },
+    "node_modules/ip": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/ip/-/ip-2.0.1.tgz",
+      "integrity": "sha512-lJUL9imLTNi1ZfXT+DU6rBBdbiKGBuay9B6xGSPVjUeQwaH1RIGqef8RZkUtHioLmSNpPR5M4HVKJGm1j8FWVQ=="
+    },
     "node_modules/ipaddr.js": {
       "version": "1.9.1",
       "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",

server.js

@@ -305,9 +305,6 @@ app.post('/api/decode', asyncHandler(async (req, res) => {
  *                 error:
  *                   type: string
  *                   example: "This token has already been spent and cannot be redeemed again"
- *                 redeemId:
- *                   type: string
- *                   format: uuid
  *                 errorType:
  *                   type: string
  *                   example: "token_already_spent"
@@ -324,9 +321,6 @@ app.post('/api/decode', asyncHandler(async (req, res) => {
  *                 error:
  *                   type: string
  *                   example: "Token amount is insufficient to cover the minimum fee"
- *                 redeemId:
- *                   type: string
- *                   format: uuid
  *                 errorType:
  *                   type: string
  *                   example: "insufficient_funds"
@@ -355,7 +349,6 @@ app.post('/api/redeem', asyncHandler(async (req, res) => {
     if (result.success) {
       const response = {
         success: true,
-        redeemId: result.redeemId,
         paid: result.paid,
         amount: result.amount,
         invoiceAmount: result.invoiceAmount,
@@ -400,7 +393,6 @@ app.post('/api/redeem', asyncHandler(async (req, res) => {
       res.status(statusCode).json({
         success: false,
         error: result.error,
-        redeemId: result.redeemId,
         errorType: statusCode === 409 ? 'token_already_spent' : 
                    statusCode === 422 ? 'insufficient_funds' : 'validation_error'
       });

swagger.config.js

@@ -138,12 +138,6 @@ const options = {
               type: 'boolean',
               example: true
             },
-            redeemId: {
-              type: 'string',
-              format: 'uuid',
-              description: 'Unique redemption ID for tracking',
-              example: '8e99101e-d034-4d2e-9ccf-dfda24d26762'
-            },
             paid: {
               type: 'boolean',
               description: 'Whether the payment was successful',