Session keys subscription payments

session-keys-subscription-payments/.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/versions
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# env files (can opt-in for committing if needed)
+.env*
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts
+
+contracts/lib
+contracts/cache
+contracts/zkout
+contracts/out

session-keys-subscription-payments/README.md

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+# Abstract Global Wallet with Next.js
+
+This example showcases how to use the Abstract Global Wallet react SDK inside a [Next.js](https://nextjs.org/) application.
+
+## Local Development
+
+1. Get a copy of the `agw-nextjs` example directory from the Abstract Examples repository:
+
+   ```bash
+   mkdir -p agw-nextjs && curl -L https://codeload.github.com/Abstract-Foundation/examples/tar.gz/main | tar -xz --strip=2 -C agw-nextjs examples-main/agw-nextjs && cd agw-nextjs
+   ```
+
+2. Install dependencies
+
+   ```bash
+   npm install
+   ```
+
+3. Run the development server
+
+   ```bash
+   npm run dev
+   ```
+
+Visit [http://localhost:3000](http://localhost:3000) to see the app.
+
+## Useful Links
+
+- [Docs](https://docs.abs.xyz/)
+- [Official Site](https://abs.xyz/)
+- [GitHub](https://github.com/Abstract-Foundation)
+- [X](https://x.com/AbstractChain)
+- [Discord](https://discord.com/invite/abstractchain)

session-keys-subscription-payments/contracts/foundry.toml

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+[profile.default]
+src = 'src'
+libs = ['lib']
+fallback_oz = true
+
+[profile.default.zksync]
+enable_eravm_extensions = true # Note: System contract calls (NonceHolder and ContractDeployer) can only be called with this set to true
+
+[etherscan]
+abstractTestnet = { chain = "11124", url = "", key = ""} # You can replace these values or leave them blank to override via CLI
+abstractMainnet = { chain = "2741", url = "", key = ""} # You can replace these values or leave them blank to override via CLI

session-keys-subscription-payments/contracts/src/SubscriptionService.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.24;
+
+/**
+ * @title SubscriptionService
+ * @dev Minimal contract for subscription management
+ */
+contract SubscriptionService {
+    uint256 public constant subscriptionFee = 0.0001 ether;
+    uint256 public constant subscriptionDuration = 15 minutes;
+
+    mapping(address => uint256) public subscriptionExpiry;
+
+    event NewSubscription(address indexed subscriber, uint256 expiresAt);
+
+    /**
+     * @dev Subscribe to the service
+     */
+    function subscribe() external payable {
+        require(msg.value == subscriptionFee, "Incorrect payment amount");
+
+        subscriptionExpiry[msg.sender] = block.timestamp + subscriptionDuration;
+
+        emit NewSubscription(msg.sender, subscriptionExpiry[msg.sender]);
+    }
+
+    /**
+     * @dev Check if an address has an active subscription
+     */
+    function isSubscribed(address user) external view returns (bool) {
+        return subscriptionExpiry[user] > block.timestamp;
+    }
+}

session-keys-subscription-payments/eslint.config.mjs

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+import { dirname } from "path";
+import { fileURLToPath } from "url";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+});
+
+const eslintConfig = [
+  ...compat.extends("next/core-web-vitals", "next/typescript"),
+];
+
+export default eslintConfig;

session-keys-subscription-payments/next.config.ts

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+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {
+  /* config options here */
+};
+
+export default nextConfig;

session-keys-subscription-payments/package.json

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+{
+  "name": "agw-nextjs",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint"
+  },
+  "dependencies": {
+    "@abstract-foundation/agw-client": "latest",
+    "@abstract-foundation/agw-react": "latest",
+    "@privy-io/cross-app-connect": "^0.2.1",
+    "@tanstack/react-query": "^5.71.5",
+    "next": "15.2.4",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "viem": "^2.25.0",
+    "wagmi": "^2.14.16"
+  },
+  "devDependencies": {
+    "@eslint/eslintrc": "^3",
+    "@tailwindcss/postcss": "^4",
+    "@types/node": "^20",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
+    "eslint": "^9",
+    "eslint-config-next": "15.2.4",
+    "tailwindcss": "^4",
+    "typescript": "^5"
+  },
+  "packageManager": "pnpm@9.15.4+sha512.b2dc20e2fc72b3e18848459b37359a32064663e5627a51e4c74b2c29dd8e8e0491483c3abb40789cfd578bf362fb6ba8261b05f0387d76792ed6e23ea3b1b6a0"
+}