Create README.md

blockchain_integration/pi_network/iot_integration/README.md

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+# IoT Payment Service
+
+This IoT Payment Service allows IoT devices to make payments using Ethereum smart contracts. The service provides endpoints to process payments and manage IoT devices.
+
+## Requirements
+
+- Python 3.x
+- Flask
+- Web3.py
+- JSON
+
+## Installation
+
+1. **Clone the repository**:
+   ```bash
+   1 git clone https://github.com/KOSASIH/pi-nexus-autonomous-banking-network.git
+   2 cd iot-payment-service
+   ```
+
+2. **Install the required Python packages**:
+
+   ```bash
+   1 pip install Flask web3
+   ```
+
+3. Set up environment variables: Create a .env file in the root directory and add the following variables:
+
+   ```plaintext
+   1 ETH_NODE_URL=https://your.ethereum.node
+   2 CONTRACT_ADDRESS=YOUR_CONTRACT_ADDRESS
+   3 PRIVATE_KEY=YOUR_PRIVATE_KEY
+
+4. **Create a JSON file for the smart contract ABI**: Save your smart contract ABI in a file named contract_abi.json in the same directory as iot_payment_service.py.
+
+### Running the Service
+
+1. **Run the Flask application**:
+
+   ```bash
+   1 python iot_payment_service.py
+   ```
+2. **Open your web browser** and navigate to http://127.0.0.1:5000/api/iot/devices to view the list of IoT devices.
+
+### API Endpoints
+
+1. **Get IoT Devices**
+- **Endpoint**: /api/iot/devices
+- **Method**: GET
+- **Response**: Returns a list of registered IoT devices and their owners.
+
+2. **Make Payment**
+- **Endpoint**: /api/iot/payment
+- **Method**: POST