Create privacy_service.py

blockchain_integration/pi_network/privacy/privacy_service.py

@@ -0,0 +1,64 @@
+import json
+from flask import Flask, request, jsonify
+from web3 import Web3
+
+app = Flask(__name__)
+
+# Connect to Ethereum network
+w3 = Web3(Web3.HTTPProvider('https://your.ethereum.node'))
+
+# Smart contract ABI and address
+contract_address = '0xYourContractAddress'
+contract_abi = json.loads('''[
+    {
+        "constant": true,
+        "inputs": [{"name": "_proofId", "type": "bytes32"}],
+        "name": "getProofDetails",
+        "outputs": [
+            {"name": "", "type": "bytes32"},
+            {"name": "", "type": "bytes32"},
+            {"name": "", "type": "address"}
+        ],
+        "payable": false,
+        "stateMutability": "view",
+        "type": "function"
+    },
+    {
+        "constant": false,
+        "inputs": [
+            {"name": "_proofId", "type": "bytes32"},
+            {"name": "_commitment", "type": "bytes32"},
+            {"name": "_proofData", "type": "bytes32"}
+        ],
+        "name": "createProof",
+        "outputs": [],
+        "payable": false,
+        "stateMutability": "nonpayable",
+        "type": "function"
+    }
+]''')
+
+contract = w3.eth.contract(address=contract_address, abi=contract_abi)
+
+@app.route('/create_proof', methods=['POST'])
+def create_proof():
+    data = request.json
+    proof_id = data['proofId']
+    commitment = data['commitment']
+    proof_data = data['proofData']
+
+    # Call the smart contract function
+    tx_hash = contract.functions.createProof(proof_id, commitment, proof_data).transact()
+    return jsonify({'transaction_hash': tx_hash.hex()})
+
+@app.route('/get_proof/<proof_id>', methods=['GET'])
+def get_proof(proof_id):
+    proof_details = contract.functions.getProofDetails(proof_id).call()
+    return jsonify({
+        'commitment': proof_details[0],
+        'proof_data': proof_details[1],
+        'verifier': proof_details[2]
+    })
+
+if __name__ == '__main__':
+    app.run(debug=True)