simple look

logging-proxy.yml

@@ -0,0 +1,7 @@
+services:
+  logging-proxy:
+    build: .
+    ports:
+      - "8545:8545"
+    environment:
+      TARGET_URL: "${LOGGING_PROXY_TARGET_URL}"

logging-proxy/Dockerfile

@@ -0,0 +1,11 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+RUN pip install flask requests
+
+COPY proxy.py .
+
+EXPOSE 8545
+
+CMD ["python", "proxy.py"]

logging-proxy/proxy.py

@@ -0,0 +1,23 @@
+from flask import Flask, request, jsonify
+import requests
+import sys
+import os
+
+app = Flask(__name__)
+
+# Target JSON-RPC server, e.g., an Ethereum node
+TARGET_URL = os.getenv('TARGET_URL', 'http://host.docker.internal:8545')
+
+@app.route('/', methods=['POST'])
+def proxy():
+    incoming = request.get_json()
+    print(f"==> Request:\n{incoming}", file=sys.stdout, flush=True)
+
+    response = requests.post(TARGET_URL, json=incoming)
+    outgoing = response.json()
+
+    print(f"<== Response:\n{outgoing}", file=sys.stdout, flush=True)
+    return jsonify(outgoing)
+
+if __name__ == '__main__':
+    app.run(host='0.0.0.0', port=8545)