feat: serverless examples (#11)

examples/python-lambda-s3/lambda_function.py

@@ -0,0 +1,21 @@
+import json
+import zen
+import boto3
+import os
+
+s3_client = boto3.client("s3")
+BUCKET_NAME = os.environ["BUCKET_NAME"]
+
+def loader(key):
+    file_content = s3_client.get_object(
+        Bucket=BUCKET_NAME, Key=key)["Body"].read().decode("ascii")
+    return file_content
+
+def lambda_handler(event, context):
+    engine = zen.ZenEngine({"loader": loader})
+    decision = engine.get_decision(event["key"])
+    result = decision.evaluate(event["context"])
+    return {
+        "statusCode": 200,
+        "body": result
+    }