chore: return base64 encoded images instead of image_uri

Author: Daniel Lorch

plugins/dynamic-few-shot-lambda/src/IDP-dynamic-few-shot.py

@@ -218,7 +218,16 @@ def _build_text_and_image_content(
             # Add images
             if image_content:
                 for image_uri in image_content:
-                    content.append({"image_uri": image_uri})
+                    # Load image content
+                    if image_uri.startswith("s3://"):
+                        # Direct S3 URI
+                        image_bytes = s3.get_binary_content(image_uri)
+                    else:
+                        raise ValueError(f"Invalid file path {image_path} - expecting S3 path")
+
+                    # Convert bytes to base64 string
+                    image_base64 = base64.b64encode(image_bytes).decode("utf-8")
+                    content.append({"image_base64": image_base64})
 
             # Add text after image
             after_text = _prepare_prompt_from_template(

plugins/dynamic-few-shot-lambda/template.yml

@@ -148,7 +148,7 @@ Resources:
         - arm64
       Timeout: 300
       MemorySize: 512
-      Description: Demo Lambda function for GenAI IDP dynamic few-shot prompting using S3 Vectors
+      Description: Lambda function for GenAI IDP dynamic few-shot prompting using S3 Vectors
       Environment:
         Variables:
           LOG_LEVEL: !Ref LogLevel