[server]: Add return_all_coordinates

server/src/functions/return_all_coordinates/lambda_function.py

@@ -0,0 +1,37 @@
+import json
+import os
+import boto3
+
+os.environ.setdefault('AWS_DEFAULT_REGION', 'us-east-1')
+dynamodb = boto3.resource('dynamodb')
+
+
+def lambda_handler(event, context):
+    table = dynamodb.Table(os.environ['TABLE_NAME'])
+
+    try:
+        # Scan entire table and only extract latitude and longitude
+        coordinates = []
+        response = table.scan()
+
+        for item in response.get('Items', []):
+            if 'latitude' in item and 'longitude' in item:
+                coordinates.append([item['latitude'], item['longitude']])
+
+        # Handle pagination
+        while 'LastEvaluatedKey' in response:
+            response = table.scan(ExclusiveStartKey=response['LastEvaluatedKey'])
+            for item in response.get('Items', []):
+                if 'latitude' in item and 'longitude' in item:
+                    coordinates.append([item['latitude'], item['longitude']])
+
+        return {
+            'statusCode': 200,
+            'body': json.dumps({'coordinates': coordinates})
+        }
+
+    except Exception as e:
+        return {
+            'statusCode': 500,
+            'body': json.dumps({'error': str(e)})
+        }