minor improvements

.gitignore

@@ -2,3 +2,4 @@
 /shelf/
 /workspace.xml
 .env
+.pyc

main.py

@@ -1,6 +1,7 @@
 import os
 from dotenv import load_dotenv
 from flask import Flask
+from flask_cors import CORS
 from flask_sqlalchemy import SQLAlchemy
 from routes import register_route
 
@@ -13,5 +14,8 @@ db.init_app(app)
 
 register_route(app, db)
 
+CORS(app, resources={r"/find_agents": {"origins": os.getenv("ORIGINS")}}) 
+
+
 if __name__ == '__main__':
     app.run(debug=True)

routes.py

@@ -1,5 +1,5 @@
 import os
-from flask import jsonify, request
+from flask import jsonify, request, make_response
 from sqlalchemy import inspect, func, text
 from sqlalchemy.orm import sessionmaker
 from geoalchemy2 import Geometry
@@ -16,25 +16,32 @@ def register_route(app,db):
         tables = inspector.get_table_names()
         return jsonify(tables)
     
-    @app.route('/find_points/', methods=['POST'])
+    @app.route('/find_agents', methods=['POST','OPTIONS'])
     def find_points():
-        data = request.json
-        coordinates = data.get('coordinates', [])
-        polygon_wkt = 'POLYGON(({}))'.format(', '.join(f'{lat} {lng}' for lat, lng in coordinates))
+        if request.method == 'OPTIONS':
+            response = make_response()
+            response.headers.add("Access-Control-Allow-Origin", "http://localhost:4000")
+            response.headers.add('Access-Control-Allow-Headers', 'Content-Type')
+            response.headers.add('Access-Control-Allow-Methods', 'POST, OPTIONS')
+            return response
+        elif request.method == 'POST':
+            data = request.json
+            coordinates = data.get('coordinates', [])
+            polygon_wkt = 'POLYGON(({}))'.format(', '.join(f'{lng} {lat}' for lat, lng in coordinates))
+        
+            # Construct the query string
+            query = f"""
+                SELECT id, geom FROM agents
+                WHERE ST_Contains(
+                ST_Transform(ST_GeomFromText('{polygon_wkt}', 4326), 4326),
+                geom
+                )
+                """
     
-        # Construct the query string
-        query = f"""
-        SELECT id, geom FROM agents
-        WHERE ST_Contains(
-        ST_Transform(ST_GeomFromText('{polygon_wkt}', 4326), 4326),
-        geom
-        )
-        """
+            with db.engine.connect() as connection:
+                results = connection.execute(text(query)).fetchall()
     
-        with db.engine.connect() as connection:
-            results = connection.execute(text(query)).fetchall()
-    
-        # Convert results to a list of dictionaries for JSON serialization
-        results_list = [{"id": result.id, "geom": [wkb.loads(bytes.fromhex(result.geom)).x, wkb.loads(bytes.fromhex(result.geom)).y]} for result in results]
+            # Convert results to a list of dictionaries for JSON serialization
+            results_list = [{"id": result.id, "geom": [wkb.loads(bytes.fromhex(result.geom)).x, wkb.loads(bytes.fromhex(result.geom)).y]} for result in results]
 
-        return jsonify(results_list)
+            return jsonify(results_list)