feat: added fastapi and connected danger zones to frontend

geoparky-redis-api/redis_api.py

@@ -1,14 +1,15 @@
 """
     Hosting the nearest neighbours' functionality in a Flask API
 """
-from flask import Flask, request
+from flask import Flask, request, jsonify
 from redis_lib import create_redis_client, add_geospatial_point, find_geospatial_points_within_radius
+from flask_cors import CORS, cross_origin
 import os
 
 # Create the Redis client
 r = create_redis_client(
-    host_url = os.environ["REDIS_URL"],
-    host_password = os.environ["REDIS_PASSWORD"]
+    host_url = env.host_url,
+    host_password = env.host_password
 )
 
 # Get number of nearest neighbours functionality
@@ -21,6 +22,8 @@ def get_number_risk_points(latitude, longitude):
 
 # Set up flask app
 app = Flask(__name__)
+cors = CORS(app)
+app.config['CORS_HEADERS'] = 'Content-Type'
 
 # Base route
 @app.route('/')
@@ -29,6 +32,7 @@ def hello_world():
 
 # Nearest points' route
 @app.route('/nearby', methods = ['POST'])
+@cross_origin()
 def nearby_points():
     global r
 
@@ -37,13 +41,15 @@ def nearby_points():
     longitude = str(input_json["longitude"])
 
     num_points = get_number_risk_points(latitude, longitude)
-    output = {
+    response = jsonify({
         "latitude" : latitude,
         "longitude" : longitude,
         "points" : num_points
-    }
+    })
 
-    return output
+    response.headers.add('Access-Control-Allow-Origin', '*')
+
+    return response
 
 if __name__ == "__main__":
     app.run()

geoparky-redis-api/redis_api2.py

@@ -0,0 +1,56 @@
+from fastapi import FastAPI, status, Request
+from fastapi.middleware.cors import CORSMiddleware
+from pydantic import BaseModel
+from redis_lib import create_redis_client, add_geospatial_point, find_geospatial_points_within_radius
+
+
+# Create the Redis client
+r = create_redis_client(
+    host_url = env.host_url,
+    host_password = env.host_password
+)
+
+# Get number of nearest neighbours functionality
+def get_number_risk_points(latitude, longitude):
+    latitude = float(latitude)
+    longitude = float(longitude)
+
+    points = find_geospatial_points_within_radius(r, latitude, longitude, radius = 1000, collection_name="geoparky")
+    return len(points)
+
+
+app = FastAPI()
+
+origins = ["*"]
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=origins,
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+
+@app.get("/")
+async def root():
+    return {"message": "Hello World"}
+
+
+
+# Nearest points' route
+@app.post('/nearby')
+async def nearby_points(request: Request):
+    global r
+
+    input_json = await request.json()
+    latitude = str(input_json["latitude"])
+    longitude = str(input_json["longitude"])
+
+    num_points = get_number_risk_points(latitude, longitude)
+    response = {
+        "latitude" : latitude,
+        "longitude" : longitude,
+        "points" : num_points
+    }
+    return response

package.json

@@ -8,6 +8,7 @@
     "@testing-library/react": "^13.4.0",
     "@testing-library/user-event": "^13.5.0",
     "bootstrap": "^5.3.2",
+    "dotenv": "^16.3.1",
     "georedis": "^3.1.3",
     "react": "^18.2.0",
     "react-bootstrap": "^2.8.0",

pyvenv.cfg

@@ -0,0 +1,8 @@
+home = C:\Python310
+implementation = CPython
+version_info = 3.10.0.final.0
+virtualenv = 20.24.5
+include-system-site-packages = false
+base-prefix = C:\Python310
+base-exec-prefix = C:\Python310
+base-executable = C:\Python310\python.exe