Nrthugu

I am working on a project to work on a website that connects to a mysql server using flask and sqlAlchemy (Hosted on AWS RDS) and I am following this tutorial but when I try to do (/api/bar) I get this error. When I just do my localhost:8080 it shows "Hello World" perfectly fine.

sqlalchemy.exc.OperationalError: (pymysql.err.OperationalError) (2003, "Can't connect to MySQL server on 'localhost' ([WinError 10061] No connection could be made because the target machine actively refused it)") (Background on this error at: http://sqlalche.me/e/e3q8)

config.py
database_url = "mysql+pymysql://username:password@localhost:3306/barbeerdrinker"

Here is my __init__.py

from flask import Flask

from flask import jsonify

from flask import make_response

from flask import request

import json



from barbeerdrinker import database



#Flask application

app = Flask(__name__)



@app.route("/")

def hello_world():

    return "Hello World"



@app.route("/api/bar", methods=["GET"])

def get_bars():

    return jsonify(database.get_bars())



@app.route("/api/bar/<name>", methods=["GETS"])

def find_bar(name):

    try:

        if name is None:

            raise ValueError("Bar is not specified")

        bar = database.find_bar(name)

        if bar is None:

            return make_response("No bar found within given name", 404)

        return jsonify(bar)

    except ValueError as e:

        return make_response(str(e), 400)

    except Exception as e:

        return make_response(str(e), 500) 



@app.route("/api/beers_cheaper_than", methods=["POST"])

def find_beers_cheaper_than():

    body = json.loads(request.data)

    max_price = body['maxPrice']

    return jsonify(database.filter_beers(max_price)) 

database.py

from sqlalchemy import create_engine

from sqlalchemy import sql



from barbeerdrinker import config



engine = create_engine(config.database_url)



def get_bars():

    with engine.connect() as con:

        rs = con.execute("SELECT name, address, city, opening, closing, phoneNum FROM bars")

        return [dict(row) for row in rs]



def find_bar(name):

    with engine.connect() as con:

        query = sql.text("SELECT * FROM bars WHERE name = :name;")

        rs = con.execute(query, name=name)

        result = rs.first()

        if result is None:

            return None

        return dict(result)



def filter_beers(max_price):

    with engine.connect() as con:

        query = sql.text("SELECT * FROM sells WHERE price < : max_price;")

        rs = con.execute(query, max_price=max_price)

        results = [dict(row) for row in rs]

        for r in results:

            r['price'] = float(r['price'])

        return results

**Edit: So it seems like the problem is not an issue with my code but a Windows error. One solution I tried to do was to open up the required ports through my firewall to no avail.

I just figured it out, turns out the issue is not a windows issue. The problem is within my config.py:

Instead of:
database_url = "mysql+pymysql://username:password@localhost:3306/barbeerdrinker"

It should be:
database_url = "mysql+pymysql://username:password@**AWSENDPOINT/HOSTNAME**:3306/barbeerdrinker"