How to solve Import "flask_cors" could not be resolved from source-CodePudding

I'm doing a web based project using flutter and flask. when I tried to use API to communicate between flutter and flask(note : I'm new to dealing with API's).

I got XML Http Request error, I tried all the solutions available but still no use and later found that installing flask-CORS module in flask can help resolve the issue. while importing flask-CORS module I faced with the above error.

Flask-CORS path and error

Flutter API code

CodePudding user response：

from flask import Flask,request,jsonify
from flask_cors import CORS,cross_origin


app = Flask(__name__)
CORS(app)
app.config['ENV'] = "development"


@app.route('/auth',methods=["POST"])
@cross_origin()
def login():
    res=request.get_json()
    em=res["email"]
    pwd=res["password"]
    print(em "\t" pwd)
    return "success"

if __name__ == "__main__":
    app.run(debug=True)

CodePudding user response：

https://flask-cors.readthedocs.io/en/latest/

Allow access to all apis that starts with /api from all origins. cors = CORS(app, resources={r"/api/*": {"origins": "*"}})

or if you are testing from local try

cors = CORS(app, resources={r"/api/*": {"origins": ["http://localhost:5000/*"]}})

    from flask import Flask,request,jsonify
    from flask_cors import CORS,cross_origin
    
    
    app = Flask(__name__)
    cors = CORS(app, resources={r"/*": {"origins": "*"}})
    app.config['ENV'] = "development"
    
    
    @app.route('/auth',methods=["POST"])
    @cross_origin()
    def login():
        res=request.get_json()
        em=res["email"]
        pwd=res["password"]
        print(em "\t" pwd)
        return "success"
    
    if __name__ == "__main__":
        app.run(debug=True)