为什么我的基本Flask代码出现404错误？

Question

My code

from flask import Flask, jsonify 

app = Flask(__name__) 

@app.route('/api') 
def my_microservice(): 
    return jsonify({'Hello': 'World!'}) 

if __name__ == '__main__': 
    app.run()

Terminal output

python flask_basic.py
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
127.0.0.1 - - [20/Nov/2018 14:14:39] "GET / HTTP/1.1" 404 -

I have checked with lsof -i:5000 command and got nothing.

Why?

Answer 1

You set the route to /api ( @app.route('/api') ), yet you sent the request to / : "GET / HTTP/1.1" .

Either change the route to / or send the request to /api