# RESTful api

參考教學

<http://www.pythondoc.com/flask-restful/first.html>

<http://www.pythondoc.com/flask-mega-tutorial/index.html>

<https://theblackcat102.wordpress.com/2016/06/30/用flask建立restful-api/>

動態網址

<http://blog.csdn.net/m0_38124502/article/details/78680368>

<https://segmentfault.com/a/1190000002480266>

取得ip連線者ip

```python
from flask import request
from flask import jsonify

@app.route("/get_my_ip", methods=["GET"])
def get_my_ip():
    return jsonify({'ip': request.remote_addr}), 200
```

<https://stackoverflow.com/questions/3759981/get-ip-address-of-visitors-using-flask-for-python>

print東西到cmd上

```
print('This is error output', file=sys.stderr)
```

<https://stackoverflow.com/questions/44405708/flask-doesnt-print-to-console/44410730>

## Configuration

可將重要參數加入至app.config

```python
app.config['SECRET_KEY'] = 'some secret words'
```

## 靜態檔案

比起django方便快速許多

```
# 靜態檔案的url 直接用於html中
url_for('static', filename='css/styles.css', _external=True)
```

參考連結：\
<https://blog.csdn.net/lanchunhui/article/details/51583377>

## 轉址 Redirect

```python
#encoding: utf-8

from flask import Flask, redirect, url_for

app = Flask(__name__)


@app.route('/')
def index():
    login_url = url_for('login')  # login欄位可輸入其他function名稱，會回傳對應的url(/login/)
    return redirect(login_url)
    return u'这是首页'

@app.route('/login/')
def login():
    return  u'这是登陆页面'

@app.route('/question/<is_login>/')
def question(is_login):
    if is_login == '1':
        return  u'这是发布问答的页面'
    else:
        return  redirect(url_for('login'))


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

參考資料：\
<https://blog.csdn.net/dengfan666/article/details/78320188>\
<https://www.letiantian.me/jiaocheng/python-flask/入门/使用redirect重定向网址.html>


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