搞懂Url Routing的參數處理
來做個使用者CRUD
先來做一個基本的CRUD的操作
User基本結構
先定義User這個Resource的基本結構, 這只是定義結構
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| from flask_restful import Resource
class User(Resource):
def get(self, name):
pass
def post(self, name):
pass
def put(self, name):
pass
def delete(self, name):
pass
|
註冊Resouce
不過如何將name由url帶入方法內
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| from flask import Flask
from flask_restful import Api
from resources.user import User
app = Flask(__name__)
api = Api(app)
api.add_resource(User, '/user/<string:name>')
if __name__ == "__main__":
app.run()
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如此可以把User綁定到url/user/,而最後一個內容會轉型成字串傳遞給熱法當作是name的變數, 可以先以postman來測試,之前的uri應該是url
設定POSTMAN
可以在postman上執行get,post,put,delete的方法，只不過服務器的回應是null,應為我們的方法是空的
#### 實作GET方法
先不以資料庫的操作,修改user.py
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| from flask_restful import Resource
users = [{
'name':'kitty'
}]
class User(Resource):
def get(self, name):
find = [item for item in users if item['name'] == name]
if len(find) == 0:
return {
'message': 'username not exist!'
}, 403
user = find[0]
if not user:
return {
'message': 'username not exist!'
}, 403
return {
'message': '',
'user': user
}
def post(self, name):
pass
def put(self, name):
pass
def delete(self, name):
pass
|
實作delete
可以使用get方法來測試
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| from flask_restful import Resource
users = [
{'name': 'kitty'},
{'name': 'tom'}
]
class User(Resource):
def get(self, name):
find = [item for item in users if item['name'] == name]
if len(find) == 0:
return {
'message': 'username not exist!'
}, 403
user = find[0]
if not user:
return {
'message': 'username not exist!'
}, 403
return {
'message': '',
'user': user
}
def post(self, name):
pass
def put(self, name):
pass
def delete(self, name):
global users
users = [item for item in users if item['name'] != name]
return{
'message': 'Delete done!'
}
|