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基本参数
from flask import Flask from flask.ext.restful import reqparse, abort, Api, Resource app = Flask(__name__) api = Api(app) TODOS = { ‘todo1‘: {‘task‘: ‘build an API‘}, ‘todo2‘: {‘task‘: ‘?????‘}, ‘todo3‘: {‘task‘: ‘profit!‘}, } parser = reqparse.RequestParser() parser.add_argument(‘task‘, type=str, help=‘Rate cannot be converted‘) parser.add_argument(‘rate‘, type=int) def abort_if_todo_doesnt_exist(todo_id): if todo_id not in TODOS: abort(404, message="Todo {} doesn‘t exist".format(todo_id)) # TodoList # shows a list of all todos, and lets you POST to add new tasks class TodoList(Resource): def get(self): return TODOS def post(self): args = parser.parse_args() todo_id = int(max(TODOS.keys()).lstrip(‘todo‘)) + 1 todo_id = ‘todo%i‘ % todo_id TODOS[todo_id] = {‘task‘: args[‘task‘]} return TODOS[todo_id], 201 ## ## Actually setup the Api resource routing here ## api.add_resource(TodoList, ‘/todos‘) if __name__ == ‘__main__‘: app.run(debug=True)
关键代码
parser = reqparse.RequestParser() parser.add_argument(‘task‘, type=str, help=‘Rate cannot be converted‘) parser.add_argument(‘rate‘, type=int) args = parser.parse_args()
指定了help信息，在解析类型错误的时候，就会作为错误信息呈现出来；否则默认返回类型错误本身的错误。
添加条件
whole2.py
from flask import Flask from flask.ext.restful import reqparse, abort, Api, Resource app = Flask(__name__) api = Api(app) TODOS = { ‘todo1‘: {‘task‘: ‘build an API‘}, ‘todo2‘: {‘task‘: ‘?????‘}, ‘todo3‘: {‘task‘: ‘profit!‘}, } parser = reqparse.RequestParser() parser.add_argument(‘task‘, type=str, help=‘Rate cannot be converted‘) parser.add_argument(‘rate‘, type=int, required=Ture) def abort_if_todo_doesnt_exist(todo_id): if todo_id not in TODOS: abort(404, message="Todo {} doesn‘t exist".format(todo_id)) # TodoList # shows a list of all todos, and lets you POST to add new tasks class TodoList(Resource): def get(self): return TODOS def post(self): args = parser.parse_args() todo_id = int(max(TODOS.keys()).lstrip(‘todo‘)) + 1 todo_id = ‘todo%i‘ % todo_id TODOS[todo_id] = {‘task‘: args[‘task‘]} return TODOS[todo_id], 201 ## ## Actually setup the Api resource routing here ## api.add_resource(TodoList, ‘/todos‘) if __name__ == ‘__main__‘: app.run(debug=True)
关键代码
parser.add_argument(‘rate‘, type=int, required=Ture)
运行
python whole2.py
另一个窗口执行
jihite@ubuntu:~/project/flask$ curl 127.0.0.1:5000/todos -d task=hello -X POST
{
"message": {
"rate": "Missing required parameter in the JSON body or the post body or the query string"
}
}
添加rate参数再执行，就ok了
jihite@ubuntu:~/project/flask$ curl 127.0.0.1:5000/todos -d task=hello -d rate=3 -X POST
{
"task": "hello"
}
whole3.py
from flask import Flask from flask.ext.restful import reqparse, abort, Api, Resource app = Flask(__name__) api = Api(app) TODOS = { ‘todo1‘: {‘task‘: ‘build an API‘}, ‘todo2‘: {‘task‘: ‘?????‘}, ‘todo3‘: {‘task‘: ‘profit!‘}, } parser = reqparse.RequestParser() parser.add_argument(‘task‘, type=str, action=‘append‘) def abort_if_todo_doesnt_exist(todo_id): if todo_id not in TODOS: abort(404, message="Todo {} doesn‘t exist".format(todo_id)) # TodoList # shows a list of all todos, and lets you POST to add new tasks class TodoList(Resource): def get(self): return TODOS def post(self): args = parser.parse_args() todo_id = int(max(TODOS.keys()).lstrip(‘todo‘)) + 1 todo_id = ‘todo%i‘ % todo_id TODOS[todo_id] = {‘task‘: args[‘task‘]} return TODOS[todo_id], 201 ## ## Actually setup the Api resource routing here ## api.add_resource(TodoList, ‘/todos‘) if __name__ == ‘__main__‘: app.run(debug=True)
执行
python whole3.py
另一窗口执行
jihite@ubuntu:~/project/flask$ curl 127.0.0.1:5000/todos -d task=hello -d task=hello2 -d task=hello4 -X POST
{
"task": [
"hello",
"hello2",
"hello4"
]
}
浏览器打开结果
{
"todo1": {
"task": "build an API"
},
"todo2": {
"task": "?????"
},
"todo3": {
"task": "profit!"
},
"todo4": {
"task": [
"hello",
"hello2",
"hello4"
]
}
}
待解决：http://www.pythondoc.com/Flask-RESTful/reqparse.html#id5
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原文地址：http://www.cnblogs.com/kaituorensheng/p/4661033.html
