接下来，我们将扩展这个示例应用程序，添加更多的资源和路由设计。
假设我们希望添加一个 Group 资源类，用于处理用户组相关的请求。每个用户可以属于多个组，每个组也可以包含多个用户。以下是示例代码：
代码语言：javascript复制class Group(Resource):
def get(self, group_id):
if group_id not in groups:
return {'message': f'Group {group_id} not found'}, 404
return groups[group_id]
def post(self, group_id):
if group_id in groups:
return {'message': f'Group {group_id} already exists'}, 400
groups[group_id] = {'name': request.json['name'], 'members': []}
return groups[group_id]
def put(self, group_id):
if group_id not in groups:
return {'message': f'Group {group_id} not found'}, 404
groups[group_id]['name'] = request.json['name']
return groups[group_id]
def delete(self, group_id):
if group_id not in groups:
return {'message': f'Group {group_id} not found'}, 404
del groups[group_id]
return {'message': f'Group {group_id} deleted'}
class UserGroup(Resource):
def get(self, user_id):
if user_id not in users:
return {'message': f'User {user_id} not found'}, 404
user_groups = []
for group_id in groups:
if user_id in groups[group_id]['members']:
user_groups.append({'id': group_id, 'name': groups[group_id]['name']})
return user_groups
def post(self, user_id):
if user_id not in users:
return {'message': f'User {user_id} not found'}, 404
group_id = request.json['group_id']
if group_id not in groups:
return {'message': f'Group {group_id} not found'}, 404
if user_id in groups[group_id]['members']:
return {'message': f'User {user_id} already in group {group_id}'}, 400
groups[group_id]['members'].append(user_id)
return {'message': f'User {user_id} added to group {group_id}'}
def delete(self, user_id):
if user_id not in users:
return {'message': f'User {user_id} not found'}, 404
group_id = request.json['group_id']
if group_id not in groups:
return {'message': f'Group {group_id} not found'}, 404
if user_id not in groups[group_id]['members']:
return {'message': f'User {user_id} not in group {group_id}'}, 400
groups[group_id]['members'].remove(user_id)
return {'message': f'User {user_id} removed from group {group_id}'}
api.add_resource(Group, '/groups/<int:group_id>')
api.add_resource(UserGroup, '/users/<int:user_id>/groups')在上面的代码中，我们首先定义了一个名为 Group 的资源类，用于处理用户组相关的请求。每个组对象包含一个名为 name 的属性和一个名为 members 的列表，用于存储属于该组的用户 ID。
