[英]How to return a nested json response in Flask-Restx
我正在嘗試使用 Flask-RestX 制作一個 API 可以顯示這樣的響應,
{
"id": 1,
"msg": "How are things",
"score": 345,
"additional": {
"goal": 56,
"title": "ASking how"
}
}
當數據是這樣的(在我的情況下,我不控制數據格式),
data = {
"id":1,
"msg":"How are things",
"goal": 56,
"score":345,
"title":"Asking how"
}
但是我用當前代碼得到的響應是錯誤的,它顯示了 null 值
{
"id": 1,
"msg": "How are things",
"score": 345,
"additional": {
"goal": null,
"title": null
}
}
完整代碼——
from flask import Flask
from flask_restx import Resource, Api, fields
app = Flask(__name__)
api = Api(app)
data = {
"id":1,
"msg":"How are things",
"goal": 56,
"score":345,
"title":"Asking how"
}
extra = api.model('Extra', {
'goal': fields.Integer,
'title': fields.String
})
model = api.model('Model', {
'id' : fields.Integer,
'msg' : fields.String,
'score': fields.Integer,
'additional' : fields.Nested(extra)
})
@api.route('/hello')
class HelloWorld(Resource):
@api.marshal_with(model)
def get(self):
return data
if __name__ == '__main__':
app.run(debug=True, port=4000)
我對 Flask-RestX / Flask-RestPlus 完全陌生。 請告訴我,如何在不更改數據格式本身的情況下實現這一點。
根據上面waynetech的評論,以下內容對我有用:
from flask import Flask
from flask_restx import Resource, Api, fields
app = Flask(__name__)
api = Api(app)
data = {
"id":1,
"msg":"How are things",
"score":345,
"additional": {
"goal": 56,
"title": "Asking how",
}
}
extra = api.model('Extra', {
'goal': fields.Integer,
'title': fields.String
})
model = api.model('Model', {
'id' : fields.Integer,
'msg' : fields.String,
'score': fields.Integer,
'additional' : fields.Nested(extra)
})
@api.route('/hello')
class HelloWorld(Resource):
@api.marshal_with(model)
def get(self):
return data
@api.marshal_with(model)
def post(self):
data = api.payload
return data
if __name__ == '__main__':
app.run(debug=True, port=4000)
這是我使用的快速測試腳本:
from pprint import pprint
import requests
payload = {
"id": 1,
"msg":"Test",
"score":345,
"additional": {
"goal": 56,
"title": "Test",
}
}
url = 'http://127.0.0.1:4000/hello'
r = requests.post(url, json=payload)
if r.status_code == 200:
print(r.status_code)
pprint(r.json())
else:
print("FAIL: ", r.status_code)
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