Axios POST 有效,但 axios.create POST 生成 400 Bad Request Error
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【中文标题】Axios POST 有效,但 axios.create POST 生成 400 Bad Request Error【英文标题】:Axios POST works but axios.create POST generate 400 Bad Request Error 【发布时间】:2020-04-17 07:39:20 【问题描述】:前端框架:React JS
后端框架:Python Flask
之前,我在 package.json "proxy": "https://www.thehostofmyapi.com:6444"
中使用代理(因为我通过 SSH 连接到我工作的远程服务器)并且我在没有 axios 实例的情况下进行调用,见下文:
import axios from 'axios';
axios.post('/api/checks', foo: 'bar')
.then(response => console.log(response));
.catch(err => console.error(err));
一切正常,我正在发布/获取我的数据。
现在,我创建了一个 axios 实例:
const axiosInstance = axios.create(
baseURL: '/api',
headers:
'Content-Type': 'application/json',
,
transformRequest: [data => keysToCase(data, snakeCase)],
responseEncoding: 'utf8',
validateStatus: status => status === 200 || status === 201,
);
当我发出 GET 请求时一切正常,但当我发出 POST 时,我收到 400 Bad Request Error。
下面是我在浏览器中得到的响应
data: "<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">↵<title>400 Bad Request</title>↵<h1>Bad Request</h1>↵<p>The browser (or proxy) sent a request that this server could not understand.</p>↵"
status: 400
statusText: "Bad Request"
headers:
access-control-allow-origin: "https://www.thehostofmyapi.com:6444"
connection: "close"
content-length: "192"
content-type: "text/html"
date: "Fri, 27 Dec 2019 09:20:52 GMT"
server: "Werkzeug/0.16.0 Python/3.6.9"
vary: "Origin, Accept-Encoding"
x-powered-by: "Express"
config:
url: "/api/checks"
method: "post"
data: mission_id: "5df27777c85c4b639d4862ca"
headers:
Accept: "application/json, text/plain, */*"
Content-Type: "application/json"
transformRequest: [ƒ]
transformResponse: [ƒ]
timeout: 0
adapter: ƒ xhrAdapter(config)
xsrfCookieName: "XSRF-TOKEN"
xsrfHeaderName: "X-XSRF-TOKEN"
maxContentLength: -1
validateStatus: status => status === 200 || status === 201
request: XMLHttpRequest
onreadystatechange: ƒ handleLoad()
readyState: 4
timeout: 0
withCredentials: false
upload: XMLHttpRequestUpload onloadstart: null, onprogress: null, onabort: null, onerror: null, onload: null, …
responseURL: "http://localhost:3000/api/checks"
status: 400
statusText: "Bad Request"
responseType: ""
response: "<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">↵<title>400 Bad Request</title>↵<h1>Bad Request</h1>↵<p>The browser (or proxy) sent a request that this server could not understand.</p>↵"
responseText: "<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">↵<title>400 Bad Request</title>↵<h1>Bad Request</h1>↵<p>The browser (or proxy) sent a request that this server could not understand.</p>↵"
responseXML: null
onloadstart: null
onprogress: null
onabort: ƒ handleAbort()
onerror: ƒ handleError()
onload: null
ontimeout: ƒ handleTimeout()
onloadend: null
两个明显的行为:
-
当我将
baseURL: 'https://www.thehostofmyapi.com/api'
放入axios.create
并删除package.json 中的代理时:
我得到一个 400 但注意到一个 OPTION 请求出现在服务器的日志中
-
当我将代理保存在 package.json 中并放入
baseURL: '/api'
我仍然收到 400,但注意到服务器日志中没有 OPTION 请求
我听说过预检请求(显然是 OPTION 调用),但是当我不使用 axios.create
时,为什么一切正常?我该如何解决这个问题?
【问题讨论】:
这不是显示错误的方式.then(err => console.error(err));
这是方式.catch(err => console.log(err));
我知道,只是一个错字。对此感到抱歉
当你收到错误请求(状态 400)错误时,python 后端是否有任何堆栈跟踪,你能分享一下吗?
我只有INFO:werkzeug:10.138.7.214 - - [27/Dec/2019 09:29:37] "POST /checks HTTP/1.1" 400 -
【参考方案1】:
我设法解决了这个问题。我刚刚摆脱了transformRequest
并将其功能传递给axiosInstance.interceptors.request
const axiosInstance = axios.create(
baseURL: '/api',
headers:
'Content-Type': 'application/json',
,
responseEncoding: 'utf8',
validateStatus: status => status === 200 || status === 201,
);
axiosInstance.interceptors.request.use(
config => (
...config,
data: keysToCase(config.data, snakeCase),
),
error => error,
);
【讨论】:
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