我正在尝试为包含FormData
作为数据的请求创建“重试”功能。
重试发生在JWT令牌过期时,我的第二个请求(重试一个)不包含任何数据。
想法:
const axiosInstance = axios.create();
/**
* Before each request, we'll add a possible retry if the
* request need a refreshed token
*/
axiosInstance.interceptors.request.use((request) => {
if (typeof _.get(request, ['retried']) === 'undefined') {
request.retried = false;
}
return request;
});
/**
* After a request with an error, we'll check if the error is a token not refreshed.
* If we didn't already tried to refresh, we'll just fallback to the errorHandler function
*/
axiosInstance.interceptors.response.use(null, async (error) => {
const statusCode = _.get(error, ['response', 'data', 'statusCode']);
const message = _.get(error, ['response', 'data', 'message']);
const { config: request = {} } = error;
if (statusCode === 401 && !request.retried) {
try {
const newTokens = await refreshTokens();
request.retried = true;
_.set(request, ['headers', 'authorization'], newTokens.accessToken);
return axiosInstance.request(request);
} catch (e) {
return error;
}
}
return error;
});
请求:
const formData = new FormData();
formData.append('name', name);
formData.append('file', fs.createReadStream(file.path));
axiosInstance.post(
'http://localhost/upload',
formData,
{
headers: {
...formData.getHeaders(),
authorization: tokens.accessToken
}
}
);
如果我的令牌过期,请求将失败,拦截器将刷新我的令牌,并仅使用新的头文件Authorization
重试完全相同的请求。但是,在服务器端,接收到的有效载荷始终为空。
答案 0 :(得分:1)
据我所知,需要在重试中再次添加formData(我认为这是由于数据作为流添加并在请求期间被消耗,因此新的重试无法消耗已经消耗的流)
您可以看看request.data
来了解我的意思。
答案 1 :(得分:0)
您可以在 config 参数中传递表单数据:
axiosInstance.post(
'http://localhost/upload',
{},
{
data: formData, // <---- pass it here
headers: {
...formData.getHeaders(),
authorization: tokens.accessToken
}
}
);