处理响应类型集到流的axios错误的一种方法对我有用。

.....
.....
try{
   .....
   .....
   // make request with responseType: 'stream'
   const url = "your url";
   const response = axios.get(url, { responseType: "stream" });
   // If everything OK, pipe to a file or whatever you intended to do
   // with the response stream
   .....
   .....
} catch(err){
  // Verify it's axios error
  if(axios.isAxios(err)){
    let errorString = "";
    const streamError = await new Promise((resolve, reject) => {
      err.response.data
        .on("data", (chunk) => {
           errorString += chunk;
          }
        .on("end", () => {
           resolve(errorString);
         }
      });
    // your stream error is stored at variable streamError.
    // If your string is JSON string, then parse it like this
    const jsonStreamError = JSON.parse(streamError as string);
    console.log({ jsonStreamError })
    // or do what you usually do with your error message
    .....
    .....
  }
  .....
  .....
}
   
  

从任何地方调用请求函数，而不必使用catch()。

首先，虽然在一个地方处理大多数错误是一个好主意，但处理请求就不那么容易了。一些错误(例如400个验证错误，如:“用户名已被占用”或“无效的电子邮件”)应该被传递。

所以我们现在使用一个基于Promise的函数:

const baseRequest = async (method: string, url: string, data: ?{}) =>
  new Promise<{ data: any }>((resolve, reject) => {
    const requestConfig: any = {
      method,
      data,
      timeout: 10000,
      url,
      headers: {},
    };

    try {
      const response = await axios(requestConfig);
      // Request Succeeded!
      resolve(response);
    } catch (error) {
      // Request Failed!

      if (error.response) {
        // Request made and server responded
        reject(response);
      } else if (error.request) {
        // The request was made but no response was received
        reject(response);
      } else {
        // Something happened in setting up the request that triggered an Error
        reject(response);
      }
    }
  };

然后可以像这样使用请求

try {
  response = await baseRequest('GET', 'https://myApi.com/path/to/endpoint')
} catch (error) {
  // either handle errors or don't
}

如果你不想使用异步等待尝试

export const post = async ( link,data ) => {
const option = {
    method: 'post',
    url: `${URL}${link}`,
    validateStatus: function (status) {
        return status >= 200 && status < 300; // default
      },
    data
};

try {
    const response = await axios(option);
} catch (error) {
    const { response } = error;
    const { request, ...errorObject } = response; // take everything but 'request'
    console.log(errorObject);
}

如果我理解正确的话，您希望只有在请求成功时才调用请求函数，并且希望忽略错误。为此，您可以创建一个新的承诺，在axios请求成功时解决它，并且在失败时绝不拒绝它。

更新后的代码看起来像这样:

export function request(method, uri, body, headers) {
  let config = {
    method: method.toLowerCase(),
    url: uri,
    baseURL: API_URL,
    headers: { 'Authorization': 'Bearer ' + getToken() },
    validateStatus: function (status) {
      return status >= 200 && status < 400
    }
  }


  return new Promise(function(resolve, reject) {
    axios(config).then(
      function (response) {
        resolve(response.data)
      }
    ).catch(
      function (error) {
        console.log('Show error notification!')
      }
    )
  });

}

https://stackabuse.com/handling-errors-with-axios/

    let res = await axios.get('/my-api-route');

    // Work with the response...
} catch (err) {
    if (err.response) {
        // The client was given an error response (5xx, 4xx)
    } else if (err.request) {
        // The client never received a response, and the request was never left
    } else {
        // Anything else
    }
}

try {
    let res = await axios.get('/my-api-route');

    // Work with the response...
} catch (err) {
    if (err.response) {
        // The client was given an error response (5xx, 4xx)
    } else if (err.request) {
        // The client never received a response, and the request was never left
        console.log(err.request);
    } else {
        // Anything else
    }
}

实际上，这在axios中是不可能实现的。仅在2xx范围内的状态代码可以在.then()中捕获。

一种传统的方法是在catch()块中捕获错误，如下所示:

axios.get('/api/xyz/abcd')
  .catch(function (error) {
    if (error.response) {
      // Request made and server responded
      console.log(error.response.data);
      console.log(error.response.status);
      console.log(error.response.headers);
    } else if (error.request) {
      // The request was made but no response was received
      console.log(error.request);
    } else {
      // Something happened in setting up the request that triggered an Error
      console.log('Error', error.message);
    }

  });

另一种方法是在请求或响应被处理或捕获之前拦截它们。

axios.interceptors.request.use(function (config) {
    // Do something before request is sent
    return config;
  }, function (error) {
    // Do something with request error
    return Promise.reject(error);
  });

// Add a response interceptor
axios.interceptors.response.use(function (response) {
    // Do something with response data
    return response;
  }, function (error) {
    // Do something with response error
    return Promise.reject(error);
  });