axios get请求返回请求失败，错误400

Question

我需要帮助来解决这个问题。我是 React Native 和 JavaScript 的新手。现在我正在尝试将 React Native 应用程序与 API 连接起来。这个过程要求我先获取令牌，axios.post然后才能axios.get获取数据。

长话短说，下面是我的代码片段。

... // code 
const TOKEN_URL = 'https://test.co/testing/tokens'
const DATA_URL = 'https://test.co/testing/data/page1'

const getToken = () => {
    axios.post(TOKEN_URL, {
        email: 'email',
        password: 'password',
        role: 'user'
    })
    .then((response) => {
    //console.log(response.data.token);
    return response.data.token;
    })
    .catch((error) => {
        console.log(error);
    });
};

//'export' here is for use in other code: example onPress function
export const fetchDriver = () => {
    const config = {
        headers: {
            'Bearer': getToken()
        }
    };

    axios.get(DRIVER_URL, config)
        .then((response) => {
            console.log(response);
        })
        .catch((error) => {
            console.log(error);
        });            
};

我预期的控制台日志会是这样的

{
    "timestamp": 1510038433,
    "verb": "GET",
    "object": "student",
    "data": {
        "age": "12",
        "id": "90000",
        "name": "Test Student",
        "emergencyName": "asd",
        "createdAt": "2017-10-04T05:39:39+00:00"
    }
}

但我不断收到错误消息Request failed with status code 400

我正在使用 Expo 来开发这个应用程序。

错误的详细信息是这样的

- node_modules/axios/lib/core/createError.js:16:24 in createError
- node_modules/axios/lib/core/settle.js:19:6 in settle
- node_modules/axios/lib/adapters/xhr.js:78:13 in handleLoad
- node_modules/event-target-shim/lib/event-target.js:172:43 in dispatchEvent
- node_modules/react-native/Libraries/Network/XMLHttpRequest.js:540:23 in 
setReadyState
- node_modules/react-native/Libraries/Network/XMLHttpRequest.js:381:25 in 
__didCompleteResponse
- node_modules/react-native/Libraries/vendor/emitter/EventEmitter.js:182:12 in 
emit
- node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:306:47 in 
__callFunction
- node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:108:26 in 
<unknown>
- node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:269:6 in 
__guard
- node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:107:17 in 
callFunctionReturnFlushedQueue

如果错误来自那里，我没有任何权限编辑 api/服务器。

如果我在片段中遗漏了任何一点，请帮助我。感谢您的帮助和建议。

Answer 1

你没有链接你的请求。您必须等到获得令牌才能使用它。

像这样的东西

获取令牌

const getToken = () => {
    return axios.post(TOKEN_URL, {
        email: 'email',
        password: 'password',
        role: 'user'
    })
    .then((response) => {
    //console.log(response.data.token);
    return response.data.token;
    })
    .catch((error) => {
        console.log(error);
    });
};

获取驱动程序

export const fetchDriver = () => {
  return getToken().then(token => {
    const config = {
      headers: {
        'Bearer': token
      }
    };

    return axios.get(DRIVER_URL, config)
      .then((response) => {
        console.log(response);
      })
      .catch((error) => {
        console.log(error);
      });
  });
}