我在iOS设备上有一个bug。所有对我的API的请求都会失败，错误为Network Error或Request failed with status code 404。我试了很多方法来调试它。

更多上下文

• 该应用程序使用React Native和Expo编写
• 该API使用Node.JS和TypeScript构建。
• API运行在我自己的小VPS上（在Nginx服务器上，在端口上提供：8080，所以 * 不是 * 通过HTTPS）。
• Axios请求在iOS模拟器中 * 工作 *（在我的Mac上）。
• Axios请求 * 无法工作 *（错误为：“网络错误”或“请求失败，状态代码为404”）。
• 当我在手机上从Expo Go应用程序中尝试我的应用程序时，Axios请求 * 不起作用 *。
• 我使用eas build和eas submit部署我的应用程序。

让我困惑的是，我不知道它为什么会失败，也不知道它在哪里失败。

解决方案尝试1：升级Expo SDK

我试着从版本48升级到49。这给我带来了各种其他问题-Axios错误仍然存在。所以我再次降级到48版（49版只出了3天）。

解决方案二：在我的服务器上检查tcpdump

我检查了我的服务器，如果它被击中在所有使用：sudo tcpdump -i any port 8080。当我得到Axios错误时，我什么也没有得到。
所以我可以得出结论，错误是在它击中服务器之前。

解决方案三：实施哨兵

我尝试安装Sentry，以获得更好的堆栈和/或错误描述。这是一个稍微好一点的错误，但对我没有任何帮助。

解决方案4：将data添加到标头

我在那个页面上发现了这个github评论，建议在get-request上添加data: {}和data: null作为头文件。
但没有解决问题。我忘了我把它留在里面了，所以一旦我清理了我的服务器，这就阻止了它的工作。

解决方案五：仔细查看失败的Axios请求

这是一个例子：

let targetEndpoint = 'http://example.org:8080/my-endpoint';
  const config = getConfig(); // getting the headers
  try {
    const response = await axios.get(targetEndpoint, config);
    return response.data.data;
  } catch (error) {
    console.error('Error getting data: ', error); // <-- This is where it makes it
    throw error; 
  }

字符串
堆栈跟踪示例：

{
    "message": "Request failed with status code 404",
    "name": "AxiosError",
    "stack": "AxiosError: Request failed with status code 404\n    at settle (http://192.168.0.53:19000/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false:140101:37)\n    at onloadend (http://192.168.0.53:19000/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false:139997:29)\n    at call (native)\n    at dispatchEvent (http://192.168.0.53:19000/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false:31686:31)\n    at setReadyState (http://192.168.0.53:19000/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false:30432:29)\n    at __didCompleteResponse (http://192.168.0.53:19000/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false:30234:29)\n    at apply (native)\n    at anonymous (http://192.168.0.53:19000/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false:30359:52)\n    at apply (native)\n    at emit (http://192.168.0.53:19000/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false:2236:40)\n    at apply (native)\n    at __callFunction (http://192.168.0.53:19000/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false:2805:36)\n    at anonymous (http://192.168.0.53:19000/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false:2566:31)\n    at __guard (http://192.168.0.53:19000/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false:2756:15)\n    at callFunctionReturnFlushedQueue (http://192.168.0.53:19000/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false:2565:21)",
    "config": {
        "transitional": {
            "silentJSONParsing": true,
            "forcedJSONParsing": true,
            "clarifyTimeoutError": false
        },
        "adapter": [
            "xhr",
            "http"
        ],
        "transformRequest": [
            null
        ],
        "transformResponse": [
            null
        ],
        "timeout": 0,
        "xsrfCookieName": "XSRF-TOKEN",
        "xsrfHeaderName": "X-XSRF-TOKEN",
        "maxContentLength": -1,
        "maxBodyLength": -1,
        "env": {},
        "headers": {
            "Accept": "application/json, text/plain, */*"
        },
        "method": "get",
        "url": "http://example.org:8080/my-endpoint"
    },
    "code": "ERR_BAD_REQUEST",
    "status": 404
}

型
还有这个

{
    "message": "Network Error",
    "name": "AxiosError",
    "stack": "AxiosError: Network Error\n    at handleError (http://192.168.0.53:8081/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false&lazy=true:173910:39)\n    at call (native)\n    at dispatchEvent (http://192.168.0.53:8081/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false&lazy=true:42587:31)\n    at setReadyState (http://192.168.0.53:8081/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false&lazy=true:40560:33)\n    at __didCompleteResponse (http://192.168.0.53:8081/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false&lazy=true:40346:29)\n    at apply (native)\n    at anonymous (http://192.168.0.53:8081/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false&lazy=true:40488:52)\n    at apply (native)\n    at emit (http://192.168.0.53:8081/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false&lazy=true:3006:40)\n    at apply (native)\n    at __callFunction (http://192.168.0.53:8081/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false&lazy=true:3711:36)\n    at anonymous (http://192.168.0.53:8081/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false&lazy=true:3431:31)\n    at __guard (http://192.168.0.53:8081/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false&lazy=true:3648:15)\n    at callFunctionReturnFlushedQueue (http://192.168.0.53:8081/node_modules/expo/AppEntry.bundle//&platform=ios&dev=true&hot=false&lazy=true:3430:21)",
    "config": {
        "transitional": {
            "silentJSONParsing": true,
            "forcedJSONParsing": true,
            "clarifyTimeoutError": false
        },
        "adapter": [
            "xhr",
            "http"
        ],
        "transformRequest": [
            null
        ],
        "transformResponse": [
            null
        ],
        "timeout": 0,
        "xsrfCookieName": "XSRF-TOKEN",
        "xsrfHeaderName": "X-XSRF-TOKEN",
        "maxContentLength": -1,
        "maxBodyLength": -1,
        "env": {},
        "headers": {
            "Accept": "application/json",
            "content-type": "application/json"
        },
        "data": "{}",
        "method": "get",
        "url": "http://example.org:8080/my-endpoint"
    },
    "code": "ERR_NETWORK",
    "status": null
}

型