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[英]TypeError: Network Request Failed when trying to hit local API from android emulator. React-Native
[英]React-native Android emulator - POST fails with TypeError: Network request failed
我正試圖點擊VPN上的API。 我確保我的筆記本電腦已連接到VPN - 我可以從Chrome REST客戶端成功發出POST登錄請求。 此外 - 我的iOS對應應用程序在iOS模擬器上運行正常,運行相同的fetch()代碼等。
反應本機版本我正在:
react-native-cli:0.2.0
反應原生:0.22.2
我在登錄類中的代碼是:
var LOGIN_URL = 'http://<mydomain>/portal/api/v1.0/user/authenticate/';
class DroidLogin extends Component {
...
onLoginPressed() {
this._authenticate();
}
_authenticate() {
fetch(LOGIN_URL + "<username>", {
method: "POST",
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
},
body: JSON.stringify({password:<password>})
})
.then((response) => response.json())
.then((responseData) => {
console.log("Response data token is: " + responseData.token);
})
.catch((error) => {
console.log('We have an error logging in...');
console.warn(error);
})
.done();
}
...
}
我在Chrome調試器中看到的錯誤:
TypeError: Network request failed
at xhr.onload (http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false:14679:8)
at XMLHttpRequest._sendLoad (http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false:57127:1)
at XMLHttpRequest.setReadyState (http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false:57117:6)
at XMLHttpRequest._didCompleteResponse (http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false:57012:6)
at http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false:56950:105
at EventEmitter.emit (http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false:51351:23)
at MessageQueue.__callFunction (http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false:51547:23)
at http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false:51451:8
at guard (http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false:51405:1)
at MessageQueue.callFunctionReturnFlushedQueue (http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false:51450:1)
在Android模擬器上運行時需要更改什么? 謝謝!
我第一次遇到這個錯誤時,我能夠通過運行此命令來解決它
adb reverse tcp:8000 tcp:8000
現在請求正常,但它仍然在.catch()
上給我這個錯誤
[TypeError: Network request failed]
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