Angular 6和AWS-放大通用网络错误

时间:2018-06-20 15:07:26

标签: angular amazon-web-services aws-mobilehub aws-amplify

我有一个我正在开发的angular 6和aws-amplify / aws-amplify-angular应用程序,当前正在尝试执行HTTP GET。我收到的是一条通用的Error: Network Error消息,从身份验证到与亚马逊的通讯问题,我的确可以是任何东西。

我的函数看起来像这样,我试图将我的lambda的响应简单地登录到控制台。

async getOwnerDecks() {
    const authToken = await Auth.currentSession().then(data => {
        return data.idToken.jwtToken;
    });

    const authHeader = {
        Authorization: authToken
    };

    this.result = await this.amplifyService.api().get('decks', '', {headers: authHeader}).then( resp => {
        return resp;
        }).catch(err => {
            console.log(err);
    });
}

就是这样。我可以通过awsmobile awsmobile cloud-api invoke decks get /decks的命令通过Postman调用并获得成功的响应,但是从上面的函数中我什么也没得到。我尝试使用API​​.get和angularService.api()。get都失败了。

Error
columnNumber: 15
​
config: Object { timeout: 0, xsrfCookieName: "XSRF-TOKEN", xsrfHeaderName: "X-XSRF-TOKEN", … }
​
fileName: "http://localhost:8080/vendor.js"
​
lineNumber: 96651
​
message: "Network Error"
​
request: XMLHttpRequest { __zone_symbol__xhrSync: false, __zone_symbol__xhrURL: "https://xxxxxx.execute-api.eu-west-1.amazonaws.com/MobileHub_Deployments/decks", __zone_symbol__ON_PROPERTYreadystatechange: handleLoad(), … }
​
response: undefined
​
stack: "createError@http://localhost:8080/vendor.js:96651:15\nhandleError@http://localhost:8080/vendor.js:96194:14\nwrapFn@http://localhost:8080/polyfills.js:3510:30\n./node_modules/zone.js/dist/zone.js/</ZoneDelegate.prototype.invokeTask@http://localhost:8080/polyfills.js:2743:17\nonInvokeTask@http://localhost:8080/vendor.js:40796:24\n./node_modules/zone.js/dist/zone.js/</ZoneDelegate.prototype.invokeTask@http://localhost:8080/polyfills.js:2742:17\n./node_modules/zone.js/dist/zone.js/</Zone.prototype.runTask@http://localhost:8080/polyfills.js:2510:28\n./node_modules/zone.js/dist/zone.js/</ZoneTask.invokeTask@http://localhost:8080/polyfills.js:2818:24\ninvokeTask@http://localhost:8080/polyfills.js:3862:9\nglobalZoneAwareCallback@http://localhost:8080     /polyfills

这是我应该得到的答复

{ 
  requestBody: null,
  pathParams: '/decks',
  queryStringParams: null,
  headerParams:
   { Accept: 'application/json, text/plain, */*',
     'CloudFront-Forwarded-Proto': 'https',
     'CloudFront-Is-Desktop-Viewer': 'true',
     'CloudFront-Is-Mobile-Viewer': 'false',
     'CloudFront-Is-SmartTV-Viewer': 'false',
     'CloudFront-Is-Tablet-Viewer': 'false',
     'CloudFront-Viewer-Country': 'ES',
     Host: 'xxxxxxxxxxxxx.execute-api.eu-west-1.amazonaws.com',
     'User-Agent': 'axios/0.17.1',
     Via: '1.1 xxxxxxxxxxxxxxx.cloudfront.net (CloudFront)',
     'X-Amz-Cf-Id': 'iNPucPQXZybc7Zg1AfA005rE-W30Qs-TG1V2pDK5fDHAPWSNSBg==',
     'x-amz-date': '20180620T143059Z',
     'X-Amzn-Trace-Id': 'Root=1-5b2a6523-3c88e3d2f77853e8cbf4351c',
     'X-Forwarded-For': 'xxx.xxx.xxx.xxx,xxx.xxx.xxx.xxx',
     'X-Forwarded-Port': '443',
     'X-Forwarded-Proto': 'https' },
  stage: 'Development',
  stageVariables: { stage: 'Development' },
  cognitoIdentityId: null,
  httpMethod: 'GET',
  sourceIp: 'xxx.xxx.xxx.xxx',
  userAgent: 'axios/0.17.1',
  requestId: '8cec8ff3-7496-11e8-a737-9d1996926e66',
  resourcePath: '/decks' 
}

我正在使用最新的6版本angular / cli,aws-amplify和aws-amplify-angular npm软件包。

我已验证它与cors不相关,因为以前我遇到过cors标头问题,现在,一旦我将所需的标头添加到awsmobile lambda中,该错误就消失了。

有什么明显的我想念吗?

1 个答案:

答案 0 :(得分:0)

您具有以下代码:

this.result = await this.amplifyService.api().get('decks', '', {headers: authHeader}).then( resp => {
    return resp;
    }).catch(err => {
        console.log(err);
});

似乎您在.get参数中传递了空路径。你应该有这样的东西吗...

this.result = await this.amplifyService.api().get('decks', '/decks', {headers: authHeader}).then( resp => {
    return resp;
    }).catch(err => {
        console.log(err);
});

...正在传递/ decks路径而不是空字符串?