{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://www.manongdao.com/data/attach/logo/logo.png', '推荐 Luminary・发光体 的问题《ReferenceError: gapi is not defined》','https://www.manongdao.com/q-1027553.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
SO i am new at this what i am trying to do is using Angular as Front-end to make a simple button that when clicked asks for user to Authenticate just like any login using gmail example but i keep getting this error and here is my code what i am trying to do is use the code provided by google https://developers.google.com/gmail/api/v1/reference/users/messages/list and covert it to typescript
app.component.ts
export class AppComponent {
async authenticate() {
return await gapi.auth2.getAuthInstance().signIn({
scope: 'https://www.googleapis.com/auth/gmail.readonly',
});
}
app.component.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<script src="https://apis.google.com/js/api.js"></script>
<title>Document</title>
</head>
<body>
<div class="wrapper">
<button class="signup" (click)="authenticate()">authorize and load</button>
</div>
<router-outlet></router-outlet>
</body>
</html>
Include this script tag