Handling Authentication in Angular

Using Auth Interceptor

app.module.ts
  1. Add Authorization the header on each request
  2. Allow requests which don’t require token logic at all.
  3. If the token expires, then it automatically refreshes the token.
// You can also keep regx check to white no authenticate requestsif (whiteListUrls.find(w => request.url.includes(w))) {    return next.handle(this.addTokenToRequest(request, token));}
token-interceptor.ts

Conclusion:

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