Angular 5 adding html content dynamically

Question

I have following angular to add dynamically loaded content:

main.html

<div class="top">
   <ng-template #main></ng-template>
</div>

main.ts

import { Component, ViewChild, ComponentFactoryResolver, ViewContainerRef  } from '@angular/core';

@Component({
    selector: 'page-main_page',
    templateUrl: 'main_page.html'
})
export class main_page {        
    @ViewChild('main', { read: ViewContainerRef }) entry: ViewContainerRef;
    data: any;

constructor(public resolver: ComponentFactoryResolver){ 

};      

    ngOnInit(){ 
        this.getDynamicREST().then((res)=>{
            this.data = res; //Where it is a html markup from php server: <div class="sample"> Example </div>

            const factory = this.resolver.resolveComponentFactory(this.data);
            this.entry.createComponent(factory);

        })
    };

}

In the getDynamicRest(), I am getting a html markup from php server such as :

 <div class="sample"> Example </div>

However I am getting an error "Error: No component factory found for <div class="sample"> Example </div>"

Any suggestions would be much appreciated.

Answer 1

The ComponentFactoryResolver's resolveComponentFactory method accepts an Angular Component.

In your case, you are injecting HTML into your template, not a component. To inject HTML, save it in a variable and use the DomSanitizer to either sanitize it or bypass the security check:

export class main_page {
  data: SafeHtml;

  constructor(private sanitizer: DomSanitizer) {}      

  ngOnInit(){ 
    this.getDynamicREST().then((res)=> {
        this.data = this.sanitizer.sanitize(res);
        /* OR */
        this.data = this.sanitizer.bypassSecurityTrustHtml(res);
    })
  };
}

Then, in your template:

<div class="top">
  <div [innerHtml]="data"></div>
</div>

Answer 2

There is a new library that does the job. It is called ngx-dynamic-hooks. Link here.

With this one you don't have to disable AOT (as with ngx-dynamic-template, link here).

Answer 3

             let transporter = nodemailer.createTransport({
      host :'smtp.gmail.com',
      service: 'gmail', 
      secure : false,
      port : 465,
      requireTLS: true,
      auth : {
        user : '[email protected]',
        pass : 'PAssword', 
      }
    });     


             var email = req.body.email`enter code here`;
            let htmlContent = `<h1><strong>Foreget Password Link Form</strong></h1>
            <p>Hi,</p>
   <p>http://localhost:4200/forget/${email} contacted with the following Details</p>`;

      let mailoptions = {
      from : '[email protected]',
      to : req.body.email,
      subject : 'tesst',
      text: '',
      html: htmlContent
    };
      transporter.sendMail(mailoptions,function(err,data){
        if(err){
          console.log('errr',err)
        }else{
          console.log('email send');
        }
      });