angular - Map Firebase snapshot data to Typescript class -


im stuck mapping firebase data(in json string) simple typescript class

this json string :

    {      "-krgnlvkqpvwuyfxbco9":{         "category_icon":"https://firebasestorage.googleapis.com/v0/b/app_name.appspot.com/o/category%2fscreenshot%20(12).png?alt=media&token=6ef40a19-0ef8-440c-80ec-b12b3faa2d1e",       "category_name":"sunglasses",       "date_added":"23456789"    },    "-krgnppcnk2mzdea2mc-":{         "category_icon":"https://firebasestorage.googleapis.com/v0/b/app_name.appspot.com/o/category%2fscreenshot%20(12).png?alt=media&token=802e2b07-aeda-47db-81f1-48fffbc76f27",       "category_name":"eyelenses",       "date_added":"23456789"    } }

this typescript class :

export class category {          category_name: string;         category_icon: string;         date_added: string;    }

im using http request :

//this in service class     loadcategory(){     return this.http.get(`https://us-central1-app-name.cloudfunctions.net/api/products`)         .map((res:response) => res.json() );               }

i call above service :

this.categoryservice.loadcategory().subscribe(data => this.categories = data);


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