Multiple Objects into HttpParams

Question

I have some categories in a formcontrol, I send them in an array of string like this:

[1,4,6]

And that is my actual code:

Answer 1

You can create object containing all parameters and pass this object to fromObject property of HttpParamOptons while creating HttpParams

let data={
   firstname:'xyz',
   lastname:'pqr'
}

let body=new HttpParams({fromObject:data})

this.http.post(URL, body, this.header).subscribe(data => {
 ....
}, error => {
 ....
})