How to make a massive delete in angular 4 with an array of ids

Question

I'm trying to make a massive delete, in order to do that I have an Array<number> of the ids I want to delete. I can't pass this array as a parameter to the method this._httpService.delete(uri,options). The type of _httpService is Http.

So I'm looping the array and inside the loop I'm making single calls, but each call is async and I have certain logic to run when the loop ends.

because i don't know how many objects the user is going to delete. I'm showing a list of things and the user select the ones that he want to delete. — Daniel Acevedo
– Daniel Acevedo, Commented Jun 16, 2018 at 23:26

Marcos Dimitrio · Accepted Answer · 2018-06-17 01:47:09Z

2

Actually you can send the id array in the body of a DELETE request, according to this answer, like so:

http.delete('/api/something', new RequestOptions({
    headers: headers,
    body: anyObject    // this would contain your ids
}))

So instead of issuing hundreds of requests, have your app make just one with all ids in the body.

answered Jun 17, 2018 at 1:47

Marcos Dimitrio

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4 Comments

Daniel Acevedo Over a year ago

Awsome, and my next question would be: how do i access to that array? I can access to the headers doing in mi backend : Request.Headers.Autrhorization.Scheme for example to get the token.

Daniel Acevedo Over a year ago

Thank you so much, i can access to the array with the next parameter : [FromBody] ids

Daniel Acevedo Over a year ago

I have the next problem: stackoverflow.com/questions/50893637/… can you help me?

jowey Over a year ago

RequestOptions was depredacted with the whole @angular/http package since Angular 5. Options now are only an object without specific type.

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