如何使用一组 id 以 angular 4 进行大量删除 [英] How to make a massive delete in angular 4 with an array of ids

问题描述

我正在尝试进行大量删除，为了做到这一点，我有一个 Array 想要删除的 ID.我无法将此数组作为参数传递给方法 this._httpService.delete(uri,options)._httpService 的类型是 Http.

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.

所以我循环数组并在循环内进行单次调用，但每次调用都是异步的，当循环结束时我有一定的逻辑要运行.

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.

推荐答案

实际上你可以在 DELETE 请求的正文中发送 id 数组，根据 这个答案，像这样:

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
}))

因此，与其发出数百个请求，不如让您的应用在正文中创建一个包含所有 ID 的请求.

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

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