RXJS-多个连续的HTTP请求 [英] RXJS - multiple consecutive http requests

问题描述

source<http>
  .pipe(
    switchMap(d => this.http.get(d))
      .pipe(
        switchMap(j => this.http.get(j))
      )
  )
  .subscribe()

您好，我需要连续发出3个http请求，其中每个调用都包含下一个调用的数据..嵌套开关映射是这种情况下的最佳做法吗?

Hello, I need to make 3 http requests consecutively where each call contains data for the next call.. are nested switch maps the best practice for this case?

推荐答案

您无需嵌套它们.您可以简单地将它们链接起来:

You don't need to nest them. You can simply chain them:

source<http>
  .pipe(
    switchMap(d => this.http.get(d)),
    switchMap(j => this.http.get(j))
  )
  .subscribe()

除此之外，使用多个 switchMap 是一种方法.

Apart from that, using multiple switchMap is the way to go.

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