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forkJoin未等待多个Http请求完成

fork-join rxjs angular

0

Jasonca1 · 技术社区 · 7 年前

apiRequest1 = this.http.getApi1('...');
// The same format is for the remaining api requests.

forkJoin(apiRequest1, apiRequest2, apiRequest3)
    .subscribe(([results1, results2, results3]) => { rest of code }

results3中的数据一直以空数组的形式返回。如果我自己运行HttpRequest并订阅它,数据就会很好地返回。我有办法解决这个问题吗?

1 回复 | 直到 7 年前

1

5

Kevin 7 年前

你能试试下面的方法吗

forkJoin(
  apiRequest1, apiRequest2, apiRequest3
).subscribe(
    response =>{
      //response[0] is data returned by API apiRequest1
      //response[1] is data returned by API apiRequest2
      //response[2] is data returned by API apiRequest3
    }
    error => console.log("Error: ", error),
    () =>{
      //All the API calls are completed here. Put your code here
      //codes should be executed after the completion of all API calls
    }
)