角度删除 - API 未收到调用

Question

我有以下自动生成的代码 (NSwag Studio) - 唯一的修改是withCredentials我为 Windows Auth（内网应用程序）添加的代码。

    deleteObjective(id: number): Observable<ObjectiveDTO> {

        let url_ = this.baseUrl + "/api/Objectives/{id}";

        if (id === undefined || id === null)

            throw new Error("The parameter 'id' must be defined.");

        url_ = url_.replace("{id}", encodeURIComponent("" + id)); 

        url_ = url_.replace(/[?&]$/, "");

        let options_ : any = {

            observe: "response",

            responseType: "blob",

            withCredentials: true,

            headers: new HttpHeaders({

                "Accept": "application/json"

            })

        };

        return this.http.request("delete", url_, options_).pipe(_observableMergeMap((response_ : any) => {

            return this.processDeleteObjective(response_);

        })).pipe(_observableCatch((response_: any) => {

            if (response_ instanceof HttpResponseBase) {

                try {

                    return this.processDeleteObjective(<any>response_);

                } catch (e) {

                    return <Observable<ObjectiveDTO>><any>_observableThrow(e);

                }

            } else

                return <Observable<ObjectiveDTO>><any>_observableThrow(response_);

        }));

    }

生成的服务中的其他一切工作正常（这是唯一的删除），但这实际上没有发送任何流量 - 在 Chrome 网络拉出（F12）中，没有对 API 的调用，API 也没有收到任何内容。

我从我的组件中调用它，如下所示：

  deleteObjective(): void {

    if (confirm('Are you sure you want to delete this objective? This cannot be un-done.')) {

      if (this.objective.id !== 0)

        this.service.deleteObjective(this.objective.id);

      for (var i = 0; i < this.objectives.length; i++) {

        if (this.objectives[i] === this.objective) {

          this.objectives.splice(i, 1);

        }

      }

    }

  }

并且拼接肯定是有效的。如果我放在debuggerhttp 请求之前，它会调用它。控制台中没有错误。

有任何想法吗？我是 angular 的新手，但对编程很老。

Answer 1

当您从服务调用该函数时，请确保您subscribe()使用它。

Answer 2

订阅后才会命中API像这样尝试：&nbsp; deleteObjective(): void {&nbsp; &nbsp; if (confirm('Are you sure you want to delete this objective? This cannot be un-done.')) {&nbsp; &nbsp; &nbsp; if (this.objective.id !== 0)&nbsp; &nbsp; &nbsp; &nbsp; this.service.deleteObjective(this.objective.id).subscribe(res => {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; for (var i = 0; i < this.objectives.length; i++) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (this.objectives[i] === this.objective) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; this.objectives.splice(i, 1);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; })&nbsp; &nbsp; }&nbsp; }