Angular报错“toPromise is not a function”有解决办法吗？

Question

I keep getting this error while testing: Uncaught Error: Uncaught (in promise): TypeError: this._productService.getProducts(...).toPromise is not a function.

I know that toPromise is being deprecated in rxjs version 7 but I am running version 6. Is there a way to fix this or another way to write my code without using a toPromise?

I am getting my products based on the three inputs already defined based on a previous click.

Thank you.

    async ngOnInit(): Promise<void> {
    this.product = await this._productService
      .getProducts({
        InputOne: this.inputOne,
        InputTwo: this.inputTwo,
        InputThree: this.inputThree
      })
      .toPromise();
  }

Answer 1

Since RxJS 7.0 toPromise() is deprecated and replaced by firstValueFrom or lastValueFrom depending on what you want to do.