Promise 函数在 Angular 6 中不返回错误

Question

  Call(apiurl, model) {
        return new Promise((resolve, reject) => {
            this.adminService.add<any>(apiurl, model).toPromise().then(res => {
               return resolve({
                    'error': false,
                    'data': res
                });
            }), error => {
                return reject({
                    'error': true,
                    'data': error
                });
            }
        });
    }

This is my function. When I call this function and API response is 200 Ok response then it's return response but when error t throw by API then it does not return an error

public add<T>(APIpath, data): Observable<T> {
        return this.http.post<T>(apiPath, data);
}

This is my generic Function Which is used in call Function for call API

this.Result = await this.Call("API Path", Model);

This is code of calling this function and I Want to store response in this Result Variable

Answer 1

It's because of the wrong placement of error block. You could alter your code as below to make it work. Hope you are using TypeScript

var promise = new Promise(function(resolve, reject){
    return this.adminService.add<any>(apiurl, model).toPromise().then(res=>{
        resolve({
            'error': false,
            'data': res
        })
    }).catch(error=>{
        resolve({
            'error': true,
            'data': error
        }) 
    });
});

Please note the catch block and removed return statements.