如何从服务返回json数据

How can I get data return from post service as I am geeting subscription always. Even i try to convert in my app component I am not able to it.

如何从邮寄服务中获取数据，因为我总是订阅。即使我尝试在我的应用程序组件中转换我也无法做到。

facility_sevice.ts

saveFacility(facility) { 
    const headers = new Headers({'Content-Type': 'application/json'});
    return this.http.post('http://localhost:8000/saveFacility', 
facility, headers)
    .subscribe(
    (response: Response) => {
    return response.json();
},
(error) => {
return error.json();
}
);
}

facility_component.ts

savePatient() {
const response = 
this.facilityService.saveFacility(this.facilityForm.value)
console.log(response);
}

I am getting sbscription object but I want to return as json.

我正在获取sbscription对象，但我想以json的身份返回。

1 个解决方案

#1

RxJS library provides Observable operators which you can use to manipulate the data being emitted like map, filter.

RxJS库提供了Observable操作符，您可以使用它来操作像map，filter这样的数据。

Try using map operator:

尝试使用map运算符：

    saveFacility(facility) { 
        const headers = new Headers({'Content-Type': 'application/json'});
        return this.http.post('http://localhost:8000/saveFacility', facility, headers)
            .map(response => response.json())
            .subscribe((response: Response) => {
                    return response.json();
                },
                (error) => {
                    return error.json();
                }
            );
    }

#1