[英]Angular2, get data from REST call
I'm triyng to get data from json file by a id, by I'm getting all the content. 我正在通过ID获取json文件中的数据,因为我获取了所有内容。 Here the JSON: 这里的JSON:
[
{ "id": "1", "name": "Carlos", "apellidos":"López", "edad":"30", "ciudad":"Hospitalet" },
{ "id": "2", "name": "Arantxa", "apellidos":"Pavia", "edad":"24", "ciudad":"Barcelona" },
{ "id": "3", "name": "Didac" , "apellidos":"Pedra", "edad":"muchos", "ciudad":"Cornellà" },
{ "id": "4", "name": "Daniel" , "apellidos":"Farnos", "edad":"nolose", "ciudad":"Barcelona" }
]
Service: 服务:
private usersUrl = 'app/users.json';
getUser(id: String): Observable<User>{
let body = JSON.stringify(
{
"token": "test",
"content": {
"id": id
}
}
);
let headers = new Headers({ 'Content-Type': 'application/json' });
let options = new RequestOptions({
headers: headers,
body : body
});
return this.http.get(this.usersUrl, options)
.map(res => res.json()).catch(this.handleError);
}
Angular Component: 角分量:
ngOnInit(){
this.route.params.subscribe(params => {
let id = +params['id'];
this.apiService.getUser(id).subscribe( (res) => { console.log(res); } );
})
}
Console.log: CONSOLE.LOG:
Array[4]0: Object1: Object2: Object3: Objectlength: 4__proto__: Array[0]
Is the JSON bad? JSON不好吗?
Thanks. 谢谢。
Because you didn't filter the result by id. 因为您没有按ID过滤结果。
.map(res => res.json())
.map(x > x.find(x => x.id == id) // filter by selected id
.catch(this.handleError);
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