Why is it that I am not receiving JSON data in my Angular application?

I am currently working on a class within a webapi

public class ResponseObject
{
    public int Success { get; set; }
    public string Message { get; set; }
    public object Data { get; set; }
}

Within my ASP.NetCore, I have the following method:

public IActionResult Get()
{ ..
using (NegociosAPIContext db = new NegociosAPIContext())
                {
                    var list = db.Client.ToList();
                    responseObject.Success = 1;
                    responseObject.Data = list;
                    return Ok(responseObject);
                }

On the Angular side (appAngular), I have imported the following in module.ts

import {HttpClientModule } from '@angular/common/http';
and here is my service code:

Image

https://i.sstatic.net/eAKDQ.png

and in my controller

import { Component, OnInit } from '@angular/core';
import {ApiClientService} from '../service/api-client.service';

@Component({
  selector: 'app-client',
...
})
export class ClientComponent implements OnInit {

  constructor(private apiClient: ApiClientService) {
    apiClient.getClients().subscribe(response => {
      console.log('response:'+response);

    })
   }
…
}

When calling the api in the browser, the response is:

{
    "success":1, 
    "message":" ",
    "data":[
        {
            "id":1, 
            "name":"Liliana  Torres"
        },
        {
            "id":2,
            "name":"Redmon Redinton"
        }
    ]
}

However, in the Angular app, I am only seeing {object Object}. When attempting to use

console.log('response:'+response.json);
it returns undefined

An important detail that I overlooked was the class in Typescript; I have defined it as follows:

import { IClient } from './IClient';

export interface ApiResponse {
    success:number;
    message:string;
    data:IClient[];
}

Answer №1

Here is the json data stored in the response variable:

{
    "success": 1, 
    "message": " ",
    "records":[
        {
            "id": 1, 
            "name": "Liliana Torres"
        },
        {
            "id": 2,
            "name": "Redmon Redinton"
        }
    ]
}

To access an attribute within this json structure, you can use (for example, to access the message):

response.message

To retrieve the name "Liliana Torres": response.records[0].name.

response.records[0] is equivalent to:

{
    "id": 1, 
    "name": "Liliana Torres"
}

and so forth.

If you need to log the entire json data, you can use:

console.log('response:', response);

or

console.log('response:' + JSON.stringify(response));

Answer №2

The result you have received is an object. To access the data within the object, you can retrieve it in the following way:

    console.log('response:' response['data']);

Please inform me if this helps resolve your problem. Thank you.

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