Retrieve the API output and save the information into an array

Question

Retrieve the API output and save the information into an array

I am struggling with calling an API in my Angular application and extracting specific data from the JSON response to populate an array. Although I am able to retrieve the response, I am having trouble isolating a particular field and storing it in an array.

 dataList;
 apiUrl = 'GetDatafromSys?prj=123';

 constructor(service: DataService) {
 service.get<any>(this.apiUrl).subscribe(x => {this.dataList = (JSON.stringify(x)); });
}

The dataList returns JSON data like this:

 [
  {
    "Name": "Jack",
    "EmpNo":"123"
  },
  {
   "Name": "Joe",
    "EmpNo":"456"
  }
 ]

I am unsure how to extract the Name field from the JSON and store it in an array so that I can utilize it as a data source for a dropdown menu.

  <dx-select-box [dataSource]=""

angular typescript angular7

Answer 1

Answer №1

If you want to streamline your employee information handling, consider creating an interface specifically for employee details:

export interface Employee{
Name:string;
EmpNo:number;
}

To enhance your code, update the constructor method by replacing "any" with the Employee interface and integrating it into your datalist structure.

dataList: Employee[];
apiUrl = 'GetDatafromSys?prj=123;

constructor(service: DataService) {
service.get<Employee[]>(this.apiUrl).subscribe(x => {this.dataList = x }); // store results in dataList array
}

You can now access specific properties of each element in the list using their position or loop through the data to retrieve names or other necessary information. For example:

public print(){
this.dataList.forEach(element => {
  console.log(element.Name);
});

}

This approach should help simplify the management of your employee data within your application.

Answer 2

If you want to streamline your employee information handling, consider creating an interface specifically for employee details:

export interface Employee{
Name:string;
EmpNo:number;
}

To enhance your code, update the constructor method by replacing "any" with the Employee interface and integrating it into your datalist structure.

dataList: Employee[];
apiUrl = 'GetDatafromSys?prj=123;

constructor(service: DataService) {
service.get<Employee[]>(this.apiUrl).subscribe(x => {this.dataList = x }); // store results in dataList array
}

You can now access specific properties of each element in the list using their position or loop through the data to retrieve names or other necessary information. For example:

public print(){
this.dataList.forEach(element => {
  console.log(element.Name);
});

}

This approach should help simplify the management of your employee data within your application.

Retrieve the API output and save the information into an array

Answer №1

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