Using Angular to fetch a JSON list and apply filters

Question

Using Angular to fetch a JSON list and apply filters

Hey there, I have a simple question about working with JSON files. Currently, I am retrieving a list of workers from a JSON file called workers.json.

[{
  “workarea”: [“office”, “transport”, “IT”],
  “picture”: “some url”,
  “name”: “Mark Janken”,
  “age”: 30,
  “location”: “Holland”
}]

In my Angular controller, I am successfully fetching this data like so:

myApp.controller('MainController', function($scope, $http) {

  $http.get('workers.json')
    .success(function(data){
    $scope.workers = data;
    });

});

Now, I'm wondering how I can implement client-side filtering, for example using a URL parameter like /get-workers?location=:location and potentially having multiple filters.

I'm not sure where to start with this, any help or recommended resources would be greatly appreciated. Thanks!

javascript angularjs json

Answer 1

Answer №1

To implement this functionality on the client side, you'll need to integrate a router into your project.

Once you've added a router (I recommend using ui-router), you'll need to configure your states/routes like so:

$stateProvider
  .state('workers', {
     url: '/workers/:myFilter',
     ...
  })

In your controller, you can access this parameter using $stateParams with a simple line of code: $stateParams.myFilter

Here's an example of how your controller might look:

myApp.controller('MainController', 
  function($scope, $http, filterFilter) {

      $http.get('workers.json')
        .success(function(data){
           $scope.workers = data;
           $scope.filteredWorkers = 
             filterFilter($scope.workers, {
               location:$stateParams.myFilter
           });
        });

});

For more information, refer to the documentation. It's very user-friendly!

Answer 2

To implement this functionality on the client side, you'll need to integrate a router into your project.

Once you've added a router (I recommend using ui-router), you'll need to configure your states/routes like so:

$stateProvider
  .state('workers', {
     url: '/workers/:myFilter',
     ...
  })

In your controller, you can access this parameter using $stateParams with a simple line of code: $stateParams.myFilter

Here's an example of how your controller might look:

myApp.controller('MainController', 
  function($scope, $http, filterFilter) {

      $http.get('workers.json')
        .success(function(data){
           $scope.workers = data;
           $scope.filteredWorkers = 
             filterFilter($scope.workers, {
               location:$stateParams.myFilter
           });
        });

});

For more information, refer to the documentation. It's very user-friendly!

Answer 3

Answer №2

When the value is obtained from a server, it can be managed on the server side by using the query string to filter the data.

However, if you are retrieving the list from a JSON file, you will need to apply the filtering after obtaining the list.

myApp.controller('MainController', function($scope, $http, filterFilter) {

  $http.get('employees.json')
    .success(function(data){
       $scope.employees = data;
       $scope.filteredEmployees = filterFilter($scope.employees, {department:'finance'});
    });

});

Answer 4

When the value is obtained from a server, it can be managed on the server side by using the query string to filter the data.

However, if you are retrieving the list from a JSON file, you will need to apply the filtering after obtaining the list.

myApp.controller('MainController', function($scope, $http, filterFilter) {

  $http.get('employees.json')
    .success(function(data){
       $scope.employees = data;
       $scope.filteredEmployees = filterFilter($scope.employees, {department:'finance'});
    });

});

Using Angular to fetch a JSON list and apply filters

Answer №1

Answer №2

Similar questions

How can I turn off autocomplete in MUI textfields?

Error: The expected property name should be enclosed in double quotes at line 2, column 1

Utilizing Document AI to conduct seamless analysis on extensive volumes of information extracted from PDF documents

Secure access to an API using a certificate within a Vue.js application running on localhost

Create a multidimensional array from an array of objects

Data not being properly set in the form

What is the best way to invoke the datepicker function on all rows of table data that share the 'datepicker' class?

Guide on converting a JSON object to GSON in Java

The onTableChange function in Mui-Datatable does not seem to be functioning properly when attempting to

What is the best way to have two directives interact with each other?

Return structured data through a node.js JSON API

What steps should I take to prompt Postman to interact with a Web API?

Incorporating JSON Data into an Android App

I have already added the ID, yet I am unable to set the property 'onclick' of null

Looking to enhance code by using jQuery to substitute numerous href elements. Only seeking enhancements in code quality

Sending a picture through AJAX using the camera feature of p5.js

Converting a Postgresql row into a JSON array of values without keys

Chosen option within the AntD Select component

What is the best way to invoke a function that is defined in another controller?

What is the best way to extract information from a JSON array and showcase it in a TextView?