jwt-request.js

( function() {
  var app = angular.module( 'jwtAuth', [] );

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

    var apiHost = 'http://yourdomain.com/wp-json';

    $http.post( apiHost + '/jwt-auth/v1/token', {
        username: 'admin',
        password: 'password'
      } )

      .then( function( response ) {
        console.log( response.data )
      } )

      .catch( function( error ) {
        console.error( 'Error', error.data[0] );
      } );

  } );

} )();