Dynamically populating an option based field (select,radio,checkbox etc.) in Caldera Forms

caldera-forms-autopopulate-select.php

<?php
/* Example to auto populate an option based field in caldera forms
 * This example uses a by slug. method. this way you can populate the 
 * field by simply giving it the desired slug. in this example: gdp
 *
 * To populate based on type where {type} is dropdown, radio, checkbox etc...
 * add_filter('caldera_forms_render_get_field_type-{type}', 'cf_get_data_json');
 */

// Add filter on the fetch field config to populate
add_filter('caldera_forms_render_get_field_slug-gdp', 'cf_get_data_json');
// function to populate the options
function cf_get_data_json($field){

	// Use transient to cache result to limit calls
	$source = get_transient( '_cf_get_gdp_data_json' );

	// fetch source if transient is empty / expired
	if( empty( $source ) ){
		$source = json_decode( file_get_contents( 'https://www.quandl.com/api/v1/datasets/FRED/GDP.json' ), true );
		set_transient( '_cf_get_gdp_data_json', $source, 86400 ); // 86400 seconds = 24 hours
	}
	
	// reset defined options
	$field['config']['option']	= array();

	// uncomment below to set the default to the first item
	// $field['config']['default'] = 0;

	// go over the data in the source and create the labels and options
	foreach ( $source['data'] as $key => $data) {
		// set the option in the array
		$field['config']['option'][] = array(
			'value' => $data[1],
			'label' => $data[0]
		);
	}

	// return the field to the form
	return $field;
}

Have anyone tried on this?

Yep, its works..