leap_api.php

<?php

function submit_form_data( $confirmation, $form, $entry ) {

	...

	/**
	 * hold the form data that will be submitted to leap API
	 */
	$leap_form_data = [];

	/**
	 * Map inputs fields
	 */
	foreach ( $form['fields'] as $field ) {
		$inputs = $field->get_entry_inputs();
		// phpcs:disable
		if ( is_array( $inputs ) ) {
			foreach ( $inputs as $input ) {
				$value = rgar( $entry, (string) $input['id'] );
				if ( isset( $input['leapNameMapping'] ) && 0 !== strlen( ( trim( $value ) ) ) ) {
					$leap_form_data[ $input['leapNameMapping'] ] = $value;
				}
			}
		} else {
			$value = rgar( $entry, (string) $field->id );
			if ( isset( $field->leapNameMapping ) && 0 !== strlen( ( trim( $value ) ) ) ) {
				$leap_form_data[ $field->leapNameMapping ] = $value;
			}
		}
		// phpcs:enable
	}

	$settings     = \MicrosoftLeap\Form\Settings\get_settings();
	$endpoint_url = trailingslashit( $settings['api_url'] ) . 'form/submit';

	$response = wp_remote_post(
		$endpoint_url,
		[
			'headers' => [
				'Authorization' => 'Basic ' . base64_encode( $settings['http_auth_user'] . ':' . $settings['http_auth_pass'] ),
				'Content-Type'  => 'application/json',
			],
			'body'    => wp_json_encode( $leap_form_data ),
		]
	);

	...
	
}