Ninja Forms - Submissions Rest Endpoint

A WordPress plugin to make NinjaForms submissions available to a remote system. This plugin creates a custom endpoint for WordPress REST API protected by an API key.

It is a ready to use WordPress plugin but in my opinion just for developers so I don't put it on the wordpress.org plugin repository (at least not yet).

There are two endpoints:

• /wp-json/nf-submissions/v1/form/FORM_ID/ to get submissions
• /wp-json/nf-submissions/v1/form/FORM_ID/fields to get field labels and metadata

Installation

1. Download the current version as ZIP file
2. Go to your WordPress backend and navigate to Plugins -> add new
3. click Upload plugin
4. upload the plugin your downloaded in step 1
5. activate the plugin

Configuration

Go to NinjaForms-> Settings There's a new meta box called Submissions REST API containing your API key.

Usage

Required parameters:

• FORM_ID ... the numeric ID of your Ninja form

Optional Parameters:

• DATE_FROM ... submission start date (only for submissions endpoint)
• DATE_TO ... submission end date (only for submissions endpoint)
• USE_ADMIN_LABEL ... when you retrieve the field labels you can decide whether to use default labels (0) or admin label (1) (only for fields endpoint)

Required Header:

• NF-REST-Key ... the key you get from NinjaForms settings of the remote site

Get field names and metadata

CURL

curl -X GET \
  'https://YOUR-REMOTE-SITE.com/wp-json/nf-submissions/v1/form/FORM_ID/fields?use_admin_label=0' \
  -H 'NF-REST-Key: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'

PHP

$request = new HttpRequest();
$request->setUrl('https://YOUR-REMOTE-SITE.com/wp-json/nf-submissions/v1/form/FORM_ID/fields');
$request->setMethod(HTTP_METH_GET);

$request->setQueryData(array(
  'use_admin_label' => '0'
));

$request->setHeaders(array(
  'NF-REST-Key' => 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'
));

try {
  $response = $request->send();

  echo $response->getBody();
} catch (HttpException $ex) {
  echo $ex;
}

From another WordPress site:

$url = 'https://YOUR-REMOTE-SITE.COM/wp-json/nf-submissions/v1/form/' . $form_id . '/fields';
$url = add_query_arg( array(
    'date_from' => $submission_date_from,
    'date_to' => $submission_date_to
), $url );
$response = wp_remote_get(
        $url,
        array(
            'headers' => array(
                "Content-Type"  => "application/json",
                "NF-REST-Key"   => $api_key
            )
        )
    );

$remote_data = json_decode( wp_remote_retrieve_body( $response ), true );

Fields Result:

{
    "submission_date": {
        "key": "submission_date",
        "label": "Submission Date"
    },
    "_seq_num": {
        "key": "_seq_num",
        "label": "Submission ID"
    },
    "checkbox_1513101298442": {
        "id": 1034,
        "type": "checkbox",
        "key": "checkbox_1513101298442",
        "label": "Single Checkbox"
    },
    "checkbox_list-greater_than_now_numeric_1556114758245": {
        "id": 1047,
        "type": "listcheckbox",
        "key": "checkbox_list-greater_than_now_numeric_1556114758245",
        "label": "Checkbox List->now numeric",
        "options": {
            "1": "One",
            "2": "Two",
            "3": "Three"
        }
    },
    "listmultiselect_1513101300788": {
        "id": 1035,
        "type": "listmultiselect",
        "key": "listmultiselect_1513101300788",
        "label": "Multi-Select",
        "options": {
            "one": "One",
            "two": "Two",
            "three": "Three"
        }
    },

...

Get submissions

CURL

curl -X GET \
  'https://YOUR-REMOTE-SITE.com/wp-json/nf-submissions/v1/form/FORM_ID/' \
  -H 'NF-REST-Key: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'

or

curl -X GET \
  'https://YOUR-REMOTE-SITE.com/wp-json/nf-submissions/v1/form/FORM_ID/?date_from=2019-05-01' \
  -H 'NF-REST-Key: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'

Submission Result:

{
    "submissions": [
        {
            "_field_1034": "1",
            "_field_1047": "a:1:{i:0;s:1:\"1\";}",
            "_field_1035": "a:1:{i:0;s:3:\"two\";}",
            "_field_1036": "three",
            "_field_1037": "one",
            "_field_1038": "",
            "_field_1039": "",
            "_field_1040": "US",
            "_field_1041": "",
            "_field_1042": "",
            "_field_1043": "",
            "_field_1045": "5",
            "_seq_num": "8",
            "submission_date": "2019-04-24 16:08:00"
        },
        {
            "_field_1034": "0",
            "_field_1047": "a:2:{i:0;s:3:\"one\";i:1;s:3:\"two\";}",
            "_field_1035": "a:1:{i:0;s:3:\"two\";}",
            "_field_1036": "two",
            "_field_1037": "one",
            "_field_1038": "",
            "_field_1039": "",
            "_field_1040": "US",
            "_field_1041": "",
            "_field_1042": "",
            "_field_1043": "",
            "_field_1045": "5",
            "_seq_num": "7",
            "submission_date": "2018-10-16 16:32:46"
        },

more NinjaForms plugins

We've got a few more WordPress plugins, also for NinjaForms on our website

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.