Bullhorn REST Client

Provides a simple client for the Bullhorn REST API.

Installation

$ composer require jonathanraftery/bullhorn-rest-client

Usage

use jonathanraftery\Bullhorn\Rest\Client as BullhornClient;
$client = new BullhornClient();

By default, the client will look for credentials in environment variables:

BULLHORN_CLIENT_ID
BULLHORN_CLIENT_SECRET
BULLHORN_USERNAME
BULLHORN_PASSWORD

Options

The client constructor accepts an option array.

use jonathanraftery\Bullhorn\Rest\Auth\CredentialsProvider\MemoryCredentialsProvider;
use jonathanraftery\Bullhorn\Rest\Client as BullhornClient;
use jonathanraftery\Bullhorn\Rest\ClientOptions;

$client = new BullhornClient([
    // NOTE: MemoryCredentialProvider not recommended for production
    ClientOptions::CredentialsProvider => new MemoryCredentialsProvider(
        'clientId', 'clientSecret', 'username', 'password'
    ),
]);

The ClientOptions class can be used to view the available options.

Credential Providers

A credential provider supplies the client with the credentials needed to connect to the API. There are simple providers included, or you can create your own with a class implementing the CredentialsProviderInterface (for example, to fetch credentials from Google Cloud Secret Manager).

use jonathanraftery\Bullhorn\Rest\Client as BullhornClient;
use jonathanraftery\Bullhorn\Rest\ClientOptions;
use jonathanraftery\Bullhorn\Rest\Auth\CredentialsProvider\CredentialsProviderInterface;

class CustomCredentialProvider implements CredentialsProviderInterface {
    public function getClientId() : string{ return 'id'; }
    public function getClientSecret() : string{ return 'secret'; }
    public function getUsername() : string{ return 'username'; }
    public function getPassword() : string{ return 'password'; }
}

$client = new BullhornClient([
    ClientOptions::CredentialsProvider => new CustomCredentialProvider()
]);

By default, the client will use an EnvironmentCredentialsProvider, which will look in the environment variables listed above for credentials. The variables used can be changed by constructing an EnvironmentCredentialsProvider with the other variables.

Auth Data Stores

API session data needs persisted in a data store. By default, the client will use a local JSON file for this store, but custom stores can be used.

use jonathanraftery\Bullhorn\Rest\Client as BullhornClient;
use jonathanraftery\Bullhorn\Rest\ClientOptions;
use jonathanraftery\Bullhorn\Rest\Auth\Store\DataStoreInterface;

class CustomDataStore implements DataStoreInterface {
    private $vars;

    public function get(string $key) : ?string{
        return $this->vars[$key];
    }

    public function store(string $key,$value){
        $this->vars[$key] = $value;
    }
}

$client = new BullhornClient([
    ClientOptions::AuthDataStore => new CustomDataStore()
]);

Initial OAuth consent

Before Bullhorn authorizes API calls from a new user, the user is required to give consent. If no consent has been given yet the library will throw an IdentityException and the client will respond with an HTML representation of the consent form.

To permanently fix this, visit the authorization URL with your credentials auth.bullhornstaffing.com/oauth/authorize?response_type=code&action=Login&username=&password=&state=<client_secret>&approval_prompt=auto&client_id=<client_id> while logged into bullhorn and press the Agree button. This will authorize your application to use the API in the user's name.

Raw Requests

Simple requests as documented in the Bullhorn API documentation can be run as:

use jonathanraftery\Bullhorn\Rest\Client as BullhornClient;
$client = new BullhornClient();
$response = $client->rawRequest(
    'GET',
    'search/JobOrder',
    [
        'query' => 'id:1234'
    ]
);

PUT/POST Requests

The client uses GuzzleHTTP for requests, and the parameters to the request method match those to create a request object in Guzzle. The third parameter is the request options, as described in the Guzzle documentation.

To set the body of a PUT/POST request, set the "body" option of the request to the JSON content of the request body such as:

use jonathanraftery\Bullhorn\Rest\Client as BullhornClient;
$client = new BullhornClient();
$response = $client->rawRequest(
    'PUT',
    'entity/Candidate',
    [
        'body' => json_encode(['firstName' => 'Alanzo', 'lastName' => 'Smith', 'status' => 'Registered'])
    ]
);

Entity Operations

Entities can be fetched, created, and deleted

use jonathanraftery\Bullhorn\Rest\Client as BullhornClient;
use jonathanraftery\Bullhorn\Rest\BullhornEntities;
$client = new BullhornClient();
$fetchedJobOrders = $client->fetchEntities(BullhornEntities::JobOrder, [1,2,3], [
    'fields' => 'id',
]);
$createdJobOrder = $client->createEntity(BullhornEntities::JobOrder, [
    'propName' => 'value',
    'propName2' => 'value',
]);
$deleteId = 1;
$client->deleteEntity(BullhornEntities::JobOrder, $deleteId);

Event Subscriptions

use jonathanraftery\Bullhorn\Rest\Client as BullhornClient;
use jonathanraftery\Bullhorn\Rest\BullhornEntities;
use jonathanraftery\Bullhorn\Rest\EventTypes;
$client = new BullhornClient();
$client->createEventSubscription('SubscriptionName', [BullhornEntities::JobOrder], [EventTypes::Created]);
$client->fetchEventSubscriptionEvents('SubscriptionName');
$client->deleteEventSubscription('SubscriptionName');

Sessions

A session will automatically be initiated upon the first request if no session exists in the data store.

A session can be manually initiated with:

use jonathanraftery\Bullhorn\Rest\Client as BullhornClient;
$client = new BullhornClient();
$client->initiateSession();

The session will automatically refresh if expiration detected, or can be refreshed manually (shown with optional parameters)

use jonathanraftery\Bullhorn\Rest\Client as BullhornClient;
$client = new BullhornClient();
$client->refreshSession(['ttl' => 60]);

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