Zotero PHP Wrapper

PHP wrapper for citation software Zotero

Features

Object-oriented approach. Since I don't know the full scale of API, I can painlessly add new endpoints and stuffs

Installation

composer require vvoleman/zotero-php-wrapper

Usage

• Connect to Zotero
  • Get API key
  • Create instance

Connect to Zotero

To use Zotero's API, you need to generate API key.

Get API key

Log into your Zotero account and access Feeds/API part of profile settings and click Create new private key.

Next, you can specify what permissions will this API key have. Save your API key, since you won't be able to retrieve it after you leave this page.

Create instance

Hop into your code and create some whooshing wrapper instance.

$api = new ZoteroApi("YOUR_API_KEY",new KeysSource("YOUR_API_KEY"));
$api->run();
$data = $api->getBody();

Let's explain it a bit. ZoteroApi instance requires API key for authentication and source.

Source is main branch from which we want to retrieve our data. So far, there are:

• UsersSource/GroupSource

  • All your precious collections and items are linked to a user or to group. Working with both them is a same.
  • After you create your UsersSource/GroupSource instance, you set endpoints to them with ZoteroApi::setEndpoint(), which takes as a parameter instance of AbstractEndpoint

    $api = new ZoteroApi($_ENV["API_KEY"], new UsersSource("YOUR_USER_ID"));
    $api->setEndpoint(
        (new Collections("COLLECTION_ID"))
              ->setEndpoint(new Items(AbstractEndpoint::ALL))
    );

  • AbstractEndpoint can chain another AbstractEndpoint - think of it like you can add /items to /collections/ID. However, there are limits to chaining. You can't add /items to /collections - you have to specify specific collection.
  • So, here are possible chainings (not all, but you get the idea):
    • Collections("ID") -> Items(<All options>)
      • Collections("ID") -> Items("ID") -> Tags("ID")
      • Collections("ID") -> Items("ID") -> Tags(AbstractEndpoint::ALL)
  • AbstractEndpoint takes as a constructor parameter a string value that specifies what you want to search
    • AbstractEndpoint::ALL - All results
    • AbstractEndpoint::TOP - Top-level results only
    • AbstractEndpoint::TRASH - Results in trash
    • "ID" - Specific ID of Endpoint