Add a new library in Opencart (vendor/) with composer

If you have an already installed opencart store and you want to add new libraries or update the olde ones for security reasons (if they do not break everything), this is a possible alternative solution.

 

Copy the composer.json from a fresh package of your Opencart Version (You can find all the older versions opencart on bnit.it)  in the "storage" folder.
The /storage/ folder, that is usually under the web root or in the system folder. Depends on your configuration.

 

The following is the content of composer.json for opencart 3.0.3.8

{
    "name": "opencart/opencart",
    "type": "project",
    "description": "OpenCart",
    "keywords": ["opencart", "ecommerce", "framework", "opensource"],
    "homepage": "http://www.opencart.com",
    "license": "GPL-3.0+",
    "config": {
        "vendor-dir": "./upload/system/storage/vendor/"
    },
    "require": {
      "braintree/braintree_php" : "3.40.0",
      "cardinity/cardinity-sdk-php": "^1.0",
      "divido/divido-php": ">=1.1.1",
      "klarna/kco_rest": "^2.2",
      "php": ">=5.4.0",
      "scssphp/scssphp": "1.1.1",
      "twig/twig": "^2.4.8",
      "zoujingli/wechat-php-sdk": ">=1.3.10"
    }
}

Open the file with a text editor that supports utf8, like notepad++, vs.code, anything else.

Replace the following string
from

      "vendor-dir": "./upload/system/storage/vendor/"
to

      "vendor-dir": "./vendor/"

 

Open your console on your webserver and move to the storage folder 

You can now run from this folder
 

composer update

or

composer require [whatevername/yourlibrarytoadd]

For example I added the Google api client

composer require google/apiclient:^2.12.1