Failed to Load API Definition in Magento 2 Swagger

Failed to Load API Definition in Magento 2 Swagger

Are you getting Failed to Load API Definition in Magento 2 Swagger while developing a Magento 2 extension?

In this quick tutorial, we will resolve it.

Why Failed to Load API Definition?

An application programming interface (API) allows two programs and computers to interact with each other.

Magento extension developers create custom API to drive the data through various programs. Data is collected from the client and has to go and interact with several Magento elements. 

For example: After taking the order, the order id and customer’s email address should be sent to various departments (sales, operation, marketing) to perform the next function. The connection is built through the API.

Quality Magento developers maintain the API coding standards. To do that, they have to add phpdoc in the file. phpDocumentor (phpdoc) is an open-source documentation generator written in PHP. 

The phpdoc consists of code that looks like comments, but it does affect the output in API building.

For example: The absence of variable’s datatype in API phpdoc will generate failed to load API definition in Magento 2 swagger.

Let’s see how to solve it:

Solution to Failed to Load API definition in Magento 2 Swagger:

When we add phpdoc in API creation it adds like:

/**
    * @param $orderId
    * @param $mailId
    * @return mixed
*/

Cut the above code and add the following code.

/**
    * @param int $orderId
    * @param mixed $mailId
    * @return mixed
*/

That’s it. You will not encounter the issue again.

Wrap Up

Magento is a powerful ecommerce platform, but it comes with many bugs and errors. With quality managed Magento hosting, you can get rid of 90% of errors.

Many errors could be resolved by picking the right Magento extensions, as they also cause issues. Some error we solved are:

I hope this tutorial helped you in solving the failed to load API definition in Magento 2 swagger. If you encounter any issue, please tell us in the comment box.

Latest Magento Tips, Guides, & News

Stay updated with new stuff in the Magento ecosystem including exclusive deals, how-to articles, new plugins, and more. 100% Magento Goodness, a promise!

Leave a Comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Scroll to Top

Talk to a sales representative

USA / Worldwide

+1.714.2425683

India

+91.9852704704

We can help you. Right now.

Fast growing merchants choose Breeze for high-performance hosting. Experience counts. Let's get started.

Request demo

Please fill in the details below and we’ll reach out to you with a customized demo of our product!

🎉 CYBER MONDAY SAVINGS 🎉

75% OFF on
ALL PLANS

Receive the coupon as soon as you
submit the email address. 🚀