53 lines
2.1 KiB
Markdown
53 lines
2.1 KiB
Markdown
# Adding an endpoint to ExtendSchema <!-- omit in toc -->
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This document is intended for internal developers of the WooCommerce Blocks plugin. If you feel like a new endpoint should be added, feel free to open an issue or a PR detailing why.
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## Extending `GET` endpoints in Store API
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ExtendSchema needs to expose each endpoint individually. If you want to expose a new endpoint, you have to follow these steps:
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1. In `ExtendSchema` class, add your endpoint `IDENTIFIER` to the `$endpoints` variable.
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```php
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use Automattic\WooCommerce\StoreApi\Schemas\BillingAddressSchema;
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private $endpoints = [ /* other identifiers */, BillingAddressSchema::IDENTIFIER ];
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```
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This is to prevent accidentally exposing new endpoints.
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2. Inside your endpoint schema class (for this example, inside `BillingAddressSchema`), in its `get_properties` method, add this call at the end of the returned array.
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You can pass extra parameters to `get_extended_schema` and those would be passed to third party code.
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```php
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self::EXTENDING_KEY => $this->get_extended_schema( self::IDENTIFIER ),
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```
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`EXTENDING_KEY` value is `extensions`, we use a constant to make sure we don't have a typo.
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3. Inside the same class, in `get_item_response`, add the below line. Like `get_extended_schema`, you can pass extra parameters here as well.
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Make sure to only expose what's needed.
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```php
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self::EXTENDING_KEY => $this->get_extended_data( self::IDENTIFIER, $cart_item ),
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```
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That's it, your endpoint would now contain `extensions` in your endpoint, and you can consume it in the frontend.
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Extending a new endpoint is usually half the work, you will need to receive this data in the frontend and pass it to any other extensibility point (Slot, Filter, Event).
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<!-- FEEDBACK -->
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---
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[We're hiring!](https://woocommerce.com/careers/) Come work with us!
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🐞 Found a mistake, or have a suggestion? [Leave feedback about this document here.](https://github.com/woocommerce/woocommerce-blocks/issues/new?assignees=&labels=type%3A+documentation&template=--doc-feedback.md&title=Feedback%20on%20./docs/internal-developers/rest-api/extend-rest-api-new-endpoint.md)
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<!-- /FEEDBACK -->
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