![]() ![]() (If you don’t have the Postman app yet, you can either download it from here or get the web version.If you are new to Drupal 9 and wondering how to create a simple REST API, this is the right place to learn about it. If you want to get the response of a particular node, you need to send the request using the postman app with URL - hostname/node/nodeid?_format=json. Configure as required then save the configuration. Step 4: When you click on edit, you will get the edit window. To configure, go to Configuration -> REST -> then click on edit of the content row. Step 3: Next, you need to configure the REST API endpoints as required. Step 2: Next, you need to download the REST UI module and you need to enable the module. Step 1: Initially, you need to install the core modules which are HAl, Http Basic Authentication, REST Web Services, and serialization module. Here are 4 easy steps to configure REST API in Drupal using core modules: How to configure the REST API in Drupal using Core Modules: Then the resource plugin returns the data to the request handler and again acts with the serializer before sending as response. The resource plugin takes the data from incoming request and retrieves the valid information from the database. The request handler matches the up the resource with the appropriate resource handler.Īgain, request is sent to the Resource plugin. Then deserialize sends to the request handler. The requests are then sent to deserialize to normalize the data. The request handler interfaces with the REST module and is responsible for the requests. The Request Handler is responsible for accepting the request. This image describes the pipeline of the REST response.Īccording to the image, first the client sends a request, and the request goes to the request handler. This way we can configure our API endpoints by editing the YML files. Rest UI is a helpful module which exposes our RESTful web services configuration via the admin UI. The serialization module is responsible for deserializing and serializing request response data. ![]() Resource plugin is responsible for retrieving the data from the database. A good example of resource plugin can be found in the DB log module which provides an API endpoint for watchdog entries. The RESTful web services module handles the resources plugin system as well as defining initial resource routes. The HTTP basic authentication module provides an authentication plugin which allows us to control access to our API resources based on the HTTP method. Mentioned below are some Drupal core and contributed modules that can help in exposing your APIs in Drupal. REST API interacts with the database and sends the response in JSON or XML formats. Initially the client sends the request using HTTP methods. The above image describes how REST API requests and gives the response to a client. PATCH : This method is used to update the data on the server.ĭELETE : This method is used to delete the data from the server. ![]() POST : This method is used to create data on a server. GET : This method is used to read the data from server. However, if you're still trying your hands out at creating a custom module in Drupal 8, these methods will work for a Drupal 8 setup too. In this post, you will be learning more about exposing your API in Drupal 9.ĭrupal 8 has now reached EOL. It accesses and uses data via HTTP requests to GET, PUT, POST and DELETE data types. A RESTful API is an API that conforms to the architectural style of REST (representational state transfer). REST API was one of them and it came shipped in core. Drupal 8 brought about significant architectural changes offering modern techniques to build digital experiences. ![]()
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