Drupal 8 RESTful Web Services

Step 1: Activate RESTful Webservice

Active modules:

HAL (hal)

RESTful Web Services (rest)    

HTTP Basic Authentication (basic_auth)

Download and active contrib modules:

REST UI (restui)

Step 2: Configure

Go to the Rest configure page (Administration -> Configuration -> Web services -> Rest )

- Select the service / Url to enable webservice

- Select the Methode (GET/POST/DELETE/PATCH)

- Select request formats (hal_json, json, xml ... Ex, here : hal_json)

- Select Authentication type (here : basic_auth)

Step 3 : Call Web Services

Example : Read a node

http://mysite.com/node/1?_format=hal_json