- Enable the module
- Need to enable serializer module in core.
- go to site information form to add apikey (any exsisting node id of content type page)
- go to /node-json to check json response to node
Output
"{\"nid\":[{\"value\":1}],\"uuid\":[{\"value\":\"6f716b09-2f16-4b02-b346-0db6c06a8d41\"}],\"vid\":[{\"value\":1}],\"langcode\":[{\"value\":\"en\"}],\"type\":[{\"target_id\":\"page\",\"target_type\":\"node_type\",\"target_uuid\":\"451216b5-3c00-4ce0-b6d7-4e51ecf8e1e9\"}],\"revision_timestamp\":[{\"value\":\"2019-07-13T08:15:15+00:00\",\"format\":\"Y-m-d\\\\TH:i:sP\"}],\"revision_uid\":[{\"target_id\":1,\"target_type\":\"user\",\"target_uuid\":\"84b8394c-e161-437a-9873-63a34b532924\",\"url\":\"\\\/user\\\/1\"}],\"revision_log\":[],\"status\":[{\"value\":true}],\"uid\":[{\"target_id\":1,\"target_type\":\"user\",\"target_uuid\":\"84b8394c-e161-437a-9873-63a34b532924\",\"url\":\"\\\/user\\\/1\"}],\"title\":[{\"value\":\"test\"}],\"created\":[{\"value\":\"2019-07-13T08:14:54+00:00\",\"format\":\"Y-m-d\\\\TH:i:sP\"}],\"changed\":[{\"value\":\"2019-07-13T08:15:15+00:00\",\"format\":\"Y-m-d\\\\TH:i:sP\"}],\"promote\":[{\"value\":false}],\"sticky\":[{\"value\":false}],\"default_langcode\":[{\"value\":true}],\"revision_translation_affected\":[{\"value\":true}],\"path\":[{\"alias\":null,\"pid\":null,\"langcode\":\"en\"}],\"body\":[]}"
- if node not present in db it will give you error access denied
##Reference
https://drupal.stackexchange.com/questions/191419/drupal-8-node-serialization-to-json https://www.drupal.org/docs/8/converting-drupal-7-modules-to-drupal-8/step-4-convert-drupal-7-variables-to-drupal-8