Spring Data, MongoTemplate save() and REST

Question

I develop a REST API and use Spring Data MongoTemplate for saving any resources on Mongo Database.

One of API is :

PUT /devices/{deviceId}

For REST compliant, I should return 200 for an update or 201 for create .

When I do a MongoTemplate.save(device) , how can I know if mongo do insert() or update() ?

Answer 1

Well, before you save your object into a MongoDB , check whether its ID is null . If null , you are doing insertion, if not null , you are doing an update.