By using the an operations parameter, you can update multiple objects at once. As with single object updating, you should use the PUT method, (there is no need to specify the object ID).

📘
Note
See the full list of supported operators, and read more about the operations parameters here.

https://api.appery.io/rest/1/db/collections/&lt;collectionName&gt;/

Example

By mixing the where and operations parameters, you can conditionally update multiple objects. Only objects that satisfy the where condition will be updated.

The query below finds all of the records where studentId equals 20 and changes it to 60.

curl -X PUT
  -H "X-Appery-Database-Id: 544a5cdfe4b03d005b6233b9"
  -H "Content-Type: application/json"
  -d 'where={"studentId":20}'
  -d 'operations={"$set":{"studentId":60}}'
https://api.appery.io/rest/1/db/collections/students/

Also, an update parameter is available when updating multiple objects. You can specify what fields the object should be updated in, and the values to change them.

📘
Note
If the operations object is specified then the update parameter is fully ignored. Their functionality can not be used simultaneously.

# Example
The following example finds all of the records where the **studentId** equals ***20***, and changes **studentName** field to ***60***:

curl -X PUT
  -H "X-Appery-Database-Id: 544a5cdfe4b03d005b6233b9"
  -H "Content-Type: application/json"
  -d 'where={"studentId":20}'
  -d 'update={"studentName":60}'
https://api.appery.io/rest/1/db/collections/students/

📘
Note
Read more about the where and operations parameters.

Updating arrays and pointers is also available for the update parameter. If we assume that your collection contains a column user with a pointer type to _users collection, you can update the marks column type of array.

Example

The example finds all the records where **studentId** equals ***20***, and changes the value in the **user** column to ***5540ed6ae4b020ea2fabaf44***. It also adds a new array values into **marks** array – ***5*** and ***2***.

curl -X PUT
-H "X-Appery-Database-Id: 544a5cdfe4b03d005b6233b9"
-H "Content-Type: application/json"
-d 'where={"studentId":20}'
-d 'update={"user": {"collName":"_users", "_id":"5540ed6ae4b020ea2fabaf44"}, "marks":{"__op":"AddUnique","objects":[5, 2]}}'
https://api.appery.io/rest/1/db/collections/students/