Updates multiple objects selected by a query with new values. The function returns a 200 code with empty response body.

#Parameters The method has the following parameters:

Argument	Description	Required
dbApiKey	Database API key.	Yes.
token	String with user token or database Master key.	No.
collectionName	String with database collection name.	Yes.
queryString	Query to select which objects will be updated. The JSON query object that was built in accordance with the documentation of MongoDB query.	Yes.
updateJSON	JSON object with fields of object that should be updated.	No.
operationsJSON	JSON update object with native MongoDB operations and fields of object that should be updated. The object was built in accordance with the documentation of MongoDB set operations. If `<operationsJSON>` object specified than update `<updateJSON>` param fully ignored. Their functionality cannot be used simultaneously. The following operations are supported: $set $unset $inc (Number type only) $mul (Number type only) $min (Number and Date type only) $max (Number and Date type only). Native operations works on the following data types: number, string, boolean, date.	No.

Examples

The following examples finds all students who are transfer students and then updates their major to undecided. This example uses the updateJSON parameter.

var dbApiKey = "57928860e4b00ef864f3dc24";
var result = Collection.multiUpdateObject(
  dbApiKey, 
  "Student", 
  '{isTransferStudent: true}', 
  {"major": {'name':'undecided'}}
);

This example performs an update using the native MongoDB operations (with operationsJSON parameter). This code will change any students who are transfer students to non-transfer students.

var dbApiKey = "57928860e4b00ef864f3dc24"
var result = Collection.multiUpdateObject(dbApiKey, "Student", '{isTransferStudent: true}', null, {
  "$set": {"isTransferStudent": false}
});

Note that native operations work on the following data types: number, string, boolean, date.