MongoDB: db.isMaster() method

db.isMaster

The db.isMaster() method is used to return a document that reports the state of the replica set. If the mongod is a member of a replica set, then the ismaster and secondary fields report if the instance is the primary or if it is a secondary member of the replica set.

Syntax:

db.isMaster()

Example: MongoDB: db.isMaster() method

db.isMaster();

Output:

> db.isMaster();
{
        "ismaster" : true,
        "maxBsonObjectSize" : 16777216,
        "maxMessageSizeBytes" : 48000000,
        "maxWriteBatchSize" : 1000,
        "localTime" : ISODate("2016-01-11T11:44:00.610Z"),
        "maxWireVersion" : 2,
        "minWireVersion" : 0,
        "ok" : 1
}

Retrieve the restaurants data from here

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