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Decrement by 1, return current

Atomically decrements by one the current value and returns the updated (current) value of the counter. Multiple concurrent client requests are guaranteed to return unique updated value.

// *******************************************
// Backendless.Counters approach
// *******************************************
Backendless.Counters.decrementAndGet( counterName )
 .then( function( result ) {
 })
 .catch( function( error ) {
 });

// *******************************************
// Backendless.Counters.of() approach
// *******************************************
var counter = Backendless.Counters.of( counterName );
counter.decrementAndGet()
 .then( function( result ) {
 })
 .catch( function( error ) {
 });

where:

Argument                Description
counterName name of the counter to decrement.

Example

var successCallback = function( response ) {
  console.log( "counter value is - " + response );
};

var failureCallback = function( fault ) {
  console.log( "error - " + fault.message );
};

// ************************************************
// Backendless.Counters approach
// ************************************************
Backendless.Counters.decrementAndGet( "my counter" )
 .then( successCallback )
 .catch( failureCallback );

// ************************************************
// Backendless.Counters.of() approach
// ************************************************
var myCounter = Backendless.Counters.of( "my counter" );
myCounter.decrementAndGet()
 .then( successCallback )
 .catch( failureCallback );