Checking if key exists in cache¶
This API request checks if an object exists in cache. If object is present in cache, the method returns true, otherwise - false.
Backendless.Cache.contains( key )
.then( function( result ) {
})
.catch( function( error ) {
});
where:
Argument | Description |
---|---|
key |
identifies the object to check in cache. |
Example¶
var successCallback = function( response ) {
console.log( "object exists in cache - " + response );
};
var failureCallback = function( fault ) {
console.log( "error - " + fault.message );
};
Backendless.Cache.contains( "firstorder" )
.then( successCallback )
.catch( failureCallback );