nl_tokens: Read the dataset client from db
pl_tokens: function doReadDatasetClient ( datasetClientId , cb ) { <mask> ( 'doReadDatasetClient datasetClientId = %s' , datasetClientId ) ; var col = mongoClient . collection ( DATASETCLIENTS_COLLECTION ) ; col . findOne ( { id : datasetClientId } , function ( err , datasetClient ) { if ( err ) { debugError ( 'Failed to read datasetClient due to error %s :: datasetClientId = %s' , err , datasetClientId ) ; } return cb ( err , datasetClient ) ; } ) ; }