transac

transac client API

Node.js client for transacd server

Usage

npm install --save transac
 
var transac = require('transac');
 
function run(transac, cb){
  loadingData(function(err, data){
    if(err)return cb(err);
    transac.info('Loading Data', data.length + ' data loaded');
    cb();
  });
}
 
transac.exec('Building Indicators Data', 'http://localhost:3002', run, {locked: false});

transac.exec(transacName, serverUrl, fct, [options, callback])

• transacName {String} Transaction's label within the web interface
• serverUrl {String} Connexion string to the transac server
• fct {Function} Code to be run by transaction.
  • transac {Transac} instance
  • callback {Function} to end transaction processing. If it returns an error, or an exception is raised, transaction will be aborted else commited.
• options:
  • valueDate {Date} value date of the transaction: we may load today data computed yesterday
  • locked {Boolean} if locked a transaction can only be run once per value date, if we try to rerun client will throw an execption
  • nested {Boolean} A nested transaction can run many time in a value date, just on transaction will appear with the web client
• cb {Function} callback function called when fct will ended.

Transac instance methods

(info | warning | error)(label, message)

• label {String} message's label
• message {String} message's content (converted as html by web client)

(commit | abort)(label, message)

transparently used by transac to end a transaction depending on fct.callback.err value.