@barchart/marketdata-utilities-js

A JavaScript library for parsing and interpreting Barchart's DDF protocol

Deprecation

This library is deprecated. It has been subsumed by @barchart/marketdata-api-js -- as of major version 4. Please upgrade as soon as possible.

Upgrade Instructions

Install the new library, as follows:

npm install @barchart/marketdata-api-js -S

All utilities (from this project) can now be found here:

@barchart/marketdata-api-js/lib/utilities

Upgrade Comments

• Object and function names have been changed slightly; however, it shouldn't be too difficult to resolve.
• In this library, we often exported JavaScript objects which wrapped functions. After the upgrade, we attempt to export plain functions. For example:
  • old: module.exports = { format: function(x) { } }
  • new: module.exports = format(x) { }
• Factory functions to build price and date/time formatters still exist (which use closures to store defaults). See the following:
  • /lib/utilities/format/factories/price.js
  • /lib//utilities/format/factories/quote.js