Data providers and data feeds

QuoteLink uses the data provided by data vendors or brokers. They are often called simply feeds in the documentation and examples. There are two important feed categories: Streaming feeds and Snapshot feeds.

Streaming Feeds

A streaming feed is a feed able to send updates over the internet whenever the market changes.

Snapshot feeds

These are feeds that work like web pages: the information needs first to be requested first. To update the data it is necessary to request the data again. QuoteLink does it automatically so in practice when seen from the client applications they work just like the streaming feeds except that the changes (events) will happen only at specific intervals.

Managing Feeds

The feeds are managed using the 'Feeds Dialog' application. This can be invoked in several different ways:

by using WinQL auxiliary application:

run it directly on a command window or create a window shortcut

winql config

or click on the tray icon and use the menu Feeds

or use Windows menu:

Start > All programs > QuoteLink > Feeds

The methods above are also the recommended of configuring feeds for users building applications using .NET framework. Once a feed has been configured it can be used on the same machine without further configuration.