Integration from website data

We are a service that manages stock inventory feeds for multi channel sales. It allows stock control to be in sync between our website and stores like eBay. This means we don't oversell products. We need to pass them our data using their APIs.

We already provide sample code to call their APIs to manage the data feeds. The main feeds we are interested in is the product feed and inventory feed.

The work we require to be done is to take storefeeders sample code and turn it into .NET 3.5 dll modules.

Once these have been developed we will develop SQL Server programs that call the dll modules and pass the required product and inventory data.

We know this is possible as we have used Visual Studio to develop a simple dll which we have then placed on our server and managed to call from a SQL Server program passing a simple value from the database.

I want to make it clear that we will develop the sql code and do the call to the dll, but the dlls must be written in a way that they can be called in this way and that we can pass the product and inventory data to them.

I can provide the API documents.