Before any download can happen, the Steam client must be running, and your app ID must be known. You usually do this in your main() or Init() function.
The API initialization is highly reliable when environmental conditions are met. However, it is sensitive to the user's local setup. steam api init download
You need to define a callback member variable in your class: Before any download can happen, the Steam client
Initialize the Web API to hit ISteamEconomy/GetAssetPrices every hour. Download the JSON, parse it, and send you an SMS when a game drops 90% off. Before any download can happen