added store module

[Derfirm]

Added interface for steam purchases.

[landscape-bot]

Repository health increased by 0.38% when pulling ed66fcf on Derfirm:steamapi-store into 6b5a131 on smiley:master.

• 1 new problem was found (including 0 errors and 1 code smell).
• No problems were fixed.

[smiley]

Which store does this implement? Main Steam store (games, DLC, etc.) or the marketplace? (cards, CS:GO skins, TF2 items, etc.)

[Derfirm]

It's implement in-game purchases (without web purchase) .
Steam calls it "microtransactions".

[smiley]

Do these actually go through somehow? How do you authorize a transaction without an authenticated Steam ID? (Or is the steamid pre-authenticated somehow?)

[Derfirm]

for my game I use authentication using the ticket:

def retrieve_user(ticket, appid):
    return APIConnection().call("ISteamUserAuth", "AuthenticateUserTicket", "v1", appid=appid,    ticket=ticket)

where ticket is Ticket from GetAuthSessionTicket. (client)
after that, I check errors and get steamid

if hasattr(user_params, 'error'):
    return {'rc': 2, 'steamerrorcode':  user_params.error.errorcode}
steamid = user_params.params.steamid

[smiley]

Since this is used for the in-game item stores, rename this to something more specific, like SteamIngameStore. (I plan to add an API for the main store someday)

[smiley]

Ah, got it. I've added a few notes to fix-up; correct those and I'll merge this in!

[landscape-bot]

Repository health increased by 0.48% when pulling 0d8fa91 on Derfirm:steamapi-store into 6b5a131 on smiley:master.

• 1 new problem was found (including 0 errors and 0 code smells).
• No problems were fixed.

[smiley]

One last question: why is quantity & description specified with a [0]? Is it because the API can accept more than one object in the same transaction?

[Derfirm]

excerpt from In-Game Purchasing Integration Guide

LINEITEM             
    itemid[n]
    qty[n]  
    amount[n]   
    description[n]  
    category[n] 
END LINEITEM

An order may have any number of Lineitem entries
and “n” is the zero based index of the Lineitem.
so yes, This command allows you to create a shopping cart of one or more items for a user)