php-steam-tradeoffers

Steam Trade Offers library for PHP (based on node.js library by Alex7Kom)

All the same functions as in Alex7Kom library

Note: By using this library you automatically agree to Steam API Terms of Use

Installation

require_once 'classes/steam.class.php'

Usage

Instantiate a steam object...

$steam = new SteamTrade();

...then setup session:

$steam->setup('sessionID', 'cookies');

This setup will automatically register and retrieve Steam API key for you.

Methods

The first param for all methods (except setup) is an associative array of options.

setup(sessionId, cookies)

As noted above, this method is used to setup a web session. It also tries to retrieve Web API key.

Options:

• sessionID is a valid web session ID.
• webCookie is an array of cookies.

If failed to retrieve Web API key due to limited account, setup will throw the error.

loadMyInventory(options)

Loads your inventory for the given app and context. For example, use 440 and 2 for TF2 and 570 and 2 for Dota 2.

Options:

• appId is the Steam AppID
• contextId is the inventory context Id
• language (optional) is the language for item descriptions
• tradableOnly (optional) is a boolean flag that defaults to true to return tradable items only

loadPartnerInventory(options)

Loads your partner inventory for the given app and context.

Options:

• partnerSteamId is the SteamID of the trade partner
• appId is the Steam AppID
• contextId is the inventory context Id
• tradeOfferId (optional) is needed to load private inventory of the trade partner for received trade offer
• language (optional) is the language for item descriptions

makeOffer(options)

Makes a trade offer to the partner.

Options:

• partnerAccountId or partnerSteamId, you need only one of those.
• accessToken (optional) is a token from the public Trade URL of the partner.
• itemsFromMe are the items you will lose in the trade.
• itemsFromThem are the items you will receive in the trade.
• counteredTradeOffer (optional) is the ID to a trade offer you are countering.
• message (optional) is a message to include in the offer.

itemsFromMe and itemsFromThem both are arrays of item objects that look like this:

array(
    "appid" => 440,
    "contextid" => 2,
    "amount" => 1,
    "assetid" => "1627590398"
)

If success it will return an object with tradeofferid of the newly created trade offer.

getOffers(options)

getOffer(options)

The first method loads a list of trade offers, and the second loads just a single offer.

Options:

• See Steam Web API/IEconService.

In return you will get an object that Steam Web API returns. The only thing to note is that the wrapper adds a property steamid_other with the SteamID of the trade partner to each CEcon_TradeOffer object in received trades.

declineOffer(options)

acceptOffer(options)

cancelOffer(options)

declineOffer or acceptOffer that was sent to you. cancelOffer that you sent.

Options:

• tradeOfferId is a trade offer Id

In return you will get an object with response from Steam, but don't expect anything meaningful in it.

getOfferToken()

In return you will get the offer token of the bot, extracted from its trade offer URL.

getItems(options)

Options:

• tradeId is the ID of the completed trade you want to get items for, available as a tradeid property on offers from getOffers or getOffer

In return you will get an array of items acquired in a completed trade.