Steam Trade Offers for Node.js and io.js

steam-tradeoffers is a library for Node.js and io.js written in JavaScript. It allows you to automate Steam trading using trade offers. It was designed with node-steam in mind, but does not depend on it, so you can use it separately if you can supply it with session information. Some of the methods of the library are wrappers for Steam Web API.

Read the FAQ first if you have any questions.

If your question is not answered here, please ask it in https://github.com/steam-forward/node-steam-forum, do not open an issue here. Issues are only for bugs and feature requests.

Installation

npm install steam-tradeoffers

Usage

Instantiate a SteamTradeOffers object...

var SteamTradeOffers = require('steam-tradeoffers');
var offers = new SteamTradeOffers();

...then setup session:

offers.setup({
  sessionID: sessionID,
  webCookie: cookies,
  APIKey: webAPIKey
});

Examples

You'll need to install node-steam, steam-weblogon, and steam-web-api-key in order to run the examples.

The storehouse.js file contains an example of handling incoming trade offers.

The offerbot.js is an example of making a trade offer.

On first launch both of the examples will 'crash'. Check your email for Steam Guard code and edit an example file to add it, then run it again.

Please read the FAQ before creating an issue about examples.

Methods

The first param for all methods is an object. The second param is callback. All callbacks supplied with Error as the first argument or null if no errors occured.

setup(options[, callback])

As noted above, this method is used to setup a web session. If you want to operate with trade offers right after startup, do it in callback of this method.

Options:

• sessionID is a valid web session ID. In node-steam, you can use the webSessionID event to get it.
• webCookie is an array of cookies. In node-steam, you can use the webLogOn method to get it.
• APIKey is a Web API key for the account you use to trade. API key of another account won't work.

loadMyInventory(options, callback)

Loads your inventory for the given app and context. For example, use 440 and 2 for TF2 and 570 and 2 for Dota 2. The second argument to callback will be an array of item objects in case of success.

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, callback)

Loads your partner inventory for the given app and context.

Options:

• partnerSteamId is the SteamID of the trade partner. You need specify only partnerAccountId or partnerSteamId.
• partnerAccountId is the Steam Account ID of the trade partner. You need specify only partnerAccountId or partnerSteamId.
• 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[, callback])

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:

{
    "appid": 440,
    "contextid": 2,
    "amount": 1,
    "assetid": "1627590398"
}

If success the second param to callback will be an object with tradeofferid of the newly created trade offer.

getOffers(options, callback)

getOffer(options, callback)

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

Options:

• See Steam Web API/IEconService.

The second argument to callback will be 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[, callback])

acceptOffer(options[, callback])

cancelOffer(options[, callback])

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

Options:

• tradeOfferId is a trade offer Id

The second argument to callback will be an object with response from Steam, but don't expect anything meaningful in it.

getOfferToken(callback)

The second argument to callback will be the offer token of the bot, extracted from its trade offer URL.

getItems(options, callback)

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

The second argument to callback will be an array of items acquired in a completed trade.

License

The MIT License (MIT)

Copyright (c) 2013-2015 Alexey Komarov alex7kom@gmail.com

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.