public async Task GetUserBackpackAssets()
{
var apiKey = "API KEY";
var json = "SESSION JSON CONTENT";
var steamId = 76561198000000000;
// App Id of the App or Game to retrieve backpack assets
var appId = AppIds.TeamFortress2;
var webSession = JsonConvert.DeserializeObject <WebSession>(json);
var webAccess = new SteamWebAccess(webSession);
var webApi = new SteamWebAPI(apiKey, webAccess);
var userBackpack = await Backpack.GetBackpack(webApi, new SteamID(webSessionJson), appId);
var assets = userBackpack.GetAssets();
foreach (var asset in assets)
{
// Do something with asset
var assetId = asset.AssetId;
var amount = asset.Amount;
var defIndex = asset.DefinitionIndex;
var assetDescription = await userBackpack.GetAssetDescription(asset);
// Do something with assetDescription
var assetName = assetDescription.Name;
var isAssetTradable = assetDescription.IsTradable;
}
}
public async Task GetUserInventoryAssets()
{
var webSessionJson = "SESSION JSON CONTENT";
var steamId = 76561198000000000;
var webSession = JsonConvert.DeserializeObject <WebSession>(webSessionJson);
var webAccess = new SteamWebAccess(webSession);
var userInventory = await UserInventory.GetInventory(webAccess, new SteamID(webSessionJson));
// App Id of the App or Game to retrieve assets
var appId = AppIds.DotA2;
// Context Id of the App inventory context to retrieve assets
var contextId = ContextIds.DotA2.Backpack;
var assets = await userInventory.GetAssets(appId, contextId);
foreach (var asset in assets)
{
// Do something with asset
var assetId = asset.AssetId;
var amount = asset.Amount;
var assetDescription = await userInventory.GetAssetDescription(asset);
// Do something with assetDescription
var assetName = assetDescription.Name;
var isAssetTradable = assetDescription.IsTradable;
}
}
public async Task CreateANewTradeOffer()
{
var apiKey = "API KEY";
var json = "SESSION JSON CONTENT";
var partnerSteamId = 76561198000000000;
var webSession = JsonConvert.DeserializeObject <WebSession>(json);
var webAccess = new SteamWebAccess(webSession);
var webApi = new SteamWebAPI(apiKey, webAccess);
var tradeOfferManager = new TradeOfferManager(webApi, webAccess, TradeOfferOptions.Default);
if (!await tradeOfferManager.ValidateAccess(new SteamID(partnerSteamId)))
{
// Can't propose a trade offer to this user
// Maybe inventory is private
return;
}
// Get partner inventory
var partnerInventory = await tradeOfferManager.GetPartnerInventory(new SteamID(partnerSteamId));
// Get all partner dota2 assets
var partnerDota2Assets = await partnerInventory.GetAssets(AppIds.DotA2);
// We don't want to give any asset xD
var ourAssets = new Asset[0];
var newTradeOfferItemsList = new NewTradeOfferItemsList(ourAssets, partnerDota2Assets.Cast <Asset>().ToArray());
var tradeOfferMessage = "Give me your Dota2 items";
var sentTradeOfferId = await tradeOfferManager.Send(new SteamID(partnerSteamId), newTradeOfferItemsList, tradeOfferMessage);
// We can also get the trade offer
var sentTradeOffer = await tradeOfferManager.GetTradeOffer(sentTradeOfferId);
}
public static async Task <UserInventory> GetInventory(SteamWebAccess steamWebAccess, SteamID steamId)
{
return(new UserInventory(
steamWebAccess,
steamId,
await GetInventoryOverview(steamWebAccess, steamId).ConfigureAwait(false),
GetUserInventory));
}
public TradeOfferManager(
SteamWebAPI steamWebAPI,
SteamWebAccess steamWebAccess,
TradeOfferOptions tradeOfferOptions)
{
SteamWebAccess = steamWebAccess ?? throw new ArgumentNullException(nameof(steamWebAccess));
SteamWebAPI = steamWebAPI ?? throw new ArgumentNullException(nameof(steamWebAPI));
_tradeOfferOptions = tradeOfferOptions ?? TradeOfferOptions.Default;
}
private static async Task <UserInventoryApp[]> GetInventoryOverview(
SteamWebAccess steamWebAccess,
SteamID steamId)
{
var regex = new Regex("var g_rgAppContextData = (.*?);");
Match matched = null;
for (var i = 0; i < 3; i++)
{
try
{
var inventoryPageResponse = await steamWebAccess.FetchString(
new SteamWebAccessRequest(
string.Format(UserInventoryUrl, steamId.ConvertToUInt64()),
SteamWebAccessRequestMethod.Get,
null
)
).ConfigureAwait(false);
if (!string.IsNullOrWhiteSpace(inventoryPageResponse))
{
matched = regex.Match(inventoryPageResponse);
if (matched.Success)
{
break;
}
}
}
catch (WebException)
{
continue;
}
await Task.Delay(TimeSpan.FromSeconds(0.3)).ConfigureAwait(false);
}
if (matched?.Success != true ||
matched.Groups.Count <= 1 ||
!matched.Groups[1].Success ||
string.IsNullOrWhiteSpace(matched.Groups[1].Value))
{
throw new UserInventoryFetchOverviewException(steamId);
}
try
{
var overviewResult =
JsonConvert.DeserializeObject <Dictionary <long, InventoryApp> >(matched.Groups[1].Value);
return(overviewResult?.Values.Select(app => app.ToUserInventoryApp()).ToArray());
}
catch (Exception e)
{
throw new UserInventoryFetchOverviewException(steamId, e);
}
}
internal Trade(
SteamID other,
SteamWebAccess steamWebAccess,
TradeOptions tradeOptions = null)
{
PartnerSteamId = other;
_steamWebAccess = steamWebAccess ?? throw new ArgumentNullException(nameof(steamWebAccess));
_tradeOptions = tradeOptions ?? TradeOptions.Default;
}
protected override async Task <bool> GetGuestSession()
{
// Get a new SessionId
SteamWebAccess = SteamMobileWebAccess.GetGuest();
(await OperationRetryHelper.Default
.RetryOperationAsync(() => SteamWebAccess.FetchBinary(new SteamWebAccessRequest(LoginInitializeUrl)))
.ConfigureAwait(false)).Dispose();
return(!string.IsNullOrWhiteSpace(SteamWebAccess?.Session?.SessionId));
}
// ReSharper disable once TooManyDependencies
internal UserInventory(
SteamWebAccess steamWebAccess,
SteamID steamId,
UserInventoryApp[] inventoryApps,
InventoryRetrieveDelegate getInventoryDelegate)
{
_steamWebAccess = steamWebAccess;
SteamId = steamId;
_getInventoryDelegate = getInventoryDelegate;
_inventoryApps = new List <UserInventoryApp>(inventoryApps ?? new UserInventoryApp[0]);
}
public async Task ManageTradeOffers()
{
var apiKey = "API KEY";
var json = "SESSION JSON CONTENT";
var webSession = JsonConvert.DeserializeObject <WebSession>(json);
var webAccess = new SteamWebAccess(webSession);
var webApi = new SteamWebAPI(apiKey, webAccess);
var tradeOfferManager = new TradeOfferManager(webApi, webAccess, TradeOfferOptions.Default);
tradeOfferManager.TradeOfferReceived += (sender, args) =>
{
// Received new trade offer
// Accept it right away if it is a gift
if (!args.TradeOffer.IsOurOffer && args.TradeOffer.OurAssets.Length == 0)
{
await tradeOfferManager.Accept(args.TradeOffer);
}
};
tradeOfferManager.TradeOfferInEscrow += (sender, args) =>
{
// A trade offer is in escrow
// If escrow is longer than 10 days, decline or cancel
var escrowDuration = await tradeOfferManager.GetEscrowDuration(args.TradeOffer);
if (escrowDuration.MyEscrowDuration > TimeSpan.FromDays(10))
{
if (args.TradeOffer.IsOurOffer)
{
await tradeOfferManager.Cancel(args.TradeOffer);
}
else
{
await tradeOfferManager.Decline(args.TradeOffer);
}
}
};
tradeOfferManager.StartPolling();
// Wait for the end of program
tradeOfferManager.Dispose();
}
public static async Task <UserInventory> GetInventoryAlternate(SteamWebAccess steamWebAccess, SteamID steamId)
{
UserInventoryApp[] overview = null;
try
{
overview = await GetInventoryOverview(steamWebAccess, steamId).ConfigureAwait(false);
}
catch (Exception)
{
// ignored
}
return(new UserInventory(
steamWebAccess,
steamId,
overview,
GetUserInventoryAlternate));
}
public async Task GetUserInventoryApps()
{
var webSessionJson = "SESSION JSON CONTENT";
var steamId = 76561198000000000;
var webSession = JsonConvert.DeserializeObject <WebSession>(webSessionJson);
var webAccess = new SteamWebAccess(webSession);
var userInventory = await UserInventory.GetInventory(webAccess, new SteamID(webSessionJson));
foreach (var inventoryApp in userInventory.InventoryApps)
{
var appId = inventoryApp.AppId;
var appName = inventoryApp.Name;
// Do something with appId and appName
foreach (var appContext in inventoryApp.Contexts)
{
var contextId = appContext.ContextId;
var contextName = appContext.ContextName;
// Do something with appId, contextId and contextName
}
}
}
public TradeManager(SteamWebAPI steamWebAPI, SteamWebAccess steamWebAccess, TradeOptions options = null)
{
_steamWebAPI = steamWebAPI ?? throw new ArgumentNullException(nameof(steamWebAPI));
_steamWebAccess = steamWebAccess ?? throw new ArgumentNullException(nameof(steamWebAccess));
TradeOptions = options;
}
// ReSharper disable once ExcessiveIndentation
// ReSharper disable once TooManyArguments
private static async Task <UserAppInventory> GetUserInventoryAlternate(
SteamWebAccess steamWebAccess,
SteamID steamId,
long appId,
long contextId)
{
var startPosition = 0;
var assets = new List <UserInventoryAsset>();
var assetDescriptions = new List <UserInventoryAssetDescription>();
var appInfos = new List <UserInventoryApp>();
do
{
var retrySuccess = false;
for (var retry = 0; retry < 3; retry++)
{
try
{
var response = await steamWebAccess.FetchObject <InventoryResponseV1>(
new SteamWebAccessRequest(
string.Format(UserInventoryV1Url, steamId.ConvertToUInt64(), appId,
contextId),
SteamWebAccessRequestMethod.Get,
startPosition > 0
? QueryStringBuilder.FromDynamic(new
{
start = startPosition
})
: null
)
{
Referer = TradeOfferManager.TradeOfferNewUrl
}
).ConfigureAwait(false);
if (response?.Success == true)
{
retrySuccess = true;
foreach (var inventoryAsset in response.Assets)
{
var steamInventoryAsset = inventoryAsset.Value.ToSteamInventoryAsset(appId, contextId);
if (!assets.Contains(steamInventoryAsset))
{
assets.Add(steamInventoryAsset);
}
}
foreach (var itemDescription in response.Descriptions)
{
var steamAssetDescription = itemDescription.Value.ToSteamAssetDescription();
if (!assetDescriptions.Contains(steamAssetDescription))
{
assetDescriptions.Add(steamAssetDescription);
}
}
foreach (var app in response.Apps ?? new InventoryAppInfoV1[0])
{
appInfos.Add(app.ToSteamInventoryAsset());
}
if (!response.More)
{
return(new UserAppInventory(assets.ToArray(), assetDescriptions.ToArray(),
appInfos.ToArray()));
}
startPosition = response.MoreStart;
break;
}
}
catch (WebException)
{
// ignored
}
}
if (!retrySuccess)
{
throw new UserInventoryFetchAssetsException(appId, contextId, steamId);
}
await Task.Delay(TimeSpan.FromMilliseconds(300)).ConfigureAwait(false);
} while (true);
}
// ReSharper disable once TooManyArguments
// ReSharper disable once MethodTooLong
// ReSharper disable once ExcessiveIndentation
private static async Task <UserAppInventory> GetUserInventory(
SteamWebAccess steamWebAccess,
SteamID userSteamId,
long appId,
long contextId)
{
var startAssetId = 0L;
var assets = new List <UserInventoryAsset>();
var assetDescriptions = new List <UserInventoryAssetDescription>();
do
{
var retrySuccess = false;
Exception lastException = null;
for (var retry = 0; retry < 3; retry++)
{
try
{
var response = await steamWebAccess.FetchObject <InventoryResponseV2>(
new SteamWebAccessRequest(
string.Format(UserInventoryV2Url, userSteamId.ConvertToUInt64(),
appId,
contextId),
SteamWebAccessRequestMethod.Get,
startAssetId > 0
? QueryStringBuilder.FromDynamic(new
{
l = "english",
count = 2000,
start_assetid = startAssetId
})
: QueryStringBuilder.FromDynamic(new
{
l = "english",
count = 2000
})
)
{
Referer = string.Format(UserInventoryUrl,
userSteamId.ConvertToUInt64())
}
).ConfigureAwait(false);
if (response?.Success == true)
{
retrySuccess = true;
foreach (var inventoryAsset in response.Assets)
{
var steamInventoryAsset = inventoryAsset.ToSteamInventoryAsset();
if (!assets.Contains(steamInventoryAsset))
{
assets.Add(steamInventoryAsset);
}
}
foreach (var itemDescription in response.Descriptions)
{
var steamAssetDescription = itemDescription.ToSteamAssetDescription();
if (!assetDescriptions.Contains(steamAssetDescription))
{
assetDescriptions.Add(steamAssetDescription);
}
}
if (!response.MoreItems || response.LastAssetId == null)
{
return(new UserAppInventory(assets.ToArray(), assetDescriptions.ToArray(), null));
}
startAssetId = response.LastAssetId.Value;
break;
}
}
catch (WebException e)
{
lastException = e;
}
}
if (!retrySuccess)
{
throw new UserInventoryFetchAssetsException(appId, contextId, userSteamId, lastException);
}
await Task.Delay(TimeSpan.FromMilliseconds(300)).ConfigureAwait(false);
} while (true);
}
public async Task Trade()
{
var apiKey = "API KEY";
var json = "SESSION JSON CONTENT";
var partnerSteamId = 76561198000000000;
var webSession = JsonConvert.DeserializeObject <WebSession>(json);
var webAccess = new SteamWebAccess(webSession);
var webApi = new SteamWebAPI(apiKey, webAccess);
var tradeManager = new TradeManager(webApi, webAccess, TradeOptions.Default);
var trade = await tradeManager.CreateTrade(new SteamID(partnerSteamId));
var tradePartnerInventory = await trade.GetPartnerInventory();
trade.PartnerMessaged += (sender, args) =>
{
var partnerMessage = args.Message;
if (partnerMessage == "hello" || args.Message == "hey")
{
trade.SendMessage("Hello to you too.");
}
};
trade.PartnerOfferedItemsChanged += (sender, args) =>
{
if (args.Action == PartnerOfferedItemsChangedAction.Added)
{
var userAssets = await tradePartnerInventory.GetAssets(args.Asset.AppId, args.Asset.ContextId);
foreach (var userAsset in userAssets)
{
if (userAsset.Equals(args.Asset))
{
// This is our asset
var assetDescription = await tradePartnerInventory.GetAssetDescription(userAsset);
// Do something with assetDescription
break;
}
}
}
};
trade.PartnerReadyStateChanged += (sender, args) =>
{
// If this is a gift, set ready and accept
if (trade.MyOfferedItems.Length == 0)
{
await trade.SetReadyState(true);
await trade.AcceptTrade();
}
};
// Wait for trade to end
trade.Dispose();
}