Crafting a trade

[theFarmer]

Hi all! 

I am able to generate trades from my "bot" account using `offer.addMyItems(items)` as long as there aren't more than 1 of each item. The moment I trie to add a second item I face issues. I am combining and updating the amount. Here are two console logs:
 

[[[allAssetIds]]] [
  '4472701497518213337',
  '4472701497518213337',
  '4472701497518213337',
  '4472701497518213337',
  '4472701497519256933'
]

 

[[[FORMATEED TEMS]]] [
  {
    appid: 252490,
    contextid: '2',
    assetid: '4472701497518213337',
    amount: 4
  },
  {
    appid: 252490,
    contextid: '2',
    assetid: '4472701497519256933',
    amount: 1
  }
]

The first is the raw items I need to add, and the second is my "formatted" items. However, I get the "Error: There was an error sending your trade offer.  Please try again later. (26)" error. It only happens if there is more than 1 of an item, so I think I'm doing something wrong rather than something wrong with the library.

 

Thanks so much!

[Dr. McKay]

What's generating "allAssetIds"? You should never see the same ID more than once.

[theFarmer]

allAssetIDs is just an external array of "owed items" that I loop through to construct the formatted array. If select the same skin twice, I just update the amount to 2 (or whatever number is needed)

Edited December 19, 2023 by theFarmer

[theFarmer]

I am just noting my progress. It seems that the assetid is not unique to the item, even though I assumed it was. Searching for the name, I was able to find that the amount of items exists, just that each one's assetid was different. So, I will try to take my requested items and match them against the inventory using the market_hash_name instead. I will post back with the outcome on this.

Yep! That fixed it. Maybe a better way but my solution looks something like:
 

function prepareTrade(combinedItems, inventory) {
  let allAssetIds = [];
  combinedItems.forEach(item => {
    // Find the index of the item in inventory that matches the current item
    const foundIndex = inventory.findIndex(invItem => invItem.market_hash_name === item.markethashname);
    if (foundIndex !== -1) {
      // If the item is found, push its asset id and remove it from the inventory
      allAssetIds.push(inventory[foundIndex].assetid);
      inventory.splice(foundIndex, 1);
    }
  });
  return allAssetIds;
}