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todos: fetchInventory() - referrer header, next batch of items & error handling #8

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todos: fetchInventory() - referrer header, next batch of items & error handling #8

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42 changes: 37 additions & 5 deletions extension/scripts/background-worker.js
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Original file line number Diff line number Diff line change
Expand Up @@ -9,11 +9,43 @@ async function getSteamId () {
}

async function fetchInventory (steamId, appId, contextId) {
// TODO: Send referrer header
// TODO: Load next batch of items (steam does 75 then 2000)
// TODO: Error handling
const inventory = await fetch(`https://steamcommunity.com/inventory/${steamId}/${appId}/${contextId}?l=english&count=75`).then(r => r.json())
return inventory
const baseFetchUrl = `https://steamcommunity.com/inventory/${steamId}/${appId}/${contextId}`;
let fetchUrl = `${baseFetchUrl}?l=english&count=75`; // First fetch for 75 items

const fetchOptions = {
headers: {
'Referrer': 'https://steamcommunity.com/profiles/' + steamId + '/inventory/',
'Accept': 'application/json'
}
};

// Fetch the first set of items
let response = await fetch(fetchUrl, fetchOptions);
if (!response.ok) {
throw new Error(`Failed to fetch inventory: ${response.statusText}`);
}
let inventory = await response.json();

// Check if more items are available and fetch the next batch of up to 2000 items
if (inventory.more_items) {
const lastAssetId = inventory.last_assetid;
fetchUrl = `${baseFetchUrl}?l=english&count=2000&start_assetid=${lastAssetId}`;

response = await fetch(fetchUrl, fetchOptions);
if (!response.ok) {
throw new Error(`Failed to fetch additional inventory: ${response.statusText}`);
}
const additionalInventory = await response.json();

// Combine the first and second fetch results
inventory.assets = inventory.assets.concat(additionalInventory.assets || []);
inventory.descriptions = inventory.descriptions.concat(additionalInventory.descriptions || []);
// Update the pagination and count details based on the second fetch
inventory.last_assetid = additionalInventory.last_assetid;
inventory.more_items = additionalInventory.more_items;
}

return inventory;
}

async function getUserInventory (appId, contextId) {
Expand Down