46 lines
1.8 KiB
Markdown
46 lines
1.8 KiB
Markdown
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# Fetching Additional Products
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This step is optional.
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If your Application has a very large catalog of available products, you may find it takes too long to fetch them all in one batch.
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An alternative is to initialise Unity IAP with an initial set of products, then fetch additional products in batches using the FetchAdditionalProducts method of the IStoreController:
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````
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/// <summary>
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/// This will be called when Unity IAP has finished initialising.
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/// </summary>
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public void OnInitialized(IStoreController controller, IExtensionProvider extensions)
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{
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var additional = new HashSet<ProductDefinition>() {
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new ProductDefinition("coins.500", ProductType.Consumable),
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new ProductDefinition("armour", ProductType.NonConsumable)
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};
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Action onSuccess = () => {
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Debug.Log("Fetched successfully!");
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// The additional products are added to the set of
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// previously retrieved products and are browseable
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// and purchasable.
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foreach (var product in controller.products.all) {
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Debug.Log(product.definition.id);
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}
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};
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Action<InitializationFailureReason> onFailure = (InitializationFailureReason i) => {
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Debug.Log("Fetching failed for the specified reason: " + i);
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};
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controller.FetchAdditionalProducts(additional, onSuccess, onFailure);
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}
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````
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Once additional products have been fetched they are added to the set of existing products previously retrieved and may be iterated over and purchased.
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FetchAdditionalProducts behaves similarly to initialization:
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* If network is unavailable it will wait until network become available to retrieve products
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* It will fail for the same unrecoverable reasons initialization can fail, such as IAP being disabled in device settings
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**You must not call FetchAdditionalProducts while a previous call to it is still pending.**
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