> For the complete documentation index, see [llms.txt](https://onestore-dev.gitbook.io/dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://onestore-dev.gitbook.io/dev/cht/tools/billing/v21/references.md).

# ONE store IAP References

* [Annotations](/dev/cht/tools/billing/v21/references/annotations.md)
  * [PurchaseClient.ConnectionState](/dev/cht/tools/billing/v21/references/annotations/purchaseclient.connectionstate.md)
  * [PurchaseClient.FeatureType](/dev/cht/tools/billing/v21/references/annotations/purchaseclient.featuretype.md)
  * [PurchaseClient.ProductType](/dev/cht/tools/billing/v21/references/annotations/purchaseclient.producttype.md)
  * [PurchaseClient.RecurringAction](/dev/cht/tools/billing/v21/references/annotations/purchaseclient.recurringaction.md)
  * [PurchaseClient.ResponseCode](/dev/cht/tools/billing/v21/references/annotations/purchaseclient.responsecode.md)
  * [PurchaseData.AcknowledgeState](/dev/cht/tools/billing/v21/references/annotations/purchasedata.acknowledgestate.md)
  * [PurchaseData.PurchaseState](/dev/cht/tools/billing/v21/references/annotations/purchasedata.purchasestate.md)
  * [PurchaseData.RecurringState](/dev/cht/tools/billing/v21/references/annotations/purchasedata.recurringstate.md)
  * [PurchaseFlowParams.ProrationMode](/dev/cht/tools/billing/v21/references/annotations/purchaseflowparams.prorationmode.md)
* [Classes](/dev/cht/tools/billing/v21/references/classes.md)
  * [AcknowledgeParams](/dev/cht/tools/billing/v21/references/classes/acknowledgeparams.md)
  * [AcknowledgeParams.Builder](/dev/cht/tools/billing/v21/references/classes/acknowledgeparams.builder.md)
  * [ConsumeParams](/dev/cht/tools/billing/v21/references/classes/consumeparams.md)
  * [ConsumeParams.Builder](/dev/cht/tools/billing/v21/references/classes/consumeparams.builder.md)
  * [IapResult](/dev/cht/tools/billing/v21/references/classes/iapresult.md)
  * [IapResult.Builder](/dev/cht/tools/billing/v21/references/classes/iapresult.builder.md)
  * [ProductDetail](/dev/cht/tools/billing/v21/references/classes/productdetail.md)
  * [ProductDetailsParams](/dev/cht/tools/billing/v21/references/classes/productdetailsparams.md)
  * [ProductDetailsParams.Builder](/dev/cht/tools/billing/v21/references/classes/productdetailsparams.builder.md)
  * [PurchaseClient](/dev/cht/tools/billing/v21/references/classes/purchaseclient.md)
  * [PurchaseClient.Builder](/dev/cht/tools/billing/v21/references/classes/purchaseclient.builder.md)
  * [PurchaseData](/dev/cht/tools/billing/v21/references/classes/purchasedata.md)
  * [PurchaseFlowParams](/dev/cht/tools/billing/v21/references/classes/purchaseflowparams.md)
  * [PurchaseFlowParams.Builder](/dev/cht/tools/billing/v21/references/classes/purchaseflowparams.builder.md)
  * [RecurringProductParams](/dev/cht/tools/billing/v21/references/classes/recurringproductparams.md)
  * [RecurringProductParams.Builder](/dev/cht/tools/billing/v21/references/classes/recurringproductparams.builder.md)
  * [SubscriptionParams](/dev/cht/tools/billing/v21/references/classes/subscriptionparams.md)
  * [SubscriptionParams.Builder](/dev/cht/tools/billing/v21/references/classes/subscriptionparams.builder.md)
  * [SubscriptionUpdateParams](/dev/cht/tools/billing/v21/references/classes/subscriptionupdateparams.md)
  * [SubscriptionUpdateParams.Builder](/dev/cht/tools/billing/v21/references/classes/subscriptionupdateparams.builder.md)
* [Interfaces](/dev/cht/tools/billing/v21/references/interfaces.md)
  * [AcknowledgeListener](/dev/cht/tools/billing/v21/references/interfaces/acknowledgelistener.md)
  * [ConsumeListener](/dev/cht/tools/billing/v21/references/interfaces/consumelistener.md)
  * [IapResultListener](/dev/cht/tools/billing/v21/references/interfaces/iapresultlistener.md)
  * [ProductDetailsListener](/dev/cht/tools/billing/v21/references/interfaces/productdetailslistener.md)
  * [PurchaseClientStateListener](/dev/cht/tools/billing/v21/references/interfaces/purchaseclientstatelistener.md)
  * [PurchasesListener (deprecated)](/dev/cht/tools/billing/v21/references/interfaces/purchaseslistener-deprecated.md)
  * [PurchasesUpdatedListener](/dev/cht/tools/billing/v21/references/interfaces/purchasesupdatedlistener.md)
  * [QueryPurchasesListener](/dev/cht/tools/billing/v21/references/interfaces/querypurchaseslistener.md)
  * [RecurringProductListener](/dev/cht/tools/billing/v21/references/interfaces/recurringproductlistener.md)
  * [StoreInfoListener](/dev/cht/tools/billing/v21/references/interfaces/storeinfolistener.md)