> 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/tools/billing/v21/references.md).

# 05. 원스토어 인앱결제 레퍼런스

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