Algorand Smart Contracts have the ability to send transactions from the application's contract address. Transactions sent from a contract address via an application call is called an inner transaction.
To send a single inner transaction, one of the following methods can be used.
| Function | Usage |
|---|---|
| sendPayment | Send a payment transaction |
| sendAssetTransfer | Send an asset transfer transaction |
| sendAssetCreation | Send a transcation that creates a transcation |
| sendAssetConfig | Send an asset config transaction |
| sendAssetFreeze | Send an asset freeze transaction |
| sendAppCall | Send an application call |
| sendMethodCall | Call an ABI method of another app |
| sendOnlineKeyRegistration | Send a rekreg transaction to register offline |
| sendOfflineKeyRegistration | Send a rekreg transaction to register offline |
You can also send multiple inner transactions in the same group. To add transactions to a group, this.pendingGroup is used. It should be noted that at any given time only one group can be constructed at a time. This means
| Function | Usage |
|---|---|
| this.pendingGroup.addPayment | Add a payment transaction |
| this.pendingGroup.addAssetTransfer | Add an asset transfer transaction |
| this.pendingGroup.addAssetCreation | Add a transcation that creates a transcation |
| this.pendingGroup.addAssetConfig | Add an asset config transaction |
| this.pendingGroup.addAssetFreeze | Add an asset freeze transaction |
| this.pendingGroup.addAppCall | Add an application call |
| this.pendingGroup.addMethodCall | Add an ABI method call to another app |
| this.pendingGroup.addOnlineKeyRegistration | Add a rekreg transaction to register offline |
| this.pendingGroup.addOfflineKeyRegistration | Add a rekreg transaction to register offline |
Once transactions have been added to the pending group, the group can be submitted via this.pendingGroup.submit()
The fields of the most recent inner transaction can be read via this.itxn
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