---
title: IAssetManagerEvents
description: FAssets IAssetManager interface reference.
keywords: [fassets, xrp, bitcoin, dogecoin, flare-network]
sidebar_position: 3
---

`IAssetManagerEvents` is an interface that defines the events emitted by the [`IAssetManager`](/fassets/reference/IAssetManager) contract.

Sourced from `IAssetManagerEvents.sol` on [GitHub](https://github.com/flare-foundation/fassets/blob/main/contracts/userInterfaces/IAssetManagerEvents.sol).ā

## Event Categories

The events are organized into the following categories:

- **[Minting Events](#minting-events)** - Events related to the FAssets minting process.
- **[Redemption Events](#redemption-events)** - All events related to the FAssets redemption process, including requests, tickets, outcomes, and failures.

## Minting Events

Events related to the FAssets minting process, including collateral reservation, execution, and defaults.

### `CollateralReserved`

Emitted when a minter has reserved collateral, paid the reservation fee, and is expected to pay the underlying funds.
The agent's collateral is reserved at this point.

Parameters:

- `agentVault`: Address of the agent vault
- `minter`: Address of the minter
- `collateralReservationId`: ID of the collateral reservation
- `valueUBA`: Value in the underlying base amount
- `feeUBA`: Fee in the underlying base amount
- `firstUnderlyingBlock`: First block number on the underlying chain
- `lastUnderlyingBlock`: Last block number on the underlying chain
- `lastUnderlyingTimestamp`: Last timestamp on the underlying chain
- `paymentAddress`: Address for payment
- `paymentReference`: Reference for payment
- `executor`: Address of the executor
- `executorFeeNatWei`: Fee for the executor in NAT wei

```solidity
event CollateralReserved(
    address indexed agentVault,
    address indexed minter,
    uint256 indexed collateralReservationId,
    uint256 valueUBA,
    uint256 feeUBA,
    uint256 firstUnderlyingBlock,
    uint256 lastUnderlyingBlock,
    uint256 lastUnderlyingTimestamp,
    string paymentAddress,
    bytes32 paymentReference,
    address executor,
    uint256 executorFeeNatWei
);
```

### `CollateralReservationRejected`

Emitted when an agent rejects the collateral reservation request due to the minter's identity.
The reserved collateral is released.

Parameters:

- `agentVault`: Address of the agent vault
- `minter`: Address of the minter
- `collateralReservationId`: ID of the collateral reservation

```solidity
event CollateralReservationRejected(
    address indexed agentVault,
    address indexed minter,
    uint256 indexed collateralReservationId
);
```

### `CollateralReservationCancelled`

Emitted when a minter cancels the collateral reservation request due to agent inactivity.
The reserved collateral is released.

Parameters:

- `agentVault`: Address of the agent vault
- `minter`: Address of the minter
- `collateralReservationId`: ID of the collateral reservation

```solidity
event CollateralReservationCancelled(
    address indexed agentVault,
    address indexed minter,
    uint256 indexed collateralReservationId
);
```

### `MintingExecuted`

Emitted when a minter has successfully paid the underlying funds in time and received the FAssets.
The agent's collateral is locked at this point.

Parameters:

- `agentVault`: Address of the agent vault
- `collateralReservationId`: ID of the collateral reservation
- `mintedAmountUBA`: Amount of FAssets minted in the underlying base amount
- `agentFeeUBA`: Fee paid to the agent in the underlying base amount
- `poolFeeUBA`: Fee paid to the pool in the underlying base amount

```solidity
event MintingExecuted(
    address indexed agentVault,
    uint256 indexed collateralReservationId,
    uint256 mintedAmountUBA,
    uint256 agentFeeUBA,
    uint256 poolFeeUBA
);
```

### `MintingPaymentDefault`

Emitted when a minter fails to pay the underlying funds in time.
The collateral reservation fee is paid to the agent, and the reserved collateral is released.

Parameters:

- `agentVault`: Address of the agent vault
- `minter`: Address of the minter
- `collateralReservationId`: ID of the collateral reservation
- `reservedAmountUBA`: Amount that was reserved in the underlying base amount

```solidity
event MintingPaymentDefault(
    address indexed agentVault,
    address indexed minter,
    uint256 indexed collateralReservationId,
    uint256 reservedAmountUBA
);
```

### `CollateralReservationDeleted`

Emitted when both the minter and agent fail to present any proof within the attestation time window, and the agent calls `unstickMinting` to release the reserved collateral.

Parameters:

- `agentVault`: Address of the agent vault
- `minter`: Address of the minter
- `collateralReservationId`: ID of the collateral reservation
- `reservedAmountUBA`: Amount that was reserved in the underlying base amount

```solidity
event CollateralReservationDeleted(
    address indexed agentVault,
    address indexed minter,
    uint256 indexed collateralReservationId,
    uint256 reservedAmountUBA
);
```

## Redemption Events

All events related to the FAssets redemption process, including redemption requests, ticket management, successful redemptions, failures, defaults, and fee distributions.

### `RedemptionRequested`

An event is emitted when the redeemer starts the redemption process.

Parameters:

- `agentVault`: Address of the agent vault.
- `redeemer`: Address of the redeemer.
- `requestId`: Unique identifier for the redemption request.
- `paymentAddress`: Address to which the agent must transfer the redeemed amount on the underlying chain.
- `valueUBA`: Amount of FAssets to redeem.
- `feeUBA`: Fee for the redemption.
- `firstUnderlyingBlock`: First underlying block to submit payment.
- `lastUnderlyingBlock`: Last underlying block to submit payment.
- `lastUnderlyingTimestamp`: Deadline on the underlying chain for submitting the redemption payment.
- `paymentReference`: Reference for payment that will be used to track the redemption payment.
- `executor`: Address of the executor that is allowed to execute the redemption default.
- `executorFeeNatWei`: Fee for the executor in NAT wei.

```solidity
event RedemptionRequested(
    address indexed agentVault,
    address indexed redeemer,
    uint256 indexed requestId,
    string paymentAddress,
    uint256 valueUBA,
    uint256 feeUBA,
    uint256 firstUnderlyingBlock,
    uint256 lastUnderlyingBlock,
    uint256 lastUnderlyingTimestamp,
    bytes32 paymentReference,
    address executor,
    uint256 executorFeeNatWei);
```

### `RedemptionTicketCreated`

This event is emitted when a redemption ticket is created, when a minting transaction is executed.

Parameters:

```solidity
event RedemptionTicketCreated(
    address indexed agentVault,
    uint256 indexed redemptionTicketId,
    uint256 ticketValueUBA);
```

### `RedemptionTicketUpdated`

Event emitted when a redemption ticket value is changed (partially redeemed).

Parameters:

- `agentVault`: The address of the agent vault that will redeem the FAssets.
- `redemptionTicketId`: The ID of the redemption ticket.
- `ticketValueUBA`: The value of the redemption ticket in the underlying chain currency.

```solidity
event RedemptionTicketUpdated(
    address indexed agentVault,
    uint256 indexed redemptionTicketId,
    uint256 ticketValueUBA);
```

### `RedemptionPerformed`

The event is emitted when the agent provides proof of redemption payment, and the agent's collateral is released.

```solidity
event RedemptionPerformed(
    address indexed agentVault,
    address indexed redeemer,
    uint64 indexed requestId,
    bytes32 transactionHash,
    uint256 redemptionAmountUBA,
    int256 spentUnderlyingUBA);
```

### `RedemptionRejected`

Emitted when an agent rejects a redemption request due to an invalid redeemer address.

Parameters:

- `agentVault`: Address of the agent vault that rejected the redemption.
- `redeemer`: Address of the user attempting to redeem (invalid address).
- `requestId`: Unique identifier for the redemption request.
- `redemptionAmountUBA`: Amount of FAssets that were requested for redemption.

```solidity
event RedemptionRejected(
    address indexed agentVault,
    address indexed redeemer,
    uint256 indexed requestId,
    uint256 redemptionAmountUBA
);
```

### `RedemptionRequestIncomplete`

Emitted when a redemption request cannot be fully processed due to insufficient tickets or exceeding allowed redemption limits.

Parameters:

- `redeemer`: Address of the user who requested the redemption.
- `remainingLots`: Number of FAsset lots that could not be redeemed and are returned to the redeemer.

```solidity
event RedemptionRequestIncomplete(
    address indexed redeemer,
    uint256 remainingLots
);
```

### `RedemptionDefault`

Emitted when a redemption payment times out and the redeemer is compensated with collateral instead.

Parameters:

- `agentVault`: Address of the agent vault that failed to complete the payment.
- `redeemer`: Address of the user who requested the redemption.
- `requestId`: Unique identifier for the redemption request.
- `redemptionAmountUBA`: Amount of FAssets that were requested for redemption.
- `redeemedVaultCollateralWei`: Amount of collateral paid from the agent's vault.
- `redeemedPoolCollateralWei`: Amount of collateral paid from the collateral pool.

```solidity
event RedemptionDefault(
    address indexed agentVault,
    address indexed redeemer,
    uint256 indexed requestId,
    uint256 redemptionAmountUBA,
    uint256 redeemedVaultCollateralWei,
    uint256 redeemedPoolCollateralWei
);
```

### `RedemptionPaymentBlocked`

Emitted when a redemption payment fails due to the redeemer's address being blocked or gas limit issues.

Parameters:

- `agentVault`: Address of the agent vault that attempted the payment.
- `redeemer`: Address of the user who requested the redemption.
- `requestId`: Unique identifier for the redemption request.
- `transactionHash`: Hash of the failed transaction on the underlying chain.
- `redemptionAmountUBA`: Amount of FAssets that were requested for redemption.
- `spentUnderlyingUBA`: Amount of underlying currency spent in the failed attempt (negative value).

```solidity
event RedemptionPaymentBlocked(
    address indexed agentVault,
    address indexed redeemer,
    uint256 indexed requestId,
    bytes32 transactionHash,
    uint256 redemptionAmountUBA,
    int256 spentUnderlyingUBA
);
```

### `RedemptionPaymentFailed`

Emitted when a redemption payment fails due to the agent's own error.

Parameters:

- `agentVault`: Address of the agent vault that failed the payment.
- `redeemer`: Address of the user who requested the redemption.
- `requestId`: Unique identifier for the redemption request.
- `transactionHash`: Hash of the failed transaction on the underlying chain.
- `spentUnderlyingUBA`: Amount of underlying currency spent in the failed attempt (negative value).
- `failureReason`: Human-readable description of why the payment failed.

```solidity
event RedemptionPaymentFailed(
    address indexed agentVault,
    address indexed redeemer,
    uint256 indexed requestId,
    bytes32 transactionHash,
    int256 spentUnderlyingUBA,
    string failureReason
);
```

### `RedemptionPoolFeeMinted`

Emitted when part of the redemption fee is re-minted as FAssets and paid to the agent's collateral pool.

Parameters:

- `agentVault`: Address of the agent vault that completed the redemption.
- `requestId`: Unique identifier for the redemption request.
- `poolFeeUBA`: Amount of FAssets re-minted and paid as a fee to the collateral pool.

```solidity
event RedemptionPoolFeeMinted(
    address indexed agentVault,
    uint256 indexed requestId,
    uint256 poolFeeUBA
);
```

### `RedeemedInCollateral`

Emitted when FAssets are redeemed in collateral during a self-close exit process.

Parameters:

- `agentVault`: Address of the agent vault that processed the redemption.
- `redeemer`: Address of the user who requested the redemption.
- `redemptionAmountUBA`: Amount of FAssets that were redeemed.
- `paidVaultCollateralWei`: Amount of collateral paid from the agent's vault.

```solidity
event RedeemedInCollateral(
    address indexed agentVault,
    address indexed redeemer,
    uint256 redemptionAmountUBA,
    uint256 paidVaultCollateralWei
);
```