0g-chain/x/incentive/spec/03_messages.md

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order: 3
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# Messages

Users claim rewards using messages that correspond to each claim type.

```go
// MsgClaimUSDXMintingReward message type used to claim USDX minting rewards
type MsgClaimUSDXMintingReward struct {
	Sender         sdk.AccAddress `json:"sender" yaml:"sender"`
	MultiplierName string         `json:"multiplier_name" yaml:"multiplier_name"`
}

// MsgClaimHardReward message type used to claim Hard liquidity provider rewards
type MsgClaimHardReward struct {
	Sender         sdk.AccAddress `json:"sender" yaml:"sender"`
	MultiplierName string         `json:"multiplier_name" yaml:"multiplier_name"`
	DenomsToClaim  []string       `json:"denoms_to_claim" yaml:"denoms_to_claim"`
}

// MsgClaimDelegatorReward message type used to claim delegator rewards
type MsgClaimDelegatorReward struct {
	Sender         sdk.AccAddress `json:"sender" yaml:"sender"`
	MultiplierName string         `json:"multiplier_name" yaml:"multiplier_name"`
	DenomsToClaim  []string       `json:"denoms_to_claim" yaml:"denoms_to_claim"`
}

// MsgClaimSwapReward message type used to claim delegator rewards
type MsgClaimSwapReward struct {
	Sender         sdk.AccAddress `json:"sender" yaml:"sender"`
	MultiplierName string         `json:"multiplier_name" yaml:"multiplier_name"`
	DenomsToClaim  []string       `json:"denoms_to_claim" yaml:"denoms_to_claim"`
}
```

## State Modifications

- Accumulated rewards for active claims are transferred from the `kavadist` module account to the users account as vesting coins
- The number of coins transferred is determined by the multiplier in the message. For example, the multiplier equals 1.0, 100% of the claim's reward value is transferred. If the multiplier equals 0.5, 50% of the claim's reward value is transferred.
- The corresponding claim object is reset to zero in the store