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feat: use on chain staking params for locked token APR multiplier #61

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Merged
0xHansLee merged 1 commit into from
Feb 9, 2026
Merged

feat: use on chain staking params for locked token APR multiplier #61

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59 changes: 55 additions & 4 deletions pkg/server/handler.go
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Original file line number Diff line number Diff line change
Expand Up @@ -470,6 +470,33 @@ func (s *Server) StakingValidatorsHandler() gin.HandlerFunc {
return
}

// Get staking params for locked token type multiplier
stakingParamsResp, err := GetStakingParams(s.conf.Blockchain.StoryAPIEndpoint)
if err != nil {
logger.Error().Err(err).Msg("failed to get staking params")
c.JSON(http.StatusOK, Response{
Code: http.StatusInternalServerError,
Error: ErrInternalAPIServiceError.Error(),
})
return
}

var lockedTokenMultiplier decimal.Decimal
for _, tt := range stakingParamsResp.Msg.Params.TokenTypes {
if tt.TokenType == TokenTypeLocked {
lockedTokenMultiplier, err = decimal.NewFromString(tt.RewardsMultiplier)
if err != nil {
logger.Error().Err(err).Msg("failed to parse locked token type multiplier")
c.JSON(http.StatusOK, Response{
Code: http.StatusInternalServerError,
Error: ErrInternalAPIServiceError.Error(),
})
return
}
break
}
}

// Query from API and database
stakingValidatorsResp, err := GetStakingValidators(s.conf.Blockchain.StoryAPIEndpoint, params)
if err != nil {
Expand Down Expand Up @@ -517,9 +544,9 @@ func (s *Server) StakingValidatorsHandler() gin.HandlerFunc {
}

valAPR := sysAPR.Mul(decimal.NewFromInt(1).Sub(commissionRate))
// Locked token type has 0.5x APR
// Apply locked token type multiplier from staking params
if val.SupportTokenType == 0 {
valAPR = valAPR.Div(decimal.NewFromInt(2))
valAPR = valAPR.Mul(lockedTokenMultiplier)
}

validators = append(validators, StakingValidatorData{
Expand Down Expand Up @@ -609,9 +636,33 @@ func (s *Server) StakingValidatorHandler() gin.HandlerFunc {
}

valAPR := sysAPR.Mul(decimal.NewFromInt(1).Sub(commissionRate))
// Locked token type has 0.5x APR
// Apply locked token type multiplier from staking params
if val.SupportTokenType == 0 {
valAPR = valAPR.Div(decimal.NewFromInt(2))
stakingParamsResp, err := GetStakingParams(s.conf.Blockchain.StoryAPIEndpoint)
if err != nil {
logger.Error().Err(err).Msg("failed to get staking params")
c.JSON(http.StatusOK, Response{
Code: http.StatusInternalServerError,
Error: ErrInternalAPIServiceError.Error(),
})
return
}

for _, tt := range stakingParamsResp.Msg.Params.TokenTypes {
if tt.TokenType == TokenTypeLocked {
lockedTokenMultiplier, err := decimal.NewFromString(tt.RewardsMultiplier)
if err != nil {
logger.Error().Err(err).Msg("failed to parse locked token type multiplier")
c.JSON(http.StatusOK, Response{
Code: http.StatusInternalServerError,
Error: ErrInternalAPIServiceError.Error(),
})
return
}
valAPR = valAPR.Mul(lockedTokenMultiplier)
break
}
}
}

msg := StakingValidatorData{
Expand Down
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