veJOE for Developers

Boosted APRs
With the introduction of Boosted MasterChef Joe (BMCJ), users now see different Boosted APRs depending on their veJOE balance. 
A users total farm APR now consist of 2 components: 
Base APR
Share of emissions that is not adjusted by veJOE: total farm APR * (1 - veJoeShare)
Boost APR
Determined by the user factor user.liquidity∗user.veJoepool.totalFactor\frac{\sqrt{user.liquidity * user.veJoe} }{pool.totalFactor}pool.totalFactoruser.liquidity∗user.veJoe​​
 where pool.totalFactor is the sum of all user factor in the farm. 
​
FarmLensV2
To help with the calculation of Boost APR, developers can try our FarmLensV2: 
​https://snowtrace.io/address/0xF16d25Eba0D8E51cEAF480141bAf577aE55bfdd2​
Example
// ethers.Contract 
const farmLensContract = useFarmLensV2Contract()
​
// poolIds is an array e.g. [0,1,3,6]
const response = await farmLensContract?.getBMCJFarmInfos(
 masterchefAddress,
 account,
 poolIds
)
​
// APRs returned in 18 decimal
const baseAPR = response.baseAPR
const boostedAPR = response.boostedAPR
Reference
​Joe Staking V2​

Fuji Test-net

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Boosted APRs

FarmLensV2

Reference