The common interface all pricing programs must follow.
Given an input LST amount and its SOL value, calculate the output SOL value.
| Name | Value | Type |
|---|---|---|
| discriminant | 0 | u8 |
| amount | amount of input LST | u64 |
| sol_value | SOL value of amount input LST | u64 |
| Account | Description | Read/Write (R/W) | Signer (Y/N) |
|---|---|---|---|
| input_lst_mint | Mint of the input LST | R | N |
| output_lst_mint | Mint of the output LST | R | N |
| remaining_accounts | Any remaining accounts the program needs. Varies with each pricing program. | ... | ... |
| Name | Value | Type |
|---|---|---|
| result | the calculated output SOL value | u64 |
Given an output LST amount and its SOL value, calculate the input SOL value.
| Name | Value | Type |
|---|---|---|
| discriminant | 1 | u8 |
| amount | amount of output LST | u64 |
| sol_value | SOL value of amount output LST | u64 |
| Account | Description | Read/Write (R/W) | Signer (Y/N) |
|---|---|---|---|
| input_lst_mint | Mint of the input LST | R | N |
| output_lst_mint | Mint of the output LST | R | N |
| remaining_accounts | Any remaining accounts the program needs. Varies with each pricing program. | ... | ... |
| Name | Value | Type |
|---|---|---|
| result | the calculated input SOL value | u64 |
Given an input LST amount and its SOL value, calculate the SOL value of the LP tokens to mint.
| Name | Value | Type |
|---|---|---|
| discriminant | 1 | u8 |
| amount | amount of input LST | u64 |
| sol_value | SOL value of amount input LST | u64 |
| Name | Value | Type |
|---|---|---|
| result | the calculated SOL value of the LP tokens to mint | u64 |
| Account | Description | Read/Write (R/W) | Signer (Y/N) |
|---|---|---|---|
| input_lst_mint | Mint of the input LST | R | N |
| remaining_accounts | Any remaining accounts the program needs. Varies with each pricing program. | ... | ... |
Given an input LP token amount and its SOL value, calculate the SOL value of the LST to redeem.
| Name | Value | Type |
|---|---|---|
| discriminant | 1 | u8 |
| amount | amount of the input LP | u64 |
| sol_value | SOL value of amount input LP | u64 |
| Name | Value | Type |
|---|---|---|
| result | the calculated SOL value of the LST to redeem | u64 |
| Account | Description | Read/Write (R/W) | Signer (Y/N) |
|---|---|---|---|
| output_lst_mint | Mint of the output LST | R | N |
| remaining_accounts | Any remaining accounts the program needs. Varies with each pricing program. | ... | ... |
Regardless of how the price is calculated, the pricing program should guarantee that this instruction levies sufficient fees on the redeem amount such that LPs cannot extract value from the pool by adding liquidity right before the epoch boundary and then removing liquidity right after the SOL value increase from staking rewards.
Each pricing program may also have different instructions for state management and control.