Uniswap V3

tags: Uniswap Tick To Price, Uniswap V3 import math tick_upper_bits = 4294945516 tick_lower_bits = 4294931656 tick_curre_bits = 4294938547 sqrtp_low = price_to_sqrtp(uint32_tick_to_price(tick_lower_bits)) sqrtp_cur = price_to_sqrtp(uint32_tick_to_price(tick_curre_bits)) sqrtp_upp = price_to_sqrtp(uint32_tick_to_price(tick_upper_bits)) def calc_amount0(liq, pa, pb): if pa > pb: pa, pb = pb, pa return int(liq * q96 * (pb - pa) / pa / pb) def calc_amount1(liq, pa, pb): if pa > pb: pa, pb = pb, pa return int(liq * (pb - pa) / q96) liq = 8599967722 amount0 = calc_amount0(liq, sqrtp_upp, sqrtp_cur) amount1 = calc_amount1(liq, sqrtp_low, sqrtp_cur)

tags: Uniswap V3 def tick_to_price(tick: int) -> float: return 1.0001 ** tick def uint32_tick_to_price(bits: int) -> float: # https://stackoverflow.com/a/20766900 u = bits & ((1 << 32) - 1) tick = (u & ((1 << 31) - 1)) - (u & (1 << 31)) return 1.0001 ** tick q96 = 2**96 def price_to_sqrtp(p): return int(math.sqrt(p) * q96)

tags: Uniswap V3, Ethereum POST https://rpc.ankr.com/eth Content-Type: application/json { "jsonrpc": "2.0", "id": 1, "method": "eth_getTransactionReceipt", "params": ["0xeedf302cc12f4b7194742694aabec075c1c229f7b9d8e57a53c44c992bc6690c"] }

tags: DeFi, Blockchain, Uniswap, Uniswap V3 I need derive price from decentralized exchanges, and I have finished some research about Uniswap v3. It’s brand new for me, and after that I want to share some ideas about DeFi, and I think it would be helpful for you to understand Uniswap and some other decentralized exchanges. DeFi from Scratch We exchange stuffs very often, and we can exchange tokens in a centralized exchange....

tags: Uniswap V3 source: Shao, 田少谷. “Uniswap v3 Features Explained in Depth.” Taipei Ethereum Meetup (blog), July 20, 2021. https://medium.com/taipei-ethereum-meetup/uniswap-v3-features-explained-in-depth-178cfe45f223. Tick is a price range Each tick is a price range with upper bound and lower bound. Tick price from index: \(p(i) = 1.0001 ^ i\) 1.0001 ** 138162 # 999_998 Tick index from price: \(log_{1.0001}p\) import math math.log(1000_000, base=1.0001) # 138162.01321981344