DEX DB  

Database for decentralize exchangers.
Low level data base based on Radix-tree (same way as SQL).
Each address (pair or token) presented as an integer number after indexing.
Then factory information can be presented as: [[token0, token1], ...]
Example:
[[0, 4], [0, 1], [5, 3], ...]
where:

• [0, 4]
  • is first element at array at index 0 (pair index 0)
  • 0 index of token0 of pair 0
  • 4 index of token1 of pair 0
• [0, 1]
  • is second element at array at index 1 (pair index 1)
  • 0 index of token0 of pair 1 (same token can be at different pairs)
  • 1 index of token1 of pair 1
• [5, 3]
  • is third element at array at index 2 (pair index 2)
  • 5 index of token0 of pair 2
  • 4 index of token1 of pair 2

Install

npm i --save dex-db

Use

import dex_db from 'dex-db'

const db = dex_db(
    [
        ['0xb4e16d0168e52d35cacd2c6185b44281ec28c9dc', '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48', '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2'],
        ['0x12ede161c702d1494612d19f05992f43aa6a26fb', '0x06af07097c9eeb7fd685c692751d5c66db49c215', '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2'],
        ['0xa478c2975ab1ea89e8196811f51a7b7ade33eb11', '0x6b175474e89094c44da98b954eedeac495271d0f', '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2'],
        ['0x07f068ca326a469fc1d87d85d448990c8cba7df9', '0x408e41876cccdc0f92210600ef50372656052a38', '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48'],
        ['0xae461ca67b15dc8dc81ce7615e0320da1a9ab8d5', '0x6b175474e89094c44da98b954eedeac495271d0f', '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48'],
        ['0xce407cd7b95b39d3b4d53065e711e713dd5c5999', '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2', '0xfa3e941d1f6b7b10ed84a0c211bfa8aee907965e']
    ]
)

const pairs = dex_db.find_pairs_with_token('0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48'/*USDC*/)

//pairs[0] == '0xb4e16d0168e52d35cacd2c6185b44281ec28c9dc'/*WETH/USDC*/)
//pairs[1] == '0x07f068ca326a469fc1d87d85d448990c8cba7df9'/*REN/USDC*/)
//pairs[2] == '0xae461ca67b15dc8dc81ce7615e0320da1a9ab8d5'/*DAI/USDC*/)