Urbit repeating id parts finder

urbit.ts

type Star = {
  point: number
  patp: string // '~havrun-hasnum'
  is_listed: boolean
  ship_type: string // 'planet'
  unbooted: boolean
  time_listed: string
  time_added: string
  price_int: number
  child_points: number
  unspawned: boolean
  currency: string // "ETH"
  price_usd: null
  price_eth: number
  urbitex_contract: null
  removed_by_exchange: null
}

const params = new URLSearchParams({
  type: 'planet',
  price_min: '0',
  price_max: '10000000', // 0.01 ETH
  unbooted: '1',
  sort_order: '-point',
  unspawned: '1',
})

const req = await fetch(
  'https://urbitex.io:8000/get_listed_ships?' + params.toString()
)

const res = await req.json()

for (const x of res.data as Star[]) {
  const halves = x.patp.replace('~', '').split('-')
  const parts = halves.flatMap((x) => x.match(/.{1,3}/g)!)

  if (parts[0] === parts[2] || parts[1] === parts[3]) {
    console.log(
      `https://urbitex.io/ship/~${parts[0] + parts[1]}-${parts[2] + parts[3]}`
    )
  }
}