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router package

Overview

Package router provides swap routing and execution across GnoSwap liquidity pools.

Router domain proxy for single-hop and multi-hop exact-in, exact-out, and dry-route operations.

Live exact-in and exact-out calls validate a deadline and the corresponding amount limit (minimum output or maximum input). DrySwapRoute is a read-only quote path with no deadline or token transfer.

The router fee is charged on output tokens. It defaults to 15 bps (0.15%) and is configurable by admin/governance from 0 through 1000 bps (0–10%); the current rate is fixed for each individual execution.

The router acts as a proxy to version-specific implementations, currently routing to v1 for all swap operations.

Function

SwapCallback

func SwapCallback(cur realm, token0Path string, token1Path string, amount0Delta int64, amount1Delta int64, payer address) error

SwapCallback transfers amounts owed by a pool during a swap.

Parameters:

  • cur: current realm context; callers use cross(cur) when crossing into this realm
  • token0Path: token0 path
  • token1Path: token1 path
  • amount0Delta: token0 amount owed to or by the pool
  • amount1Delta: token1 amount owed to or by the pool
  • payer: address that supplies positive deltas

Returns:

  • err: non-nil when payment validation or transfer fails

Halt check: reverts while the Router halt scope is active.

Params

Command

# WARNING: This command is running in an INSECURE mode.
# It is strongly recommended to use a hardware device for signing
# and avoid trusting any computer connected to the internet,
# as your private keys could be exposed.

gnokey maketx call -pkgpath "gno.land/r/gnoswap/router" -func "SwapCallback" -args $'' -args $'' -args $'' -args $'' -args $'' -gas-fee 1000000ugnot -gas-wanted 1_000_000_000 -send "" -chainid "gnoland-1" -remote "http://127.0.0.1:26657" ADDRESSgnokey query -remote "http://127.0.0.1:26657" auth/accounts/ADDRESS
gnokey maketx call -pkgpath "gno.land/r/gnoswap/router" -func "SwapCallback" -args $'' -args $'' -args $'' -args $'' -args $'' -gas-fee 1000000ugnot -gas-wanted 1_000_000_000 -send "" -broadcast=false ADDRESS > call.tx
gnokey sign -tx-path call.tx -chainid "gnoland-1" -account-number ACCOUNTNUMBER -account-sequence SEQUENCENUMBER ADDRESS
gnokey broadcast -remote "http://127.0.0.1:26657" call.tx