divest_liquidity

An entrypoint for liquidity divestment from the specific liquidity pool (pair). Also it votes for the users' bakers in case of liquidity divestment from TOK/TEZ pools.

Call parameters

type token_id_t         is nat

type divest_liquidity_t is [@layout:comb] record [
  pair_id                 : token_id_t;
  min_token_a_out         : nat;
  min_token_b_out         : nat;
  shares                  : nat;
  liquidity_receiver      : address;
  candidate               : key_hash;
  deadline                : timestamp;
]

Field	Type	Description
pair_id	token_id_t (nat)	Identifier of the liquidity pool (pair)
min_token_a_out	nat	The minimum number of token A that the user agrees to
min_token_b_out	nat	The minimum number of token B that the user agrees to
shares	nat	Amount of LP tokens to use in time of divestment
liquidity_receiver	address	Receiver of tokens A and tokens B
candidate	key_hash	Baker for voting (is used only in time of divestment from TOK/TEZ exchanges)
deadline	timestamp	The time until which the transaction remains valid and will not be rejected

Usage

🌮 Taquito

const dexCoreAddress = "KT1...";
const parmas = {
    pair_id: 0,
    min_token_a_out: 100,
    min_token_b_out: 100,
    shares: 100,
    liquidity_receiver: "tz1.../KT1...",
    candidate: "tz1...",
    deadline: String(Date.parse((await tezos.rpc.getBlockHeader()).timestamp) / 1000 + 100),
};
const dexCore = await tezos.contract.at(dexCoreAddress);
const operation = await dexCore.methodsObject.divest_liquidity(parmas).send();

await operation.confirmation();

Errors

• 108 - pair (pool) with the specified token_id not listed.

• 109 - pair doesn't have a liquidity.

• 114 - insufficient liquidity.

• 115 - dust output (zero tokens amount expected).

• 116 - high expectations of output tokens.

• 136 - reentrancy.

• 142 - wrong reserves state after execution of the operation.

• 144 - action outdated (the time until which the transaction remained valid was passed).

• 412 - non payable entrypoint (can't accept TEZ tokens during call of an entrypoint).