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Burn
Burn Pool liquidity assets in exchange for removing assets from the Pool.

Transaction Group

0. Pay - pay fees in Algo from Pooler to Pool
  • fees to cover Tx 1,2,3
  • Signed by Pooler
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{
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"txn": {
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"type": "pay",
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"rcv": "{POOL_ADDRESS}",
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"snd": "{POOLER_ADDRESS",
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"amt": 3000,
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"fee": 1000,
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...
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},
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"sig": "{POOLER_SIG}",
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}
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  1. 1.
    App Call - NoOp call to Validator App with args ['burn'], with Pooler account
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{
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"txn": {
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"type": "appl",
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"snd": "{POOL_ADDRESS}",
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"apid": {VALIDATOR_APP_ID},
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"apan": 0, // OnComplete: NoOp
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"apaa": ['YnVybg=='], // ['burn']
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"apat": [{POOLER_ADDRESS}],
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"fee": 1000,
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...
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},
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"lsig": "{POOL_LOGICSIG}",
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}
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2. AssetTransfer - Transfer of asset 1 from Pool to Pooler
  • Signed by Pool LogicSig
  • Amount is minimum expected amount allowing for slippage
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{
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"txn": {
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"type": "axfer",
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"arcv": "{POOLER_ADDRESS}",
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"snd": "{POOL_ADDRESS}",
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"xaid": {ASSET_1_ID},
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"aamt": {ASSET_1_AMOUNT},
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"fee": 1000,
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...
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},
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"lsig": "{POOL_LOGICSIG}",
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}
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3. (a) AssetTransfer - Transfer of asset 2 from Pool to Pooler
  • If asset 2 is an ASA
  • Signed by Pool LogicSig
  • Amount is minimum expected amount allowing for slippage
1
{
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"txn": {
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"type": "axfer",
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"arcv": "{POOLER_ADDRESS}",
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"snd": "{POOL_ADDRESS}",
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"xaid": {ASSET_2_ID},
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"aamt": {ASSET_2_AMOUNT},
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"fee": 1000,
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...
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},
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"lsig": "{POOL_LOGICSIG}",
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}
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3. (b) Pay - Transfer of Algo from Pool to Pooler
  • If asset 2 is Algo
  • Signed by Pool LogicSig
  • Amount is minimum expected amount allowing for slippage
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{
2
"txn": {
3
"type": "pay",
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"rcv": "{POOLER_ADDRESS}",
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"snd": "{POOL_ADDRESS"},
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"amt": {ASSET_2_AMOUNT},
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"fee": 1000,
8
...
9
},
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"lsig": "{POOL_LOGICSIG}",
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}
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4. AssetTransfer - Transfer of liquidity token asset from Pooler to Pool
  • Signed by Pooler
1
{
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"txn": {
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"type": "axfer",
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"arcv": "{POOL_ADDRESS}",
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"snd": "{POOLER_ADDRESS}",
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"xaid": {LIQUIDITY_ASSET_ID},
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"aamt": {LIQUIDITY_ASSET_AMOUNT},
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"fee": 1000,
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...
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},
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"sig": "{POOLER_SIG}",
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}
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Validator App State Changes

Global State
None
Pool Account Local State
  • o{LIQUIDITY_ASSET_ID}: {int} // total outstanding unredeemed liquidity asset amount
  • o{ASSET1_ID}: {int} // total outstanding unredeemed asset 1 amount
  • o{ASSET2_ID}: {int} // total outstanding unredeemed asset 2 amount
Pooler Account Local State
  • {POOL_ADDRESS}e{LIQUIDITY_ASSET_ID}: {int} // excess liquidity asset amount available for redemption
  • {POOL_ADDRESS}e{ASSET1_ID}: {int} // excess asset 1 amount available for redemption
  • {POOL_ADDRESS}e{ASSET2_ID}: {int} // excess asset 2 amount available for redemption
Last modified 10mo ago