Attempting to compose a SWAP using Turing's automationTime pallet.

[decentration]

I have attempted to compose a tx that that dispatches an xcm task at a later time, which executes a swap call on the mangata chain.

Because there is no prior example of a swap tx executed with automationTime pallet i am finding it difficult to compose the correct call.

For fast checking here is the decoded call data:

0x3c01000410f10f67000000000301030009210100f2529946850f8dd66c794a795a6b01a911f25df007e4cf5f97f38a037380f250040d0300000300004b29f079000000000000000000000000ac0d0208040000000000000000d0ed902e0000000000000000000000b528e8550182e3728703000000000000113a03b7dd2cad113a03b7c6d1e20000

you can decode this easily in the decode section of PJS Apps extrinsics:

The encoded call data is swap call on mangata...

0x0d0208040000000000000000d0ed902e0000000000000000000000b528e8550182e3728703000000000000

This TX executes on Turing but when when executing the xcm task it throws a generic error from xcmpHandler.

[decentration]

ok good news, we managed to execute the xcm task which reached mangata, however we have a weight issue:

https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Fkusama-rpc.mangata.online#/explorer/query/0x5691e78053542c9623f35c0acb516dfd128f3c977f9dd0e588081df5d247d6aa

here is the updated call data:

0x3c010004600119670000000001010100f9200100000100004b29f0790000000000000000000000003d010500009649b7c292d18ec76b166979d7047f9a6987936a69b43e3a007e235a4d3a253a01000d01040000000000000000d0ed902e0000000000000000000000b528e8550182e3728703000000000000113a03b7dd2cad113a03b7c6d1e20000

[imstar15]

Hi @decentration

I schedule a task to call xyk.multiswapSellAsset by xcm-demo, branch charles-swap_asset.

https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Fturing-rpc.dwellir.com#/explorer/query/0x206ce3b475ced392241808ef3f4d1c6e7c0c342058384ffead4c617c9ce4320b

put you exported private key in private folder

PASS_PHRASE=<PASS_PHRASE> yarn run mangata-kusama

encoded code:

0x3c01000840c619670000000098c819670000000003010100f9200301010009210301010009216a4cb29800000000000000000000000041010500003830ef2fdb02d711afe91c830737375e32ac9904886266897f361b5a2ec13a3901000d0208070000000000000000ca9a3b0000000000000000000000000100000000000000000000000000000003dcb263e6894907dc9b081c0189490000

My weight:

Your weight:

Task executed:

https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Fturing-rpc.dwellir.com#/explorer/query/5912758

Please compare your weight calculation with xcm-demo.

But Mangata do not allow proxy to execute xyk.multiswapSellAsset.

https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Fkusama-archive.mangata.online#/explorer/query/5918821

There's only AutoCompund type in Mangata's proxy type list.

[decentration]

hey Charles @imstar15 thanks for this!

So just so i understand the flow, proxy is a necessary part of the process, and we need to allow multiswapSellAsset as part of their proxy type? just to confirm proxy is required in the process, and its a one time thing if it was added to the proxy type list.

Maybe we can do this by using forceProxyType? I will try this now. But actually this doesnt fit the flow because one has to hard code the exact swap.

if we cant, then will need to wait for mangata to add "Swap" to their proxy types.

[imstar15]

I have try your solution.

I schedule task to call xyk.multiswapSellAsset by proxy with the undefined forceProxyType param.

const compoundRewardsExtrinsic = mangataApi.tx.xyk.multiswapSellAsset([7, 0], '1000000000', '1');
        const taskPayloadExtrinsic = mangataApi.tx.proxy.proxy(u8aToHex(keyringPair.addressRaw), undefined, compoundRewardsExtrinsic);

https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Fkusama-archive.mangata.online#/explorer/query/0xf0f2737e1438200edba3bc54331ee3bd7fbeabaa9d1c2c7adb0feaef2185909a

The proxy.proxy is not executed.

I think we need to wait for mangata to add "Swap" to their proxy types.

@decentration

[flipchan]

I think we need to wait for mangata to add "Swap" to their proxy types.

Thanks for a great response @imstar15 , I was scratching my head trying to wrap the proxy call in a polkadotxcm.send tx, the bottleneck here is managatax chain, so other supported proxy types on other connected chains should potentially work than.

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