bug: "panic: interface conversion: interface {} is []interface {}, not string"

[danimesq]

BTW I don't think I should guess this as "bug"; it could be a user-side issue about formatting.

ethereal contract call --contract=0x3f8C2152b79276b78315CAF66cCF951780580A8a --abi=abi.json --call='balanceOf(0xDDfC2e10702d8A781727A34D83B3bb3CA94a3E91)' --from=0xDDfC2e10702d8A781727A34D83B3bb3CA94a3E91

and

ethereal contract call --contract=0x3f8C2152b79276b78315CAF66cCF951780580A8a --abi=abi.json --call='tokenOfOwnerByIndex(0xDDfC2e10702d8A781727A34D83B3bb3CA94a3E91,0)' --from=0xDDfC2e10702d8A781727A34D83B3bb3CA94a3E91

Works properly, reading from the smart-contract.

But:

ethereal contract call --contract=0xf5b0a3efb8e8e4c201e2a935f110eaaf3ffecb8d --abi=abi.json --call='tokenURI(142388)' --from=0xDDfC2e10702d8A781727A34D83B3bb3CA94a3E91

Results in:

panic: interface conversion: interface {} is []interface {}, not string

goroutine 1 [running]:
github.com/wealdtech/ethereal/cmd.contractValueToString(0x0, 0x0, 0x3, 0xc000554e48, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
/go/src/github.com/wealdtech/ethereal/cmd/contract.go:185 +0x14ad
github.com/wealdtech/ethereal/cmd.glob..func8(0x212ec80, 0xc0000464c0, 0x0, 0x4)
/go/src/github.com/wealdtech/ethereal/cmd/contractcall.go:119 +0xfdc
github.com/spf13/cobra.(*Command).execute(0x212ec80, 0xc000046480, 0x4, 0x4, 0x212ec80, 0xc000046480)
/go/pkg/mod/github.com/spf13/cobra@v1.1.1/command.go:854 +0x2aa
github.com/spf13/cobra.(*Command).ExecuteC(0x213ac20, 0x4436fa, 0x21611c0, 0xc000000180)
/go/pkg/mod/github.com/spf13/cobra@v1.1.1/command.go:958 +0x349
github.com/spf13/cobra.(*Command).Execute(...)
/go/pkg/mod/github.com/spf13/cobra@v1.1.1/command.go:895
github.com/wealdtech/ethereal/cmd.Execute()
/go/src/github.com/wealdtech/ethereal/cmd/root.go:301 +0x31
main.main()
/go/src/github.com/wealdtech/ethereal/main.go:19 +0x20

@wealdtech

[danimesq]

This is not an ethereal question, pleas ask in a solidity support channel.

This issue isn't about Solidity, but about Ethereal's syntax/formatting or wether there's a bug or not.

[mcdee]

Please provide the abi.json file used in these examples.

[danimesq]

Please provide the abi.json file used in these examples.

abi.json:

[{"constant":true,"inputs":[{"name":"interfaceID","type":"bytes4"}],"name":"supportsInterface","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"cfoAddress","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"name":"_tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_approved","type":"address"},{"name":"_tokenId","type":"uint256"}],"name":"approve","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"ceoAddress","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_axieId","type":"uint256"},{"name":"_genes","type":"uint256"}],"name":"rebirthAxie","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"whitelistSetterAddress","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"marketplaceManager","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_manager","type":"address"}],"name":"setRetirementManager","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_geneScientist","type":"address"},{"name":"_whitelisted","type":"bool"}],"name":"setGeneScientist","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"_newCEO","type":"address"}],"name":"setCEO","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_newCOO","type":"address"}],"name":"setCOO","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"name":"_tokenId","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_manager","type":"address"}],"name":"setMarketplaceManager","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"unpause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"_newCFO","type":"address"}],"name":"setCFO","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"retirementManager","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newSetter","type":"address"}],"name":"setWhitelistSetter","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"paused","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_genes","type":"uint256"},{"name":"_owner","type":"address"}],"name":"spawnAxie","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"withdrawBalance","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_marketplace","type":"address"},{"name":"_whitelisted","type":"bool"}],"name":"setMarketplace","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"geneManager","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_byeSayer","type":"address"},{"name":"_whitelisted","type":"bool"}],"name":"setByeSayer","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"pause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_manager","type":"address"}],"name":"setSpawningManager","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_manager","type":"address"}],"name":"setGeneManager","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"whitelistedByeSayer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"spawningManager","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"whitelistedGeneScientist","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spawner","type":"address"},{"name":"_whitelisted","type":"bool"}],"name":"setSpawner","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_operator","type":"address"},{"name":"_approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"whitelistedMarketplace","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_axieId","type":"uint256"}],"name":"getAxie","outputs":[{"name":"","type":"uint256"},{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_axieId","type":"uint256"},{"name":"_newGenes","type":"uint256"}],"name":"evolveAxie","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"cooAddress","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_tokenId","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"tokenURIPrefix","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"whitelistedSpawner","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_axieId","type":"uint256"},{"name":"_rip","type":"bool"}],"name":"retireAxie","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"tokenURISuffix","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_prefix","type":"string"},{"name":"_suffix","type":"string"}],"name":"setTokenURIAffixes","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_axieId","type":"uint256"},{"indexed":true,"name":"_owner","type":"address"},{"indexed":false,"name":"_genes","type":"uint256"}],"name":"AxieSpawned","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_axieId","type":"uint256"},{"indexed":false,"name":"_genes","type":"uint256"}],"name":"AxieRebirthed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_axieId","type":"uint256"}],"name":"AxieRetired","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_axieId","type":"uint256"},{"indexed":false,"name":"_oldGenes","type":"uint256"},{"indexed":false,"name":"_newGenes","type":"uint256"}],"name":"AxieEvolved","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_approved","type":"address"},{"indexed":false,"name":"_tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_operator","type":"address"},{"indexed":false,"name":"_approved","type":"bool"}],"name":"ApprovalForAll","type":"event"}]

[danimesq]

Just have built it then tested, and it works:

ethereal contract call --contract=0xf5b0a3efb8e8e4c201e2a935f110eaaf3ffecb8d --abi=abi-axie.json --call='tokenURI(142388)' --from=0xDDfC2e10702d8A781727A34D83B3bb3CA94a3E91

Output:

https://axieinfinity.com/api/axies/142388

Many thanks.

[danimesq]

Will there be an new release with this fix? I don't have the recipe nor the tools to cross-build into arm64.

[mcdee]

Version 2.7.4 released.