Sign and Submit Transaction

[aryaramadika]

Hello team, how do I execute a simple transfer and signAndSend transaction? I've followed the example, but I'm encountering this error: 'Unhandled Exception: Exception: {code: 1002, message: Verification Error: Runtime error: Execution failed: Execution aborted due to trap: wasm trap: wasm unreachable instruction executed' when I submit the extrinsic.

[leonardocustodio]

What network are you trying to send the extrinsic to? Also have you run polkadart_cli ?

[leonardocustodio]

If it is easier, feel free to send a PR, and I will publish a new version. I'm OOO and will not be able to do that right now.

[clangenb]

Westend and Kusama are already upgraded and require the new signed extension. Polkadot/Paseo do not need any changes as of now.

[aryaramadika]

So what should I do? Do I need to upgrade the Polkadart version? Because I still get the same error. @clangenb

[clangenb]

I have submitted an upstream PR that fixes your issue. So you can check out that PR, or if you use polkadart as a dependency you can switch to git dependencies (but beware, git dependencies in dart are a hassle, it might make sense to wait until a new version is published.) See #460

[aryaramadika]

thanks it works well in Paseo 🙏

[aryaramadika]

I want to ask a question, but it's off-topic and might seem dumb. What is the best way to get transaction history?

[leonardocustodio]

The change on #460 has been published under polkadart 0.4.5.
About transaction history there is no way to do that @aryaramadika , you need an indexer for that.
Otherwise, you need to go through all blocks see all extrinsics, and find the ones that you want, which, is obviously, undoable for any realtime software.

[aryaramadika]

Oh, okay, thank you 🙏. Sorry, I want to ask one more question. How can I get the raw seed or private key from an account? Is it possible or not?