[REST API] Secp256k1 signature support

[Mama1emon]

Hello,

I am encountering an issue with sending a transaction from my secp256k1 address using the REST API. The official documentation states that the blockchain supports this curve, but I am unable to find the signature type in the API specification.

[gregnazario]

It's made in a different way than Ed25519 signatures. Instead they're under SingleKeySignature https://api.devnet.aptoslabs.com/v1/spec#/schemas/SingleKeySignature

And associated SingleKeyAuthenticator

[gregnazario]

Hey, sorry was on some time off.

Getting some others to look at this.

[gregnazario]

Hey, it looks like there was a bug in the JSON format for single sender.

Highly suggest you use the BCS format in the TypeScript SDK, or is there a different language you prefer?

[Mama1emon]

@gregnazario
I'm using the Kotlin language, so I'm working with JSON.
Can you tell me when the bug will be fixed?

[davidiw]

The JSON API for transactions?

[gregnazario]

You can take a look at this Kotlin SDK https://github.com/mcxross/kaptos

I believe it has secp256k1 support via BCS