@canvas-js/chain-cosmos

@canvas-js/chain-cosmos

The Cosmos session signer takes an injected Cosmos signer, which may be an EthereumSigner, AminoSigner, or BytesSigner, and uses it to authenticate a new session.

It also handles verification of messages matching any of these authentication methods.

Table of Contents

• Installation
• API

Installation

npm i @canvas-js/chain-cosmos

API

import type { Signature, SessionSigner, Action, Message, Session } from "@canvas-js/interfaces"
import { CosmosSessionData, ExternalCosmosSigner } from "./types.js"
export interface CosmosSignerInit {
  signer?: ExternalCosmosSigner
  sessionDuration?: number
  bech32Prefix?: string
}
export declare class CosmosSigner implements SessionSigner {
  constructor({ signer, sessionDuration, bech32Prefix }?: CosmosSignerInit)

  readonly match: (address: string) => boolean
  verifySession(topic: string, session: Session): Promise<void>
  getSession(
    topic: string,
    options?: {
      timestamp?: number
      fromCache?: boolean
    },
  ): Promise<Session<CosmosSessionData>>
  sign(message: Message<Action | Session>): Signature
  clear(topic: string): Promise<void>
}