Interface: WalletAdapter

Defined in: packages/bitbadgesjs-sdk/src/signing/adapters/WalletAdapter.ts:13

Base interface for wallet adapters. Wallet adapters provide a unified interface for different wallet types (Cosmos, EVM).

Implementations must support either Cosmos signing (signDirect) or EVM transactions (sendEvmTransaction).

Properties#

address#

readonly address: string

Defined in: packages/bitbadgesjs-sdk/src/signing/adapters/WalletAdapter.ts:18

The address managed by this adapter (BitBadges bb-prefixed for Cosmos, 0x for EVM)

---

chainType#

readonly chainType: "evm" | "cosmos"

Defined in: packages/bitbadgesjs-sdk/src/signing/adapters/WalletAdapter.ts:15

The chain type this adapter supports

Methods#

estimateEvmGas()?#

optional estimateEvmGas(tx): Promise<bigint>

Defined in: packages/bitbadgesjs-sdk/src/signing/adapters/WalletAdapter.ts:52

Estimate gas for an EVM transaction. Only implemented by EVM wallet adapters with a provider connection.

Parameters#

tx#

EvmTransaction

Returns#

Promise<bigint>

---

getPublicKey()#

getPublicKey(): Promise<string>

Defined in: packages/bitbadgesjs-sdk/src/signing/adapters/WalletAdapter.ts:25

Get the public key in base64 format. Required for Cosmos transactions (used to build the auth info). Returns empty string for EVM-only adapters.

Returns#

Promise<string>

---

sendEvmTransaction()?#

optional sendEvmTransaction(tx): Promise<string>

Defined in: packages/bitbadgesjs-sdk/src/signing/adapters/WalletAdapter.ts:46

Send an EVM transaction. Only implemented by EVM wallet adapters.

Parameters#

tx#

EvmTransaction

The EVM transaction to send

Returns#

Promise<string>

The transaction hash

---

signDirect()?#

optional signDirect(payload, accountNumber): Promise<SigningResult>

Defined in: packages/bitbadgesjs-sdk/src/signing/adapters/WalletAdapter.ts:37

Sign a transaction using Cosmos SignDirect format. Only implemented by Cosmos wallet adapters.

Parameters#

payload#

TransactionPayload

The transaction payload containing signBytes

accountNumber#

string | number | bigint

The account number on the blockchain. Post-v34 accounts get hash-derived numbers above 2^53 — pass the chain's string value or a bigint; never Number() it.

Returns#

Promise<SigningResult>

The signature and public key

---

signTypedData()?#

optional signTypedData(typed): Promise<string>

Defined in: packages/bitbadgesjs-sdk/src/signing/adapters/WalletAdapter.ts:62

Sign EIP-712 typed-data with the wallet. Only implemented by EVM wallet adapters; lets BitBadges Cosmos messages be signed via the standard EVM signing flow (eth_signTypedData_v4 / Signer.signTypedData) so any EVM wallet can produce a valid Cosmos transaction signature. Returns a 0x...-prefixed 65-byte hex signature (r || s || v).

Parameters#

typed#

EIP712TypedData

Returns#

Promise<string>

---

supportsEvmTransaction()#

supportsEvmTransaction(): boolean

Defined in: packages/bitbadgesjs-sdk/src/signing/adapters/WalletAdapter.ts:71

Check if the adapter supports EVM transactions

Returns#

boolean

---

supportsSignAmino()#

supportsSignAmino(): boolean

Defined in: packages/bitbadgesjs-sdk/src/signing/adapters/WalletAdapter.ts:68

Check if the adapter supports Amino signing (legacy)

Returns#

boolean

---

supportsSignDirect()#

supportsSignDirect(): boolean

Defined in: packages/bitbadgesjs-sdk/src/signing/adapters/WalletAdapter.ts:65

Check if the adapter supports SignDirect signing

Returns#

boolean

---

supportsSignTypedData()#

supportsSignTypedData(): boolean

Defined in: packages/bitbadgesjs-sdk/src/signing/adapters/WalletAdapter.ts:74

Check if the adapter supports EIP-712 typed-data signing

Returns#

boolean