feat: Add sign and send all transactions feature

.changeset/empty-onions-lay.md

@@ -0,0 +1,5 @@
+---
+'@solana/wallet-standard-features': minor
+---
+
+Add solana:signAndSendAllTransactions feature

packages/core/features/src/index.ts

@@ -3,13 +3,15 @@ import type { SolanaSignAndSendTransactionFeature } from './signAndSendTransacti
 import type { SolanaSignInFeature } from './signIn.js';
 import type { SolanaSignMessageFeature } from './signMessage.js';
 import type { SolanaSignTransactionFeature } from './signTransaction.js';
+import type { SolanaSignAndSendAllTransactionsFeature } from './signAndSendAllTransactions.js';
 
 /** TODO: docs */
 export type SolanaFeatures =
     | SolanaSignAndSendTransactionFeature
     | SolanaSignInFeature
     | SolanaSignMessageFeature
-    | SolanaSignTransactionFeature;
+    | SolanaSignTransactionFeature
+    | SolanaSignAndSendAllTransactionsFeature;
 
 /** TODO: docs */
 export type WalletWithSolanaFeatures = WalletWithFeatures<SolanaFeatures>;
@@ -18,3 +20,4 @@ export * from './signAndSendTransaction.js';
 export * from './signIn.js';
 export * from './signMessage.js';
 export * from './signTransaction.js';
+export * from './signAndSendAllTransactions.js';

packages/core/features/src/signAndSendAllTransactions.ts

@@ -0,0 +1,48 @@
+import type { SolanaTransactionVersion } from './signTransaction.js';
+import type {
+    SolanaSignAndSendTransactionInput,
+    SolanaSignAndSendTransactionOutput,
+} from './signAndSendTransaction.js';
+
+/** Name of the feature */
+export const SignAndSendAllTransactions = 'solana:signAndSendAllTransactions';
+
+/** TODO: docs */
+export type SolanaSignAndSendAllTransactionsFeature = {
+    /** Name of the feature. */
+    readonly [SignAndSendAllTransactions]: {
+        /** Version of the feature API. */
+        readonly version: SolanaSignAndSendAllTransactionsVersion;
+
+        /** TODO: docs */
+        readonly supportedTransactionVersions: readonly SolanaTransactionVersion[];
+
+        /**
+         * Sign transactions using the account's secret key and send them to the chain.
+         *
+         * @param inputs {SolanaSignAndSendTransactionInput[]} Inputs for signing and sending multiple transactions.
+         * @param options {SolanaSignAndSendAllTransactionsOptions} Options for signing and sending transactions.
+         *
+         * @return Outputs of signing and sending transactions.
+         */
+        readonly signAndSendAllTransactions: SolanaSignAndSendAllTransactionsMethod;
+    };
+};
+
+/** Version of the feature. */
+export type SolanaSignAndSendAllTransactionsVersion = '1.0.0';
+
+/** TODO: docs */
+export type SolanaSignAndSendAllTransactionsMethod = (
+    inputs: readonly SolanaSignAndSendTransactionInput[],
+    options?: SolanaSignAndSendAllTransactionsOptions
+) => Promise<readonly PromiseSettledResult<SolanaSignAndSendTransactionOutput>[]>;
+
+/** Options for signing and sending multiple transactions. */
+export type SolanaSignAndSendAllTransactionsOptions = {
+    /** Mode for signing and sending transactions. */
+    readonly mode?: SolanaSignAndSendAllTransactionsMode;
+};
+
+/** Mode for signing and sending transactions. */
+export type SolanaSignAndSendAllTransactionsMode = 'parallel' | 'serial';

packages/core/features/src/signAndSendTransaction.ts

@@ -55,9 +55,6 @@ export interface SolanaSignAndSendTransactionOutput {
 
 /** Options for signing and sending a transaction. */
 export type SolanaSignAndSendTransactionOptions = SolanaSignTransactionOptions & {
-    /** Mode for signing and sending transactions. */
-    readonly mode?: SolanaSignAndSendTransactionMode;
-
     /** Desired commitment level. If provided, confirm the transaction after sending. */
     readonly commitment?: SolanaTransactionCommitment;
 
@@ -67,6 +64,3 @@ export type SolanaSignAndSendTransactionOptions = SolanaSignTransactionOptions &
     /** Maximum number of times for the RPC node to retry sending the transaction to the leader. */
     readonly maxRetries?: number;
 };
-
-/** Mode for signing and sending transactions. */
-export type SolanaSignAndSendTransactionMode = 'parallel' | 'serial';