fix: add missing getSlot API
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@ -94,6 +94,7 @@ declare module '@solana/web3.js' {
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getClusterNodes(): Promise<Array<ContactInfo>>;
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getEpochVoteAccounts(): Promise<Array<VoteAccountInfo>>;
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confirmTransaction(signature: TransactionSignature): Promise<boolean>;
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getSlot(): Promise<number>;
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getSlotLeader(): Promise<string>;
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getSignatureStatus(
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signature: TransactionSignature,
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@ -160,6 +160,11 @@ const GetProgramAccountsRpcResult = jsonRpcResult(
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*/
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const ConfirmTransactionRpcResult = jsonRpcResult('boolean');
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/**
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* Expected JSON RPC response for the "getSlot" message
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*/
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const GetSlot = jsonRpcResult('number');
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/**
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* Expected JSON RPC response for the "getSlotLeader" message
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*/
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@ -535,6 +540,20 @@ export class Connection {
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return res.result;
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}
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/**
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* Fetch the current slot that the node is processing
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*/
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async getSlot(): Promise<number> {
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const unsafeRes = await this._rpcRequest('getSlot', []);
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const res = GetSlot(unsafeRes);
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if (res.error) {
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throw new Error(res.error.message);
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}
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assert(typeof res.result !== 'undefined');
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return res.result;
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}
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/**
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* Fetch the current slot leader of the cluster
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*/
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@ -128,6 +128,31 @@ test('get balance', async () => {
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expect(balance).toBeGreaterThanOrEqual(0);
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});
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test('get slot', async () => {
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const connection = new Connection(url);
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mockRpc.push([
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url,
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{
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method: 'getSlot',
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},
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{
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error: null,
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result: 123,
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},
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]);
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const slotLeader = await connection.getSlot();
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if (mockRpcEnabled) {
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expect(slotLeader).toBe(123);
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} else {
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// No idea what the correct slot value should be on a live cluster, so
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// just check the type
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expect(typeof slotLeader).toBe('number');
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}
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});
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test('get slot leader', async () => {
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const connection = new Connection(url);
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