@solana/spl-token
Version:
SPL Token Program JS API
84 lines • 3.42 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.initializeAccountInstructionData = void 0;
exports.createInitializeAccountInstruction = createInitializeAccountInstruction;
exports.decodeInitializeAccountInstruction = decodeInitializeAccountInstruction;
exports.decodeInitializeAccountInstructionUnchecked = decodeInitializeAccountInstructionUnchecked;
const buffer_layout_1 = require("@solana/buffer-layout");
const web3_js_1 = require("@solana/web3.js");
const constants_js_1 = require("../constants.js");
const errors_js_1 = require("../errors.js");
const types_js_1 = require("./types.js");
/** TODO: docs */
exports.initializeAccountInstructionData = (0, buffer_layout_1.struct)([(0, buffer_layout_1.u8)('instruction')]);
/**
* Construct an InitializeAccount instruction
*
* @param account New token account
* @param mint Mint account
* @param owner Owner of the new account
* @param programId SPL Token program account
*
* @return Instruction to add to a transaction
*/
function createInitializeAccountInstruction(account, mint, owner, programId = constants_js_1.TOKEN_PROGRAM_ID) {
const keys = [
{ pubkey: account, isSigner: false, isWritable: true },
{ pubkey: mint, isSigner: false, isWritable: false },
{ pubkey: owner, isSigner: false, isWritable: false },
{ pubkey: web3_js_1.SYSVAR_RENT_PUBKEY, isSigner: false, isWritable: false },
];
const data = Buffer.alloc(exports.initializeAccountInstructionData.span);
exports.initializeAccountInstructionData.encode({ instruction: types_js_1.TokenInstruction.InitializeAccount }, data);
return new web3_js_1.TransactionInstruction({ keys, programId, data });
}
/**
* Decode an InitializeAccount instruction and validate it
*
* @param instruction Transaction instruction to decode
* @param programId SPL Token program account
*
* @return Decoded, valid instruction
*/
function decodeInitializeAccountInstruction(instruction, programId = constants_js_1.TOKEN_PROGRAM_ID) {
if (!instruction.programId.equals(programId))
throw new errors_js_1.TokenInvalidInstructionProgramError();
if (instruction.data.length !== exports.initializeAccountInstructionData.span)
throw new errors_js_1.TokenInvalidInstructionDataError();
const { keys: { account, mint, owner, rent }, data, } = decodeInitializeAccountInstructionUnchecked(instruction);
if (data.instruction !== types_js_1.TokenInstruction.InitializeAccount)
throw new errors_js_1.TokenInvalidInstructionTypeError();
if (!account || !mint || !owner || !rent)
throw new errors_js_1.TokenInvalidInstructionKeysError();
// TODO: key checks?
return {
programId,
keys: {
account,
mint,
owner,
rent,
},
data,
};
}
/**
* Decode an InitializeAccount instruction without validating it
*
* @param instruction Transaction instruction to decode
*
* @return Decoded, non-validated instruction
*/
function decodeInitializeAccountInstructionUnchecked({ programId, keys: [account, mint, owner, rent], data, }) {
return {
programId,
keys: {
account,
mint,
owner,
rent,
},
data: exports.initializeAccountInstructionData.decode(data),
};
}
//# sourceMappingURL=initializeAccount.js.map