17 lines
843 B
TypeScript
17 lines
843 B
TypeScript
// Ref: https://github.com/ethereum/wiki/wiki/JSON-RPC
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import BN from 'bn.js';
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import { toBuffer, addHexPrefix, bufferToHex } from 'ethereumjs-util';
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import trimStart from 'lodash/trimStart';
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// When encoding QUANTITIES (integers, numbers): encode as hex, prefix with "0x", the most compact representation (slight exception: zero should be represented as "0x0").
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export function hexEncodeQuantity(value: BN | Buffer): string {
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const trimmedValue = trimStart((value as any).toString('hex'), '0'); //TODO: fix typing
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return addHexPrefix(trimmedValue === '' ? '0' : trimmedValue);
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}
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// When encoding UNFORMATTED DATA (byte arrays, account addresses, hashes, bytecode arrays): encode as hex, prefix with "0x", two hex digits per byte.
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export function hexEncodeData(value: string | Buffer): string {
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return bufferToHex(toBuffer(value));
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}
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