dataveil/dist/masking/maskJWT.js

A robust TypeScript library for masking sensitive data including card numbers, emails, passwords, phone numbers, and more.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.maskJWT = maskJWT;
function maskJWT(token, options) {
    if (options === void 0) { options = {}; }
    if (!token || typeof token !== 'string') {
        throw new Error('JWT token must be a non-empty string');
    }
    var parts = token.split(".");
    if (parts.length !== 3) {
        throw new Error('Invalid JWT format - must have 3 parts separated by dots');
    }
    var _a = options.maskChar, maskChar = _a === void 0 ? "*" : _a;
    if (!maskChar || maskChar.length !== 1) {
        throw new Error('Mask character must be a single character');
    }
    var header = parts[0], payload = parts[1], signature = parts[2];
    return "".concat(maskChar.repeat(header.length), ".").concat(maskChar.repeat(payload.length), ".").concat(maskChar.repeat(signature.length));
}