hypershield
Version:
Middleware suite for high-performance and resilient APIs
44 lines • 2.09 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.GzipCompressor = void 0;
const zlib_1 = require("zlib");
const util_1 = require("util");
const constants_1 = require("../../../core/constants/constants");
const gzipAsync = (0, util_1.promisify)(zlib_1.gzip);
const gunzipAsync = (0, util_1.promisify)(zlib_1.gunzip);
class GzipCompressor {
constructor(level = constants_1.COMPRESSION.GZIP.DEFAULT_LEVEL) {
this.level = Math.min(Math.max(level, constants_1.COMPRESSION.GZIP.MIN_LEVEL), constants_1.COMPRESSION.GZIP.MAX_LEVEL);
}
compress(data) {
return __awaiter(this, void 0, void 0, function* () {
if (!data || (typeof data === 'string' && !data.length)) {
throw new Error('Invalid input: empty data');
}
try {
const input = Buffer.isBuffer(data) ? data : Buffer.from(data);
return yield gzipAsync(input, { level: this.level });
}
catch (error) {
console.error(`Compression error: ${error}`);
throw new Error(`Failed to compress data: ${error}`);
}
});
}
decompress(data) {
return __awaiter(this, void 0, void 0, function* () {
return gunzipAsync(data);
});
}
}
exports.GzipCompressor = GzipCompressor;
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