30 lines
1014 B
JavaScript
30 lines
1014 B
JavaScript
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import zlib from 'node:zlib';
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import { PonyfillTransformStream } from './TransformStream.js';
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import { getSupportedFormats } from './utils.js';
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export class PonyfillCompressionStream extends PonyfillTransformStream {
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static supportedFormats = getSupportedFormats();
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constructor(compressionFormat) {
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switch (compressionFormat) {
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case 'x-gzip':
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case 'gzip':
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super(zlib.createGzip());
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break;
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case 'x-deflate':
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case 'deflate':
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super(zlib.createDeflate());
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break;
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case 'deflate-raw':
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super(zlib.createDeflateRaw());
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break;
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case 'br':
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super(zlib.createBrotliCompress());
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break;
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case 'zstd':
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super(zlib.createZstdCompress());
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break;
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default:
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throw new Error(`Unsupported compression format: ${compressionFormat}`);
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}
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}
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}
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