23 lines
745 B
TypeScript
23 lines
745 B
TypeScript
import { Transform } from "stream";
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import { StringDecoder } from "string_decoder";
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import { SerializationFormats } from "./baseDefinitions";
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export function parse(
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format: SerializationFormats = SerializationFormats.utf8,
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): Transform {
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const decoder = new StringDecoder(format);
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return new Transform({
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readableObjectMode: true,
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writableObjectMode: true,
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async transform(chunk: Buffer, encoding, callback) {
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try {
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const asString = decoder.write(chunk);
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// Using await causes parsing errors to be emitted
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callback(undefined, await JSON.parse(asString));
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} catch (err) {
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callback(err);
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}
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},
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});
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}
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