@worker-tools/json-stream/esm/json-stringify-stream.js

Utilities for working with streaming JSON in Worker Runtimes such as Cloudflare Workers, Deno Deploy and Service Workers.

// deno-lint-ignore-file no-explicit-any
import { jsonStringifyGenerator } from './json-stringify.js';
export class JSONStringifyStream extends TransformStream {
    constructor() {
        let first;
        super({
            start(controller) {
                first = true;
                controller.enqueue('[');
            },
            async transform(obj, controller) {
                if (!first)
                    controller.enqueue(',');
                else
                    first = false;
                for await (const chunk of jsonStringifyGenerator(obj)) {
                    controller.enqueue(chunk);
                }
            },
            flush(controller) {
                controller.enqueue(']');
            },
        });
    }
}
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