pomljs/dist/util/reactRender.js

Prompt Orchestration Markup Language

import { renderToPipeableStream } from 'react-dom/server';
import { Writable } from 'stream';

const pipeableStreamToString = async (stream) => {
    return new Promise((resolve, reject) => {
        const chunks = [];
        const writable = new Writable({
            write(chunk, encoding, callback) {
                chunks.push(chunk);
                callback();
            },
            final(callback) {
                resolve(Buffer.concat(chunks).toString());
                callback();
            },
            destroy(err, callback) {
                reject(err);
                callback(err);
            }
        });
        stream(writable);
    });
};
const reactRender = (element, shellOnly) => {
    const promise = new Promise((resolve, reject) => {
        const { pipe } = renderToPipeableStream(element, {
            onAllReady: () => {
                {
                    resolve(pipeableStreamToString(pipe));
                }
            },
            onError: (error, errorInfo) => {
                console.error(errorInfo);
                reject(error);
            },
            onShellError: error => {
                reject(error);
            },
            onShellReady: () => {
            }
        });
    });
    return promise;
};

export { reactRender };
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