geckodriver/dist/index.js

Mozilla's Geckodriver for Node.js

import cp from 'node:child_process';
import { download as downloadDriver } from './install.js';
import { hasAccess, parseParams } from './utils.js';
import { DEFAULT_HOSTNAME, log } from './constants.js';
export async function start(params) {
    const { cacheDir, customGeckoDriverPath, ...startArgs } = params;
    let geckoDriverPath = process.env.GECKODRIVER_FILEPATH || customGeckoDriverPath;
    if (!geckoDriverPath) {
        geckoDriverPath = await downloadDriver(params.geckoDriverVersion, cacheDir);
    }
    if (!(await hasAccess(geckoDriverPath))) {
        throw new Error('Failed to access Geckodriver, was it installed successfully?');
    }
    startArgs.host = startArgs.host || DEFAULT_HOSTNAME;
    // By default, Geckodriver uses port 9222
    // User might pass a port for custom runs but they should modify them for each worker
    // For remaining use cases, to enable parallel instances we need to set the port to 0 (random)
    // Otherwise all instances try to connect to the default port and fail
    startArgs.websocketPort = startArgs.websocketPort ?? 0;
    const args = parseParams(startArgs);
    log.info(`Starting Geckodriver at ${geckoDriverPath} with params: ${args.join(' ')}`);
    return cp.spawn(geckoDriverPath, args);
}
export const download = downloadDriver;
export * from './types.js';
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