trifid/dist/server.js

Trifid - Lightweight Linked Data Server and Proxy

#!/usr/bin/env node
import { dirname, join } from 'node:path';
import { fileURLToPath } from 'node:url';
import { Command } from 'commander';
import trifid from 'trifid-core';
const program = new Command();
const currentDir = dirname(fileURLToPath(import.meta.url));
const sparqlConfigPath = join(currentDir, 'instances', 'docker-sparql', 'config.yaml');
const defaultConfigurationFile = process.env.TRIFID_CONFIG || sparqlConfigPath;
program
    .option('-c, --config <path>', 'configuration file', defaultConfigurationFile)
    .option('-p, --port <port>', 'listener port', parseInt)
    .option('--sparql-endpoint-url <url>', 'SPARQL endpoint URL')
    .option('--dataset-base-url <url>', 'the base URL of the dataset to enable rewriting')
    .parse(process.argv);
const opts = program.opts();
const configFile = (opts.config && !opts.config.startsWith('/'))
    ? join(process.cwd(), opts.config)
    : opts.config;
// create a minimal configuration that extends the specified one
const globals = {};
const listener = {};
// add optional arguments to the configuration
if (opts.port) {
    listener.port = opts.port;
}
if (opts.sparqlEndpointUrl) {
    globals.sparqlEndpoint = {
        url: opts.sparqlEndpointUrl,
    };
    process.env.SPARQL_ENDPOINT_URL = opts.sparqlEndpointUrl;
}
if (opts.datasetBaseUrl) {
    globals.datasetBaseUrl = opts.datasetBaseUrl;
    process.env.DATASET_BASE_URL = opts.datasetBaseUrl;
}
const config = {
    extends: [configFile],
    globals,
    server: {
        listener,
    },
};
// load the configuration and start the server
const instance = await trifid(config);
instance.start();