@hirosystems/api-toolkit/dist/fastify/fastify.js

API development toolkit

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.buildFastifyApiServer = buildFastifyApiServer;
exports.buildPrometheusServer = buildPrometheusServer;
const cors_1 = require("@fastify/cors");
const fastify_1 = require("fastify");
const fastify_metrics_1 = require("fastify-metrics");
const logger_1 = require("../logger");
const values_1 = require("../helpers/values");
/**
 * Creates a Fastify server that handles Prometheus metrics and CORS headers automatically.
 * @returns Fastify instance
 */
async function buildFastifyApiServer() {
    const fastify = (0, fastify_1.default)({
        trustProxy: true,
        logger: logger_1.PINO_LOGGER_CONFIG,
    }).withTypeProvider();
    if (values_1.isProdEnv) {
        await fastify.register(fastify_metrics_1.default, { endpoint: null });
    }
    await fastify.register(cors_1.default);
    return fastify;
}
/**
 * Creates a Fastify server that serves a `/metrics` endpoint with metrics taken from
 * `FastifyMetrics`.
 * @param args - Fastify instance metrics decorator
 * @returns Fastify instance
 */
async function buildPrometheusServer(args) {
    const promServer = (0, fastify_1.default)({
        trustProxy: true,
        logger: logger_1.PINO_LOGGER_CONFIG,
    });
    promServer.route({
        url: '/metrics',
        method: 'GET',
        logLevel: 'info',
        handler: async (_, reply) => {
            await reply.type('text/plain').send(await args.metrics.client.register.metrics());
        },
    });
    return promServer;
}
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