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import dotenv from "dotenv";
import express from "express";
import winston from "winston";
import expressWinston from "express-winston";
import path from "path";
import routes from "./routes";
import Metadata, { EnvConfig } from "./metadata";
import loggerConfig from "./util/logger";
import {
configOrError,
handleStartup,
handleShutdown,
initializeToken,
} from "./config";
dotenv.config();
const LOG_LEVEL = process.env.LOG_LEVEL ?? "info";
const logger = winston.createLogger(loggerConfig("ROOT", LOG_LEVEL));
// Application-wide configuration settings
const ENV_CONFIG: EnvConfig = {
// Express configuration
bindAddress: process.env.BIND_ADDRESS ?? "localhost",
port: Number(process.env.PORT ?? 3000),
uploadLimit: Number(process.env.UPLOAD_LIMIT ?? 4194304),
// Database connection information
dbName: process.env.MONGO_DB ?? "ao-coverage",
dbUri: configOrError("MONGO_URI", logger),
// Where the server should say it's located
targetUrl: process.env.TARGET_URL ?? "http://localhost:3000",
// Directories used for serving static or uploaded files
publicDir: path.join(__dirname, "..", "public"),
hostDir: configOrError("HOST_DIR", logger),
// Application configuration
token: process.env.TOKEN ?? initializeToken(logger),
stage1: Number(process.env.STAGE_1 ?? 95),
stage2: Number(process.env.STAGE_2 ?? 80),
logLevel: LOG_LEVEL,
};
handleStartup(ENV_CONFIG, logger).then((mongo) => {
const app: express.Application = express();
const metadata = new Metadata(mongo.db(ENV_CONFIG.dbName), ENV_CONFIG);
app.use(
expressWinston.logger({
...loggerConfig("HTTP", ENV_CONFIG.logLevel),
colorize: true,
// filter out token query param from URL
msg: '{{req.method}} {{req.url.replace(/token=[-\\w.~]*(&*)/, "token=$1")}} - {{res.statusCode}} {{res.responseTime}}ms',
})
);
// actual app routes
app.use(routes(metadata));
app.use(
expressWinston.errorLogger(loggerConfig("_ERR", ENV_CONFIG.logLevel))
);
const server = app.listen(ENV_CONFIG.port, ENV_CONFIG.bindAddress, () => {
logger.info(
"Express has started: http://%s:%d/",
ENV_CONFIG.bindAddress,
ENV_CONFIG.port
);
});
// application exit handling
const signalCodes: NodeJS.Signals[] = ["SIGTERM", "SIGHUP", "SIGINT"];
signalCodes.map((code: NodeJS.Signals) => {
process.on(code, handleShutdown(mongo, server, logger));
});
});
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