resource-watch/converter

const logger = require('logger');
const Koa = require('koa');
const bodyParser = require('koa-bodyparser');
const config = require('config');
const koaLogger = require('koa-logger');
const loader = require('loader');
const ErrorSerializer = require('serializers/errorSerializer');
const { RWAPIMicroservice } = require('rw-api-microservice-node');
const koaSimpleHealthCheck = require('koa-simple-healthcheck');

async function init() {
    return new Promise((resolve) => {

        const app = new Koa();

        app.use(koaSimpleHealthCheck());
        app.use(koaLogger());

        app.use(bodyParser({
            jsonLimit: '50mb'
        }));

        // catch errors and send in jsonapi standard. Always return vnd.api+json
        app.use(async (ctx, next) => {
            try {
                await next();
            } catch (err) {
                ctx.status = err.status || 500;

                if (ctx.status >= 500) {
                    logger.error(err);
                } else {
                    logger.info(err);
                }
                ctx.body = ErrorSerializer.serializeError(ctx.status, err.message);
                if (process.env.NODE_ENV === 'prod' && ctx.status === 500) {
                    ctx.body = 'Unexpected error';
                }
            }
            ctx.response.type = 'application/vnd.api+json';
        });

        app.use(RWAPIMicroservice.bootstrap({
            logger,
            gatewayURL: process.env.GATEWAY_URL,
            microserviceToken: process.env.MICROSERVICE_TOKEN,
            fastlyEnabled: process.env.FASTLY_ENABLED,
            fastlyServiceId: process.env.FASTLY_SERVICEID,
            fastlyAPIKey: process.env.FASTLY_APIKEY,
            requireAPIKey: process.env.REQUIRE_API_KEY || true,
            awsCloudWatchLoggingEnabled: process.env.AWS_CLOUDWATCH_LOGGING_ENABLED || true,
            awsRegion: process.env.AWS_REGION,
            awsCloudWatchLogStreamName: config.get('service.name'),
        }));

        loader.loadRoutes(app);

        // get port of environment, if not exist obtain of the config.
        // In production environment, the port must be declared in environment variable
        const port = config.get('service.port');

        const server = app.listen(port);

        logger.info(`Server started in port:${port}`);
        resolve({ app, server });
    });
}

module.exports = init;