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const express = require('express');
const morgan = require('morgan');
const helmet = require('helmet');
const cors = require('cors');
const { auth } = require('express-oauth2-jwt-bearer');
const authConfig = require('./auth_config.json');

const app = express();

if (
  !authConfig.domain ||
  !authConfig.authorizationParams.audience ||
  ["YOUR_API_IDENTIFIER", "{yourApiIdentifier}"].includes(authConfig.authorizationParams.audience)
) {
  console.log(
    "Exiting: Please make sure that auth_config.json is in place and populated with valid domain and audience values"
  );

  process.exit();
}

app.use(morgan('dev'));
app.use(helmet());
app.use(
  cors({
    origin: authConfig.appUri,
  })
);

const checkJwt = auth({
  audience: authConfig.authorizationParams.audience,
  issuerBaseURL: `https://${authConfig.domain}`,
});

app.get('/api/external', checkJwt, (req, res) => {
  res.send({
    msg: 'Your access token was successfully validated!',
  });
});

const port = process.env.API_SERVER_PORT || 3001;

app.listen(port, () => console.log(`Api started on port ${port}`));