Middlewares and services for backend

Token middleware

This middleware parse token from http header or from query param token and add it to req.token .
    Header - "Authorization": "BlaBla our-token".
    Query param - ?token=our-token

Auth middleware

This middleware get token from req object and try to get auth user, if successed - add it to req.user

Check role middleware

This middleware get user from req.user and send req to find out if this user has grants. We can provide sessionStorage to save result.

Multer

• multerMiddleware - main middleware where we can set all config(and file and req params validation) in one place

import { multerMiddleware } from "jbackend/multer";

const app = express();

app.post(
  "/upload-file",
  multerMiddleware(
    {
      isFileRequired: true,
      multerLimits,
      logger,
      validateReqFile,
      validateReqParams,
      // if we wanna send some custom response on error
      responseOnError
    // create storage example we can watch at multer/storage/TestFileStreamProxyStorage
    storage
  ),
  (req: Request, res: Response, next: NextFunction) => {
    res.status(200).end();
  }
);

Build and publish

• commit and push changes
• run $ npm run build:lib
• run $ npm run release