Create a simple middleware for express and koaJS.

Freelancer: Before describe the job, We want describe some issues: 1- We looking for a freelancer that want receive jobs continuously. 2- The freelancer MUST use structure already existing in our system. So MUST use the config files, folder structure and modules. 3- Freelancer MUST use the standard of indentation (4 spaces), use beautify module, camel standard to functions and variables. Like: thisIsAFunction() 4- All functions and variables MUST be in English. 5- If freelancer believes has a better module or structure, can suggest for us, but can use ONLY if approved. 6- Use the fastest method. So if our team found a slow code, we will request to change. For example: For (var i=0 is 30% faster than For each, so if we found the second, freelancer will be requested to change. If you are ok with this, so read what the job needs: A simple middleware for express and koaJS. 1- Will have 2 JSONs files. One with blocked IPs and the second with a list of urls. 2- When express/koa receive the request this middle will check IP list, if found, so reject access and stop express sequence. 3- If not found, middleware will check url list. If found, will reject and will add this IP in memory to block for 1 hour. 4- If not found in both list, so, pass to next middleware. 5- MUST run in Linux, macOS and Windows.