This project has been created by Caio Henrique to be resolution for an assessment created by Ve Interactive.

The assessment was created based on the instructions below.

Please write a program or API that can generate a one-time password and verify if the password is valid for one user only.

• User ID to generate the password;
• Use the User ID and the password to verify the validity of the password;
• Every generated password should be valid for 30 seconds.

Some information were not clear to me:

Should I use a database or not? As it is an assessment, I have assumed it was to verify my programming logic, not the technology in use, so I used a list in memory with valid users.

Could the password be valid for 30 seconds even if it was regenerated within this time? I have assumed as yes, as this code could be a 2-step verification api.

Could two users have the same password? Well, I think it could not, as it's written here: "and verify if the password is valid for one user only".

It is a MVC application, so you have to run the application and use the following actions. The return is based on JSend specification, simplified to return only true or false in status.

http://url/Password/GeneratePassword?userId=userId

Parameters:

• userId: User ID to generate password

Return:

{
	status: true,		// status of the generation
	data: "000000",		// generated password
	message: null,		// error message
	code: null			// error code
}

http://url/Password/ValidatePassword?userId=userId&password=password

Parameters:

• userId: User ID to generate password
• password: Password of the given User

Return:

{
	status: true,		// status of the validity
	data: null,			// nothing
	message: null,		// error message
	code: null			// error code
}

Developed by Caio Henrique.

Contact info:

• Email: chgsantos@gmail.com
• Skype: chgsantos
• Mobile: +55 31 99744-1000