Step 4.a

[lunguyenhat]

Add a new /preregistration/share2earn/:account (GET) endpoint to get the share2earn.

Validations should be returning using 4xx error and a json document:

{
   "error": "<specific error>"
}

Validations:

• Account in invalid format (regex): 406
• Account not found in the preregistration collection AND in the account collection (it needs to be in both): 404

Procedure:

If everything succeeds, return a 201 http code:

{
   "result": "share2earn"
}