# Authenticate

Before being able to request any data, one needs to authenticate with the API. If authentication is not done, further requests will be rejected and 401 error code will be returned. 

NOTE: If you encounter “Cookie Missing” error, retry the request you should be able to authenticate.

Endpoint: POST /v3/auth/web
Version: 3.0.0

## Header parameters:

  - `Content-Type` (string)
    Example: "application/json"

  - `RUI-Client` (string)
    Example: "Postman"

  - `RUI-Client-Version` (string)
    Example: "0.0.1"

  - `Origin` (string)
    Example: "https://analytics.revenera.com"

## Request fields (application/json):

  - `userName` (string)
    Example: "test@test.com"

  - `password` (string)
    Example: "helloTest"