ApiKey authentication

An API key is a token that a client provides when making API calls. The key can be sent in the query string:

GET /something?api_key=abcdef12345

or as a request header:

GET /something HTTP/1.1
X-API-Key: abcdef12345

or as a cookie:

GET /something HTTP/1.1
Cookie: X-API-KEY=abcdef12345

API keys are a secret that only the client and server know. Like Basic authentication, API key-based authentication is only considered secure if used together with other security mechanisms such as HTTPS/SSL.

Parameter	Description
`method`	The method is always `ApiKey`
`location`	Defines the location where the name-value pair is written. The location can be `header`, `query`, or `cookie`. The default location is `header`.
`paramName`	The name of the `header`, `query param`, or `cookie`. The default value is `api`.
`apiKey`	The token. The token can also be provided by the credential supplier. The token uses the `paramName` as the credential name.