// Copyright 2016 Michal Witkowski. All Rights Reserved.
// See LICENSE for licensing terms.

/*
`grpc_auth` a generic server-side auth middleware for gRPC.

Server Side Auth Middleware

It allows for easy assertion of `:authorization` headers in gRPC calls, be it HTTP Basic auth, or
OAuth2 Bearer tokens.

The middleware takes a user-customizable `AuthFunc`, which can be customized to verify and extract
auth information from the request. The extracted information can be put in the `context.Context` of
handlers downstream for retrieval.

It also allows for per-service implementation overrides of `AuthFunc`. See `ServiceAuthFuncOverride`.

Please see examples for simple examples of use.
*/
package grpc_auth