// FromContext retrieves the Env from the Context. If one isn't found, an error
// is returned.
func FromContext(ctx context.Context) (*Env, error) {
if e, ok := ctx.Value(contextEnvKey).(*Env); ok {
return e, nil
}
return nil, ctxerr.Wrap(ctx, errEnvNotFound)
}
// ContextConfig returns the config from the context.
func ContextConfig(ctx context.Context) Config {
ac, _ := ctx.Value(configKey).(Config)
return ac
}
// ContextParams extracts out the params from the context if possible.
func ContextParams(ctx context.Context) httprouter.Params {
p, _ := ctx.Value(contextParamsKey).(httprouter.Params)
return p
}