logdog/appengine/coordinator/flex/context.go

// Copyright 2017 The LUCI Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package flex

import "context"

var servicesKey = "LogDog AppEngine Flex Services"

// WithServices installs the supplied Services instance into a Context.
func WithServices(c context.Context, s Services) context.Context {
	return context.WithValue(c, &servicesKey, s)
}

// GetServices gets the Services instance installed in the supplied Context.
//
// If no Services has been installed, it will panic.
func GetServices(c context.Context) Services { return c.Value(&servicesKey).(Services) }