go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/server/middleware/timeout.go (about)

     1  // Copyright 2021 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package middleware
    16  
    17  import (
    18  	"time"
    19  
    20  	"go.chromium.org/luci/common/clock"
    21  
    22  	"go.chromium.org/luci/server/router"
    23  )
    24  
    25  // WithContextTimeout returns a middleware that adds a timeout to the context.
    26  func WithContextTimeout(timeout time.Duration) router.Middleware {
    27  	return func(c *router.Context, next router.Handler) {
    28  		ctx, cancel := clock.WithTimeout(c.Request.Context(), timeout)
    29  		defer cancel()
    30  		c.Request = c.Request.WithContext(ctx)
    31  		next(c)
    32  	}
    33  }