44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
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// Copyright © 2016 Abcum Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package api
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import (
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"github.com/labstack/echo"
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)
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// HeadOpts defines options for the Head middleward
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type HeadOpts struct {
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CacheControl string
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}
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// Head defines middleware for setting miscellaneous headers
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func Head(opts *HeadOpts) echo.MiddlewareFunc {
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return func(h echo.HandlerFunc) echo.HandlerFunc {
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return func(c *echo.Context) error {
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// Set default values for opts.PoweredBy
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cacheControl := opts.CacheControl
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if cacheControl == "" {
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cacheControl = "no-cache"
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}
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c.Response().Header().Set("Cache-control", cacheControl)
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return h(c)
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}
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}
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}
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