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protobuf.go
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protobuf.go
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/*
* Copyright 2022 CloudWeGo 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.
*
* The MIT License (MIT)
*
* Copyright (c) 2014 Manuel Martínez-Almeida
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
* This file may have been modified by CloudWeGo authors. All CloudWeGo
* Modifications are Copyright 2022 CloudWeGo Authors.
*/
package render
import (
"github.com/cloudwego/hertz/pkg/protocol"
"google.golang.org/protobuf/proto"
)
// ProtoBuf contains the given interface object.
type ProtoBuf struct {
Data interface{}
}
var protobufContentType = "application/x-protobuf"
// Render (ProtoBuf) marshals the given interface object and writes data with custom ContentType.
func (r ProtoBuf) Render(resp *protocol.Response) error {
r.WriteContentType(resp)
bytes, err := proto.Marshal(r.Data.(proto.Message))
if err != nil {
return err
}
resp.AppendBody(bytes)
return nil
}
// WriteContentType (ProtoBuf) writes ProtoBuf ContentType.
func (r ProtoBuf) WriteContentType(resp *protocol.Response) {
writeContentType(resp, protobufContentType)
}