Files
higress/plugins/wasm-go/extensions/streaming-body-example/main.go

56 lines
1.9 KiB
Go

// Copyright (c) 2022 Alibaba Group Holding Ltd.
//
// 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 main
import (
"github.com/higress-group/proxy-wasm-go-sdk/proxywasm"
"github.com/higress-group/proxy-wasm-go-sdk/proxywasm/types"
"github.com/alibaba/higress/plugins/wasm-go/pkg/wrapper"
)
func main() {
wrapper.SetCtx(
"streaming-body-example",
wrapper.ProcessRequestHeadersBy(onHttpRequestHeaders),
wrapper.ProcessStreamingRequestBodyBy(onHttpRequestBody),
wrapper.ProcessResponseHeadersBy(onHttpResponseHeaders),
wrapper.ProcessStreamingResponseBodyBy(onHttpResponseBody),
)
}
type Config struct {
}
func onHttpRequestHeaders(ctx wrapper.HttpContext, config Config, log wrapper.Log) types.Action {
proxywasm.RemoveHttpRequestHeader("content-length")
return types.ActionContinue
}
func onHttpRequestBody(ctx wrapper.HttpContext, config Config, chunk []byte, isLastChunk bool, log wrapper.Log) []byte {
log.Infof("receive request body chunk:%s, isLastChunk:%v", chunk, isLastChunk)
return []byte("test\n")
}
func onHttpResponseHeaders(ctx wrapper.HttpContext, config Config, log wrapper.Log) types.Action {
proxywasm.RemoveHttpResponseHeader("content-length")
return types.ActionContinue
}
func onHttpResponseBody(ctx wrapper.HttpContext, config Config, chunk []byte, isLastChunk bool, log wrapper.Log) []byte {
log.Infof("receive response body chunk:%s, isLastChunk:%v", chunk, isLastChunk)
return []byte("test\n")
}