Files
higress/plugins/wasm-go/extensions/hello-world/main.go
2022-11-16 11:43:46 +08:00

42 lines
1.3 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/tetratelabs/proxy-wasm-go-sdk/proxywasm"
"github.com/tetratelabs/proxy-wasm-go-sdk/proxywasm/types"
"github.com/alibaba/higress/plugins/wasm-go/pkg/wrapper"
)
func main() {
wrapper.SetCtx(
"hello-world",
wrapper.ProcessRequestHeadersBy(onHttpRequestHeaders),
)
}
type HelloWorldConfig struct {
}
func onHttpRequestHeaders(ctx wrapper.HttpContext, config HelloWorldConfig, log wrapper.Log) types.Action {
err := proxywasm.AddHttpRequestHeader("hello", "world")
if err != nil {
log.Critical("failed to set request header")
}
proxywasm.SendHttpResponse(200, nil, []byte("hello world"), -1)
return types.ActionContinue
}