Serve the wasm filter on /plugins/wasm/http-trace-filter.wasm

Makefile

@@ -31,18 +31,21 @@ ui: ## Build UI
 	@(cd ui; npm i ; npm run build; )
 	@ls -l ui/build
 
+.PHONY: copy_wasm
+copy_wasm: backend/pkg/rest/http-trace-filter.wasm ## Copy the wasm filter binary file to the APIClarity source code to be emmbeded as a resource
+	cp wasm-filters/bin/release/http-trace-filter.wasm backend/pkg/rest/http-trace-filter.wasm
 .PHONY: backend
-backend: ## Build Backend
+backend: copy_wasm ## Build Backend
 	@(echo "Building Backend ..." )
 	@(cd backend && go build --tags=json1 -o bin/backend cmd/backend/main.go && ls -l bin/)
 
 .PHONY: backend_linux
-backend_linux: ## Build Backend Linux
+backend_linux: copy_wasm ## Build Backend Linux
 	@(echo "Building Backend linux..." )
 	@(cd backend && GOOS=linux go build --tags=json1 -o bin/backend_linux cmd/backend/main.go && ls -l bin/)
 
 .PHONY: backend_test
-backend_test: ## Build Backend test
+backend_test: copy_wasm ## Build Backend test
 	@(echo "Building Backend test ..." )
 	@(cd backend && go build --tags=json1 -o bin/backend_test cmd/test/main.go && ls -l bin/)
 

backend/pkg/rest/server.go

@@ -16,8 +16,10 @@
 package rest
 
 import (
+	"bytes"
 	"fmt"
 	"net/http"
+	"time"
 
 	"github.com/go-openapi/loads"
 	"github.com/go-openapi/runtime/middleware"
@@ -209,6 +211,9 @@ func CreateRESTServer(config *ServerConfig) (*Server, error) {
 
 	// Enhance the default handler with modules apis handlers
 	newHandler.Handle("/api/modules/", config.ModulesManager.HTTPHandler())
+	newHandler.HandleFunc("/plugins/wasm/http-trace-filter.wasm", func(w http.ResponseWriter, r *http.Request) {
+		http.ServeContent(w, r, "http-trace-filter.wasm", time.Time{}, bytes.NewReader(wasmPluginBinary))
+	})
 	newHandler.Handle("/", origHandler)
 	server.SetHandler(newHandler)
 	s.server = server

backend/pkg/rest/wasm_local.go

@@ -0,0 +1,23 @@
+// Copyright © 2023 Cisco Systems, Inc. and its affiliates.
+// All rights reserved.
+//
+// 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 rest
+
+import (
+	_ "embed"
+)
+
+//go:embed http-trace-filter.wasm
+var wasmPluginBinary []byte