Add grpc client in broker service

broker-service/cmd/api/handlers.go

@@ -1,8 +1,10 @@
 package main
 
 import (
-	"broker/cmd/api/event"
+	"broker/event"
+	"broker/logs"
 	"bytes"
+	"context"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -10,6 +12,9 @@ import (
 	"net/http"
 	"net/rpc"
 	"time"
+
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
 )
 
 type RequestPayload struct {
@@ -57,12 +62,14 @@ func (app *Config) HandleSubmission(w http.ResponseWriter, r *http.Request) {
 	switch requestPayload.Action {
 	case "auth":
 		app.authenticate(w, requestPayload.Auth)
-	case "logHttp": // 2729 us
+	case "logHttp": // 2336 us
 		app.LogItem(w, requestPayload.Log)
-	case "logRabbit": // 10007 us
+	case "logRabbit": // 7825 us
 		app.logEventViaRabbit(w, requestPayload.Log)
-	case "logRpc": // 555 us
+	case "logRpc": // 2097 us
 		app.logItemViaRPC(w, requestPayload.Log)
+	case "logGrpc": // 236882 us
+		app.LogViaGRPC(w, requestPayload.Log)
 	case "mail":
 		app.SendMail(w, requestPayload.Mail)
 	default:
@@ -253,3 +260,39 @@ func (app *Config) logItemViaRPC(w http.ResponseWriter, l LogPayload) {
 
 	app.writeJSON(w, http.StatusOK, payload)
 }
+
+func (app *Config) LogViaGRPC(w http.ResponseWriter, l LogPayload) {
+	conn, err := grpc.NewClient(
+		"logger-service:50001",
+		grpc.WithTransportCredentials(insecure.NewCredentials()),
+	)
+	if err != nil {
+		app.errorJSON(w, err)
+		return
+	}
+	defer conn.Close()
+
+	now := time.Now()
+	l.Data += fmt.Sprintf("gRPC sent date %d", now.UnixMicro())
+
+	c := logs.NewLogServiceClient(conn)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+
+	_, err = c.WriteLog(ctx, &logs.LogRequest{
+		LogEntry: &logs.Log{
+			Name: l.Name,
+			Data: l.Data,
+		},
+	})
+	if err != nil {
+		app.errorJSON(w, err)
+		return
+	}
+
+	var payload jsonResponse
+	payload.Error = false
+	payload.Message = "logged via gRPC"
+
+	app.writeJSON(w, http.StatusOK, payload)
+}

broker-service/go.mod

@@ -7,4 +7,15 @@ require (
 	github.com/go-chi/cors v1.2.1
 )
 
-require github.com/rabbitmq/amqp091-go v1.10.0
+require (
+	github.com/rabbitmq/amqp091-go v1.10.0
+	google.golang.org/grpc v1.66.0
+	google.golang.org/protobuf v1.34.1
+)
+
+require (
+	golang.org/x/net v0.26.0 // indirect
+	golang.org/x/sys v0.21.0 // indirect
+	golang.org/x/text v0.16.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240604185151-ef581f913117 // indirect
+)

broker-service/go.sum

@@ -2,7 +2,21 @@ github.com/go-chi/chi/v5 v5.1.0 h1:acVI1TYaD+hhedDJ3r54HyA6sExp3HfXq7QWEEY/xMw=
 github.com/go-chi/chi/v5 v5.1.0/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
 github.com/go-chi/cors v1.2.1 h1:xEC8UT3Rlp2QuWNEr4Fs/c2EAGVKBwy/1vHx3bppil4=
 github.com/go-chi/cors v1.2.1/go.mod h1:sSbTewc+6wYHBBCW7ytsFSn836hqM7JxpglAy2Vzc58=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/rabbitmq/amqp091-go v1.10.0 h1:STpn5XsHlHGcecLmMFCtg7mqq0RnD+zFr4uzukfVhBw=
 github.com/rabbitmq/amqp091-go v1.10.0/go.mod h1:Hy4jKW5kQART1u+JkDTF9YYOQUHXqMuhrgxOEeS7G4o=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
+golang.org/x/net v0.26.0 h1:soB7SVo0PWrY4vPW/+ay0jKDNScG2X9wFeYlXIvJsOQ=
+golang.org/x/net v0.26.0/go.mod h1:5YKkiSynbBIh3p6iOc/vibscux0x38BZDkn8sCUPxHE=
+golang.org/x/sys v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=
+golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4=
+golang.org/x/text v0.16.0/go.mod h1:GhwF1Be+LQoKShO3cGOHzqOgRrGaYc9AvblQOmPVHnI=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240604185151-ef581f913117 h1:1GBuWVLM/KMVUv1t1En5Gs+gFZCNd360GGb4sSxtrhU=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240604185151-ef581f913117/go.mod h1:EfXuqaE1J41VCDicxHzUDm+8rk+7ZdXzHV0IhO/I6s0=
+google.golang.org/grpc v1.66.0 h1:DibZuoBznOxbDQxRINckZcUvnCEvrW9pcWIE2yF9r1c=
+google.golang.org/grpc v1.66.0/go.mod h1:s3/l6xSSCURdVfAnL+TqCNMyTDAGN6+lZeVxnZR128Y=
+google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
+google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=

broker-service/logs/logs.proto

@@ -0,0 +1,23 @@
+syntax = "proto3";
+
+package logs;
+
+option go_package = "/logs";
+
+message Log {
+    string name = 1;
+    string data = 2;
+}
+
+message LogRequest {
+    Log logEntry = 1;
+}
+
+message LogResponse {
+    string result = 1;
+}
+
+service LogService {
+    rpc WriteLog(LogRequest) returns (LogResponse);
+}
+

front-end/cmd/web/templates/test.page.gohtml

@@ -12,6 +12,7 @@
                 <a id="logHttpBtn" class="btn btn-outline-secondary" href="javascript:void(0);">Test HTTP Log</a>
                 <a id="logRabbitBtn" class="btn btn-outline-secondary" href="javascript:void(0);">Test Rabbit Log</a>
                 <a id="logRpcBtn" class="btn btn-outline-secondary" href="javascript:void(0);">Test RPC Log</a>
+                <a id="logGrpcBtn" class="btn btn-outline-secondary" href="javascript:void(0);">Test gRPC Log</a>
                 <a id="mailBtn" class="btn btn-outline-secondary" href="javascript:void(0);">Test Mail</a>
 
                 <div id="output" class="mt-5" style="outline: 1px solid silver; padding: 2em;">
@@ -44,6 +45,7 @@
         let logHttpBtn = document.getElementById("logHttpBtn");
         let logRabbitBtn = document.getElementById("logRabbitBtn");
         let logRpcBtn = document.getElementById("logRpcBtn");
+        let logGrpcBtn = document.getElementById("logGrpcBtn");
         let output = document.getElementById("output");
         let sent = document.getElementById("payload");
         let received = document.getElementById("received");
@@ -196,6 +198,38 @@
                 });
         });
 
+        logGrpcBtn.addEventListener("click", () => {
+            const payload = {
+                action: "logGrpc",
+                log: {
+                    name: "event",
+                    data: "some kind of data",
+                }
+            };
+            const headers = new Headers();
+            headers.append("Content-Type", "application/json");
+            const body = {
+                method: 'POST',
+                body: JSON.stringify(payload),
+                headers: headers,
+            }
+            fetch("http:\/\/localhost:8080/handle", body)
+            .then((response) => response.json())
+                .then((data) => {
+                    sent.innerHTML = JSON.stringify(payload, undefined, 4);
+                    received.innerHTML = JSON.stringify(data, undefined, 4);
+                    if (data.error) {
+                        console.log(data.message);
+                        output.innerHTML += `<br><strong>Error:</strong>: ${data.message}`;
+                    } else {
+                        output.innerHTML += `<br><strong>Response from broker service</strong>: ${data.message}`;
+                    }
+                })
+                .catch((error) => {
+                    output.innerHTML += "<br><br>Error: " + error;
+                });
+        });
+
         mailBtn.addEventListener("click", () => {
             const payload = {
                 action: "mail",

logger-service/cmd/api/grpc.go

@@ -7,6 +7,7 @@ import (
 	"logger/data"
 	"logger/logs"
 	"net"
+	"time"
 
 	"google.golang.org/grpc"
 )
@@ -20,6 +21,7 @@ func (l *LogServer) WriteLog(
 	ctx context.Context,
 	req *logs.LogRequest,
 ) (*logs.LogResponse, error) {
+	now := time.Now()
 	input := req.GetLogEntry()
 
 	// write the log
@@ -28,6 +30,7 @@ func (l *LogServer) WriteLog(
 		Data: input.Data,
 	}
 
+	logEntry.Data += fmt.Sprintf(" received date %d", now.UnixMicro())
 	err := l.Models.LogEntry.Insert(logEntry)
 	if err != nil {
 		res := &logs.LogResponse{Result: "failed"}

logger-service/cmd/api/handlers.go

@@ -15,6 +15,7 @@ type JSONPayload struct {
 
 func (app *Config) WriteLog(w http.ResponseWriter, r *http.Request) {
 	// read json into var
+	now := time.Now()
 	var requestPayload JSONPayload
 	err := app.readJSON(w, r, &requestPayload)
 	if err != nil {
@@ -29,7 +30,6 @@ func (app *Config) WriteLog(w http.ResponseWriter, r *http.Request) {
 		Data: requestPayload.Data,
 	}
 
-	now := time.Now()
 	event.Data += fmt.Sprintf(" received date %d", now.UnixMicro())
 
 	log.Println("event", event)