Health Check Function Implemented - Wakeup Call

call-profile/main.go

@@ -526,7 +526,10 @@ func handler(request events.APIGatewayProxyRequest) (events.APIGatewayProxyRespo
 		userUrl = userUrl + "/"
 	}
 	var isServiceRunning bool
-	_, serviceErr := http.Get(userUrl + "health")
+	c := &http.Client{
+		Timeout: 5 * time.Second,
+	}
+	_, serviceErr := c.Get(userUrl + "health")
 	if serviceErr != nil {
 		isServiceRunning = false
 	} else {

health-check/go.mod

@@ -1,9 +1,49 @@
+module healthCheck
+
+go 1.21.5
+
 require (
-	github.com/aws/aws-lambda-go v1.28.0
-	github.com/stretchr/testify v1.6.1
-	gopkg.in/yaml.v3 v3.0.1 // indirect
+	cloud.google.com/go/firestore v1.14.0
+	firebase.google.com/go v3.13.0+incompatible
+	github.com/aws/aws-lambda-go v1.46.0
+	github.com/aws/aws-sdk-go v1.50.11
+	google.golang.org/api v0.162.0
 )
 
-module health
-
-go 1.16
+require (
+	cloud.google.com/go v0.111.0 // indirect
+	cloud.google.com/go/compute v1.23.3 // indirect
+	cloud.google.com/go/compute/metadata v0.2.3 // indirect
+	cloud.google.com/go/iam v1.1.5 // indirect
+	cloud.google.com/go/longrunning v0.5.4 // indirect
+	cloud.google.com/go/storage v1.30.1 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/google/s2a-go v0.1.7 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/googleapis/enterprise-certificate-proxy v0.3.2 // indirect
+	github.com/googleapis/gax-go/v2 v2.12.0 // indirect
+	github.com/jmespath/go-jmespath v0.4.0 // indirect
+	go.opencensus.io v0.24.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.47.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.47.0 // indirect
+	go.opentelemetry.io/otel v1.22.0 // indirect
+	go.opentelemetry.io/otel/metric v1.22.0 // indirect
+	go.opentelemetry.io/otel/trace v1.22.0 // indirect
+	golang.org/x/crypto v0.18.0 // indirect
+	golang.org/x/net v0.20.0 // indirect
+	golang.org/x/oauth2 v0.16.0 // indirect
+	golang.org/x/sync v0.6.0 // indirect
+	golang.org/x/sys v0.16.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/time v0.5.0 // indirect
+	google.golang.org/appengine v1.6.8 // indirect
+	google.golang.org/genproto v0.0.0-20240116215550-a9fa1716bcac // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240102182953-50ed04b92917 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240125205218-1f4bbc51befe // indirect
+	google.golang.org/grpc v1.61.0 // indirect
+	google.golang.org/protobuf v1.32.0 // indirect
+)

health-check/main.go

@@ -1,18 +1,138 @@
 package main
 
 import (
+	"context"
+	"fmt"
+	"log"
+	"os"
+	"net/http"
+	"sync"
+	"time"
+
+	"cloud.google.com/go/firestore"
+	firebase "firebase.google.com/go"
+
 	"github.com/aws/aws-lambda-go/events"
 	"github.com/aws/aws-lambda-go/lambda"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/ssm"
+
+	"google.golang.org/api/iterator"
+	"google.golang.org/api/option"
 )
 
+var wg sync.WaitGroup
+
+/*
+ Setting Constants Map
+*/
+var Constants map[string]string = map[string]string{
+	"ENV_DEVELOPMENT":         "DEVELOPMENT",
+	"ENV_PRODUCTION":          "PRODUCTION",
+	"FIRE_STORE_CRED":         "firestoreCred",
+}
+
+/*
+ Setting Firestore Key for development/production
+*/
+func getFirestoreKey() string {
+	if os.Getenv(("environment")) == Constants["ENV_DEVELOPMENT"] {
+		return os.Getenv(Constants["FIRE_STORE_CRED"])
+	} else if os.Getenv(("environment")) == Constants["ENV_PRODUCTION"] {
+		var parameterName string = Constants["FIRE_STORE_CRED"]
+
+		sess := session.Must(session.NewSessionWithOptions(session.Options{
+			SharedConfigState: session.SharedConfigEnable,
+		}))
+
+		svc := ssm.New(sess)
+
+		results, err := svc.GetParameter(&ssm.GetParameterInput{
+			Name: &parameterName,
+		})
+		if err != nil {
+			log.Fatalf(err.Error())
+		}
+
+		return *results.Parameter.Value
+	} else {
+		return ""
+	}
+}
+
+/*
+ Function to initialize the firestore client
+*/
+func initializeFirestoreClient(ctx context.Context) (*firestore.Client, error) {
+	sa := option.WithCredentialsJSON([]byte(getFirestoreKey()))
+	app, err := firebase.NewApp(ctx, nil, sa)
+	if err != nil {
+		return nil, err
+	}
+
+	client, err := app.Firestore(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	return client, nil
+}
+
+func callProfileHealth(userUrl string) {
+
+	defer wg.Done()
+
+	httpClient := &http.Client{
+		Timeout: 2 * time.Second,
+	}
+	if userUrl[len(userUrl)-1] != '/' {
+		userUrl = userUrl + "/"
+	}
+
+	requestURL := fmt.Sprintf("%shealth", userUrl)
+	req, _ := http.NewRequest("GET", requestURL, nil)
+	_, err1 := httpClient.Do(req)
+	if err1 != nil {
+		fmt.Println("Service not running", err1)
+	}
+}
+
 func handler(request events.APIGatewayProxyRequest) (events.APIGatewayProxyResponse, error) {
+	ctx := context.Background()
+	client, err := initializeFirestoreClient(ctx)
+
+	if err != nil {
+		return events.APIGatewayProxyResponse{}, err
+	}
+
+	totalProfilesCalled := 0
 
+	iter := client.Collection("users").Where("profileStatus", "==", "VERIFIED").Documents(ctx)
+	for {
+		doc, err := iter.Next()
+		if err == iterator.Done {
+			break
+		}
+		if err != nil {
+			log.Fatalf("Failed to iterate: %v", err)
+		}
+		if str, ok := doc.Data()["profileURL"].(string); ok {
+			fmt.Println(str)
+			totalProfilesCalled += 1
+			wg.Add(1)
+			go callProfileHealth(str)
+		}
+	}
+
+	wg.Wait()
+
+	defer client.Close()
 	return events.APIGatewayProxyResponse{
-		Body:       "Awesome, Server health is good!!!",
+		Body:       fmt.Sprintf("Total Profiles called in session is %d", totalProfilesCalled),
 		StatusCode: 200,
 	}, nil
 }
 
 func main() {
 	lambda.Start(handler)
-}
+}

health/go.mod

@@ -0,0 +1,9 @@
+require (
+	github.com/aws/aws-lambda-go v1.28.0
+	github.com/stretchr/testify v1.6.1
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
+
+module health
+
+go 1.16

health/go.sum

@@ -0,0 +1,23 @@
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/aws/aws-lambda-go v1.28.0 h1:fZiik1PZqW2IyAN4rj+Y0UBaO1IDFlsNo9Zz/XnArK4=
+github.com/aws/aws-lambda-go v1.28.0/go.mod h1:jJmlefzPfGnckuHdXX7/80O3BvUUi12XOkbv4w9SGLU=
+github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/urfave/cli/v2 v2.2.0/go.mod h1:SE9GqnLQmjVa0iPEY0f1w3ygNIYcIJ0OKPMoW2caLfQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

health/main.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"github.com/aws/aws-lambda-go/events"
+	"github.com/aws/aws-lambda-go/lambda"
+)
+
+func handler(request events.APIGatewayProxyRequest) (events.APIGatewayProxyResponse, error) {
+
+	return events.APIGatewayProxyResponse{
+		Body:       "Awesome, Server health is good!!!",
+		StatusCode: 200,
+	}, nil
+}
+
+func main() {
+	lambda.Start(handler)
+}

scripts/dev.sh

@@ -1,4 +1,6 @@
-cd health-check
+cd health
+go mod tidy
+cd ../health-check
 go mod tidy
 cd ../verify
 go mod tidy

scripts/test.sh

@@ -1,4 +1,4 @@
-cd health-check
+cd health
 go mod tidy
 go test -v
 npx kill-port 8090

template.yaml

@@ -17,6 +17,24 @@ Globals:
         baseURL: YourBaseAPIURL
 
 Resources:
+  HealthFunction:
+    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
+    Metadata:
+      BuildMethod: go1.x
+    Properties:
+      CodeUri: health/
+      Handler: bootstrap
+      Runtime: provided.al2023
+      Architectures:
+        - x86_64
+      Tracing: Active
+      Events:
+        CatchAll:
+          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
+          Properties:
+            Path: /health
+            Method: GET
+
   HealthCheckFunction:
     Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
     Metadata:
@@ -29,10 +47,15 @@ Resources:
         - x86_64
       Tracing: Active
       Events:
+        ScheduledEvent:
+          Type: Schedule
+          Properties:
+            Schedule: cron(55 17 ? * WED *)
+            Enabled: True
         CatchAll:
           Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
           Properties:
-            Path: /health
+            Path: /health-check
             Method: GET
 
   VerifyFunction: