From 235622cc1500df737f34870b463fa2e7feeb33f2 Mon Sep 17 00:00:00 2001
From: ddrmin <deepthidamruvan@gmail.com>
Date: Thu, 19 Feb 2026 14:47:51 +0530
Subject: [PATCH 1/3] feat: Add GitHub Actions workflows for CI (linting and
 build) and Docker image building/pushing.

---
 .github/workflows/ci.yml     | 30 ++++++++++++++++++++++++++++++
 .github/workflows/docker.yml |  5 +----
 2 files changed, 31 insertions(+), 4 deletions(-)
 create mode 100644 .github/workflows/ci.yml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..9eece8c
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,30 @@
+name: CI
+
+on:
+  pull_request:
+    branches: [main]
+
+permissions:
+  contents: read
+
+jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v6
+        with:
+          version: latest
+
+      - name: Build check
+        run: go build ./...
diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 6eb8ced..1118621 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -4,8 +4,6 @@ on:
   push:
     branches: [main]
     tags: ["v*"]
-  pull_request:
-    branches: [main]
 
 permissions:
   contents: read
@@ -37,7 +35,6 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Login to Docker Hub
-        if: github.event_name != 'pull_request'
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
@@ -47,7 +44,7 @@ jobs:
         uses: docker/build-push-action@v6
         with:
           context: .
-          push: ${{ github.event_name != 'pull_request' }}
+          push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha

From b3eba216e5eaac2f441237bcde1b48ee042d8245 Mon Sep 17 00:00:00 2001
From: ddrmin <deepthidamruvan@gmail.com>
Date: Thu, 19 Feb 2026 14:51:34 +0530
Subject: [PATCH 2/3] ci: Add GitHub Actions workflow for Go linting and build
 checks.

---
 .github/workflows/ci.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9eece8c..2568d13 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,8 @@ jobs:
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v6
         with:
-          version: latest
+          version: v1.64.8
+          install-mode: goinstall
 
       - name: Build check
         run: go build ./...

From 15ddc414c53a18825ec435256a1221bbf15d3a19 Mon Sep 17 00:00:00 2001
From: ddrmin <deepthidamruvan@gmail.com>
Date: Thu, 19 Feb 2026 14:54:18 +0530
Subject: [PATCH 3/3] feat: Implement core API server with product and order
 endpoints and common JSON utilities.

---
 cmd/api.go            | 4 +++-
 internal/json/json.go | 6 ++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/cmd/api.go b/cmd/api.go
index c207d34..ed3cc69 100644
--- a/cmd/api.go
+++ b/cmd/api.go
@@ -91,7 +91,9 @@ func (app *API) healthCheck(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	w.WriteHeader(http.StatusOK)
-	w.Write([]byte("ok"))
+	if _, err := w.Write([]byte("ok")); err != nil {
+		slog.Error("Failed to write health check response", "error", err)
+	}
 }
 
 type config struct {
diff --git a/internal/json/json.go b/internal/json/json.go
index 563c34e..fd0d4ee 100644
--- a/internal/json/json.go
+++ b/internal/json/json.go
@@ -8,7 +8,10 @@ import (
 func Write(w http.ResponseWriter, status int, data any) {
 	w.Header().Set("Content-Type", "application/json")
 	w.WriteHeader(status)
-	json.NewEncoder(w).Encode(data)
+
+	if err := json.NewEncoder(w).Encode(data); err != nil {
+		http.Error(w, "Failed to encode response", http.StatusInternalServerError)
+	}
 
 }
 
@@ -21,4 +24,3 @@ func Read(r *http.Request, dst any) error {
 
 	return nil
 }
-