Merged in feature/healthmove (pull request #165)

Move health endpoint from OpenAPI spec to direct implementation

* Move health endpoint from OpenAPI spec to direct implementation

- Removed HealthService tag from OpenAPI spec
- Removed /health path from OpenAPI spec
- Removed health.go and health_test.go files from api/queryAPI
- Added direct health endpoint in internal/server/api/listener.go
- Updated validator options to skip validation for the /health endpoint
- Added test for health endpoint in internal/server/api/listener_test.go
- Regenerated API code from the updated OpenAPI spec

internal/server/api/listener.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"log/slog"
 	"net"
+	"net/http"
 	"os"
 	"strconv"
 	"time"
@@ -212,6 +213,11 @@ func New(ctx context.Context, cfg Config) (*Server, error) {
 	e.Use(echoprometheus.NewMiddleware("echo"))
 	e.GET("/metrics", echoprometheus.NewHandler())
 
+	// Health endpoint
+	e.GET("/health", func(c echo.Context) error {
+		return c.NoContent(http.StatusOK)
+	})
+
 	e.Use(getSlogCustomEchoMiddleware(cfg.GetLogger()))
 	e.Use(middleware.Recover())
 	e.Use(middleware.CORS())
@@ -247,7 +253,8 @@ func setOapi(e *echo.Echo, opnapi *openapi3.T) error {
 	validatorOptions := &oapimiddleware.Options{
 		Skipper: func(c echo.Context) bool {
 			return len(c.Path()) >= 8 && (c.Path()[:8] == "/swagger" ||
-				c.Path()[:8] == "/metrics")
+				c.Path()[:8] == "/metrics") ||
+				c.Path() == "/health"
 		},
 		Options: openapi3filter.Options{
 			AuthenticationFunc: openapi3filter.NoopAuthenticationFunc,

internal/server/api/listener_test.go

@@ -82,6 +82,29 @@ func TestGetRouter(t *testing.T) {
 	assert.Equal(t, r, c.Router)
 }
 
+func TestHealthEndpoint(t *testing.T) {
+	// Create a new Echo instance
+	e := echo.New()
+
+	// Register health endpoint
+	e.GET("/health", func(c echo.Context) error {
+		return c.NoContent(http.StatusOK)
+	})
+
+	// Create a request to the health endpoint
+	req := httptest.NewRequest(http.MethodGet, "/health", nil)
+	rec := httptest.NewRecorder()
+
+	// Serve the request
+	e.ServeHTTP(rec, req)
+
+	// Assert the response status code
+	assert.Equal(t, http.StatusOK, rec.Code)
+
+	// Assert the response body is empty
+	assert.Empty(t, rec.Body.String())
+}
+
 func TestGetSlogCustomEchoMiddleware(t *testing.T) {
 	l := &logger.TestLogger{
 		T: t,