# HG changeset patch
# Node ID 276d77c31f00
# Parent  da5e9416581b
diff --git a/api/api.go b/api/api.go
new file mode 100644
--- /dev/null
+++ b/api/api.go
@@ -0,0 +1,12 @@
+package api
+
+import (
+	"github.com/gin-gonic/gin"
+	"hg.sr.ht/~grim/cerestial/api/v1"
+)
+
+func Router(router *gin.RouterGroup) {
+	api := router.Group("/api")
+
+	v1.V1Router(api)
+}
diff --git a/api/v1/moon.go b/api/v1/moon.go
new file mode 100644
--- /dev/null
+++ b/api/v1/moon.go
@@ -0,0 +1,28 @@
+package v1
+
+import (
+	"math"
+	"net/http"
+	"time"
+
+	"github.com/dyindude/moonphase"
+	"github.com/gin-gonic/gin"
+)
+
+func getMoonInfo(ctx *gin.Context) {
+	moon := moonphase.New(time.Now())
+
+	ctx.JSON(http.StatusOK, gin.H{
+		"moon": gin.H{
+			"phase":        moon.PhaseName(),
+			"illumination": math.Round(100000*moon.Illumination()) / 1000,
+			"age":          math.Round(100*moon.Age()) / 100,
+			"distance_km":  moon.Distance(),
+			"zodiac": map[string]any{
+				"tropical": moon.ZodiacSignTropical(),
+				// sidereal has to be last because it modifies the moon object.
+				"sidereal": moon.ZodiacSignSidereal(),
+			},
+		},
+	})
+}
diff --git a/api/v1/routes.go b/api/v1/routes.go
new file mode 100644
--- /dev/null
+++ b/api/v1/routes.go
@@ -0,0 +1,11 @@
+package v1
+
+import (
+	"github.com/gin-gonic/gin"
+)
+
+func V1Router(router *gin.RouterGroup) {
+	v1 := router.Group("/v1")
+
+	v1.GET("/moon", getMoonInfo)
+}
diff --git a/go.mod b/go.mod
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,28 @@
 
 go 1.19
 
-require github.com/dyindude/moonphase v0.0.0-20221027024102-d432dfb9acbc
+require (
+	github.com/dyindude/moonphase v0.0.0-20221027024102-d432dfb9acbc
+	github.com/gin-gonic/gin v1.8.1
+)
+
+require (
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.14.0 // indirect
+	github.com/go-playground/universal-translator v0.18.0 // indirect
+	github.com/go-playground/validator/v10 v10.10.0 // indirect
+	github.com/goccy/go-json v0.9.7 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/leodido/go-urn v1.2.1 // indirect
+	github.com/mattn/go-isatty v0.0.14 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.1 // indirect
+	github.com/ugorji/go/codec v1.2.7 // indirect
+	golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 // indirect
+	golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 // indirect
+	golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069 // indirect
+	golang.org/x/text v0.3.6 // indirect
+	google.golang.org/protobuf v1.28.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+)
diff --git a/go.sum b/go.sum
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,88 @@
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+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/dyindude/moonphase v0.0.0-20221027024102-d432dfb9acbc h1:WZwfrZhK2XywDgNcAgcyYMJNrec94MfRD3+CYCenqxg=
 github.com/dyindude/moonphase v0.0.0-20221027024102-d432dfb9acbc/go.mod h1:2M2LoYxAj/Tfhu//CRJtkyhYS8Ze7XujaPNmKVuOOB4=
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diff --git a/main.go b/main.go
--- a/main.go
+++ b/main.go
@@ -1,44 +1,24 @@
 package main
 
 import (
-	"encoding/json"
-	"math"
 	"net/http"
-	"time"
 
-	"github.com/dyindude/moonphase"
+	"github.com/gin-gonic/gin"
+	"hg.sr.ht/~grim/cerestial/api"
 )
 
-func moon_handler(w http.ResponseWriter, r *http.Request) {
-	moon := moonphase.New(time.Now())
-	data := map[string]any{
-		"moon": map[string]any{
-			"phase":        moon.PhaseName(),
-			"illumination": math.Round(100000*moon.Illumination()) / 1000,
-			"age":          math.Round(100*moon.Age()) / 100,
-			"distance_km":  moon.Distance(),
-			"zodiac": map[string]any{
-				"tropical": moon.ZodiacSignTropical(),
-				// sidereal has to be last because it modifies the moon object.
-				"sidereal": moon.ZodiacSignSidereal(),
-			},
-		},
-	}
+func main() {
+	router := gin.Default()
+
+	root := router.Group("/")
 
-	w.Header().Set("Content-Type", "application/json")
-	json.NewEncoder(w).Encode(data)
-}
-
-func main() {
-	mux := http.NewServeMux()
+	root.GET("/health", func(ctx *gin.Context) {
+		ctx.JSON(http.StatusOK, gin.H{
+			"status": "ok",
+		})
+	})
 
-	api := http.NewServeMux()
-	mux.Handle("/api/", http.StripPrefix("/api", api))
+	api.Router(root)
 
-	v1 := http.NewServeMux()
-	api.Handle("/v1/", http.StripPrefix("/v1", v1))
-
-	v1.Handle("/moon", http.HandlerFunc(moon_handler))
-
-	http.ListenAndServe(":3000", mux)
+	router.Run(":3000")
 }
