add api route, but not use

routes/api/api.go

@@ -0,0 +1 @@
+package api

routes/api/files.go

@@ -0,0 +1,68 @@
+package api
+
+import (
+	"io/ioutil"
+	"strconv"
+
+	"git.trj.tw/golang/go-file-serve/module/config"
+	"git.trj.tw/golang/go-file-serve/module/context"
+)
+
+// GetFileList -
+func GetFileList(c *context.Context) {
+	var err error
+	limit := -1
+	skip := 0
+	if str, ok := c.GetQuery("limit"); ok && len(str) > 0 {
+		limit, err = strconv.Atoi(str)
+		if err != nil {
+			limit = -1
+		}
+		if limit <= 0 {
+			limit = -1
+		}
+	}
+	if str, ok := c.GetQuery("skip"); ok && len(str) > 0 {
+		skip, err = strconv.Atoi(str)
+		if err != nil {
+			skip = 0
+		}
+		if skip < 0 {
+			skip = 0
+		}
+	}
+
+	conf := config.GetConf()
+	if conf == nil {
+		c.ServerError()
+		return
+	}
+
+	fileInfo, err := ioutil.ReadDir(conf.FilePath)
+	if err != nil {
+		c.ServerError()
+		return
+	}
+
+	totalItem := len(fileInfo)
+
+	if skip < totalItem {
+		if limit > 0 {
+			fileInfo = fileInfo[skip : skip+limit]
+		} else {
+			fileInfo = fileInfo[skip:]
+		}
+	} else {
+		fileInfo = nil
+	}
+
+	resArr := make([]string, 0, len(fileInfo))
+	for _, v := range fileInfo {
+		resArr = append(resArr, v.Name())
+	}
+
+	c.Success(map[string]interface{}{
+		"files": resArr,
+		"total": totalItem,
+	})
+}

routes/routes.go

@@ -1,12 +1,15 @@
 package routes
 
 import (
- "github.com/gin-gonic/gin"
- "net/http"
+	"net/http"
+
+	"git.trj.tw/golang/go-file-serve/module/context"
+	"git.trj.tw/golang/go-file-serve/routes/api"
+	"github.com/gin-gonic/gin"
 )
 
 // NewEngine -
-func NewEngine () *gin.Engine {
+func NewEngine() *gin.Engine {
 	engine := gin.New()
 	engine.Use(gin.Logger())
 	engine.Use(gin.Recovery())
@@ -16,9 +19,14 @@ func NewEngine () *gin.Engine {
 
 // SetRoutes -
 func SetRoutes(r *gin.Engine) {
-	r.GET("/", func (c *gin.Context) {
+	r.GET("/", func(c *gin.Context) {
 		c.JSON(http.StatusOK, gin.H{
 			"message": "success",
 		})
 	})
+
+	apiGroup := r.Group("/api")
+	{
+		apiGroup.GET("/files", context.PatchContext(api.GetFileList))
+	}
 }