Implement GET /users endpoint for APIv4 (#5277)

api4/params.go

@@ -5,10 +5,17 @@ package api4
 
 import (
 	"net/http"
+	"strconv"
 
 	"github.com/gorilla/mux"
 )
 
+const (
+	PAGE_DEFAULT     = 0
+	PER_PAGE_DEFAULT = 60
+	PER_PAGE_MAXIMUM = 200
+)
+
 type ApiParams struct {
 	UserId    string
 	TeamId    string
@@ -18,6 +25,8 @@ type ApiParams struct {
 	CommandId string
 	HookId    string
 	EmojiId   string
+	Page      int
+	PerPage   int
 }
 
 func ApiParamsFromRequest(r *http.Request) *ApiParams {
@@ -57,5 +66,19 @@ func ApiParamsFromRequest(r *http.Request) *ApiParams {
 		params.EmojiId = val
 	}
 
+	if val, err := strconv.Atoi(r.URL.Query().Get("page")); err != nil {
+		params.Page = PAGE_DEFAULT
+	} else {
+		params.Page = val
+	}
+
+	if val, err := strconv.Atoi(r.URL.Query().Get("per_page")); err != nil {
+		params.PerPage = PER_PAGE_DEFAULT
+	} else if val > PER_PAGE_MAXIMUM {
+		params.PerPage = PER_PAGE_MAXIMUM
+	} else {
+		params.PerPage = val
+	}
+
 	return params
 }