delete uuid.lua redis.lua upload.lua

file_upload/upload_image.lua

@@ -1,7 +1,7 @@
 -- Require lua modules
-local upload    = require "upload"
-local uuid      = require "uuid"
-local redis     = require "redis"
+local upload    = require "resty/upload"
+local uuid      = require "resty.jit-uuid"
+local redis     = require "resty.redis"
 local cjson     = require "cjson"
 ---------------------------------------------------------------------------------------
 
@@ -30,6 +30,10 @@ if not form then
     ngx.exit(500)
 end
 
+---- Automatic seeding with os.time(), LuaSocket, or ngx.time()
+uuid.seed()
+uuid()
+
 ---- Redis init
 ------ Connect to redis
 local redis_task_database = redis:new()
@@ -92,7 +96,7 @@ while true do
                     -- Save upload file
                     if upload_image_filename then
                         -- Save file name with generate uuid
-                        save_image_filename = uuid:generate() -- Generate save filename uuid
+                        save_image_filename = uuid:generate_v4() -- Generate save filename uuid
                         save_image_filename = save_image_filename .. '.' .. upload_image_filename:match(".+%.(%w+)$")
                         file_to_save = io.open(save_upload_file_path .. save_image_filename, "w+")
 
@@ -154,7 +158,7 @@ if ret_save then
 
     -- Communicate with front end
     ---- Generate task uuid
-    local task_uuid = uuid.generate();
+    local task_uuid = uuid.generate_v4();
     ---------------------------------------------------------------------------------------
 
     -- Construct {key: task_id | value: [images] } in json