diff --git a/backend/app/api/api_v1/routers/kintone.py b/backend/app/api/api_v1/routers/kintone.py
index 6564b2a..22c29a8 100644
--- a/backend/app/api/api_v1/routers/kintone.py
+++ b/backend/app/api/api_v1/routers/kintone.py
@@ -6,6 +6,7 @@ import json
 import httpx
 import deepdiff
 import app.core.config as c
+import os
 
 
 kinton_router = r = APIRouter()
@@ -216,6 +217,33 @@ def getkintoneorgs():
     r = httpx.get(url,headers=headers,params=params)
     return r.json()
 
+def uploadkintonefiles(file):
+    upload_files = {'file': open(file,'rb')}
+    headers={c.API_V1_AUTH_KEY:c.API_V1_AUTH_VALUE}
+    data ={'name':'file','filename':os.path.basename(file)}
+    url = f"{c.BASE_URL}/k/v1/file.json"
+    r = httpx.post(url,headers=headers,data=data,files=upload_files)
+    return r.json()
+
+def updateappjscss(app,uploads):
+    dsjs = []
+    dscss = []
+    for upload in uploads:
+        for key in upload:
+             if key.endswith('.js'):
+                 dsjs.append({'type':'FILE','file':{'fileKey':upload[key]}})
+             elif key.endswith('.css'):
+                 dscss.append({'type':'FILE','file':{'fileKey':upload[key]}})
+    ds ={'js':dsjs,'css':dscss}
+    mb ={'js':[],'css':[]}
+    data = {'app':app,'scope':'ALL','desktop':ds,'mobile':mb}
+    headers={c.API_V1_AUTH_KEY:c.API_V1_AUTH_VALUE,"Content-Type": "application/json"}
+    url = f"{c.BASE_URL}{c.API_V1_STR}/preview/app/customize.json"
+    print(data)
+    r = httpx.put(url,headers=headers,data=json.dumps(data))
+    return r.json()
+    
+
 @r.post("/test",)
 async def test(file:UploadFile= File(...),app:str=None):
     if file.filename.endswith('.xlsx'):
@@ -240,6 +268,14 @@ async def test(file:UploadFile= File(...),app:str=None):
     return test 
 
 
+@r.post("/download",)
+async def download(key):
+    headers={c.API_V1_AUTH_KEY:c.API_V1_AUTH_VALUE}
+    params = {"fileKey":key}
+    url = f"{c.BASE_URL}/k/v1/file.json"
+    r = httpx.get(url,headers=headers,params=params)
+    return r.json()
+
 @r.post("/upload",)
 async def upload(files:t.List[UploadFile] = File(...)):
     dataframes = []
@@ -257,6 +293,28 @@ async def upload(files:t.List[UploadFile] = File(...)):
        
     return {"files": [file.filename for file in files]}  
 
+@r.post("/updatejscss")
+async def jscss(app:str,files:t.List[UploadFile] = File(...)):
+    try:
+        jscs=[]
+        for file in files:
+            fbytes = file.file.read()
+            fname = file.filename
+            fpath =  '{}\\{}'.format('Temp',fname)
+            fout = open(fpath,'wb')
+            fout.write(fbytes)
+            fout.close()
+            upload = uploadkintonefiles(fpath)
+            if upload.get('fileKey') != None:
+                jscs.append({ file.filename:upload['fileKey']})
+        appjscs = updateappjscss(app,jscs)
+        if appjscs.get("revision") != None:
+           deoployappfromkintone(app,appjscs["revision"])
+           return appjscs
+    except Exception as e:
+        raise HTTPException(status_code=400, detail=f"Error occurred while update file {file.filename}: {str(e)}")
+     
+
 @r.get("/allapps",)
 async def allapps():
     try:
@@ -284,7 +342,7 @@ async def appfields(app:str):
 async def appprocess(app:str):
     return getprocessfromkintone(app)
 
-@r.get("/alljscs")
+@r.get("/alljscss")
 async def alljscs(app:str):
     headers={c.API_V1_AUTH_KEY:c.API_V1_AUTH_VALUE}
     url = f"{c.BASE_URL}{c.API_V1_STR}/app/customize.json"