diff --git a/config.json b/config.json
index 049814b..aaae890 100644
--- a/config.json
+++ b/config.json
@@ -1,4 +1,11 @@
 {
+    "database": {
+        "name": "stardew_sync",
+        "host": "127.0.0.1",
+        "port": 27017,
+        "user": null,
+        "password": null
+    },
     "locations": {
         "data": "data"
     },
diff --git a/data/api_keys.json b/data/api_keys.json
deleted file mode 100644
index 0637a08..0000000
--- a/data/api_keys.json
+++ /dev/null
@@ -1 +0,0 @@
-[]
\ No newline at end of file
diff --git a/data/expired_keys.json b/data/expired_keys.json
deleted file mode 100644
index 0637a08..0000000
--- a/data/expired_keys.json
+++ /dev/null
@@ -1 +0,0 @@
-[]
\ No newline at end of file
diff --git a/extensions/apikey.py b/extensions/apikey.py
index 99a6c37..2af6f0b 100644
--- a/extensions/apikey.py
+++ b/extensions/apikey.py
@@ -1,9 +1,8 @@
-from os import path
 from uuid import uuid4
-from shutil import move
 from models.apikey import APIKeyUpdated
 from modules.app import app, get_api_key
-from modules.utils import configGet, jsonLoad, jsonSave
+from modules.security import passEncode
+from modules.database import col_apikeys, col_expired
 from fastapi import Depends
 from fastapi.responses import UJSONResponse
 from fastapi.openapi.models import APIKey
@@ -11,21 +10,9 @@ from fastapi.openapi.models import APIKey
 @app.put("/apikey", response_class=UJSONResponse, response_model=APIKeyUpdated, description="Update API key")
 async def apikey_put(apikey: APIKey = Depends(get_api_key)):
 
-    keys_valid = jsonLoad(path.join(configGet("data", "locations"), "api_keys.json"))
-    keys_expired = jsonLoad(path.join(configGet("data", "locations"), "expired_keys.json"))
-
     new_key = str(uuid4())
-
-    keys_valid.remove(apikey)
-    keys_valid.append(new_key)
-    
-    keys_expired.append(apikey)
-
-    jsonSave(keys_valid, path.join(configGet("data", "locations"), "api_keys.json"))
-    jsonSave(keys_expired, path.join(configGet("data", "locations"), "expired_keys.json"))
-
-    if path.exists(path.join(configGet("data", "locations"), apikey)): # type: ignore
-        move(path.join(configGet("data", "locations"), apikey), path.join(configGet("data", "locations"), new_key)) # type: ignore
+    col_apikeys.find_one_and_replace({"hash": passEncode(apikey)}, {"hash": passEncode(new_key)})
+    col_expired.insert_one({"hash": passEncode(apikey)})
 
     return UJSONResponse({"apikey": new_key})
 
diff --git a/extensions/devices.py b/extensions/devices.py
index ff1409f..7b2f6a9 100644
--- a/extensions/devices.py
+++ b/extensions/devices.py
@@ -1,21 +1,72 @@
-# from modules.app import app, get_api_key
-# from modules.utils import configGet, jsonLoad
-# from fastapi import HTTPException, Depends
-# from fastapi.responses import UJSONResponse, FileResponse
-# from fastapi.openapi.models import APIKey
+from modules.app import app, get_api_key, user_by_key
+from modules.database import col_devices, col_saves
+from fastapi import HTTPException, Depends
+from fastapi.responses import UJSONResponse, Response
+from fastapi.openapi.models import APIKey
+from starlette.status import HTTP_204_NO_CONTENT, HTTP_404_NOT_FOUND, HTTP_409_CONFLICT
 
-# @app.get("/devices", response_class=UJSONResponse, description="Get all devices")
-# async def devices_get(apikey: APIKey = Depends(get_api_key)):
-#     pass
+@app.get("/devices", response_class=UJSONResponse, description="Get all devices")
+async def devices_get(apikey: APIKey = Depends(get_api_key)):
 
-# @app.get("/devices/{name}", response_class=UJSONResponse, description="Get game saves from device by name")
-# async def devices_get_by_name(name: str, apikey: APIKey = Depends(get_api_key)):
-#     pass
+    devices = list(col_devices.find({"user": user_by_key(apikey)}))
 
-# @app.post("/devices", response_class=UJSONResponse, description="Create new device")
-# async def devices_post(name: str, apikey: APIKey = Depends(get_api_key)):
-#     pass
+    if len(devices) == 0:
+        raise HTTPException(HTTP_404_NOT_FOUND, detail="Could not find any devices.")
 
-# @app.put("/devices/{name}", response_class=UJSONResponse, description="Update name of the existing device")
-# async def devices_put(name: str, apikey: APIKey = Depends(get_api_key)):
-#     pass
\ No newline at end of file
+    output = []
+
+    for device in devices:
+        out_device = device
+        del out_device["_id"]
+        del out_device["user"]
+        output.append(out_device)
+
+    return UJSONResponse(output)
+
+@app.get("/devices/{name}", response_class=UJSONResponse, description="Get information about device by name")
+async def devices_get_by_name(name: str, apikey: APIKey = Depends(get_api_key)):
+    device = col_devices.find_one({"user": user_by_key(apikey), "name": name})
+    if device is not None:
+        del device["_id"]
+        return UJSONResponse(device)
+    else:
+        raise HTTPException(HTTP_404_NOT_FOUND, detail="Could not find device with that name.")
+
+@app.delete("/devices/{name}", description="Get information about device by name")
+async def devices_delete_by_name(name: str, apikey: APIKey = Depends(get_api_key)):
+    user = user_by_key(apikey)
+    device = col_devices.find_one({"user": user, "name": name})
+    if device is not None:
+        col_devices.find_one_and_delete({"user": user, "name": name})
+        col_saves.delete_many({"user": user, "device": name})
+        return Response(status_code=HTTP_204_NO_CONTENT)
+    else:
+        raise HTTPException(HTTP_404_NOT_FOUND, detail="Could not find device with that name.")
+
+@app.post("/devices", response_class=UJSONResponse, description="Create new device")
+async def devices_post(name: str, os: str, apikey: APIKey = Depends(get_api_key)):
+
+    user = user_by_key(apikey)
+
+    if col_devices.find_one({"user": user, "name": name}) is not None:
+        raise HTTPException(HTTP_409_CONFLICT, detail="Device with this name already exists.")
+
+    col_devices.insert_one({"user": user, "name": name, "os": os, "last_save": 0})
+
+    return Response(status_code=HTTP_204_NO_CONTENT)
+
+@app.patch("/devices/{name}", description="Update name of the existing device")
+async def devices_patch(name: str, new_name: str, os: str, apikey: APIKey = Depends(get_api_key)):
+    
+    user = user_by_key(apikey)
+
+    if col_devices.find_one({"user": user, "name": name}) is None:
+        raise HTTPException(HTTP_404_NOT_FOUND, detail="Could not find device with that name.")
+
+    if col_devices.find_one({"user": user, "name": new_name}) is not None:
+        raise HTTPException(HTTP_409_CONFLICT, detail="Device with this name already exists.")
+
+    col_devices.find_one_and_update({"user": user, "name": name}, {"$set": {"name": new_name, "os": os}})
+    col_saves.update_many({"user": user, "device": name}, {"$set": {"device": new_name}})
+
+    return Response(status_code=HTTP_204_NO_CONTENT)
\ No newline at end of file
diff --git a/extensions/saves.py b/extensions/saves.py
index 6f68ea6..9f9e852 100644
--- a/extensions/saves.py
+++ b/extensions/saves.py
@@ -1,12 +1,14 @@
 from datetime import datetime
 from io import BytesIO
-from os import listdir, makedirs, path, rmdir, sep
-from typing import Dict, List
+from urllib.parse import quote_plus
+from os import path, remove
+from typing import Dict, List, Union
 from zipfile import ZipFile
 from xmltodict import parse
 from models.saves import StardewSave
-from modules.app import app, get_api_key
-from modules.utils import configGet, jsonLoad, jsonSave
+from modules.app import app, get_api_key, user_by_key
+from modules.utils import saveFile
+from modules.database import col_devices, col_saves
 from fastapi import HTTPException, Depends, UploadFile
 from fastapi.responses import UJSONResponse, FileResponse, Response
 from fastapi.openapi.models import APIKey
@@ -26,7 +28,9 @@ def zipfiles(filenames, save_name: str) -> Response:
         fdir, fname = path.split(fpath)
 
         # Add file, at correct path
-        zf.write(fpath, fname)
+        for entry in (list(col_saves.find({"files.save.uuid": fname})) + list(col_saves.find({"files.saveinfo.uuid": fname}))):
+            filename = entry["files"]["save"]["name"] if (entry["files"]["save"]["uuid"] == fname) else entry["files"]["saveinfo"]["name"]
+        zf.write(fpath, filename)
 
     # Must close zip for all contents to be written
     zf.close()
@@ -36,78 +40,92 @@ def zipfiles(filenames, save_name: str) -> Response:
         s.getvalue(),
         media_type="application/x-zip-compressed",
         headers={
-            'Content-Disposition': f'attachment;filename={zip_filename}'
+            'Content-Disposition': f'attachment;filename={quote_plus(zip_filename)}'
         }
     )
 
 
 @app.get("/saves", response_class=UJSONResponse, response_model=Dict[str, StardewSave], description="Get all available game saves")
 async def saves_get(apikey: APIKey = Depends(get_api_key)):
-    save_path = path.join(configGet("data", "locations"), "users", apikey) # type: ignore
-    if path.exists(save_path):
-        output = {}
-        for id in listdir(save_path):
-            print("Iterating through", save_path, "on", id)
-            for dir in listdir(path.join(save_path, id)):
-                print("Iterating through", path.join(save_path, id, dir), "on", dir)
-                d = path.join(save_path, id, dir)
-                if path.isdir(d):
-                    if str(id) not in output:
-                        output[str(id)] = []
-                    output[str(id)].append(jsonLoad(path.join(configGet("data", "locations"), "users", apikey, id, dir, "index.json"))) # type: ignore
-        return UJSONResponse(output)
-    else:
+
+    saves_entries = list(col_saves.find({"user": user_by_key(apikey)}))
+
+    if len(saves_entries) == 0:
         raise HTTPException(HTTP_404_NOT_FOUND, detail="Could not find any saves.")
 
+    output = []
+
+    for entry in saves_entries:
+        out_entry = entry
+        del out_entry["_id"]
+        del out_entry["user"]
+        del out_entry["files"]
+        output.append(out_entry)
+
+    return UJSONResponse(output)
+
 
 @app.get("/saves/{id}", response_class=UJSONResponse, response_model=List[StardewSave], description="Get game saves by name")
-async def saves_get_by_id(id: str, apikey: APIKey = Depends(get_api_key)):
-    save_path = path.join(configGet("data", "locations"), "users", apikey, id) # type: ignore
-    if path.exists(save_path):
-        output = []
-        for dir in listdir(save_path):
-            d = path.join(save_path, dir)
-            if path.isdir(d):
-                output.append(jsonLoad(path.join(configGet("data", "locations"), "users", apikey, id, dir, "index.json"))) # type: ignore
-        return UJSONResponse(output)
+async def saves_get_by_id(id: int, device: Union[str, None] = None, apikey: APIKey = Depends(get_api_key)):
+
+    saves_entries = list(col_saves.find({"id": id})) if device is None else list(col_saves.find({"id": id, "device": device}))
+    
+    if len(saves_entries) == 0:
+        raise HTTPException(HTTP_404_NOT_FOUND, detail="Could not find save with such id.")
+
+    output = []
+
+    for entry in saves_entries:
+        out_entry = entry
+        del out_entry["_id"]
+        del out_entry["files"]
+        del out_entry["user"]
+        output.append(out_entry)
+
+    return UJSONResponse(output)
+
+
+@app.get("/saves/{id}/{save_date}", response_class=UJSONResponse, response_model=List[StardewSave], description="Get game saves by name")
+async def saves_get_by_both_ids(id: int, save_date: int, apikey: APIKey = Depends(get_api_key)):
+    saves_entry = col_saves.find_one({"user": user_by_key(apikey), "id": id, "date": save_date})
+    if saves_entry is not None:
+        del saves_entry["_id"]
+        del saves_entry["files"]
+        return UJSONResponse(saves_entry)
     else:
         raise HTTPException(HTTP_404_NOT_FOUND, detail="Could not find save with such id.")
 
 
 @app.delete("/saves/{id}", description="Get game saves by name")
-async def saves_delete_by_id(id: str, apikey: APIKey = Depends(get_api_key)):
-    save_path = path.join(configGet("data", "locations"), "users", apikey, id) # type: ignore
-    if path.exists(save_path):
-        rmdir(save_path)
+async def saves_delete_by_id(id: int, apikey: APIKey = Depends(get_api_key)):
+    user = user_by_key(apikey)
+    if col_saves.count_documents({"user": user, "id": id}) > 0:
+        saves_entries = list(col_saves.find({"user": user, "id": id}))
+        for entry in saves_entries:
+            remove(entry["files"]["save"]["path"])
+            remove(entry["files"]["saveinfo"]["path"])
+        col_saves.delete_many({"user": user, "id": id})
         return Response(status_code=HTTP_204_NO_CONTENT)
     else:
         raise HTTPException(HTTP_404_NOT_FOUND, detail="Could not find save with such id.")
 
 
-@app.delete("/saves/{id}/{save_date}", response_class=UJSONResponse, response_model=List[StardewSave], description="Get game saves by name")
-async def saves_delete_by_both_ids(id: str, save_date: str, apikey: APIKey = Depends(get_api_key)):
-    save_path = path.join(configGet("data", "locations"), "users", apikey, id, save_date) # type: ignore
-    if path.exists(save_path):
-        rmdir(save_path)
+@app.delete("/saves/{id}/{save_date}", response_class=UJSONResponse, description="Get game saves by name")
+async def saves_delete_by_both_ids(id: int, save_date: int, apikey: APIKey = Depends(get_api_key)):
+    saves_entry = col_saves.find_one_and_delete({"id": id, "date": save_date})
+    if saves_entry is not None:
+        remove(saves_entry["files"]["save"]["path"])
+        remove(saves_entry["files"]["saveinfo"]["path"])
         return Response(status_code=HTTP_204_NO_CONTENT)
     else:
         raise HTTPException(HTTP_404_NOT_FOUND, detail="Could not find save with such id.")
 
 
-@app.get("/saves/{id}/{save_date}", response_class=UJSONResponse, response_model=List[StardewSave], description="Get game saves by name")
-async def saves_get_by_both_ids(id: str, save_date: str, apikey: APIKey = Depends(get_api_key)):
-    save_path = path.join(configGet("data", "locations"), "users", apikey, id, save_date) # type: ignore
-    if path.exists(save_path):
-        return UJSONResponse(jsonLoad(save_path+sep+"index.json"))
-    else:
-        raise HTTPException(HTTP_404_NOT_FOUND, detail="Could not find save with such id.")
-
-
 @app.get("/saves/{id}/{save_date}/download", response_class=FileResponse, description="Get game save as .svsave file by its id and save date")
-async def saves_download(id: str, save_date: str, apikey: APIKey = Depends(get_api_key)):
-    if path.exists(path.join(configGet("data", "locations"), "users", apikey, id, save_date)): # type: ignore
-        save_path = path.join(configGet("data", "locations"), "users", apikey, id, save_date) # type: ignore
-        return zipfiles([f"{save_path}{sep}{id}", f"{save_path}{sep}SaveGameInfo", f"{save_path}{sep}index.json"], save_name=f"{id}_{save_date}")
+async def saves_download(id: int, save_date: int, apikey: APIKey = Depends(get_api_key)):
+    saves_entry = col_saves.find_one({"user": user_by_key(apikey), "id": id, "date": save_date})
+    if saves_entry is not None: # type: ignore
+        return zipfiles([saves_entry["files"]["save"]["path"], saves_entry["files"]["saveinfo"]["path"]], save_name=f'{saves_entry["data"]["farmer"]}_{saves_entry["id"]}')
     else:
         raise HTTPException(HTTP_404_NOT_FOUND, detail="Could not find save with such id.")
 
@@ -115,6 +133,8 @@ async def saves_download(id: str, save_date: str, apikey: APIKey = Depends(get_a
 @app.post("/saves", response_class=UJSONResponse, response_model=StardewSave, description="Upload new save")
 async def saves_post(device: str, files: List[UploadFile], apikey: APIKey = Depends(get_api_key)):
 
+    user = user_by_key(apikey)
+
     error_return = HTTPException(HTTP_406_NOT_ACCEPTABLE, detail="You must provide two files: save file and SaveGameInfo for that save")
 
     if len(files) != 2:
@@ -123,48 +143,67 @@ async def saves_post(device: str, files: List[UploadFile], apikey: APIKey = Depe
     if "SaveGameInfo" not in [file.filename for file in files]:
         return error_return
 
-    save_info = save_data = save_info_file = save_data_file = None
+    if col_devices.find_one({"user": user, "name": device}) is None:
+        raise HTTPException(HTTP_404_NOT_FOUND, detail="Could not find device with that name.")
+
+    save_info = save_data = save_info_file = save_data_filename = save_data_file = save_info_file_id = save_data_file_id = None
 
     for file in files:
         if file.filename == "SaveGameInfo":
             save_info_file = await file.read()
+            save_info_file_id = saveFile(save_info_file)
             save_info = parse(save_info_file.decode("utf-8"))
             if "Farmer" not in save_info:
                 return error_return
         else:
+            save_data_filename = file.filename
             save_data_file = await file.read()
+            save_data_file_id = saveFile(save_data_file)
             save_data = parse(save_data_file.decode("utf-8"))
             if "SaveGame" not in save_data:
                 return error_return
 
-    if save_info is None or save_data is None or save_info_file is None or save_data_file is None:
+    if save_info is None or save_data is None or save_info_file is None or save_data_filename is None or save_data_file is None or save_info_file_id is None or save_data_file_id is None:
         return error_return
 
-    now = datetime.now()
-    save_date = now.strftime("%Y%m%d_%H%M%S")
-
-    makedirs(path.join(configGet("data", "locations"), "users", apikey, save_data["SaveGame"]["uniqueIDForThisGame"], save_date), exist_ok=True) # type: ignore
-
-    with open(path.join(configGet("data", "locations"), "users", apikey, save_data["SaveGame"]["uniqueIDForThisGame"], save_date, "SaveGameInfo"), "wb") as f: # type: ignore
-        f.write(save_info_file)
-
-    with open(path.join(configGet("data", "locations"), "users", apikey, save_data["SaveGame"]["uniqueIDForThisGame"], save_date, save_data["SaveGame"]["uniqueIDForThisGame"]), "wb") as f: # type: ignore
-        f.write(save_data_file)
+    save_date = int(datetime.utcnow().timestamp())
 
     index = {
         "id": int(save_data["SaveGame"]["uniqueIDForThisGame"]),
+        "user": user,
         "device": device,
-        "farmer": save_info["Farmer"]["name"],
-        "year": int(save_info["Farmer"]["yearForSaveGame"]),
-        "season": int(save_info["Farmer"]["seasonForSaveGame"]),
-        "day": int(save_info["Farmer"]["dayOfMonthForSaveGame"]),
-        "money": int(save_info["Farmer"]["money"]),
-        "played": int(save_info["Farmer"]["millisecondsPlayed"]),
-        "save_time": int(save_info["Farmer"]["saveTime"]),
-        "save_date": save_date,
-        "uploaded": now.isoformat()
+        "date": save_date,
+        "data": {
+            "farmer": save_info["Farmer"]["name"],
+            "money": int(save_info["Farmer"]["money"]),
+            "played": int(save_info["Farmer"]["millisecondsPlayed"]),
+            "save_time": int(save_info["Farmer"]["saveTime"]),
+            "year": int(save_info["Farmer"]["yearForSaveGame"]),
+            "season": int(save_info["Farmer"]["seasonForSaveGame"]),
+            "day": int(save_info["Farmer"]["dayOfMonthForSaveGame"])
+        },
+        "files": {
+            "save": {
+                "name": save_data_filename,
+                "uuid": save_data_file_id[0],
+                "path": save_data_file_id[1]
+            },
+            "saveinfo": {
+                "name": "SaveGameInfo",
+                "uuid": save_info_file_id[0],
+                "path": save_info_file_id[1]
+            }
+        }
     }
+    
+    col_saves.insert_one(index)
 
-    jsonSave(index, path.join(configGet("data", "locations"), "users", apikey, save_data["SaveGame"]["uniqueIDForThisGame"], save_date, "index.json")) # type: ignore
+    del save_info, save_data
+
+    del index["user"]
+    del index["files"]
+    del index["_id"]
+
+    col_devices.find_one_and_update({"user": user, "name": device}, {"$set": {"last_save": save_date}})
 
     return UJSONResponse(index)
\ No newline at end of file
diff --git a/models/devices.py b/models/devices.py
index 796bb0c..d643b0f 100644
--- a/models/devices.py
+++ b/models/devices.py
@@ -1 +1,7 @@
-# from pydantic import BaseModel
\ No newline at end of file
+from pydantic import BaseModel
+
+class Device(BaseModel):
+    user: str
+    name: str
+    os: str
+    last_save: int
\ No newline at end of file
diff --git a/models/saves.py b/models/saves.py
index 9f24ab8..5a96e50 100644
--- a/models/saves.py
+++ b/models/saves.py
@@ -1,14 +1,16 @@
 from pydantic import BaseModel
 
+class StardewSaveData(BaseModel):
+    farmer: str
+    money: int
+    played: int
+    save_time: int
+    year: int
+    season: int
+    day: int
+
 class StardewSave(BaseModel):
     id: int
     device: str
-    farmer: str
-    year: int
-    season: int
-    day: int
-    money: int
-    played: int
-    save_time: int
-    save_date: str
-    uploaded: str
\ No newline at end of file
+    date: int
+    data: StardewSaveData
\ No newline at end of file
diff --git a/modules/app.py b/modules/app.py
index 02184d0..59b4618 100644
--- a/modules/app.py
+++ b/modules/app.py
@@ -1,11 +1,14 @@
 from os import path
+from typing import Union
 from fastapi import FastAPI, Security, HTTPException
 from starlette.status import HTTP_401_UNAUTHORIZED, HTTP_403_FORBIDDEN
 from fastapi.security import APIKeyQuery, APIKeyHeader, APIKeyCookie
+from fastapi.openapi.models import APIKey
 from fastapi.openapi.docs import get_swagger_ui_html, get_redoc_html
 from starlette.status import HTTP_401_UNAUTHORIZED
-
 from modules.utils import configGet, jsonLoad
+from modules.security import passEncode
+from modules.database import col_apikeys, col_expired
 
 app = FastAPI(title="Stardew Sync", docs_url=None, redoc_url=None, version="0.1")
 
@@ -40,11 +43,8 @@ async def get_api_key(
     api_key_cookie: str = Security(api_key_cookie),
 ) -> str:
 
-    keys = get_all_api_keys()
-    expired = get_all_expired_keys()
-
     def is_valid(key):
-        return True if key in keys else False
+        return True if col_apikeys.find_one({"hash": passEncode(key)}) is not None else False
 
     if is_valid(api_key_query):
         return api_key_query
@@ -53,11 +53,15 @@ async def get_api_key(
     elif is_valid(api_key_cookie):
         return api_key_cookie
     else:
-        if (api_key_query in expired) or (api_key_header in expired) or (api_key_cookie in expired):
+        if (col_expired.find_one({"hash": passEncode(api_key_query)}) is not None) or (col_expired.find_one({"hash": passEncode(api_key_header)}) is not None) or (col_expired.find_one({"hash": passEncode(api_key_cookie)}) is not None):
             raise HTTPException(status_code=HTTP_403_FORBIDDEN, detail=configGet("key_expired", "messages"))
         else:
             raise HTTPException(status_code=HTTP_401_UNAUTHORIZED, detail=configGet("key_invalid", "messages"))
 
+def user_by_key(apikey: Union[str, APIKey]) -> Union[str, None]:
+    db_key = col_apikeys.find_one({"hash": passEncode(apikey)})
+    return db_key["user"] if db_key is not None else None
+
 @app.get("/docs", include_in_schema=False)
 async def custom_swagger_ui_html():
     return get_swagger_ui_html(
diff --git a/modules/database.py b/modules/database.py
new file mode 100644
index 0000000..ef1d1c0
--- /dev/null
+++ b/modules/database.py
@@ -0,0 +1,34 @@
+from modules.utils import configGet
+from pymongo import MongoClient
+
+db_config = configGet("database")
+
+if db_config["user"] is not None and db_config["password"] is not None:
+    con_string = 'mongodb://{0}:{1}@{2}:{3}/{4}'.format(
+        db_config["user"],
+        db_config["password"],
+        db_config["host"],
+        db_config["port"],
+        db_config["name"]
+    )
+else:
+    con_string = 'mongodb://{0}:{1}/{2}'.format(
+        db_config["host"],
+        db_config["port"],
+        db_config["name"]
+    )
+
+db_client = MongoClient(con_string)
+
+db = db_client.get_database(name=db_config["name"])
+
+collections = db.list_collection_names()
+
+for collection in ["saves", "devices", "apikeys", "expired"]:
+    if not collection in collections:
+        db.create_collection(collection)
+
+col_saves = db.get_collection("saves")
+col_devices = db.get_collection("devices")
+col_apikeys = db.get_collection("apikeys")
+col_expired = db.get_collection("expired")
\ No newline at end of file
diff --git a/modules/security.py b/modules/security.py
new file mode 100644
index 0000000..eff5d7b
--- /dev/null
+++ b/modules/security.py
@@ -0,0 +1,17 @@
+from hashlib import pbkdf2_hmac
+from os import chmod, path, urandom
+from typing import Union
+from modules.utils import configGet
+from fastapi.openapi.models import APIKey
+
+def saltRead():
+    if not path.exists(path.join(configGet("data", "locations"), "salt")):
+        with open(path.join(configGet("data", "locations"), "salt"), "wb") as file:
+            file.write(urandom(32))
+        chmod(path.join(configGet("data", "locations"), "salt"), mode=0o600)
+    with open(path.join(configGet("data", "locations"), "salt"), "rb") as file:
+        contents = file.read()
+    return contents
+
+def passEncode(password: Union[str, APIKey, None]) -> Union[bytes, None]:
+    return None if password is None else pbkdf2_hmac("sha256", str(password).encode("utf-8"), saltRead(), 96800, dklen=128)
\ No newline at end of file
diff --git a/modules/utils.py b/modules/utils.py
index e50fcf9..700002a 100644
--- a/modules/utils.py
+++ b/modules/utils.py
@@ -1,4 +1,6 @@
-from typing import Any, Union
+from os import makedirs, path
+from typing import Any, Tuple, Union
+from uuid import uuid4
 from ujson import loads, dumps, JSONDecodeError
 from traceback import print_exc
 
@@ -58,4 +60,19 @@ def configGet(key: str, *args: str) -> Any:
     this_key = this_dict
     for dict_key in args:
         this_key = this_key[dict_key]
-    return this_key[key]
\ No newline at end of file
+    return this_key[key]
+
+def saveFile(filebytes: bytes) -> Tuple[str, str]:
+    """Save some bytedata into random file and return its ID
+
+    ### Args:
+        * filebytes (`bytes`): Bytes to write into file
+
+    ### Returns:
+        * `Tuple[str, str]`: Tuple where first item is an ID and the second is an absolute path to file
+    """    
+    makedirs(path.join(configGet("data", "locations"), "files"), exist_ok=True)
+    filename = str(uuid4())
+    with open(path.join(configGet("data", "locations"), "files", filename), "wb") as file:
+        file.write(filebytes)
+    return filename, path.join(configGet("data", "locations"), "files", filename)
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index ecfa816..90ea0a1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
 fastapi[all]
 ujson~=5.7.0
+pymongo~=4.3.3
 pydantic~=1.10.4
 xmltodict~=0.13.0
 apscheduler~=3.9.1.post1
\ No newline at end of file
diff --git a/sync_api.py b/sync_api.py
index 4ddafee..57d22da 100644
--- a/sync_api.py
+++ b/sync_api.py
@@ -1,4 +1,4 @@
-from os import makedirs, path
+from os import makedirs
 from modules.app import app
 from modules.utils import configGet
 from modules.extensions_loader import dynamic_import_from_src
@@ -7,15 +7,6 @@ from starlette.status import HTTP_200_OK
 
 makedirs(configGet("data", "locations"), exist_ok=True)
 
-for entry in [path.join(configGet("data", "locations"), "api_keys.json"), path.join(configGet("data", "locations"), "expired_keys.json")]:
-    mode = 'r' if path.exists(entry) else 'w'
-    with open(entry, mode) as f:
-        try:
-            f.write("[]")
-        except:
-            pass
-
-
 @app.get("/check", response_class=Response, include_in_schema=False)
 async def check():
     return Response(HTTP_200_OK)
@@ -24,7 +15,6 @@ async def check():
 async def favicon():
     return FileResponse("favicon.ico")
 
-
 #=================================================================================
 dynamic_import_from_src("extensions", star_import = True)
 #=================================================================================
\ No newline at end of file
diff --git a/sync_gen.py b/sync_gen.py
new file mode 100644
index 0000000..c83bc00
--- /dev/null
+++ b/sync_gen.py
@@ -0,0 +1,27 @@
+from argparse import ArgumentParser
+from json import dumps
+from uuid import uuid4
+from modules.database import col_apikeys
+from modules.security import passEncode
+
+# Args =====================================================================================================================================
+parser = ArgumentParser(
+    prog = "Stardew Valley Sync API",
+    description = "Small subprogram made for API keys generation."
+)
+
+parser.add_argument("-u", "--username", help="Enter username without input prompt", action="store")
+parser.add_argument("-j", "--json", help="Return output as a json. Username must be provided as an argument",  action="store_true")
+
+args = parser.parse_args()
+#===========================================================================================================================================
+
+username = input("Enter username: ") if args.username is None else args.username
+
+new_key = str(uuid4())
+col_apikeys.insert_one({"user": username, "hash": passEncode(new_key)})
+
+if args.json is True and args.username is not None:
+    print(dumps({"apikey": new_key}))
+else:
+    print(f"Generated API key for {username}: {new_key}", flush=True)
\ No newline at end of file
diff --git a/validation/apikeys.json b/validation/apikeys.json
new file mode 100644
index 0000000..1f67276
--- /dev/null
+++ b/validation/apikeys.json
@@ -0,0 +1,16 @@
+{
+    "$jsonSchema": {
+        "required": [
+            "user",
+            "hash"
+        ],
+        "properties": {
+            "user": {
+                "bsonType": "string"
+            },
+            "hash": {
+                "bsonType": "binData"
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/validation/devices.json b/validation/devices.json
new file mode 100644
index 0000000..e2d56d1
--- /dev/null
+++ b/validation/devices.json
@@ -0,0 +1,24 @@
+{
+    "$jsonSchema": {
+        "required": [
+            "user",
+            "name",
+            "os",
+            "last_save"
+        ],
+        "properties": {
+            "user": {
+                "bsonType": "string"
+            },
+            "name": {
+                "bsonType": "string"
+            },
+            "os": {
+                "bsonType": "string"
+            },
+            "last_save": {
+                "bsonType": ["int", "double"]
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/validation/expired.json b/validation/expired.json
new file mode 100644
index 0000000..6f72dd3
--- /dev/null
+++ b/validation/expired.json
@@ -0,0 +1,12 @@
+{
+    "$jsonSchema": {
+        "required": [
+            "hash"
+        ],
+        "properties": {
+            "hash": {
+                "bsonType": "binData"
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/validation/saves.json b/validation/saves.json
new file mode 100644
index 0000000..8d48a6c
--- /dev/null
+++ b/validation/saves.json
@@ -0,0 +1,92 @@
+{
+    "$jsonSchema": {
+        "required": [
+            "id",
+            "user",
+            "device",
+            "date",
+            "data",
+            "data.farmer",
+            "data.money",
+            "data.played",
+            "data.save_time",
+            "data.year",
+            "data.season",
+            "data.day",
+            "files",
+            "files.save",
+            "files.save.name",
+            "files.save.uuid",
+            "files.save.path",
+            "files.saveinfo",
+            "files.saveinfo.name",
+            "files.saveinfo.uuid",
+            "files.saveinfo.path"
+        ],
+        "properties": {
+            "id": {
+                "bsonType": "int"
+            },
+            "user": {
+                "bsonType": "string"
+            },
+            "device": {
+                "bsonType": "string"
+            },
+            "date": {
+                "bsonType": ["int", "double"]
+            },
+            "data": {
+                "bsonType": "object"
+            },
+            "data.farmer": {
+                "bsonType": "string"
+            },
+            "data.money": {
+                "bsonType": "int"
+            },
+            "data.played": {
+                "bsonType": "int"
+            },
+            "data.save_time": {
+                "bsonType": "int"
+            },
+            "data.year": {
+                "bsonType": "int"
+            },
+            "data.season": {
+                "bsonType": "int"
+            },
+            "data.day": {
+                "bsonType": "int"
+            },
+            "files": {
+                "bsonType": "object"
+            },
+            "files.save": {
+                "bsonType": "object"
+            },
+            "files.save.name": {
+                "bsonType": "string"
+            },
+            "files.save.uuid": {
+                "bsonType": "string"
+            },
+            "files.save.path": {
+                "bsonType": "string"
+            },
+            "files.saveinfo": {
+                "bsonType": "object"
+            },
+            "files.saveinfo.name": {
+                "bsonType": "string"
+            },
+            "files.saveinfo.uuid": {
+                "bsonType": "string"
+            },
+            "files.saveinfo.path": {
+                "bsonType": "string"
+            }
+        }
+    }
+}
\ No newline at end of file