Merge pull request #5243 from freqtrade/feat/webservermode_progress

Introduce webserver mode subcommand

docs/utils.md

@@ -614,6 +614,48 @@ Show whitelist when using a [dynamic pairlist](plugins.md#pairlists).
 freqtrade test-pairlist --config config.json --quote USDT BTC
 ```
 
+## Webserver mode
+
+!!! Warning "Experimental"
+    Webserver mode is an experimental mode to increase backesting and strategy development productivity.
+    There may still be bugs - so if you happen to stumble across these, please report them as github issues, thanks.
+
+Run freqtrade in webserver mode.
+Freqtrade will start the webserver and allow FreqUI to start and control backtesting processes.
+This has the advantage that data will not be reloaded between backtesting runs (as long as timeframe and timerange remain identical).
+FreqUI will also show the backtesting results.
+
+```
+usage: freqtrade webserver [-h] [-v] [--logfile FILE] [-V] [-c PATH] [-d PATH]
+                           [--userdir PATH] [-s NAME] [--strategy-path PATH]
+
+optional arguments:
+  -h, --help            show this help message and exit
+
+Common arguments:
+  -v, --verbose         Verbose mode (-vv for more, -vvv to get all messages).
+  --logfile FILE        Log to the file specified. Special values are:
+                        'syslog', 'journald'. See the documentation for more
+                        details.
+  -V, --version         show program's version number and exit
+  -c PATH, --config PATH
+                        Specify configuration file (default:
+                        `userdir/config.json` or `config.json` whichever
+                        exists). Multiple --config options may be used. Can be
+                        set to `-` to read config from stdin.
+  -d PATH, --datadir PATH
+                        Path to directory with historical backtesting data.
+  --userdir PATH, --user-data-dir PATH
+                        Path to userdata directory.
+
+Strategy arguments:
+  -s NAME, --strategy NAME
+                        Specify strategy class name which will be used by the
+                        bot.
+  --strategy-path PATH  Specify additional strategy lookup path.
+
+```
+
 ## List Hyperopt results
 
 You can list the hyperoptimization epochs the Hyperopt module evaluated previously with the `hyperopt-list` sub-command.

freqtrade/commands/__init__.py

@@ -20,3 +20,4 @@ from freqtrade.commands.optimize_commands import start_backtesting, start_edge,
 from freqtrade.commands.pairlist_commands import start_test_pairlist
 from freqtrade.commands.plot_commands import start_plot_dataframe, start_plot_profit
 from freqtrade.commands.trade_commands import start_trading
+from freqtrade.commands.webserver_commands import start_webserver

freqtrade/commands/arguments.py

@@ -16,6 +16,8 @@ ARGS_STRATEGY = ["strategy", "strategy_path"]
 
 ARGS_TRADE = ["db_url", "sd_notify", "dry_run", "dry_run_wallet", "fee"]
 
+ARGS_WEBSERVER: List[str] = []
+
 ARGS_COMMON_OPTIMIZE = ["timeframe", "timerange", "dataformat_ohlcv",
                         "max_open_trades", "stake_amount", "fee", "pairs"]
 
@@ -176,7 +178,8 @@ class Arguments:
                                         start_list_markets, start_list_strategies,
                                         start_list_timeframes, start_new_config, start_new_hyperopt,
                                         start_new_strategy, start_plot_dataframe, start_plot_profit,
-                                        start_show_trades, start_test_pairlist, start_trading)
+                                        start_show_trades, start_test_pairlist, start_trading,
+                                        start_webserver)
 
         subparsers = self.parser.add_subparsers(dest='command',
                                                 # Use custom message when no subhandler is added
@@ -384,3 +387,9 @@ class Arguments:
         )
         plot_profit_cmd.set_defaults(func=start_plot_profit)
         self._build_args(optionlist=ARGS_PLOT_PROFIT, parser=plot_profit_cmd)
+
+        # Add webserver subcommand
+        webserver_cmd = subparsers.add_parser('webserver', help='Webserver module.',
+                                              parents=[_common_parser])
+        webserver_cmd.set_defaults(func=start_webserver)
+        self._build_args(optionlist=ARGS_WEBSERVER, parser=webserver_cmd)

freqtrade/commands/webserver_commands.py

@@ -0,0 +1,15 @@
+from typing import Any, Dict
+
+from freqtrade.enums import RunMode
+
+
+def start_webserver(args: Dict[str, Any]) -> None:
+    """
+    Main entry point for webserver mode
+    """
+    from freqtrade.configuration import Configuration
+    from freqtrade.rpc.api_server import ApiServer
+
+    # Initialize configuration
+    config = Configuration(args, RunMode.WEBSERVER).get_config()
+    ApiServer(config, standalone=True)

freqtrade/configuration/configuration.py

@@ -71,7 +71,7 @@ class Configuration:
 
             # Merge config options, overwriting old values
             config = deep_merge_dicts(load_config_file(path), config)
-
+        config['config_files'] = files
         # Normalize config
         if 'internals' not in config:
             config['internals'] = {}

freqtrade/enums/__init__.py

@@ -1,4 +1,5 @@
 # flake8: noqa: F401
+from freqtrade.enums.backteststate import BacktestState
 from freqtrade.enums.rpcmessagetype import RPCMessageType
 from freqtrade.enums.runmode import NON_UTIL_MODES, OPTIMIZE_MODES, TRADING_MODES, RunMode
 from freqtrade.enums.selltype import SellType

freqtrade/enums/backteststate.py

@@ -0,0 +1,15 @@
+from enum import Enum
+
+
+class BacktestState(Enum):
+    """
+    Bot application states
+    """
+    STARTUP = 1
+    DATALOAD = 2
+    ANALYZE = 3
+    CONVERT = 4
+    BACKTEST = 5
+
+    def __str__(self):
+        return f"{self.name.lower()}"

freqtrade/enums/runmode.py

@@ -14,6 +14,7 @@ class RunMode(Enum):
     UTIL_EXCHANGE = "util_exchange"
     UTIL_NO_EXCHANGE = "util_no_exchange"
     PLOT = "plot"
+    WEBSERVER = "webserver"
     OTHER = "other"
 
 

freqtrade/optimize/backtesting.py

@@ -17,10 +17,11 @@ from freqtrade.data import history
 from freqtrade.data.btanalysis import trade_list_to_dataframe
 from freqtrade.data.converter import trim_dataframes
 from freqtrade.data.dataprovider import DataProvider
-from freqtrade.enums import SellType
+from freqtrade.enums import BacktestState, SellType
 from freqtrade.exceptions import DependencyException, OperationalException
 from freqtrade.exchange import timeframe_to_minutes, timeframe_to_seconds
 from freqtrade.mixins import LoggingMixin
+from freqtrade.optimize.bt_progress import BTProgress
 from freqtrade.optimize.optimize_reports import (generate_backtest_stats, show_backtest_results,
                                                  store_backtest_stats)
 from freqtrade.persistence import LocalTrade, PairLocks, Trade
@@ -57,6 +58,7 @@ class Backtesting:
 
         LoggingMixin.show_output = False
         self.config = config
+        self.results: Optional[Dict[str, Any]] = None
 
         # Reset keys for backtesting
         remove_credentials(self.config)
@@ -118,6 +120,9 @@ class Backtesting:
         self.required_startup = max([strat.startup_candle_count for strat in self.strategylist])
         self.exchange.validate_required_startup_candles(self.required_startup, self.timeframe)
 
+        self.progress = BTProgress()
+        self.abort = False
+
     def __del__(self):
         LoggingMixin.show_output = True
         PairLocks.use_db = True
@@ -147,6 +152,8 @@ class Backtesting:
         Loads backtest data and returns the data combined with the timerange
         as tuple.
         """
+        self.progress.init_step(BacktestState.DATALOAD, 1)
+
         timerange = TimeRange.parse_timerange(None if self.config.get(
             'timerange') is None else str(self.config.get('timerange')))
 
@@ -170,6 +177,7 @@ class Backtesting:
         timerange.adjust_start_if_necessary(timeframe_to_seconds(self.timeframe),
                                             self.required_startup, min_date)
 
+        self.progress.set_new_value(1)
         return data, timerange
 
     def prepare_backtest(self, enable_protections):
@@ -184,6 +192,15 @@ class Backtesting:
         self.rejected_trades = 0
         self.dataprovider.clear_cache()
 
+    def check_abort(self):
+        """
+        Check if abort was requested, raise DependencyException if that's the case
+        Only applies to Interactive backtest mode (webserver mode)
+        """
+        if self.abort:
+            self.abort = False
+            raise DependencyException("Stop requested")
+
     def _get_ohlcv_as_lists(self, processed: Dict[str, DataFrame]) -> Dict[str, Tuple]:
         """
         Helper function to convert a processed dataframes into lists for performance reasons.
@@ -194,8 +211,12 @@ class Backtesting:
         # and eventually change the constants for indexes at the top
         headers = ['date', 'buy', 'open', 'close', 'sell', 'low', 'high']
         data: Dict = {}
+        self.progress.init_step(BacktestState.CONVERT, len(processed))
+
         # Create dict with data
         for pair, pair_data in processed.items():
+            self.check_abort()
+            self.progress.increment()
             if not pair_data.empty:
                 pair_data.loc[:, 'buy'] = 0  # cleanup if buy_signal is exist
                 pair_data.loc[:, 'sell'] = 0  # cleanup if sell_signal is exist
@@ -417,10 +438,13 @@ class Backtesting:
         open_trades: Dict[str, List[LocalTrade]] = defaultdict(list)
         open_trade_count = 0
 
+        self.progress.init_step(BacktestState.BACKTEST, int(
+            (end_date - start_date) / timedelta(minutes=self.timeframe_min)))
+
         # Loop timerange and get candle for each pair at that point in time
         while tmp <= end_date:
             open_trade_count_start = open_trade_count
-
+            self.check_abort()
             for i, pair in enumerate(data):
                 row_index = indexes[pair]
                 try:
@@ -476,6 +500,7 @@ class Backtesting:
                             self.protections.global_stop(tmp)
 
             # Move time one configured time_interval ahead.
+            self.progress.increment()
             tmp += timedelta(minutes=self.timeframe_min)
 
         trades += self.handle_left_open(open_trades, data=data)
@@ -491,6 +516,8 @@ class Backtesting:
         }
 
     def backtest_one_strategy(self, strat: IStrategy, data: Dict[str, Any], timerange: TimeRange):
+        self.progress.init_step(BacktestState.ANALYZE, 0)
+
         logger.info("Running backtesting for Strategy %s", strat.get_strategy_name())
         backtest_start_time = datetime.now(timezone.utc)
         self._set_strategy(strat)
@@ -517,6 +544,7 @@ class Backtesting:
                 "No data left after adjusting for startup candles.")
 
         min_date, max_date = history.get_timerange(preprocessed)
+
         logger.info(f'Backtesting with data from {min_date.strftime(DATETIME_PRINT_FORMAT)} '
                     f'up to {max_date.strftime(DATETIME_PRINT_FORMAT)} '
                     f'({(max_date - min_date).days} days).')
@@ -551,11 +579,12 @@ class Backtesting:
         for strat in self.strategylist:
             min_date, max_date = self.backtest_one_strategy(strat, data, timerange)
         if len(self.strategylist) > 0:
-            stats = generate_backtest_stats(data, self.all_results,
+
+            self.results = generate_backtest_stats(data, self.all_results,
                                                    min_date=min_date, max_date=max_date)
 
             if self.config.get('export', 'none') == 'trades':
-                store_backtest_stats(self.config['exportfilename'], stats)
+                store_backtest_stats(self.config['exportfilename'], self.results)
 
             # Show backtest results
-            show_backtest_results(self.config, stats)
+            show_backtest_results(self.config, self.results)

freqtrade/optimize/bt_progress.py

@@ -0,0 +1,33 @@
+from freqtrade.enums import BacktestState
+
+
+class BTProgress:
+    _action: BacktestState = BacktestState.STARTUP
+    _progress: float = 0
+    _max_steps: float = 0
+
+    def __init__(self):
+        pass
+
+    def init_step(self, action: BacktestState, max_steps: float):
+        self._action = action
+        self._max_steps = max_steps
+        self._proress = 0
+
+    def set_new_value(self, new_value: float):
+        self._progress = new_value
+
+    def increment(self):
+        self._progress += 1
+
+    @property
+    def progress(self):
+        """
+        Get progress as ratio, capped to be between 0 and 1 (to avoid small calculation errors).
+        """
+        return max(min(round(self._progress / self._max_steps, 5)
+                       if self._max_steps > 0 else 0, 1), 0)
+
+    @property
+    def action(self):
+        return str(self._action)

freqtrade/rpc/api_server/api_backtest.py

@@ -0,0 +1,176 @@
+import asyncio
+import logging
+from copy import deepcopy
+
+from fastapi import APIRouter, BackgroundTasks, Depends
+
+from freqtrade.enums import BacktestState
+from freqtrade.exceptions import DependencyException
+from freqtrade.rpc.api_server.api_schemas import BacktestRequest, BacktestResponse
+from freqtrade.rpc.api_server.deps import get_config
+from freqtrade.rpc.api_server.webserver import ApiServer
+from freqtrade.rpc.rpc import RPCException
+
+
+logger = logging.getLogger(__name__)
+
+# Private API, protected by authentication
+router = APIRouter()
+
+
+@router.post('/backtest', response_model=BacktestResponse, tags=['webserver', 'backtest'])
+async def api_start_backtest(bt_settings: BacktestRequest, background_tasks: BackgroundTasks,
+                             config=Depends(get_config)):
+    """Start backtesting if not done so already"""
+    if ApiServer._bgtask_running:
+        raise RPCException('Bot Background task already running')
+
+    btconfig = deepcopy(config)
+    settings = dict(bt_settings)
+    # Pydantic models will contain all keys, but non-provided ones are None
+    for setting in settings.keys():
+        if settings[setting] is not None:
+            btconfig[setting] = settings[setting]
+
+    # Start backtesting
+    # Initialize backtesting object
+    def run_backtest():
+        from freqtrade.optimize.optimize_reports import generate_backtest_stats
+        from freqtrade.resolvers import StrategyResolver
+        asyncio.set_event_loop(asyncio.new_event_loop())
+        try:
+            # Reload strategy
+            lastconfig = ApiServer._bt_last_config
+            strat = StrategyResolver.load_strategy(btconfig)
+
+            if (
+                not ApiServer._bt
+                or lastconfig.get('timeframe') != strat.timeframe
+                or lastconfig.get('dry_run_wallet') != btconfig.get('dry_run_wallet', 0)
+            ):
+                from freqtrade.optimize.backtesting import Backtesting
+                ApiServer._bt = Backtesting(btconfig)
+
+            # Only reload data if timeframe or timerange changed.
+            if (
+                not ApiServer._bt_data
+                or not ApiServer._bt_timerange
+                or lastconfig.get('timerange') != btconfig['timerange']
+                or lastconfig.get('stake_amount') != btconfig.get('stake_amount')
+                or lastconfig.get('enable_protections') != btconfig.get('enable_protections')
+                or lastconfig.get('protections') != btconfig.get('protections', [])
+                or lastconfig.get('timeframe') != strat.timeframe
+            ):
+                lastconfig['timerange'] = btconfig['timerange']
+                lastconfig['protections'] = btconfig.get('protections', [])
+                lastconfig['enable_protections'] = btconfig.get('enable_protections')
+                lastconfig['dry_run_wallet'] = btconfig.get('dry_run_wallet')
+                lastconfig['timeframe'] = strat.timeframe
+                ApiServer._bt_data, ApiServer._bt_timerange = ApiServer._bt.load_bt_data()
+
+            ApiServer._bt.abort = False
+            min_date, max_date = ApiServer._bt.backtest_one_strategy(
+                strat, ApiServer._bt_data, ApiServer._bt_timerange)
+            ApiServer._bt.results = generate_backtest_stats(
+                ApiServer._bt_data, ApiServer._bt.all_results,
+                min_date=min_date, max_date=max_date)
+            logger.info("Backtest finished.")
+
+        except DependencyException as e:
+            logger.info(f"Backtesting caused an error: {e}")
+            pass
+        finally:
+            ApiServer._bgtask_running = False
+
+    background_tasks.add_task(run_backtest)
+    ApiServer._bgtask_running = True
+
+    return {
+        "status": "running",
+        "running": True,
+        "progress": 0,
+        "step": str(BacktestState.STARTUP),
+        "status_msg": "Backtest started",
+    }
+
+
+@router.get('/backtest', response_model=BacktestResponse, tags=['webserver', 'backtest'])
+def api_get_backtest():
+    """
+    Get backtesting result.
+    Returns Result after backtesting has been ran.
+    """
+    from freqtrade.persistence import LocalTrade
+    if ApiServer._bgtask_running:
+        return {
+            "status": "running",
+            "running": True,
+            "step": ApiServer._bt.progress.action if ApiServer._bt else str(BacktestState.STARTUP),
+            "progress": ApiServer._bt.progress.progress if ApiServer._bt else 0,
+            "trade_count": len(LocalTrade.trades),
+            "status_msg": "Backtest running",
+        }
+
+    if not ApiServer._bt:
+        return {
+            "status": "not_started",
+            "running": False,
+            "step": "",
+            "progress": 0,
+            "status_msg": "Backtest not yet executed"
+        }
+
+    return {
+        "status": "ended",
+        "running": False,
+        "status_msg": "Backtest ended",
+        "step": "finished",
+        "progress": 1,
+        "backtest_result": ApiServer._bt.results,
+    }
+
+
+@router.delete('/backtest', response_model=BacktestResponse, tags=['webserver', 'backtest'])
+def api_delete_backtest():
+    """Reset backtesting"""
+    if ApiServer._bgtask_running:
+        return {
+            "status": "running",
+            "running": True,
+            "step": "",
+            "progress": 0,
+            "status_msg": "Backtest running",
+        }
+    if ApiServer._bt:
+        del ApiServer._bt
+        ApiServer._bt = None
+        del ApiServer._bt_data
+        ApiServer._bt_data = None
+        logger.info("Backtesting reset")
+    return {
+        "status": "reset",
+        "running": False,
+        "step": "",
+        "progress": 0,
+        "status_msg": "Backtest reset",
+    }
+
+
+@router.get('/backtest/abort', response_model=BacktestResponse, tags=['webserver', 'backtest'])
+def api_backtest_abort():
+    if not ApiServer._bgtask_running:
+        return {
+            "status": "not_running",
+            "running": False,
+            "step": "",
+            "progress": 0,
+            "status_msg": "Backtest ended",
+        }
+    ApiServer._bt.abort = True
+    return {
+        "status": "stopping",
+        "running": False,
+        "step": "",
+        "progress": 0,
+        "status_msg": "Backtest ended",
+    }

freqtrade/rpc/api_server/api_schemas.py

@@ -123,17 +123,17 @@ class ShowConfig(BaseModel):
     stake_currency_decimals: int
     max_open_trades: int
     minimal_roi: Dict[str, Any]
-    stoploss: float
-    trailing_stop: bool
+    stoploss: Optional[float]
+    trailing_stop: Optional[bool]
     trailing_stop_positive: Optional[float]
     trailing_stop_positive_offset: Optional[float]
     trailing_only_offset_is_reached: Optional[bool]
     use_custom_stoploss: Optional[bool]
-    timeframe: str
+    timeframe: Optional[str]
     timeframe_ms: int
     timeframe_min: int
     exchange: str
-    strategy: str
+    strategy: Optional[str]
     forcebuy_enabled: bool
     ask_strategy: Dict[str, Any]
     bid_strategy: Dict[str, Any]
@@ -318,3 +318,24 @@ class PairHistory(BaseModel):
         json_encoders = {
             datetime: lambda v: v.strftime(DATETIME_PRINT_FORMAT),
         }
+
+
+class BacktestRequest(BaseModel):
+    strategy: str
+    timeframe: Optional[str]
+    timerange: Optional[str]
+    max_open_trades: Optional[int]
+    stake_amount: Optional[Union[float, str]]
+    enable_protections: bool
+    dry_run_wallet: Optional[float]
+
+
+class BacktestResponse(BaseModel):
+    status: str
+    running: bool
+    status_msg: str
+    step: str
+    progress: float
+    trade_count: Optional[float]
+    # TODO: Properly type backtestresult...
+    backtest_result: Optional[Dict[str, Any]]

freqtrade/rpc/api_server/api_v1.py

@@ -1,3 +1,4 @@
+import logging
 from copy import deepcopy
 from pathlib import Path
 from typing import List, Optional
@@ -22,6 +23,8 @@ from freqtrade.rpc.api_server.deps import get_config, get_rpc, get_rpc_optional
 from freqtrade.rpc.rpc import RPCException
 
 
+logger = logging.getLogger(__name__)
+
 # Public API, requires no auth.
 router_public = APIRouter()
 # Private API, protected by authentication
@@ -249,7 +252,7 @@ def list_available_pairs(timeframe: Optional[str] = None, stake_currency: Option
     pair_interval = sorted(pair_interval, key=lambda x: x[0])
 
     pairs = list({x[0] for x in pair_interval})
-
+    pairs.sort()
     result = {
         'length': len(pairs),
         'pairs': pairs,

freqtrade/rpc/api_server/webserver.py

@@ -8,6 +8,7 @@ from fastapi import Depends, FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 from starlette.responses import JSONResponse
 
+from freqtrade.exceptions import OperationalException
 from freqtrade.rpc.api_server.uvicorn_threaded import UvicornServer
 from freqtrade.rpc.rpc import RPC, RPCException, RPCHandler
 
@@ -28,17 +29,37 @@ class FTJSONResponse(JSONResponse):
 
 class ApiServer(RPCHandler):
 
+    __instance = None
+    __initialized = False
+
     _rpc: RPC
+    # Backtesting type: Backtesting
+    _bt = None
+    _bt_data = None
+    _bt_timerange = None
+    _bt_last_config: Dict[str, Any] = {}
     _has_rpc: bool = False
+    _bgtask_running: bool = False
     _config: Dict[str, Any] = {}
 
-    def __init__(self, rpc: RPC, config: Dict[str, Any]) -> None:
-        super().__init__(rpc, config)
-        self._server = None
+    def __new__(cls, *args, **kwargs):
+        """
+        This class is a singleton.
+        We'll only have one instance of it around.
+        """
+        if ApiServer.__instance is None:
+            ApiServer.__instance = object.__new__(cls)
+            ApiServer.__initialized = False
+        return ApiServer.__instance
 
-        ApiServer._rpc = rpc
-        ApiServer._has_rpc = True
+    def __init__(self, config: Dict[str, Any], standalone: bool = False) -> None:
         ApiServer._config = config
+        if self.__initialized and (standalone or self._standalone):
+            return
+        self._standalone: bool = standalone
+        self._server = None
+        ApiServer.__initialized = True
+
         api_config = self._config['api_server']
 
         self.app = FastAPI(title="Freqtrade API",
@@ -50,12 +71,33 @@ class ApiServer(RPCHandler):
 
         self.start_api()
 
+    def add_rpc_handler(self, rpc: RPC):
+        """
+        Attach rpc handler
+        """
+        if not self._has_rpc:
+            ApiServer._rpc = rpc
+            ApiServer._has_rpc = True
+        else:
+            # This should not happen assuming we didn't mess up.
+            raise OperationalException('RPC Handler already attached.')
+
     def cleanup(self) -> None:
         """ Cleanup pending module resources """
-        if self._server:
+        ApiServer._has_rpc = False
+        del ApiServer._rpc
+        if self._server and not self._standalone:
             logger.info("Stopping API Server")
             self._server.cleanup()
 
+    @classmethod
+    def shutdown(cls):
+        cls.__initialized = False
+        del cls.__instance
+        cls.__instance = None
+        cls._has_rpc = False
+        cls._rpc = None
+
     def send_msg(self, msg: Dict[str, str]) -> None:
         pass
 
@@ -68,6 +110,7 @@ class ApiServer(RPCHandler):
 
     def configure_app(self, app: FastAPI, config):
         from freqtrade.rpc.api_server.api_auth import http_basic_or_jwt_token, router_login
+        from freqtrade.rpc.api_server.api_backtest import router as api_backtest
         from freqtrade.rpc.api_server.api_v1 import router as api_v1
         from freqtrade.rpc.api_server.api_v1 import router_public as api_v1_public
         from freqtrade.rpc.api_server.web_ui import router_ui
@@ -77,6 +120,9 @@ class ApiServer(RPCHandler):
         app.include_router(api_v1, prefix="/api/v1",
                            dependencies=[Depends(http_basic_or_jwt_token)],
                            )
+        app.include_router(api_backtest, prefix="/api/v1",
+                           dependencies=[Depends(http_basic_or_jwt_token)],
+                           )
         app.include_router(router_login, prefix="/api/v1", tags=["auth"])
         # UI Router MUST be last!
         app.include_router(router_ui, prefix='')
@@ -125,6 +171,9 @@ class ApiServer(RPCHandler):
                                   )
         try:
             self._server = UvicornServer(uvconfig)
+            if self._standalone:
+                self._server.run()
+            else:
                 self._server.run_in_thread()
         except Exception:
             logger.exception("Api server failed to start.")

freqtrade/rpc/rpc.py

@@ -119,9 +119,9 @@ class RPC:
             'bot_name': config.get('bot_name', 'freqtrade'),
             'timeframe': config.get('timeframe'),
             'timeframe_ms': timeframe_to_msecs(config['timeframe']
-                                               ) if 'timeframe' in config else '',
+                                               ) if 'timeframe' in config else 0,
             'timeframe_min': timeframe_to_minutes(config['timeframe']
-                                                  ) if 'timeframe' in config else '',
+                                                  ) if 'timeframe' in config else 0,
             'exchange': config['exchange']['name'],
             'strategy': config['strategy'],
             'forcebuy_enabled': config.get('forcebuy_enable', False),

freqtrade/rpc/rpc_manager.py

@@ -36,15 +36,16 @@ class RPCManager:
         if config.get('api_server', {}).get('enabled', False):
             logger.info('Enabling rpc.api_server')
             from freqtrade.rpc.api_server import ApiServer
-
-            self.registered_modules.append(ApiServer(self._rpc, config))
+            apiserver = ApiServer(config)
+            apiserver.add_rpc_handler(self._rpc)
+            self.registered_modules.append(apiserver)
 
     def cleanup(self) -> None:
         """ Stops all enabled rpc modules """
         logger.info('Cleaning up rpc modules ...')
         while self.registered_modules:
             mod = self.registered_modules.pop()
-            logger.debug('Cleaning up rpc.%s ...', mod.name)
+            logger.info('Cleaning up rpc.%s ...', mod.name)
             mod.cleanup()
             del mod
 

tests/commands/test_commands.py

@@ -13,7 +13,7 @@ from freqtrade.commands import (start_convert_data, start_create_userdir, start_
                                 start_list_data, start_list_exchanges, start_list_hyperopts,
                                 start_list_markets, start_list_strategies, start_list_timeframes,
                                 start_new_hyperopt, start_new_strategy, start_show_trades,
-                                start_test_pairlist, start_trading)
+                                start_test_pairlist, start_trading, start_webserver)
 from freqtrade.commands.deploy_commands import (clean_ui_subdir, download_and_install_ui,
                                                 get_ui_download_url, read_ui_version)
 from freqtrade.configuration import setup_utils_configuration
@@ -58,6 +58,18 @@ def test_start_trading_fail(mocker, caplog):
     assert log_has('Fatal exception!', caplog)
 
 
+def test_start_webserver(mocker, caplog):
+
+    api_server_mock = mocker.patch("freqtrade.rpc.api_server.ApiServer", )
+
+    args = [
+        'webserver',
+        '-c', 'config_bittrex.json.example'
+    ]
+    start_webserver(get_args(args))
+    assert api_server_mock.call_count == 1
+
+
 def test_list_exchanges(capsys):
 
     args = [

tests/optimize/test_backtesting.py

@@ -346,6 +346,20 @@ def test_data_to_dataframe_bt(default_conf, mocker, testdatadir) -> None:
     assert processed['UNITTEST/BTC'].equals(processed2['UNITTEST/BTC'])
 
 
+def test_backtest_abort(default_conf, mocker, testdatadir) -> None:
+    patch_exchange(mocker)
+    backtesting = Backtesting(default_conf)
+    backtesting.check_abort()
+
+    backtesting.abort = True
+
+    with pytest.raises(DependencyException, match="Stop requested"):
+        backtesting.check_abort()
+    # abort flag resets
+    assert backtesting.abort is False
+    assert backtesting.progress.progress == 0
+
+
 def test_backtesting_start(default_conf, mocker, testdatadir, caplog) -> None:
     def get_timerange(input1):
         return Arrow(2017, 11, 14, 21, 17), Arrow(2017, 11, 14, 22, 59)

tests/rpc/test_rpc_apiserver.py

@@ -2,6 +2,7 @@
 Unit test file for rpc/api_server.py
 """
 
+import json
 from datetime import datetime, timedelta, timezone
 from pathlib import Path
 from unittest.mock import ANY, MagicMock, PropertyMock
@@ -16,7 +17,7 @@ from requests.auth import _basic_auth_str
 
 from freqtrade.__init__ import __version__
 from freqtrade.enums import RunMode, State
-from freqtrade.exceptions import ExchangeError
+from freqtrade.exceptions import DependencyException, ExchangeError, OperationalException
 from freqtrade.loggers import setup_logging, setup_logging_pre
 from freqtrade.persistence import PairLocks, Trade
 from freqtrade.rpc import RPC
@@ -48,9 +49,13 @@ def botclient(default_conf, mocker):
     ftbot = get_patched_freqtradebot(mocker, default_conf)
     rpc = RPC(ftbot)
     mocker.patch('freqtrade.rpc.api_server.ApiServer.start_api', MagicMock())
-    apiserver = ApiServer(rpc, default_conf)
+    try:
+        apiserver = ApiServer(default_conf)
+        apiserver.add_rpc_handler(rpc)
         yield ftbot, TestClient(apiserver.app)
         # Cleanup ... ?
+    finally:
+        ApiServer.shutdown()
 
 
 def client_post(client, url, data={}):
@@ -235,8 +240,13 @@ def test_api__init__(default_conf, mocker):
                                         }})
     mocker.patch('freqtrade.rpc.telegram.Updater', MagicMock())
     mocker.patch('freqtrade.rpc.api_server.webserver.ApiServer.start_api', MagicMock())
-    apiserver = ApiServer(RPC(get_patched_freqtradebot(mocker, default_conf)), default_conf)
+    apiserver = ApiServer(default_conf)
+    apiserver.add_rpc_handler(RPC(get_patched_freqtradebot(mocker, default_conf)))
     assert apiserver._config == default_conf
+    with pytest.raises(OperationalException, match="RPC Handler already attached."):
+        apiserver.add_rpc_handler(RPC(get_patched_freqtradebot(mocker, default_conf)))
+
+    ApiServer.shutdown()
 
 
 def test_api_UvicornServer(mocker):
@@ -298,15 +308,21 @@ def test_api_run(default_conf, mocker, caplog):
                                         }})
     mocker.patch('freqtrade.rpc.telegram.Updater', MagicMock())
 
-    server_mock = MagicMock()
+    server_inst_mock = MagicMock()
+    server_inst_mock.run_in_thread = MagicMock()
+    server_inst_mock.run = MagicMock()
+    server_mock = MagicMock(return_value=server_inst_mock)
     mocker.patch('freqtrade.rpc.api_server.webserver.UvicornServer', server_mock)
 
-    apiserver = ApiServer(RPC(get_patched_freqtradebot(mocker, default_conf)), default_conf)
+    apiserver = ApiServer(default_conf)
+    apiserver.add_rpc_handler(RPC(get_patched_freqtradebot(mocker, default_conf)))
 
     assert server_mock.call_count == 1
     assert apiserver._config == default_conf
     apiserver.start_api()
     assert server_mock.call_count == 2
+    assert server_inst_mock.run_in_thread.call_count == 2
+    assert server_inst_mock.run.call_count == 0
     assert server_mock.call_args_list[0][0][0].host == "127.0.0.1"
     assert server_mock.call_args_list[0][0][0].port == 8080
     assert isinstance(server_mock.call_args_list[0][0][0].app, FastAPI)
@@ -325,6 +341,8 @@ def test_api_run(default_conf, mocker, caplog):
     apiserver.start_api()
 
     assert server_mock.call_count == 1
+    assert server_inst_mock.run_in_thread.call_count == 1
+    assert server_inst_mock.run.call_count == 0
     assert server_mock.call_args_list[0][0][0].host == "0.0.0.0"
     assert server_mock.call_args_list[0][0][0].port == 8089
     assert isinstance(server_mock.call_args_list[0][0][0].app, FastAPI)
@@ -338,12 +356,24 @@ def test_api_run(default_conf, mocker, caplog):
                    "Please make sure that this is intentional!", caplog)
     assert log_has_re("SECURITY WARNING - `jwt_secret_key` seems to be default.*", caplog)
 
+    server_mock.reset_mock()
+    apiserver._standalone = True
+    apiserver.start_api()
+    assert server_inst_mock.run_in_thread.call_count == 0
+    assert server_inst_mock.run.call_count == 1
+
+    apiserver1 = ApiServer(default_conf)
+    assert id(apiserver1) == id(apiserver)
+
+    apiserver._standalone = False
+
     # Test crashing API server
     caplog.clear()
     mocker.patch('freqtrade.rpc.api_server.webserver.UvicornServer',
                  MagicMock(side_effect=Exception))
     apiserver.start_api()
     assert log_has("Api server failed to start.", caplog)
+    ApiServer.shutdown()
 
 
 def test_api_cleanup(default_conf, mocker, caplog):
@@ -359,11 +389,13 @@ def test_api_cleanup(default_conf, mocker, caplog):
     server_mock.cleanup = MagicMock()
     mocker.patch('freqtrade.rpc.api_server.webserver.UvicornServer', server_mock)
 
-    apiserver = ApiServer(RPC(get_patched_freqtradebot(mocker, default_conf)), default_conf)
+    apiserver = ApiServer(default_conf)
+    apiserver.add_rpc_handler(RPC(get_patched_freqtradebot(mocker, default_conf)))
 
     apiserver.cleanup()
     assert apiserver._server.cleanup.call_count == 1
     assert log_has("Stopping API Server", caplog)
+    ApiServer.shutdown()
 
 
 def test_api_reloadconf(botclient):
@@ -1221,3 +1253,108 @@ def test_list_available_pairs(botclient):
     assert rc.json()['length'] == 1
     assert rc.json()['pairs'] == ['XRP/ETH']
     assert len(rc.json()['pair_interval']) == 1
+
+
+def test_api_backtesting(botclient, mocker, fee, caplog):
+    ftbot, client = botclient
+    mocker.patch('freqtrade.exchange.Exchange.get_fee', fee)
+
+    # Backtesting not started yet
+    rc = client_get(client, f"{BASE_URI}/backtest")
+    assert_response(rc)
+
+    result = rc.json()
+    assert result['status'] == 'not_started'
+    assert not result['running']
+    assert result['status_msg'] == 'Backtest not yet executed'
+    assert result['progress'] == 0
+
+    # Reset backtesting
+    rc = client_delete(client, f"{BASE_URI}/backtest")
+    assert_response(rc)
+    result = rc.json()
+    assert result['status'] == 'reset'
+    assert not result['running']
+    assert result['status_msg'] == 'Backtest reset'
+
+    # start backtesting
+    data = {
+        "strategy": "DefaultStrategy",
+        "timeframe": "5m",
+        "timerange": "20180110-20180111",
+        "max_open_trades": 3,
+        "stake_amount": 100,
+        "dry_run_wallet": 1000,
+        "enable_protections": False
+    }
+    rc = client_post(client, f"{BASE_URI}/backtest", data=json.dumps(data))
+    assert_response(rc)
+    result = rc.json()
+
+    assert result['status'] == 'running'
+    assert result['progress'] == 0
+    assert result['running']
+    assert result['status_msg'] == 'Backtest started'
+
+    rc = client_get(client, f"{BASE_URI}/backtest")
+    assert_response(rc)
+
+    result = rc.json()
+    assert result['status'] == 'ended'
+    assert not result['running']
+    assert result['status_msg'] == 'Backtest ended'
+    assert result['progress'] == 1
+    assert result['backtest_result']
+
+    rc = client_get(client, f"{BASE_URI}/backtest/abort")
+    assert_response(rc)
+    result = rc.json()
+    assert result['status'] == 'not_running'
+    assert not result['running']
+    assert result['status_msg'] == 'Backtest ended'
+
+    # Simulate running backtest
+    ApiServer._bgtask_running = True
+    rc = client_get(client, f"{BASE_URI}/backtest/abort")
+    assert_response(rc)
+    result = rc.json()
+    assert result['status'] == 'stopping'
+    assert not result['running']
+    assert result['status_msg'] == 'Backtest ended'
+
+    # Get running backtest...
+    rc = client_get(client, f"{BASE_URI}/backtest")
+    assert_response(rc)
+    result = rc.json()
+    assert result['status'] == 'running'
+    assert result['running']
+    assert result['step'] == "backtest"
+    assert result['status_msg'] == "Backtest running"
+
+    # Try delete with task still running
+    rc = client_delete(client, f"{BASE_URI}/backtest")
+    assert_response(rc)
+    result = rc.json()
+    assert result['status'] == 'running'
+
+    # Post to backtest that's still running
+    rc = client_post(client, f"{BASE_URI}/backtest", data=json.dumps(data))
+    assert_response(rc, 502)
+    result = rc.json()
+    assert 'Bot Background task already running' in result['error']
+
+    ApiServer._bgtask_running = False
+
+    mocker.patch('freqtrade.optimize.backtesting.Backtesting.backtest_one_strategy',
+                 side_effect=DependencyException())
+    rc = client_post(client, f"{BASE_URI}/backtest", data=json.dumps(data))
+    assert log_has("Backtesting caused an error: ", caplog)
+
+    # Delete backtesting to avoid leakage since the backtest-object may stick around.
+    rc = client_delete(client, f"{BASE_URI}/backtest")
+    assert_response(rc)
+
+    result = rc.json()
+    assert result['status'] == 'reset'
+    assert not result['running']
+    assert result['status_msg'] == 'Backtest reset'

tests/rpc/test_rpc_manager.py

@@ -5,6 +5,7 @@ from unittest.mock import MagicMock
 
 from freqtrade.enums import RPCMessageType
 from freqtrade.rpc import RPCManager
+from freqtrade.rpc.api_server.webserver import ApiServer
 from tests.conftest import get_patched_freqtradebot, log_has
 
 
@@ -190,3 +191,4 @@ def test_init_apiserver_enabled(mocker, default_conf, caplog) -> None:
     assert len(rpc_manager.registered_modules) == 1
     assert 'apiserver' in [mod.name for mod in rpc_manager.registered_modules]
     assert run_mock.call_count == 1
+    ApiServer.shutdown()