run in libmode without api key dos not throw an error

[mwallschlaeger]

If you run

import json
stations = [
            # weather
            "ws1_l1_rtu_BL",
            "ws2_l1_rtu_BL",
            "tbsl1_00172_BL",
            # stationary 
            "tbs6a_08_180056_BL",
            "tbs6a_15_180063_BL",
            "tbs6a_05_180052_BL",
            "tbs6a_28_180084_BL",
            "tbs6a_04_180051_BL",
            "tbs6a_11_180059_BL",
            "tbs6a_30_180086_BL",
            "tbs6a_29_180085_BL",
            "tbs6a_20_180072_BL",
            "tbs6a_21_180073_BL",
            "tbs6a_10_180058_BL",
            "tbs6a_01_180048_BL",
            "tbs6a_02_180049_BL",
            "tbs6a_07_180055_BL",
            "tbs6a_22_180075_BL",
            "tbs6a_03_180050_BL",
            "tbs6a_17_180069_BL",
            "tbs6a_13_180061_BL",
            "tbs6a_26_180082_BL",
            "tbs6a_24_180078_BL",
            "tbs6a_23_180076_BL",
            "tbs6a_09_180057_BL",
            "tbs6a_25_180081_BL",
            "tbs6a_18_180070_BL",
            "tbs6a_19_180071_BL",
            "tbs6a_16_180068_BL",
            # mobile
            "wcecst_01_BL",
            "wcecst_02_BL",
            "wcecst_03_BL",
            "wcecst_04_BL",
            "wcecst_05_BL",
            "wcecst_06_BL",
            "wcecst_07_BL",
            "wcecst_08_BL",
            "wcecst_09_BL",
            "wcecst_10_BL" ]
conf = {
    "apikey": "", # logstar api key
    "stationlist": stations, # list of stations to process
    "geodata": True, # Returns longitude and latitude of the station as well as a comment (not implemented, i guess)
    "datetime": 0, #  Date and time format in the channel list: integer: 0/1
                   #  0 (default): „dateTime“: „2020-04-01 00:00:00“
                   #  1: „date“: „2020-04-01“, „time“: „00:00:00“
    "startdate": "2021-01-01", # Day from which the data should be retrieved in the format: YYYY-MM-DD
    "enddate": "2022-01-01" # Day to which the data is to be retrieved in the format: YYYY-MM-DD
}

# load mapping file to translate sensor name to patch name and meassurement acronyms to names.
sensor_mapping = ""
with open("patchcrop-sensor-mapping.json") as jsonfile:
        sensor_mapping = json.load(jsonfile)

import logstar_stream.logstar as logstar
import logstar_stream.processing_steps.ProcessingStep as ps
import logging

# configure logging
logging.basicConfig(format='%(asctime)s %(message)s', level=logging.INFO)

df_dict = logstar.manage_dl_db( conf=conf,                     # configuration
                                sensor_mapping=sensor_mapping, # translation file
                                csv_folder="data/")       

without providing an API key the manage_dl_db function will seem to work properly and not throw an error log or exception whilte trying to download without api key.

It should check if a working api key is given