diff --git a/README.md b/README.md
index 54497a8..36d89b9 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,8 @@ cp config.yml localconfig.yml
 
 ```bash
 queryCDS -h
+# or
+queryCDS --collection SENTINEL-1 --startdate 20230101T00:00:00 --stopdate 20230105T10:10:10 --mode IW --product SLC --querymode seq --geometry "POINT (-5.02 48.4)"
 ```
 
 or use the method `cdsodatacli.query.fetch_data()`
diff --git a/cdsodatacli/query.py b/cdsodatacli/query.py
index fb06080..6615def 100644
--- a/cdsodatacli/query.py
+++ b/cdsodatacli/query.py
@@ -14,6 +14,7 @@
     Polygon,
     MultiPolygon,
 )
+from shapely import wkt
 import geopandas as gpd
 import shapely
 from shapely.ops import unary_union
@@ -26,6 +27,83 @@
 import warnings
 
 DEFAULT_TOP_ROWS_PER_QUERY = 1000
+
+
+def query_client():
+    """
+
+    Returns
+    -------
+        result_query (pd.DataFrame): containing columns (footprint, Name, Id, original_query_id, ...)
+    """
+    root = logging.getLogger()
+    if root.handlers:
+        for handler in root.handlers:
+            root.removeHandler(handler)
+
+    import argparse
+
+    parser = argparse.ArgumentParser(description="query-CDSE-OData")
+    parser.add_argument("--verbose", action="store_true", default=False)
+    parser.add_argument(
+        "--collection",
+        required=False,
+        default="SENTINEL-1",
+        help="SENTINEL-1 or SENTINEL-2 ...",
+    )
+    parser.add_argument("--startdate", required=True, help=" YYYYMMDDTHH:MM:SS")
+    parser.add_argument("--stopdate", required=True, help=" YYYYMMDDTHH:MM:SS")
+    parser.add_argument("--mode", choices=["EW", "IW", "WV", "SM"])
+    parser.add_argument("--product", choices=["GRD", "SLC", "RAW", "OCN"])
+    parser.add_argument("--querymode", choices=["seq", "multi"])
+    parser.add_argument(
+        "--geometry",
+        required=False,
+        default=None,
+        help=" [optional, default=None -> global query] example: POINT (-5.02 48.4) or  POLYGON ((-12 35, 15 35, 15 58, -12 58, -12 35))",
+    )
+    args = parser.parse_args()
+    fmt = "%(asctime)s %(levelname)s %(filename)s(%(lineno)d) %(message)s"
+    if args.verbose:
+        logging.basicConfig(
+            level=logging.DEBUG, format=fmt, datefmt="%d/%m/%Y %H:%M:%S", force=True
+        )
+    else:
+        logging.basicConfig(
+            level=logging.INFO, format=fmt, datefmt="%d/%m/%Y %H:%M:%S", force=True
+        )
+    t0 = time.time()
+    sta = datetime.datetime.strptime(args.startdate, "%Y%m%dT%H:%M:%S")
+    sto = datetime.datetime.strptime(args.stopdate, "%Y%m%dT%H:%M:%S")
+    gdf = gpd.GeoDataFrame(
+        {
+            "start_datetime": [sta],
+            "end_datetime": [sto],
+            "geometry": [wkt.loads(args.geometry)],
+            "collection": [args.collection],
+            "name": [None],
+            "sensormode": [args.mode],
+            "producttype": [args.product],
+            "Attributes": [None],
+        }
+    )
+    result_query = fetch_data(
+        gdf,
+        date=None,
+        dtime=None,
+        timedelta_slice=datetime.timedelta(days=14),
+        start_datetime=None,
+        end_datetime=None,
+        min_sea_percent=None,
+        fig=None,
+        top=None,
+        cache_dir=None,
+        mode=args.querymode,
+    )
+    logging.info('time to query : %1.1f sec',time.time()-t0)
+    return result_query
+
+
 def fetch_data(
     gdf,
     date=None,
@@ -219,7 +297,7 @@ def normalize_gdf(
     for date_col in norm_gdf.select_dtypes(include=["datetime64"]).columns:
         try:
             norm_gdf[date_col] = norm_gdf[date_col].dt.tz_localize("UTC")
-            logging.debug('norm_gdf[date_col] %s',type(norm_gdf[date_col].iloc[0]))
+            logging.debug("norm_gdf[date_col] %s", type(norm_gdf[date_col].iloc[0]))
             # logger.warning("Assuming UTC date on col %s" % date_col)
         except TypeError:
             # already localized
@@ -444,8 +522,12 @@ def fetch_one_url(url, cpt, index, cache_dir):
                         # collected_data_x.append(collected_data)
                         cpt["product_proposed_by_CDS"] += len(collected_data["Name"])
                         collected_data["id_original_query"] = index
-                        if len(collected_data)==DEFAULT_TOP_ROWS_PER_QUERY:
-                            logging.warning("%i products found in a single CDSE OData query (maximum is %s): make sure the timedelta_slice parameters is small enough to avoid truncated results",len(collected_data),DEFAULT_TOP_ROWS_PER_QUERY)
+                        if len(collected_data) == DEFAULT_TOP_ROWS_PER_QUERY:
+                            logging.warning(
+                                "%i products found in a single CDSE OData query (maximum is %s): make sure the timedelta_slice parameters is small enough to avoid truncated results",
+                                len(collected_data),
+                                DEFAULT_TOP_ROWS_PER_QUERY,
+                            )
                         if pd.isna(collected_data["Name"]).any():
                             raise Exception("Name field contains NaN")
                         cpt["answer_append"] += 1
diff --git a/pyproject.toml b/pyproject.toml
index 1b3ee9a..8d96da1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ dependencies = [
 ]
 dynamic = ["version"]
 [project.scripts]
-queryCDS = "cdsodatacli.__main__:app"
+queryCDS = "cdsodatacli.query:query_client"
 downloadFromCDS = "cdsodatacli.download:main"
 #[tool.poetry.dependencies]
 #python = "^3.9"