Remove network calls from tests

.github/workflows/ci.yml

@@ -35,6 +35,7 @@ jobs:
       - name: Unit tests
         run: |
           pip install pytest
+          pip install responses
           PYTHONPATH=. pytest tests
       - name: Lint with flake8
         run: |

hopp/__init__.py

@@ -4,4 +4,7 @@
 with open(Path(__file__).parent / "version.py") as _version_file:
     __version__ = _version_file.read().strip()
 
-ROOT_DIR = Path(__file__).resolve().parent
+ROOT_DIR = Path(__file__).resolve().parent
+
+# environment variable used to specify a testing environment
+TEST_ENV_VAR="TEST"

hopp/simulation/technologies/layout/flicker_mismatch.py

@@ -1,10 +1,11 @@
 from typing import List, Union, Optional, Sequence
-import multiprocessing_on_dill as mp
 from pathlib import Path
-import functools
 import copy
 from itertools import product
 import sys
+
+import multiprocessing_on_dill as mp
+import functools
 import matplotlib.pyplot as plt
 sys.path.append('.')
 
@@ -13,6 +14,7 @@
 from pvmismatch import pvsystem
 import PySAM.Pvwattsv8 as pv
 
+from hopp import ROOT_DIR
 from hopp.utilities.log import flicker_logger as logger
 from hopp.simulation.technologies.resource import SolarResource
 from hopp.simulation.technologies.layout.shadow_flicker import get_sun_pos, get_turbine_shadows_timeseries, create_pv_string_points
@@ -167,7 +169,7 @@ def _setup_irradiance(self):
         pv_model.SystemDesign.gcr = .1
         if self.solar_resource_data is None:
             filename = str(self.lat) + "_" + str(self.lon) + "_psmv3_60_2012.csv"
-            weather_path = Path(__file__).parent.parent.parent / "resource_files" / "solar" / filename
+            weather_path = ROOT_DIR.parent / "resource_files" / "solar" / filename
             if not weather_path.is_file():
                 SolarResource(self.lat, self.lon, year=2012)
                 if not weather_path.is_file():

hopp/simulation/technologies/utility_rate.py

@@ -4,15 +4,21 @@
 
 from hopp.utilities.keys import get_developer_nrel_gov_key
 
+URDB_BASE_URL = "https://api.openei.org/utility_rates"
 
 class UtilityRate:
     """
     Class to define a utility rate and interact with the Utility Rate Database (URDB)
     https://api.openei.org/utility_rates?version=7&format=json&detail=full&getpage={urdb_label}&api_key={api_key}'
     """
-    def __init__(self, path_rates, urdb_label):
+    def __init__(self, path_rates, urdb_label, api_key=None):
         self.path_rates = path_rates
         self.urdb_label = urdb_label
+        self.api_key = api_key or get_developer_nrel_gov_key()
+
+    @property
+    def urdb_url(self):
+        return f"{URDB_BASE_URL}?version=7&format=json&detail=full&getpage={self.urdb_label}&api_key={self.api_key}"
 
     def get_urdb_response(self):
         file_exists = False
@@ -21,11 +27,8 @@ def get_urdb_response(self):
             file_exists = os.path.exists(file_urdb_json)
         results = None
         if not file_exists and self.urdb_label is not None:
-            urdb_url = 'https://api.openei.org/utility_rates?version=7&format=json&detail=full&getpage={urdb_label}&api_key={api_key}'.format(
-                urdb_label=self.urdb_label, api_key=get_developer_nrel_gov_key())
-
             # since NREL can't figure out its certificate
-            resp = requests.get(urdb_url, verify=False)
+            resp = requests.get(self.urdb_url, verify=False)
 
             if resp.ok:
                 results = json.loads(resp.text, strict=False)
@@ -34,7 +37,7 @@ def get_urdb_response(self):
                     with open(file_urdb_json, 'w') as fp:
                         json.dump(obj=results, fp=fp)
                 self.urdb_response = results
-        elif os.path.exists(file_urdb_json):
+        elif file_exists:
             with open(file_urdb_json, 'r') as fp:
                 results = json.load(fp=fp)
         self.results = results

requirements-dev.txt

@@ -16,6 +16,7 @@ pytest
 python-dotenv
 pytz
 requests
+responses
 scipy
 timezonefinder
 

resource_files/utility_rate_response.json

@@ -0,0 +1 @@
+"{\"items\":[{\"label\":\"5ca4d1175457a39b23b3d45e\",\"uri\":\"https:\\/\\/apps.openei.org\\/IURDB\\/rate\\/view\\/5ca4d1175457a39b23b3d45e\",\"sector\":\"Industrial\",\"energyweekendschedule\":[[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]],\"enddate\":1546239600,\"flatdemandunit\":\"kW\",\"supersedes\":\"5a6b955b5457a3285de4a645\",\"demandrateunit\":\"kW\",\"eiaid\":15466,\"demandratestructure\":[[{\"rate\":2.33}],[{\"rate\":4.11}]],\"flatdemandmonths\":[0,0,0,0,0,0,0,0,0,0,0,0],\"revisions\":[1554283703,1554283840,1583403431],\"energyratestructure\":[[{\"rate\":0.01824,\"adj\":0.0239241,\"unit\":\"kWh\"}],[{\"rate\":0.10307,\"adj\":0.0363393,\"unit\":\"kWh\"}]],\"flatdemandstructure\":[[{\"rate\":5.63,\"adj\":3.64}]],\"startdate\":1546329600,\"energyweekdayschedule\":[[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]],\"fixedchargeunits\":\"$\\/month\",\"utility\":\"Public Service Co of Colorado\",\"servicetype\":\"Bundled\",\"description\":\"AVAILABILITY\\r\\nAvailable to Customers with a minimum average Monthly Load Factor of thirty\\r\\npercent (30%) as measured for the previous twelve (12) consecutive Months. Once a\\r\\nCustomer requesting service under this tariff demonstrates a Load Factor of at least\\r\\nthirty percent (30%) and is deemed eligible for service under the tariff, then the\\r\\nCustomer can remain on the schedule even if the Customer&#x;fffds Load Factor subsequently\\r\\nfalls below thirty percent (30%). Eligibility qualifications for new construction for\\r\\nSPVTOU where twelve (12) Months of historical usage is unavailable will be reviewed\\r\\nbased on the submitted Electric Load forecast as part of the solar application.\\r\\nNotwithstanding the above, available to those six (6) irrigation Customer loads\\r\\nwhere a PV System was installed prior to January 1, 2010. The annual amount of new\\r\\ncapacity eligible to take service under Section A is capped at the projected amount of\\r\\non-site PV system capacity for medium size facilities (10 kW &#x;fffd 500 kW) in the\\r\\nCompany&#x;fffds Solar*Rewards&#x;fffd program.\\r\\nThe annual incremental load eligible for service under Section B will be capped\\r\\nat the annual PV capacity limit approved for the Solar*Rewards&#x;fffd Medium program for\\r\\nthe same Year. If in a calendar Year the Company has new participants in the SPVTOU\\r\\ntariff totaling thirty-six (36) Megawatts in aggregate noncoincident demand, the\\r\\nCompany will temporarily suspend the SPVTOU tariff to new entrants and convene a\\r\\nmeeting of the Existing Voluntary Renewable Stakeholder Group to discuss the issue\\r\\nand seek a resolution.\",\"name\":\"Secondary Photovoltaic Time Of Use Schedule (SPVTOU) Section B\",\"is_default\":false,\"source\":\"https:\\/\\/www.xcelenergy.com\\/staticfiles\\/xe\\/PDF\\/Regulatory\\/CO-Rates-&-Regulations-Entire-Electric-Book.pdf\",\"demandweekendschedule\":[[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]],\"voltagecategory\":\"Secondary\",\"energycomments\":\"Adjustments = Earnings Share adjustment + Demand Side Management Cost adjustment + Purchased Capacity Cost adjustment + Transmission Cost adjustment + Electric Commodity adjustment + Clean Air-Clean Jobs Act rider + Renewable Energy Standard adjustment\",\"approved\":true,\"demandweekdayschedule\":[[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1],[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1],[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1],[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]],\"dgrules\":\"Net Metering\",\"country\":\"USA\",\"fixedchargefirstmeter\":44.57,\"demandunits\":\"kW\",\"sourceparent\":\"https:\\/\\/www.xcelenergy.com\\/staticfiles\\/xe\\/PDF\\/Regulatory\\/CO-Rates-&-Regulations-Entire-Electric-Book.pdf\"}]}"

tests/conftest.py

@@ -0,0 +1,10 @@
+"""
+Pytest configuration file.
+"""
+import os
+
+from hopp import TEST_ENV_VAR
+
+def pytest_sessionstart(session):
+    os.environ["ENV"] = TEST_ENV_VAR
+

tests/hopp/test_dispatch.py

@@ -16,21 +16,22 @@
 from hopp.simulation.technologies.battery import Battery
 from hopp.simulation.hybrid_simulation import HybridSimulation
 
+from hopp import ROOT_DIR
 from hopp.simulation.technologies.dispatch.power_storage.linear_voltage_convex_battery_dispatch import ConvexLinearVoltageBatteryDispatch
 from hopp.simulation.technologies.dispatch.power_storage.simple_battery_dispatch import SimpleBatteryDispatch
 from hopp.simulation.technologies.dispatch.hybrid_dispatch_builder_solver import HybridDispatchBuilderSolver
 from hopp.simulation.technologies.dispatch.power_sources.pv_dispatch import PvDispatch
 from hopp.simulation.technologies.dispatch.power_sources.wind_dispatch import WindDispatch
 
 
+solar_resource_file = ROOT_DIR.parent / "resource_files" / "solar" / "35.2018863_-101.945027_psmv3_60_2012.csv"
+wind_resource_file = ROOT_DIR.parent / "resource_files" / "wind" / "35.2018863_-101.945027_windtoolkit_2012_60min_80m_100m.srw"
+
 @pytest.fixture
 def site():
-    solar_resource_file = Path(__file__).absolute().parent.parent.parent / "resource_files" / "solar" / "35.2018863_-101.945027_psmv3_60_2012.csv"
-    wind_resource_file = Path(__file__).absolute().parent.parent.parent / "resource_files" / "wind" / "35.2018863_-101.945027_windtoolkit_2012_60min_80m_100m.srw"
     return SiteInfo(flatirons_site, solar_resource_file=solar_resource_file, wind_resource_file=wind_resource_file)
 
 
-
 interconnect_mw = 50
 technologies = {'pv': {
                     'system_capacity_kw': 50 * 1000,
@@ -724,8 +725,12 @@ def test_desired_schedule_dispatch():
     daily_schedule.extend([0] * 5)
     desired_schedule = daily_schedule*365
 
-    desired_schedule_site = SiteInfo(flatirons_site,
-                                     desired_schedule=desired_schedule)
+    desired_schedule_site = SiteInfo(
+        flatirons_site, 
+        solar_resource_file=solar_resource_file,
+        wind_resource_file=wind_resource_file,
+        desired_schedule=desired_schedule
+    )
     tower_pv_battery = {key: technologies[key] for key in ('pv', 'tower', 'battery', 'grid')}
 
     # Default case doesn't leave enough head room for battery operations

tests/hopp/test_flicker_mismatch.py

@@ -1,23 +1,17 @@
 import platform
 from pytest import approx
 from hopp.simulation.technologies.layout.flicker_data.plot_flicker import *
-from hopp.utilities.keys import set_nrel_key_dot_env
-
-
-set_nrel_key_dot_env()
 
 lat = 39.7555
 lon = -105.2211
 
-
 def plot_maps(maps, flicker):
     for m in maps:
         axs = flicker.plot_on_site(False, False)
         c = plot_contour(m, flicker, axs, vmin=np.amin(m), vmax=np.amax(m))
         plt.colorbar(c)
         plt.show()
 
-
 def test_single_turbine():
     FlickerMismatch.diam_mult_nwe = 3
     FlickerMismatch.diam_mult_s = 1

tests/hopp/test_hybrid.py

@@ -1,6 +1,11 @@
+from pathlib import Path
+from copy import deepcopy
+
 from pydoc import apropos
 from pytest import approx, fixture, raises
-from pathlib import Path
+import numpy as np
+import json
+import PySAM.Singleowner as Singleowner
 
 # from hopp.simulation.technologies.layout.hybrid_layout import WindBoundaryGridParameters, PVGridParameters
 from hopp.simulation.technologies.layout.wind_layout import WindBoundaryGridParameters
@@ -11,23 +16,15 @@
 from examples.Detailed_PV_Layout.detailed_pv_config import PVLayoutConfig
 from hopp.simulation.technologies.sites.site_info import SiteInfo
 from hopp.simulation.technologies.sites.flatirons_site import flatirons_site
-import PySAM.Singleowner as Singleowner
 from hopp.simulation.technologies.grid import Grid
-from hopp.utilities.keys import set_nrel_key_dot_env
 from hopp.simulation.technologies.layout.pv_design_utils import size_electrical_parameters
-from copy import deepcopy
-import numpy as np
-import json
-
-set_nrel_key_dot_env()
 
-solar_resource_file = Path(__file__).absolute().parent.parent.parent / "resource_files" / "solar" / "35.2018863_-101.945027_psmv3_60_2012.csv"
-wind_resource_file = Path(__file__).absolute().parent.parent.parent / "resource_files" / "wind" / "35.2018863_-101.945027_windtoolkit_2012_60min_80m_100m.srw"
+from tests.hopp.utils import create_default_site_info
 
 
 @fixture
 def site():
-    return SiteInfo(flatirons_site, solar_resource_file=solar_resource_file, wind_resource_file=wind_resource_file)
+    return create_default_site_info()
 
 
 interconnection_size_kw = 15000
@@ -806,10 +803,7 @@ def test_hybrid_tax_incentives(site):
 
 
 def test_capacity_credit():
-    site = SiteInfo(data=flatirons_site,
-                    solar_resource_file=solar_resource_file,
-                    wind_resource_file=wind_resource_file,
-                    capacity_hours=capacity_credit_hours)
+    site = create_default_site_info(capacity_hours=capacity_credit_hours)
     wind_pv_battery = {key: technologies[key] for key in ('pv', 'wind', 'battery')}
     wind_pv_battery['grid'] = {
                     'interconnect_kw': interconnection_size_kw

tests/hopp/test_layout.py

@@ -3,27 +3,25 @@
 from pathlib import Path
 from timeit import default_timer
 import numpy as np
-import os
 import json
 import matplotlib.pyplot as plt
 from shapely import affinity
 from shapely.ops import unary_union
-from shapely.geometry import Point, Polygon, MultiLineString
+from shapely.geometry import Point, MultiLineString
 
-from hopp.simulation.technologies.sites import SiteInfo, flatirons_site
 from hopp.simulation.technologies.wind_source import WindPlant
 from hopp.simulation.technologies.pv_source import PVPlant
 from hopp.simulation.technologies.layout.hybrid_layout import HybridLayout, WindBoundaryGridParameters, PVGridParameters, get_flicker_loss_multiplier
 from hopp.simulation.technologies.layout.wind_layout_tools import create_grid
 from hopp.simulation.technologies.layout.pv_design_utils import size_electrical_parameters, find_modules_per_string
 from hopp.simulation.technologies.detailed_pv_plant import DetailedPVPlant
 
+from tests.hopp.utils import create_default_site_info
+
 
 @pytest.fixture
 def site():
-    solar_resource_file = Path(__file__).absolute().parent.parent.parent / "resource_files" / "solar" / "35.2018863_-101.945027_psmv3_60_2012.csv"
-    wind_resource_file = Path(__file__).absolute().parent.parent.parent / "resource_files" / "wind" / "35.2018863_-101.945027_windtoolkit_2012_60min_80m_100m.srw"
-    return SiteInfo(flatirons_site, solar_resource_file=solar_resource_file, wind_resource_file=wind_resource_file)
+    return create_default_site_info()
 
 
 technology = {
@@ -49,12 +47,11 @@ def site():
 }
 
 
-def test_create_grid():
-    site_info = SiteInfo(flatirons_site)
-    bounding_shape = site_info.polygon.buffer(-200)
-    site_info.plot()
+def test_create_grid(site):
+    bounding_shape = site.polygon.buffer(-200)
+    site.plot()
     turbine_positions = create_grid(bounding_shape,
-                                    site_info.polygon.centroid,
+                                    site.polygon.centroid,
                                     np.pi / 4,
                                     200,
                                     200,

tests/hopp/test_reopt.py

@@ -3,14 +3,12 @@
 import PySAM.Singleowner as so
 import os
 
-from hopp.simulation.technologies.sites import *
-from hopp.simulation.technologies.pv_source import *
-from hopp.simulation.technologies.wind_source import *
-from hopp.simulation.technologies.sites import SiteInfo
+from hopp.simulation.technologies.pv_source import PVPlant
+from hopp.simulation.technologies.wind_source import WindPlant
 from hopp.simulation.technologies.reopt import REopt
-from hopp.utilities.keys import set_nrel_key_dot_env
 
-set_nrel_key_dot_env()
+from tests.hopp.utils import create_default_site_info
+
 filepath = os.path.dirname(os.path.abspath(__file__))
 
 
@@ -20,7 +18,7 @@ def test_ReOPT():
     lon = -105.2211
 
     # get resource and create model
-    site = SiteInfo(flatirons_site)
+    site = create_default_site_info()
 
     load = [1000*(sin(x) + pi)for x in range(0, 8760)]
     urdb_label = "5ca4d1175457a39b23b3d45e" # https://openei.org/apps/IURDB/rate/view/5ca3d45ab718b30e03405898

tests/hopp/test_resource.py

@@ -0,0 +1,75 @@
+import os
+
+import requests
+import pytest
+import responses
+
+from hopp.simulation.technologies.resource import Resource
+
+api_url = "https://api.example.com/data"
+fname = "testfile.csv"
+
+
+@responses.activate
+def test_call_api():
+    responses.add(
+        responses.GET,
+        api_url,
+        status=200,
+    )
+    assert Resource.call_api(api_url, fname) == True
+
+    # cleanup
+    os.remove(fname)    
+
+@responses.activate
+def test_call_api_timeout():
+    resp = responses.add(
+        responses.GET,
+        api_url,
+        body=requests.exceptions.Timeout()
+    )
+    assert Resource.call_api(api_url, fname) == False
+    assert resp.call_count == 5
+
+@responses.activate
+def test_call_api_400_error():
+    responses.add(
+        responses.GET,
+        api_url,
+        json={'errors': 'Bad request'},
+        status=400
+    )
+    with pytest.raises(requests.exceptions.HTTPError):
+        Resource.call_api(api_url, fname)
+
+@responses.activate
+def test_call_api_403_error():
+    responses.add(
+        responses.GET,
+        api_url,
+        json={'errors': 'Forbidden'},
+        status=403
+    )
+    with pytest.raises(requests.exceptions.HTTPError):
+        Resource.call_api(api_url, fname)
+
+@responses.activate
+def test_call_api_404_error():
+    responses.add(
+        responses.GET,
+        api_url,
+        status=404
+    )
+    with pytest.raises(requests.exceptions.HTTPError):
+        Resource.call_api(api_url, fname)
+
+@responses.activate
+def test_call_api_429_error():
+    responses.add(
+        responses.GET,
+        api_url,
+        status=429
+    )
+    with pytest.raises(RuntimeError):
+        Resource.call_api(api_url, fname)