adding simulation apis

17 files changed, 704 insertions, 0 deletions

diff --git a/blocks/blocks/settings.py b/blocks/blocks/settings.py
index cded8c64..acd216b2 100644
--- a/blocks/blocks/settings.py
+++ b/blocks/blocks/settings.py
@@ -41,6 +41,7 @@ INSTALLED_APPS = [
     'django_filters',
     'rest_framework',
     'frontend',
+    'simulationAPI',
 ]
 
 MIDDLEWARE = [
diff --git a/blocks/blocks/urls.py b/blocks/blocks/urls.py
index 8e491c69..eec86d52 100644
--- a/blocks/blocks/urls.py
+++ b/blocks/blocks/urls.py
@@ -18,6 +18,7 @@ from django.urls import path, include
 
 urlpatterns = [
     path('admin/', admin.site.urls),
+    path('api/simulation/', include('simulationAPI.urls')),
     path('api/', include('blocks.xcosblocks.urls')),
     path('', include('frontend.urls')),
 ]
diff --git a/blocks/simulationAPI/__init__.py b/blocks/simulationAPI/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/blocks/simulationAPI/__init__.py
diff --git a/blocks/simulationAPI/admin.py b/blocks/simulationAPI/admin.py
new file mode 100644
index 00000000..8c38f3f3
--- /dev/null
+++ b/blocks/simulationAPI/admin.py
@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.
diff --git a/blocks/simulationAPI/apps.py b/blocks/simulationAPI/apps.py
new file mode 100644
index 00000000..50190377
--- /dev/null
+++ b/blocks/simulationAPI/apps.py
@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class SimulationapiConfig(AppConfig):
+    name = 'simulationAPI'
diff --git a/blocks/simulationAPI/helpers/ngspice_helper.py b/blocks/simulationAPI/helpers/ngspice_helper.py
new file mode 100644
index 00000000..711943a1
--- /dev/null
+++ b/blocks/simulationAPI/helpers/ngspice_helper.py
@@ -0,0 +1,56 @@
+import os
+import logging
+import subprocess
+from pathlib import Path
+from django.conf import settings
+from .parse import extract_data_from_ngspice_output
+logger = logging.getLogger(__name__)
+
+
+class CannotRunSpice(Exception):
+    """Base class for exceptions in this module."""
+    pass
+
+
+def ExecXml(filepath, file_id):
+    if not os.path.isfile(filepath):
+        raise IOError
+    try:
+
+        current_dir = settings.MEDIA_ROOT+'/'+str(file_id)
+        # Make Unique Directory for simulation to run
+        Path(current_dir).mkdir(parents=True, exist_ok=True)
+        os.chdir(current_dir)
+        logger.info('will run ngSpice command')
+        proc = subprocess.Popen(['ngspice', '-ab', filepath],
+                                stdout=subprocess.PIPE, stderr=subprocess.PIPE,
+                                cwd=current_dir)
+        stdout, stderr = proc.communicate()
+        logger.info('Ran ngSpice command')
+
+        if proc.returncode not in [0, 1]:
+            logger.error('ngspice error encountered')
+            logger.error(stderr)
+            logger.error(proc.returncode)
+            logger.error(stdout)
+            target = os.listdir(current_dir)
+            for item in target:
+                if (item.endswith(".txt")):
+                    os.remove(os.path.join('.', item))
+            raise CannotRunSpice("ngspice exited with error")
+        else:
+            logger.info('Ran ngSpice')
+
+        logger.info("Reading Output")
+        output = extract_data_from_ngspice_output(current_dir+'/data.txt')
+        return output
+    except Exception as e:
+        logger.exception('Encountered Exception:')
+        logger.exception(e)
+    finally:
+        target = os.listdir(current_dir)
+        os.remove(filepath)
+        for item in target:
+            os.remove(os.path.join(current_dir, item))
+        os.rmdir(current_dir)
+        logger.info('Deleted Files')
diff --git a/blocks/simulationAPI/helpers/parse.py b/blocks/simulationAPI/helpers/parse.py
new file mode 100644
index 00000000..ee850a9b
--- /dev/null
+++ b/blocks/simulationAPI/helpers/parse.py
@@ -0,0 +1,79 @@
+import re
+import sys
+
+
+def extract_data_from_ngspice_output(pathToFile):
+    """ Parses the output file generated by ngspice and
+    returns a json containing points to plot graph.
+    """
+
+    try:
+        with open(pathToFile, 'r') as f:
+            f_contents = f.readlines()
+            graph = True
+
+            curernt_headers = []
+            total_number_of_tables = 0
+            if('=' in f_contents[0]):
+                graph = False
+
+            if(not graph):
+                json_data = {"data": [], "graph": "false"}
+                for line in f_contents:
+                    contents_of_line = line.split()
+                    json_data["data"].append(contents_of_line)
+
+            else:
+                json_data = {"data": [], "graph": "true"}
+                for line in f_contents:
+                    contents_of_line = line.split()
+
+                    if('Index' in contents_of_line):
+                        # line_set = remove_duplicate_items_from_list(
+                        #     contents_of_line)
+                        line_set = contents_of_line
+
+                        if(line_set != curernt_headers):
+                            curernt_headers = line_set
+                            json_data["data"].append(
+                                {"labels": [], "x": [], "y": []})
+                            index = len(json_data["data"]) - 1
+                            for x in range(2, len(curernt_headers)):
+                                json_data["data"][index]["y"].append([])
+
+                            for x in range(1, len(curernt_headers)):
+                                json_data["data"][index]["labels"].append(
+                                    curernt_headers[x])
+                                total_number_of_tables += 1
+
+                    else:
+                        m = re.match('[0-9]+', line)
+                        if(m):
+                            index = len(json_data["data"]) - 1
+                            data = json_data["data"][index]
+                            data["x"].append(contents_of_line[1])
+
+                            for x in range(len(data["y"])):
+                                data["y"][x].append(contents_of_line[x+2])
+                json_data["total_number_of_tables"] = total_number_of_tables -\
+                    len(json_data["data"])
+        return json_data
+
+    except IOError as e:
+        print('Cannot Open File')
+        raise e
+
+
+# def remove_duplicate_items_from_list(line_list):
+#     res = []
+#     for i in line_list:
+#         if i not in res:
+#             res.append(i)
+#     return res
+
+
+# for testing provide the filepath as command line argument
+if __name__ == "__main__":
+
+    filePath = sys.argv[1]
+    print(extract_data_from_ngspice_output(filePath))
diff --git a/blocks/simulationAPI/helpers/sample_files/RC.cir b/blocks/simulationAPI/helpers/sample_files/RC.cir
new file mode 100644
index 00000000..de92e788
--- /dev/null
+++ b/blocks/simulationAPI/helpers/sample_files/RC.cir
@@ -0,0 +1,17 @@
+
+* Author: FOSSEE
+* Date:
+
+r1  in out 1k
+c1  out gnd 10u
+v1  in gnd pwl(0m 0 0.5m 5 50m 5 50.5m 0 100m 0)
+* u1  in plot_v1
+* u2  out plot_v1
+.tran 10e-03 100e-03 0e-03
+
+* Control Statements
+.control
+run
+print all > data.txt
+.endc
+.end
diff --git a/blocks/simulationAPI/helpers/sample_files/data.txt b/blocks/simulationAPI/helpers/sample_files/data.txt
new file mode 100644
index 00000000..458a8bb5
--- /dev/null
+++ b/blocks/simulationAPI/helpers/sample_files/data.txt
@@ -0,0 +1,155 @@
+                                        
+                                       Transient Analysis  Sun Apr 26 18:25:24  2020
+--------------------------------------------------------------------------------
+Index   time            in              out             time            
+--------------------------------------------------------------------------------
+0	0.000000e+00	0.000000e+00	-1.21023e-22	0.000000e+00	
+1	1.000000e-05	1.570794e-02	1.570075e-02	1.000000e-05	
+2	2.000000e-05	3.141572e-02	3.140645e-02	2.000000e-05	
+3	4.000000e-05	6.283020e-02	6.281484e-02	4.000000e-05	
+4	8.000000e-05	1.256505e-01	1.256003e-01	8.000000e-05	
+5	1.600000e-04	2.512216e-01	2.504194e-01	1.600000e-04	
+6	3.200000e-04	5.018086e-01	4.396405e-01	3.200000e-04	
+7	5.343163e-04	8.353661e-01	5.117272e-01	5.343163e-04	
+8	7.511639e-04	1.169004e+00	5.404550e-01	7.511639e-04	
+9	1.014269e-03	1.566385e+00	5.610074e-01	1.014269e-03	
+10	1.540478e-03	2.326420e+00	5.852507e-01	1.540478e-03	
+11	2.592896e-03	3.637196e+00	6.101154e-01	2.592896e-03	
+12	4.592896e-03	4.959163e+00	6.259915e-01	4.592896e-03	
+13	6.592896e-03	4.386898e+00	6.198553e-01	6.592896e-03	
+14	8.592896e-03	2.138988e+00	5.802750e-01	8.592896e-03	
+15	1.059290e-02	-9.25943e-01	-5.21192e-01	1.059290e-02	
+16	1.168731e-02	-2.52802e+00	-5.90034e-01	1.168731e-02	
+17	1.260627e-02	-3.65157e+00	-6.10029e-01	1.260627e-02	
+18	1.351234e-02	-4.46380e+00	-6.20549e-01	1.351234e-02	
+19	1.532450e-02	-4.97404e+00	-6.26197e-01	1.532450e-02	
+20	1.732450e-02	-3.72500e+00	-6.11244e-01	1.732450e-02	
+21	1.932450e-02	-1.05313e+00	-5.32182e-01	1.932450e-02	
+22	2.109176e-02	1.681502e+00	5.658107e-01	2.109176e-02	
+23	2.284255e-02	3.894825e+00	6.136953e-01	2.284255e-02	
+24	2.446551e-02	4.929676e+00	6.256863e-01	2.446551e-02	
+25	2.603276e-02	4.739130e+00	6.236773e-01	2.603276e-02	
+26	2.803276e-02	2.897143e+00	5.977803e-01	2.803276e-02	
+27	3.003276e-02	-5.14551e-02	-5.14419e-02	3.003276e-02	
+28	3.181211e-02	-2.69517e+00	-5.93524e-01	3.181211e-02	
+29	3.353100e-02	-4.47693e+00	-6.20747e-01	3.353100e-02	
+30	3.548425e-02	-4.94225e+00	-6.26203e-01	3.548425e-02	
+31	3.748425e-02	-3.55298e+00	-6.08802e-01	3.748425e-02	
+32	3.948425e-02	-8.06597e-01	-5.07973e-01	3.948425e-02	
+33	4.084025e-02	1.304594e+00	5.485420e-01	4.084025e-02	
+34	4.232563e-02	3.336652e+00	6.053367e-01	4.232563e-02	
+35	4.432563e-02	4.888208e+00	6.256007e-01	4.432563e-02	
+36	4.614809e-02	4.678280e+00	6.231567e-01	4.614809e-02	
+37	4.814809e-02	2.747621e+00	5.949600e-01	4.814809e-02	
+38	5.014809e-02	-2.32536e-01	-2.32009e-01	5.014809e-02	
+39	5.106495e-02	-1.64179e+00	-5.64133e-01	5.106495e-02	
+40	5.192012e-02	-2.83650e+00	-5.96466e-01	5.192012e-02	
+41	5.288026e-02	-3.93170e+00	-6.14042e-01	5.288026e-02	
+42	5.433190e-02	-4.89027e+00	-6.25323e-01	5.433190e-02	
+43	5.633190e-02	-4.56865e+00	-6.21871e-01	5.633190e-02	
+44	5.833190e-02	-2.50196e+00	-5.89905e-01	5.833190e-02	
+45	6.033190e-02	5.203956e-01	4.469106e-01	6.033190e-02	
+46	6.201058e-02	2.952352e+00	5.985459e-01	6.201058e-02	
+47	6.359054e-02	4.517790e+00	6.212035e-01	6.359054e-02	
+48	6.524527e-02	4.985165e+00	6.263736e-01	6.524527e-02	
+49	6.724527e-02	3.806855e+00	6.123643e-01	6.724527e-02	
+50	6.924527e-02	1.174457e+00	5.410754e-01	6.924527e-02	
+51	7.069407e-02	-1.08163e+00	-5.34385e-01	7.069407e-02	
+52	7.237416e-02	-3.39303e+00	-6.06125e-01	7.237416e-02	
+53	7.412120e-02	-4.81065e+00	-6.24769e-01	7.412120e-02	
+54	7.582571e-02	-4.83272e+00	-6.24761e-01	7.582571e-02	
+
+Index   time            in              out             time            
+--------------------------------------------------------------------------------
+55	7.782571e-02	-3.15590e+00	-6.02409e-01	7.782571e-02	
+56	7.982571e-02	-2.73641e-01	-2.72327e-01	7.982571e-02	
+57	8.082874e-02	1.287122e+00	5.479313e-01	8.082874e-02	
+58	8.192022e-02	2.836635e+00	5.964361e-01	8.192022e-02	
+59	8.332868e-02	4.326466e+00	6.189574e-01	8.332868e-02	
+60	8.468753e-02	4.975928e+00	6.262056e-01	8.468753e-02	
+61	8.668753e-02	4.313647e+00	6.188623e-01	8.668753e-02	
+62	8.868753e-02	2.003700e+00	5.763923e-01	8.868753e-02	
+63	9.068753e-02	-1.07159e+00	-5.33642e-01	9.068753e-02	
+64	9.256918e-02	-3.61153e+00	-6.09422e-01	9.256918e-02	
+65	9.445688e-02	-4.92739e+00	-6.26152e-01	9.445688e-02	
+66	9.621191e-02	-4.64196e+00	-6.22698e-01	9.621191e-02	
+67	9.821191e-02	-2.66332e+00	-5.93225e-01	9.821191e-02	
+68	1.000000e-01	-6.12323e-15	-5.42079e-06	1.000000e-01	
+
+                                        
+                                       Transient Analysis  Sun Apr 26 18:25:24  2020
+--------------------------------------------------------------------------------
+Index   time            v1#branch       
+--------------------------------------------------------------------------------
+0	0.000000e+00	-1.21023e-25	
+1	1.000000e-05	-7.18261e-09	
+2	2.000000e-05	-9.27278e-09	
+3	4.000000e-05	-1.53546e-08	
+4	8.000000e-05	-5.02056e-08	
+5	1.600000e-04	-8.02233e-07	
+6	3.200000e-04	-6.21680e-05	
+7	5.343163e-04	-3.23639e-04	
+8	7.511639e-04	-6.28549e-04	
+9	1.014269e-03	-1.00538e-03	
+10	1.540478e-03	-1.74117e-03	
+11	2.592896e-03	-3.02708e-03	
+12	4.592896e-03	-4.33317e-03	
+13	6.592896e-03	-3.76704e-03	
+14	8.592896e-03	-1.55871e-03	
+15	1.059290e-02	4.047519e-04	
+16	1.168731e-02	1.937990e-03	
+17	1.260627e-02	3.041544e-03	
+18	1.351234e-02	3.843251e-03	
+19	1.532450e-02	4.347845e-03	
+20	1.732450e-02	3.113754e-03	
+21	1.932450e-02	5.209497e-04	
+22	2.109176e-02	-1.11569e-03	
+23	2.284255e-02	-3.28113e-03	
+24	2.446551e-02	-4.30399e-03	
+25	2.603276e-02	-4.11545e-03	
+26	2.803276e-02	-2.29936e-03	
+27	3.003276e-02	1.323245e-08	
+28	3.181211e-02	2.101648e-03	
+29	3.353100e-02	3.856183e-03	
+30	3.548425e-02	4.316048e-03	
+31	3.748425e-02	2.944182e-03	
+32	3.948425e-02	2.986236e-04	
+33	4.084025e-02	-7.56052e-04	
+34	4.232563e-02	-2.73131e-03	
+35	4.432563e-02	-4.26261e-03	
+36	4.614809e-02	-4.05512e-03	
+37	4.814809e-02	-2.15266e-03	
+38	5.014809e-02	5.269492e-07	
+39	5.106495e-02	1.077659e-03	
+40	5.192012e-02	2.240032e-03	
+41	5.288026e-02	3.317656e-03	
+42	5.433190e-02	4.264945e-03	
+43	5.633190e-02	3.946775e-03	
+44	5.833190e-02	1.912051e-03	
+45	6.033190e-02	-7.34851e-05	
+46	6.201058e-02	-2.35381e-03	
+47	6.359054e-02	-3.89659e-03	
+48	6.524527e-02	-4.35879e-03	
+49	6.724527e-02	-3.19449e-03	
+50	6.924527e-02	-6.33382e-04	
+51	7.069407e-02	5.472455e-04	
+52	7.237416e-02	2.786905e-03	
+53	7.412120e-02	4.185885e-03	
+54	7.582571e-02	4.207954e-03	
+
+Index   time            v1#branch       
+--------------------------------------------------------------------------------
+55	7.782571e-02	2.553494e-03	
+56	7.982571e-02	1.314865e-06	
+57	8.082874e-02	-7.39190e-04	
+58	8.192022e-02	-2.24020e-03	
+59	8.332868e-02	-3.70751e-03	
+60	8.468753e-02	-4.34972e-03	
+61	8.668753e-02	-3.69479e-03	
+62	8.868753e-02	-1.42731e-03	
+63	9.068753e-02	5.379516e-04	
+64	9.256918e-02	3.002108e-03	
+65	9.445688e-02	4.301241e-03	
+66	9.621191e-02	4.019265e-03	
+67	9.821191e-02	2.070094e-03	
+68	1.000000e-01	-5.42079e-09	
diff --git a/blocks/simulationAPI/helpers/sample_files/plot_data_i.txt b/blocks/simulationAPI/helpers/sample_files/plot_data_i.txt
new file mode 100644
index 00000000..92cdd2ad
--- /dev/null
+++ b/blocks/simulationAPI/helpers/sample_files/plot_data_i.txt
@@ -0,0 +1,105 @@
+                                        
+                                       Transient Analysis  Fri Apr 24 23:37:52  2020
+--------------------------------------------------------------------------------
+Index   time            v1#branch       v2#branch       
+--------------------------------------------------------------------------------
+0	0.000000e+00	0.000000e+00	-1.44364e-11	
+1	5.000000e-06	-1.08398e-06	4.220864e-07	
+2	1.000000e-05	-1.07855e-06	4.224245e-07	
+3	2.000000e-05	-1.06529e-06	4.230573e-07	
+4	3.122027e-05	-1.09702e-06	4.237329e-07	
+5	4.261616e-05	-1.40088e-06	4.242644e-07	
+6	5.453771e-05	-1.55219e-06	4.227076e-07	
+7	7.296709e-05	-1.47175e-06	4.041312e-07	
+8	9.144949e-05	-1.55369e-06	3.516220e-07	
+9	1.284143e-04	-1.47267e-06	8.098758e-08	
+10	2.023439e-04	-1.56072e-06	-1.30887e-06	
+11	3.502031e-04	-1.49613e-06	-4.87527e-06	
+12	5.000000e-04	-1.14389e-06	2.970244e-07	
+13	5.010313e-04	-4.25119e-10	-3.23614e-12	
+14	5.030940e-04	-1.18963e-10	-3.37536e-12	
+15	5.072194e-04	-4.25205e-10	-3.24360e-12	
+16	5.154701e-04	-1.19414e-10	-3.39089e-12	
+17	5.319715e-04	-4.25984e-10	-3.27483e-12	
+18	5.649744e-04	-1.21104e-10	-3.45147e-12	
+19	6.309801e-04	-4.29615e-10	-3.39337e-12	
+20	7.629914e-04	-1.29787e-10	-3.68303e-12	
+21	1.027014e-03	-4.55655e-10	-3.84134e-12	
+22	1.555060e-03	-2.74051e-10	-4.52651e-12	
+23	2.611151e-03	-4.60756e-09	-5.32636e-12	
+24	4.611151e-03	-2.18631e-08	-6.71107e-12	
+25	6.611151e-03	-2.46290e-09	-7.28349e-12	
+26	8.611151e-03	-1.19971e-08	-7.79571e-12	
+27	1.061115e-02	4.330151e-09	-7.84913e-12	
+28	1.261115e-02	-8.21108e-09	-8.08054e-12	
+29	1.461115e-02	6.287619e-09	-7.99010e-12	
+30	1.656886e-02	-7.23655e-09	-8.14967e-12	
+31	1.850200e-02	6.763943e-09	-8.02346e-12	
+32	2.042896e-02	-7.00042e-09	-8.16602e-12	
+33	2.236466e-02	6.884703e-09	-8.03164e-12	
+34	2.430032e-02	-6.93989e-09	-8.17011e-12	
+35	2.623482e-02	6.912354e-09	-8.03390e-12	
+36	2.816446e-02	-6.92609e-09	-8.17090e-12	
+37	3.009657e-02	6.919218e-09	-8.03452e-12	
+38	3.202839e-02	-6.92264e-09	-8.17116e-12	
+39	3.396181e-02	6.920921e-09	-8.03442e-12	
+40	3.589384e-02	-6.92177e-09	-8.17133e-12	
+41	3.782674e-02	6.921336e-09	-8.03423e-12	
+42	3.975935e-02	-6.92154e-09	-8.17124e-12	
+43	4.175935e-02	6.921431e-09	-8.03435e-12	
+44	4.375935e-02	-6.92148e-09	-8.17124e-12	
+45	4.575935e-02	6.921445e-09	-8.03435e-12	
+46	4.775935e-02	-6.92145e-09	-8.17124e-12	
+47	4.975935e-02	6.921438e-09	-8.03435e-12	
+48	5.000000e-02	-6.92139e-09	-8.17124e-12	
+49	5.000344e-02	1.073445e-06	-2.29261e-07	
+50	5.001031e-02	1.062517e-06	-2.18132e-07	
+51	5.002405e-02	1.057252e-06	-2.12216e-07	
+52	5.003890e-02	1.179433e-06	-3.00119e-07	
+53	5.005236e-02	1.647596e-06	-9.67225e-07	
+54	5.006621e-02	1.362141e-06	-2.32705e-06	
+
+Index   time            v1#branch       v2#branch       
+--------------------------------------------------------------------------------
+55	5.007947e-02	1.653940e-06	-4.70595e-06	
+56	5.009790e-02	1.361331e-06	-8.93152e-06	
+57	5.012743e-02	1.653052e-06	-1.88474e-05	
+58	5.017360e-02	1.361145e-06	-4.08411e-05	
+59	5.024499e-02	1.654734e-06	-9.18089e-05	
+60	5.035306e-02	1.367456e-06	-2.14666e-04	
+61	5.050000e-02	1.308831e-06	-4.81732e-04	
+62	5.050138e-02	2.449697e-10	-4.81265e-04	
+63	5.050415e-02	-7.33525e-11	-4.81204e-04	
+64	5.050886e-02	2.448991e-10	-4.81102e-04	
+65	5.051827e-02	-7.32262e-11	-4.80897e-04	
+66	5.053710e-02	2.450062e-10	-4.80485e-04	
+67	5.057476e-02	-7.29317e-11	-4.79658e-04	
+68	5.065008e-02	2.455833e-10	-4.77988e-04	
+69	5.080073e-02	-7.16665e-11	-4.74582e-04	
+70	5.110201e-02	2.485198e-10	-4.67524e-04	
+71	5.170459e-02	-6.33768e-11	-4.52499e-04	
+72	5.290973e-02	2.876237e-10	-4.19529e-04	
+73	5.490973e-02	5.463069e-10	-3.59768e-04	
+74	5.690973e-02	5.709571e-09	-2.99143e-04	
+75	5.890973e-02	6.043230e-09	-2.42387e-04	
+76	6.090973e-02	6.573391e-09	-1.92306e-04	
+77	6.290973e-02	4.836922e-09	-1.50032e-04	
+78	6.490973e-02	4.729522e-09	-1.15521e-04	
+79	6.690973e-02	2.963431e-09	-8.80490e-05	
+80	6.890973e-02	3.065391e-09	-6.65913e-05	
+81	7.090973e-02	1.579419e-09	-5.00669e-05	
+82	7.290973e-02	1.955450e-09	-3.74849e-05	
+83	7.490973e-02	7.124459e-10	-2.79620e-05	
+84	7.690973e-02	1.290972e-09	-2.08077e-05	
+85	7.890973e-02	2.069733e-10	-1.54552e-05	
+86	8.090973e-02	9.095159e-10	-1.14644e-05	
+87	8.290973e-02	-7.92520e-11	-8.49513e-06	
+88	8.490973e-02	6.956285e-10	-6.29066e-06	
+89	8.690973e-02	-2.38603e-10	-4.65524e-06	
+90	8.890973e-02	5.771652e-10	-3.44402e-06	
+91	9.090973e-02	-3.26527e-10	-2.54674e-06	
+92	9.290973e-02	5.119823e-10	-1.88325e-06	
+93	9.490973e-02	-3.74807e-10	-1.39194e-06	
+94	9.690973e-02	4.762428e-10	-1.02913e-06	
+95	9.890973e-02	-4.01248e-10	-7.60373e-07	
+96	1.000000e-01	4.601805e-10	-6.45655e-07	
diff --git a/blocks/simulationAPI/helpers/sample_files/plot_data_v.txt b/blocks/simulationAPI/helpers/sample_files/plot_data_v.txt
new file mode 100644
index 00000000..4caaa152
--- /dev/null
+++ b/blocks/simulationAPI/helpers/sample_files/plot_data_v.txt
@@ -0,0 +1,105 @@
+                                        
+                                       Transient Analysis  Fri Apr 24 23:37:52  2020
+--------------------------------------------------------------------------------
+Index   time            in              out             vcc             
+--------------------------------------------------------------------------------
+0	0.000000e+00	0.000000e+00	5.000000e+00	5.000000e+00	
+1	5.000000e-06	5.000000e-02	5.000002e+00	5.000000e+00	
+2	1.000000e-05	1.000000e-01	5.000004e+00	5.000000e+00	
+3	2.000000e-05	2.000000e-01	5.000008e+00	5.000000e+00	
+4	3.122027e-05	3.122027e-01	5.000013e+00	5.000000e+00	
+5	4.261616e-05	4.261616e-01	5.000017e+00	5.000000e+00	
+6	5.453771e-05	5.453771e-01	5.000005e+00	5.000000e+00	
+7	7.296709e-05	7.296709e-01	4.999871e+00	5.000000e+00	
+8	9.144949e-05	9.144949e-01	4.999479e+00	5.000000e+00	
+9	1.284143e-04	1.284143e+00	4.997339e+00	5.000000e+00	
+10	2.023439e-04	2.023439e+00	4.984459e+00	5.000000e+00	
+11	3.502031e-04	3.502031e+00	4.910883e+00	5.000000e+00	
+12	5.000000e-04	5.000000e+00	4.767735e+00	5.000000e+00	
+13	5.010313e-04	5.000000e+00	4.766519e+00	5.000000e+00	
+14	5.030940e-04	5.000000e+00	4.764088e+00	5.000000e+00	
+15	5.072194e-04	5.000000e+00	4.759227e+00	5.000000e+00	
+16	5.154701e-04	5.000000e+00	4.749516e+00	5.000000e+00	
+17	5.319715e-04	5.000000e+00	4.730128e+00	5.000000e+00	
+18	5.649744e-04	5.000000e+00	4.691496e+00	5.000000e+00	
+19	6.309801e-04	5.000000e+00	4.614812e+00	5.000000e+00	
+20	7.629914e-04	5.000000e+00	4.463791e+00	5.000000e+00	
+21	1.027014e-03	5.000000e+00	4.171338e+00	5.000000e+00	
+22	1.555060e-03	5.000000e+00	3.625886e+00	5.000000e+00	
+23	2.611151e-03	5.000000e+00	2.693993e+00	5.000000e+00	
+24	4.611151e-03	5.000000e+00	1.452843e+00	5.000000e+00	
+25	6.611151e-03	5.000000e+00	7.469712e-01	5.000000e+00	
+26	8.611151e-03	5.000000e+00	3.737508e-01	5.000000e+00	
+27	1.061115e-02	5.000000e+00	1.843359e-01	5.000000e+00	
+28	1.261115e-02	5.000000e+00	9.025318e-02	5.000000e+00	
+29	1.461115e-02	5.000000e+00	4.402884e-02	5.000000e+00	
+30	1.656886e-02	5.000000e+00	2.179764e-02	5.000000e+00	
+31	1.850200e-02	5.000000e+00	1.088616e-02	5.000000e+00	
+32	2.042896e-02	5.000000e+00	5.447191e-03	5.000000e+00	
+33	2.236466e-02	5.000000e+00	2.715556e-03	5.000000e+00	
+34	2.430032e-02	5.000000e+00	1.353813e-03	5.000000e+00	
+35	2.623482e-02	5.000000e+00	6.752433e-04	5.000000e+00	
+36	2.816446e-02	5.000000e+00	3.374345e-04	5.000000e+00	
+37	3.009657e-02	5.000000e+00	1.684679e-04	5.000000e+00	
+38	3.202839e-02	5.000000e+00	8.412501e-05	5.000000e+00	
+39	3.396181e-02	5.000000e+00	4.198760e-05	5.000000e+00	
+40	3.589384e-02	5.000000e+00	2.097374e-05	5.000000e+00	
+41	3.782674e-02	5.000000e+00	1.047916e-05	5.000000e+00	
+42	3.975935e-02	5.000000e+00	5.242170e-06	5.000000e+00	
+43	4.175935e-02	5.000000e+00	2.560529e-06	5.000000e+00	
+44	4.375935e-02	5.000000e+00	1.256841e-06	5.000000e+00	
+45	4.575935e-02	5.000000e+00	6.230583e-07	5.000000e+00	
+46	4.775935e-02	5.000000e+00	3.149387e-07	5.000000e+00	
+47	4.975935e-02	5.000000e+00	1.651510e-07	5.000000e+00	
+48	5.000000e-02	5.000000e+00	1.538261e-07	5.000000e+00	
+49	5.000344e-02	4.965649e+00	-1.29499e-06	5.000000e+00	
+50	5.001031e-02	4.896947e+00	-4.18960e-06	5.000000e+00	
+51	5.002405e-02	4.759543e+00	-9.96317e-06	5.000000e+00	
+52	5.003890e-02	4.610955e+00	-1.64325e-05	5.000000e+00	
+53	5.005236e-02	4.476410e+00	-2.11536e-05	5.000000e+00	
+54	5.006621e-02	4.337862e+00	-1.32460e-05	5.000000e+00	
+
+
+--------------------------------------------------------------------------------
+55	5.007947e-02	4.205277e+00	1.896545e-05	5.000000e+00	
+56	5.009790e-02	4.021012e+00	1.240988e-04	5.000000e+00	
+57	5.012743e-02	3.725657e+00	4.986274e-04	5.000000e+00	
+58	5.017360e-02	3.264038e+00	1.804424e-03	5.000000e+00	
+59	5.024499e-02	2.550110e+00	6.343132e-03	5.000000e+00	
+60	5.035306e-02	1.469424e+00	2.230900e-02	5.000000e+00	
+61	5.050000e-02	0.000000e+00	7.287392e-02	5.000000e+00	
+62	5.050138e-02	0.000000e+00	7.353952e-02	5.000000e+00	
+63	5.050415e-02	0.000000e+00	7.487065e-02	5.000000e+00	
+64	5.050886e-02	0.000000e+00	7.713572e-02	5.000000e+00	
+65	5.051827e-02	0.000000e+00	8.166442e-02	5.000000e+00	
+66	5.053710e-02	0.000000e+00	9.071601e-02	5.000000e+00	
+67	5.057476e-02	0.000000e+00	1.087959e-01	5.000000e+00	
+68	5.065008e-02	0.000000e+00	1.448616e-01	5.000000e+00	
+69	5.080073e-02	0.000000e+00	2.166106e-01	5.000000e+00	
+70	5.110201e-02	0.000000e+00	3.585322e-01	5.000000e+00	
+71	5.170459e-02	0.000000e+00	6.357220e-01	5.000000e+00	
+72	5.290973e-02	0.000000e+00	1.161181e+00	5.000000e+00	
+73	5.490973e-02	0.000000e+00	1.940478e+00	5.000000e+00	
+74	5.690973e-02	0.000000e+00	2.599383e+00	5.000000e+00	
+75	5.890973e-02	0.000000e+00	3.140901e+00	5.000000e+00	
+76	6.090973e-02	0.000000e+00	3.575581e+00	5.000000e+00	
+77	6.290973e-02	0.000000e+00	3.917907e+00	5.000000e+00	
+78	6.490973e-02	0.000000e+00	4.183450e+00	5.000000e+00	
+79	6.690973e-02	0.000000e+00	4.387012e+00	5.000000e+00	
+80	6.890973e-02	0.000000e+00	4.541646e+00	5.000000e+00	
+81	7.090973e-02	0.000000e+00	4.658300e+00	5.000000e+00	
+82	7.290973e-02	0.000000e+00	4.745848e+00	5.000000e+00	
+83	7.490973e-02	0.000000e+00	4.811292e+00	5.000000e+00	
+84	7.690973e-02	0.000000e+00	4.860060e+00	5.000000e+00	
+85	7.890973e-02	0.000000e+00	4.896321e+00	5.000000e+00	
+86	8.090973e-02	0.000000e+00	4.923240e+00	5.000000e+00	
+87	8.290973e-02	0.000000e+00	4.943198e+00	5.000000e+00	
+88	8.490973e-02	0.000000e+00	4.957983e+00	5.000000e+00	
+89	8.690973e-02	0.000000e+00	4.968929e+00	5.000000e+00	
+90	8.890973e-02	0.000000e+00	4.977028e+00	5.000000e+00	
+91	9.090973e-02	0.000000e+00	4.983018e+00	5.000000e+00	
+92	9.290973e-02	0.000000e+00	4.987448e+00	5.000000e+00	
+93	9.490973e-02	0.000000e+00	4.990723e+00	5.000000e+00	
+94	9.690973e-02	0.000000e+00	4.993144e+00	5.000000e+00	
+95	9.890973e-02	0.000000e+00	4.994933e+00	5.000000e+00	
+96	1.000000e-01	0.000000e+00	4.995700e+00	5.000000e+00	
diff --git a/blocks/simulationAPI/models.py b/blocks/simulationAPI/models.py
new file mode 100644
index 00000000..7dd5c814
--- /dev/null
+++ b/blocks/simulationAPI/models.py
@@ -0,0 +1,33 @@
+from django.db import models
+from django.core.files.storage import FileSystemStorage
+from django.conf import settings
+import uuid
+
+
+class Task(models.Model):
+    # User details for auth to be stored along with task.
+    # user = models.ForeignKey(User, on_delete=models.CASCADE)
+
+    task_time = models.DateTimeField(auto_now=True, db_index=True)
+    task_id = models.UUIDField(
+        primary_key=True, default=uuid.uuid4, editable=False)
+
+    def save(self, *args, **kwargs):
+        super(Task, self).save(*args, **kwargs)
+
+
+class spiceFile(models.Model):
+
+    file_id = models.UUIDField(
+        primary_key=True, default=uuid.uuid4, editable=False)
+    file = models.FileField(
+        storage=FileSystemStorage(location=settings.MEDIA_ROOT))
+    upload_time = models.DateTimeField(auto_now=True, db_index=True)
+
+    # User details for auth to be stored along with task.
+    # owner = models.ForeignKey('auth.User')
+    task = models.ForeignKey(
+        Task, on_delete=models.CASCADE, related_name='file')
+
+    def save(self, *args, **kwargs):
+        super(spiceFile, self).save(*args, **kwargs)
diff --git a/blocks/simulationAPI/serializers.py b/blocks/simulationAPI/serializers.py
new file mode 100644
index 00000000..eaca0b50
--- /dev/null
+++ b/blocks/simulationAPI/serializers.py
@@ -0,0 +1,31 @@
+import logging
+from rest_framework import serializers
+from simulationAPI.models import spiceFile, Task
+
+logger = logging.getLogger(__name__)
+
+
+class FileSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = spiceFile
+        fields = ('file', 'upload_time', 'file_id', 'task')
+
+
+class TaskSerializer(serializers.HyperlinkedModelSerializer):
+    # user = serializers.ReadOnlyField(source='user.username')
+    file = FileSerializer(many=True, read_only=True)
+
+    class Meta:
+        model = Task
+        fields = ('task_id', 'task_time', 'file')
+
+    def create(self, validated_data):
+        # Takes file from request and stores it along with a taskid
+        files_data = list(self.context.get(
+            'view').request.FILES.getlist("file"))[0]
+        logger.info('File Upload')
+        task = Task.objects.create()
+        logger.info('task: '+str(task))
+        spiceFile.objects.create(task=task, file=files_data)
+        logger.info('Created Object for:' + files_data.name)
+        return task
diff --git a/blocks/simulationAPI/tasks.py b/blocks/simulationAPI/tasks.py
new file mode 100644
index 00000000..58f809c3
--- /dev/null
+++ b/blocks/simulationAPI/tasks.py
@@ -0,0 +1,34 @@
+from celery import shared_task, current_task
+from celery import states
+from simulationAPI.helpers import ngspice_helper
+from celery.exceptions import Ignore
+import traceback
+from simulationAPI.models import spiceFile
+
+
+@shared_task
+def process_task(task_id):
+    try:
+
+        file_obj = list(spiceFile.objects.filter(task_id=task_id))[0]
+        file_path = file_obj.file.path
+        file_id = file_obj.file_id
+
+        print("Processing ", file_path, file_id)
+
+        current_task.update_state(
+            state='PROGRESS',
+            meta={'current_process': 'Started Processing File'})
+
+        output = ngspice_helper.ExecXml(file_path, file_id)
+        current_task.update_state(
+            state='PROGRESS',
+            meta={'current_process': 'Processed Xml, Loading Output'})
+        return output
+
+    except Exception as e:
+        current_task.update_state(state=states.FAILURE, meta={
+            'exc_type': type(e).__name__,
+            'exc_message': traceback.format_exc().split('\n')})
+        print('Exception Occured: ', type(e).__name__)
+        raise Ignore()
diff --git a/blocks/simulationAPI/tests.py b/blocks/simulationAPI/tests.py
new file mode 100644
index 00000000..a39b155a
--- /dev/null
+++ b/blocks/simulationAPI/tests.py
@@ -0,0 +1 @@
+# Create your tests here.
diff --git a/blocks/simulationAPI/urls.py b/blocks/simulationAPI/urls.py
new file mode 100644
index 00000000..69fe23ee
--- /dev/null
+++ b/blocks/simulationAPI/urls.py
@@ -0,0 +1,12 @@
+from django.urls import path
+from simulationAPI import views as simulationAPI_views
+
+
+urlpatterns = [
+    path('upload', simulationAPI_views.XmlUploader.as_view(),
+         name='xmlUploader'),
+
+    path('status/<uuid:task_id>',
+         simulationAPI_views.CeleryResultView.as_view(), name='celery_status'),
+
+]
diff --git a/blocks/simulationAPI/views.py b/blocks/simulationAPI/views.py
new file mode 100644
index 00000000..7ffc98d3
--- /dev/null
+++ b/blocks/simulationAPI/views.py
@@ -0,0 +1,66 @@
+from simulationAPI.serializers import TaskSerializer
+from simulationAPI.tasks import process_task
+from rest_framework import status
+from rest_framework.exceptions import ValidationError
+from rest_framework.parsers import MultiPartParser, FormParser
+from rest_framework.permissions import AllowAny
+from rest_framework.views import APIView
+from rest_framework.response import Response
+from celery.result import AsyncResult
+import uuid
+import logging
+
+
+logger = logging.getLogger(__name__)
+
+
+class XmlUploader(APIView):
+    '''
+    API for XmlUpload
+
+    Requires a multipart/form-data POST Request with Xml file in the
+    'file' parameter
+    '''
+    permission_classes = (AllowAny,)
+    parser_classes = (MultiPartParser, FormParser,)
+
+    def post(self, request, *args, **kwargs):
+        logger.info('Got POST for Xml upload: ')
+        logger.info(request.data)
+        serializer = TaskSerializer(data=request.data, context={'view': self})
+        if serializer.is_valid():
+            serializer.save()
+            task_id = serializer.data['task_id']
+            celery_task = process_task.apply_async(
+                kwargs={'task_id': str(task_id)}, task_id=str(task_id))
+            response_data = {
+                'state': celery_task.state,
+                'details': serializer.data,
+            }
+            return Response(response_data)
+
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+
+class CeleryResultView(APIView):
+    """
+
+    Returns Simulation results for 'task_id' provided after
+    uploading the xml
+    /api/task/<uuid>
+
+    """
+    permission_classes = (AllowAny,)
+    methods = ['GET']
+
+    def get(self, request, task_id):
+
+        if isinstance(task_id, uuid.UUID):
+            celery_result = AsyncResult(str(task_id))
+            response_data = {
+                'state': celery_result.state,
+                'details': celery_result.info
+            }
+            return Response(response_data)
+        else:
+            raise ValidationError('Invalid uuid format')