Draft: Resolve "Développer un component dynamique pour afficher une courbe x,y"

Closes #124

services/src/anis_services/app.py

@@ -212,6 +212,7 @@ def create_app():
         x_column = request.args.get('xcolumn')
         y_column = request.args.get('ycolumn')
         hdu = request.args.get('hdu')
+        hdu = int(hdu)
         result =  dict()
         if file_name is None:
           return {"message": "Parameter filename is mandatory"}, 400
@@ -225,7 +226,7 @@ def create_app():
             file_path = utils.get_file_path(dname, file_name)
 
             with  fits.open(file_path) as hdulist:
-              data = hdulist[1].data
+              data = hdulist[hdu].data
               result = {
                  "x" : [ float(el)  for el in list(data[x_column])],
                  "y":[ float(el) for el in list(data[y_column])]