def try_read_file():
print("== try_read_file ===========================================")
# Configure variables to provide to class sample
#############################################################
jsonkeys = ['a', 'b', 'd']
input_path = os.path.join(os.getcwd(), "input/")
# Create instance
parser = JsonManager('parser')
# Set array with keys
parser.set_key_array(jsonkeys)
# Set input path
parser.set_input_path(input_path)
# Parse json file
successful, json_data = parser.read_json_from_file("test.json")
print("successful? %s" % successful)
# Get a value if exist or print error
value = parser.get_value(json_data, 'f')
print("Value is: %s" % value)
# Print and get a value
value = parser.print_json_value(json_data, 'a')
# Print all json values
parser.print_all_json_values(json_data)
# Print only values in array
parser.print_arraykey_json_values(json_data, jsonkeys)
print("==================================================================")
return
