#NEWLINE# def parse_json( self , req , name , field ) : #NEWLINE# #INDENT# 'Pull a json value from the request.' #NEWLINE# try : #NEWLINE# #INDENT# json_data = webapp2_extras . json . decode ( req . body ) #NEWLINE# #UNINDENT# except ValueError : #NEWLINE# #INDENT# return core . missing #NEWLINE# #UNINDENT# return core . get_value ( json_data , name , field , allow_many_nested = True )