1. A computer-implemented method comprising: selecting, by a computer-based system for generating computer-executable code for a message flow and based on a type of message flow, a design pattern, wherein the design pattern decouples a service-requesting component and a service-providing component; and generating, by the computer-based system, a computer-executable script for the message flow based on at least one of the type of the message flow, message flow parameters, and the design pattern.