How to use raydium sdk to build a swap?

Could you please elaborate on the process of utilizing the Raydium SDK to create a swap functionality within a decentralized finance application? What are the key steps and considerations that one should take into account during the integration process? Additionally, are there any prerequisites or prerequisites that are necessary before embarking on this journey? Your guidance would be invaluable in understanding the intricacies of leveraging the Raydium SDK for swap development.