First steps first, https://mockflow.com is a really awesome prototyping tool!
I used it and managed a simple wireframe to list the possible functions and information that is required at each page.
This will allow my a simple ease of implementation as now I know how I can set up my web api.
For example, I can set the web api to pull information according to how it is parsed in the various pages.
Stick around for the next set of info which will list the web api’s endpoints and the information that is given at each step of the way!