The situation is the following: they gave me a folder with the back and front of a web page, but these in turn divide it into two different folders (two different visual studio solutions):
project->back
project->front
What I don't know is how the front, which is a different solution, is accessing the back controller since the back is a web api and is in another solution.
It should be noted that the front only has html, css and javascript files and the supposed connection is made with ajax, sending the data by json to the web api.
The front-end clearly can access the back-end for this to be possible, the project to which you want to access its methods, classes, as in the case of an api project, must be referenced in the front-end.
Here is the screen where one project is referenced to another. We must also take into account the architecture of the project, in this case the source-end does not directly access the Api project. In this project as the API you can also reference other projects. Cheers