How to call another api from same app in spring boot

I have two RestControllers for user and Company.

• CompanyController: fetch from and store company information to companies table using service and repo level.

• UsersController : It is used to fetch and store users.

• Relationship: Each user is associated with company(User hasOne company).

When new User get registered, we need to fetch company information by id and associate with user profile.

For this, I have one endpoint in CompanyController, named getCompanyInfo. I have to call that endpoint to fetch company data while saving user profile.

How to call another API from same app in Spring Boot?