Where to look for accessTokenUri, userAuthorizationUri, userInfoUri for OAuth2 authorization?

Question

Java

With OAuth2 authorization in Spring Boot, it is necessary to fill in the accessTokenUri, userAuthorizationUri, userInfoUri variables in the application.properties file, where I don’t know where to look for these values.
Could not find for Yandex and VK.
If you can link to a page in the documentation or how to make a request to get this data.
Thank you.