I am working on an OpenSocial project and its installed via composer. I am having a folder structure as below:

 - composer.json   
 - composer.lock   
 - html 
  (Drupal Installation.)
 - vendor 
  (Dependencies)

When creating, should I add the all files including composer.json and vendor to git or just add the content of html directory?

Note In some cases, for example in a normal D8 installation the composer files and vendor directories are in the same directory as Drupal installation.

I am working on an OpenSocial project and its installed via composer. I am having a folder structure as below:

• composer.json
• composer.lock
• html
  (Drupal Installation.)
• vendor
  (Dependencies)

When creating, should I add the all files including composer.json and vendor to the Git repository, or just the html directory?

In some cases, for example in a normal Drupal 8 installation the Composer files and the vendor directory are in the same directory as the Drupal files.