Multi-project pipelines

I have configured multi project pipeline setup. I have created two projects, first one let say A and second one let say B. My first scenario was to trigger a pipeline in project B by A, which i have done successfully. My next scenario is what if we want to create a pipeline in project B of specific branch by project A. Kindly help me to resolve this scenario.


Is it possible to send the content of your giltab-ci.yml file for the first scenario ?