title: Where to integrate getStream.io
body: <p>I am a noob in backend programming. I have been looking into getstream activity feed api for a while and I am still not clear where to integrate the api. Consider that I have built an Instagram like application using native android (say JAVA) and the backend is PHP or PYTHON. Is getStream api still helpful for me? If so should I be integrating in into frontend or backend?</p>