Firebase is service developed by Google and integrated in google cloud, that allow to have JSON data store type database online.
a service bought by Google in 2014 then integrated in Google ecosystem
and specifically google storage
Firebase is available here : firebase.google.com
a realtime database > the changes will be pushed to all the clients
a simple JSON Tree structure /projects/344 will store a JSON representing this specific project
A desktop software to manage your firebase database in a more powerful way than online console https://firebaseadmin.com
A full list of utiliies for firebase is available here https://github.com/afonsopacifer/awesome-firebase
Firebase have a limited query api
This post describe the current limitations, impossible to filter by multiple clause. And 3 workaround, filter on the front, compound keys or index.
Other are working on a library to be able to do where style query
you need to add the SDK
Look at the quick start example app
Use Angular fire2