how i can get list of collection not the documents

hi im using flutter i can see option for getting list of documents but i want to get list of collections.

You need to use server sdk
https://appwrite.io/docs/server/databases?sdk=dart-default#databasesListCollections

If you need to do that on client side, you can create a collection with documents who contains all the collections names and if needed, their corresponding ID. You can create a function to update it automatically or handle that manually by creating a document every time you create a collection (and updating them manually) or also get the data from the function with the server SDK as bhksar said

@kanhaiya lal bohra Did you get it or do you need more help?