> For the complete documentation index, see [llms.txt](https://docs.oneweb.tech/oneweb/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.oneweb.tech/oneweb/api-guide/session-manipulation-api.md).

# Session Manipulation API

Oneweb 4.0 platform provides App Runtime support for CRUD operations. When application need to modify some data by the CRUD operation, ONEWEB has a list of APIs for session manipulation of data, before saving data to database or after reading data from database. This chapter will show example how to modify session.