> For the complete documentation index, see [llms.txt](https://skyslit.gitbook.io/magicjs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://skyslit.gitbook.io/magicjs/api-references/backend.md).

# Backend

- [createBackendFunction() ](https://skyslit.gitbook.io/magicjs/api-references/backend/createbackendfunction.md)
- [data()](https://skyslit.gitbook.io/magicjs/api-references/backend/data.md)
- [io() ](https://skyslit.gitbook.io/magicjs/api-references/backend/io.md)
- [ServerInstance()](https://skyslit.gitbook.io/magicjs/api-references/backend/serverinstance.md)
- [utils](https://skyslit.gitbook.io/magicjs/api-references/backend/utils.md): The 'utils' module contains many handy functions, each serving a specific purpose to make the system work better.
- [hash()](https://skyslit.gitbook.io/magicjs/api-references/backend/utils/hash.md)
- [verifyHash()](https://skyslit.gitbook.io/magicjs/api-references/backend/utils/verifyhash.md)
- [initiateEmailVerification()](https://skyslit.gitbook.io/magicjs/api-references/backend/utils/initiateemailverification.md)
- [saveFileToUserUploads()](https://skyslit.gitbook.io/magicjs/api-references/backend/utils/savefiletouseruploads.md)
- [readFileFromUserUploads()](https://skyslit.gitbook.io/magicjs/api-references/backend/utils/readfilefromuseruploads.md)
- [removeFileFromUserUploads()](https://skyslit.gitbook.io/magicjs/api-references/backend/utils/removefilefromuseruploads.md)
- [assignRoleToUser()](https://skyslit.gitbook.io/magicjs/api-references/backend/utils/assignroletouser.md)
- [unassignRoleFromUser()](https://skyslit.gitbook.io/magicjs/api-references/backend/utils/unassignrolefromuser.md)
- [findAllRolesByUser()](https://skyslit.gitbook.io/magicjs/api-references/backend/utils/findallrolesbyuser.md)
- [isUserInAnyRoles()](https://skyslit.gitbook.io/magicjs/api-references/backend/utils/isuserinanyroles.md)
- [assignRoleToUser()](https://skyslit.gitbook.io/magicjs/api-references/backend/utils/assignroletouser-1.md)