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box.session.euid() | Tarantool
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box.session.euid()

box.session.euid()

box.session.euid()
Return:the effective user ID of the current user.

This is the same as box.session.uid(), except in two cases:

  • The first case: if the call to box.session.euid() is within a function invoked by box.session.su(user-name, function-to-execute) – in that case, box.session.euid() returns the ID of the changed user (the user who is specified by the user-name parameter of the su function) but box.session.uid() returns the ID of the original user (the user who is calling the su function).
  • The second case: if the call to box.session.euid() is within a function specified with box.schema.func.create(function-name, {setuid= true}) and the binary protocol is in use – in that case, box.session.euid() returns the ID of the user who created “function-name” but box.session.uid() returns the ID of the the user who is calling “function-name”.
Rtype:number

Example:

tarantool> box.session.su('admin')
---
...
tarantool> box.session.uid(), box.session.euid()
---
- 1
- 1
...
tarantool> function f() return {box.session.uid(),box.session.euid()} end
---
...
tarantool> box.session.su('guest', f)
---
- - 1
  - 0
...