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local custom_error = box.error.new({ code = 500,
reason = 'Internal server error' })

box.error(custom_error)
--[[
---
- error: Internal server error
...
--]]
Raise the error defined by the specified parameters.
an error description
(optional) a numeric code for this error
(optional) an error type
**Example 1**
box.error { code = 500,
reason = 'Custom server error' }
--[[
---
- error: Custom server error
...
--]]
**Example 2: custom type**
box.error { code = 500,
reason = 'Internal server error',
type = 'CustomInternalError' }
--[[
---
- error: Internal server error
...
--]]
Raise the error defined by the specified type and description.
an error type
description arguments
**Example 1: without arguments**
box.error('CustomConnectionError', 'cannot connect to the given port')
--[[
---
- error: cannot connect to the given port
...
--]]
**Example 2: with arguments**
box.error('CustomConnectionError', '%s cannot connect to the port %u', 'client', 8080)
--[[
---
- error: client cannot connect to the port 8080
...
--]]
Raise a predefined :ref:`Tarantool error <error_codes>` specified by its identifier. You can see all Tarantool errors in the `errcode.h <https://github.com/tarantool/tarantool/blob/master/src/box/errcode.h>`_ file.
a pre-defined error identifier; Lua constants that correspond to those Tarantool errors are defined as members of ``box.error``, for example, ``box.error.NO_SUCH_USER == 45``
**Example 1: no arguments**
box.error(box.error.READONLY)
--[[
---
- error: Can't modify data on a read-only instance
...
--]]
**Example 2: one argument**
box.error(box.error.NO_SUCH_USER, 'John')
--[[
---
- error: User 'John' is not found
...
--]]
**Example 3: two arguments**
box.error(box.error.CREATE_SPACE, 'my_space', 'the space already exists')
--[[
---
- error: 'Failed to create space ''my_space'': the space already exists'
...
--]]

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testing_project / Documentation: reference/reference_lua/box_error/error — English

box.error('CustomConnectionError', '%s cannot connect to the port %u', 'client', 8080)
--[[
---
- error: client cannot connect to the port 8080
...
--]]
a year ago
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String information

Flags
python-format, read-only
String age
a year ago
Last updated
a year ago
Source string age
a year ago
Translation file
string 23