GET /auth/register/check-username

Check if a username is already taken before user registration to prevent bulk registration and conflicts. Supports GET and POST methods. References: OWASP ASVS V2.2.

Request Parameters

Name	In	Type	Required	Default	Example	Constraints	Description
username	query	string	No				Username (GET method)

Request Body

Schema: dto.CheckUsernameRequest

Field	Type	Required	Example	Constraints	Description
username	string	Yes	john_doe		Username

Responses

Status	Description	Schema
200	Username availability check result	dto.CheckUsernameResponse
400	Invalid request parameters	gitee_com_linmes_authms_base_dto.SimpleResponse
500	Internal server error	gitee_com_linmes_authms_base_dto.SimpleResponse

Referenced Schemas

dto.CheckUsernameResponse

Check username availability result

Field	Type	Required	Example	Constraints	Description
available	boolean	No	True		Is available
username	string	No	john_doe		Username

gitee_com_linmes_authms_base_dto.SimpleResponse

Field	Type	Required	Example	Constraints	Description
code	integer	No
message	string	No
timestamp	string	No