flipped-aurora/gin-vue-admin · error

mysql config invalid

Error message

mysql config invalid

What it means

MysqlInitHandler.WriteConfig writes the MySQL settings chosen during init back into config.yaml (setting System.DbType="mysql" and rotating the JWT signing key). It type-asserts the context value "config" to config.Mysql and returns "mysql config invalid" when the assertion fails, meaning the context was not produced by this handler's EnsureDB.

Solutions

1. Obtain the context from MysqlInitHandler.EnsureDB (which stores conf.ToMysqlConfig() under key "config") before calling WriteConfig.
2. Prefer the standard InitDBService.InitDB flow with DBType="mysql", which guarantees handler pairing.
3. Verify no other handler overwrote the "config" key with a different DB struct.
4. In custom code, set ctx = context.WithValue(ctx, "config", conf.ToMysqlConfig()) first.

Example fix

// before
ctx, _ = pgsqlHandler.EnsureDB(ctx, &conf)
err = mysqlHandler.WriteConfig(ctx) // -> mysql config invalid
// after
ctx, _ = mysqlHandler.EnsureDB(ctx, &conf)
err = mysqlHandler.WriteConfig(ctx)

if _, ok := ctx.Value("config").(config.Mysql); !ok {
	return errors.New("mysql config missing in context")
}

func hasMysqlConfig(ctx context.Context) bool {
	_, ok := ctx.Value("config").(config.Mysql)
	return ok
}

err := handler.WriteConfig(ctx)
if err != nil && err.Error() == "mysql config invalid" {
	// ctx not produced by MysqlInitHandler.EnsureDB; rerun EnsureDB first
}

When it happens

Trigger: Calling MysqlInitHandler.WriteConfig(ctx) where ctx has no "config" value, or the value is config.Pgsql/Mssql/Sqlite (set by another handler) rather than config.Mysql.

Common situations: Calling WriteConfig from a different handler's pipeline; custom initialization code building its own context; tests invoking WriteConfig without running EnsureDB first.

Related errors

• 上游接口路径不能为空
• 无可用初始化过程，请检查初始化是否已执行完成
• 日志目录不可读取
• minio client 初始化失败, err:
• mssql config invalid

AI-assisted analysis of flipped-aurora/gin-vue-admin@3136500ef3 (2026-08-31). Data as JSON: /api/errors/d83d8db257caffb4. Report an issue: GitHub.

Appendix: source

Thrown at server/service/system/sys_initdb_mysql.go:31

	"github.com/flipped-aurora/gin-vue-admin/server/global"
	"github.com/flipped-aurora/gin-vue-admin/server/model/system/request"
	"github.com/google/uuid"
	"gorm.io/driver/mysql"
	"gorm.io/gorm"
)

type MysqlInitHandler struct{}

func NewMysqlInitHandler() *MysqlInitHandler {
	return &MysqlInitHandler{}
}

// WriteConfig mysql回写配置
func (h MysqlInitHandler) WriteConfig(ctx context.Context) error {
	c, ok := ctx.Value("config").(config.Mysql)
	if !ok {
		return errors.New("mysql config invalid")
	}
	global.GVA_CONFIG.System.DbType = "mysql"
	global.GVA_CONFIG.Mysql = c
	global.GVA_CONFIG.JWT.SigningKey = uuid.New().String()
	cs := utils.StructToMap(global.GVA_CONFIG)
	for k, v := range cs {
		global.GVA_VP.Set(k, v)
	}
	global.GVA_ACTIVE_DBNAME = &c.Dbname
	return global.GVA_VP.WriteConfig()
}

// EnsureDB 创建数据库并初始化 mysql
func (h MysqlInitHandler) EnsureDB(ctx context.Context, conf *request.InitDB) (next context.Context, err error) {
	if s, ok := ctx.Value("dbtype").(string); !ok || s != "mysql" {
		return ctx, ErrDBTypeMismatch
	}

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