chore: minor things

Author: kirillgroshkov

src/mysql.db.ts

@@ -60,7 +60,7 @@ export interface MysqlDBCfg extends PoolConfig {
 const BOOLEAN_TYPES = new Set(['TINY', 'TINYINT', 'INT'])
 const BOOLEAN_BIT_TYPES = new Set(['BIT'])
 
-export const typeCast: TypeCast = (field, next) => {
+const typeCast: TypeCast = (field, next) => {
   // cast to boolean
   if (field.length === 1) {
     if (BOOLEAN_BIT_TYPES.has(field.type)) {

src/mysqlKeyValueDB.ts

@@ -3,25 +3,18 @@ import { CommonDBCreateOptions, CommonKeyValueDB, KeyValueDBTuple } from '@natur
 import { pMap } from '@naturalcycles/js-lib'
 import { ReadableTyped } from '@naturalcycles/nodejs-lib'
 import { QueryOptions } from 'mysql'
-import { MysqlDB, MysqlDBCfg, typeCast } from './mysql.db'
+import { MysqlDB, MysqlDBCfg } from './mysql.db'
 
 interface KeyValueObject {
   id: string
   v: Buffer
 }
 
 export class MySQLKeyValueDB implements CommonKeyValueDB {
-  constructor(cfg: MysqlDBCfg = {}) {
-    this.cfg = {
-      typeCast,
-      ...cfg,
-    }
-
+  constructor(public cfg: MysqlDBCfg) {
     this.db = new MysqlDB(this.cfg)
   }
 
-  cfg: MysqlDBCfg
-
   db: MysqlDB
 
   async ping(): Promise<void> {