이모티콘 입력할 곳 이렇게 바꿔준다
ALTER TABLE kbow.board MODIFY content TEXT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
db 연결부분에 charset 추가한다
const conn = maria.createConnection({
host : process.env.HOST,
port : parseInt(process.env.DB_PORT),
user: process.env.DB_USER,
password: process.env.PASSWORD,
database: process.env.DATABASE_URL,
charset : 'utf8mb4'
});