如何在 sequelize 连接对象中设置应用程序名称？

Question

总结：

我想在初始化新的 sequalize 对象时更改 connection string 的 application name。基于，我将dialectOptions的appName设置如下：

    let conn = new Sequelize(this.models.sequelize.config.database, this.models.sequelize.config.username,
                this.models.sequelize.config.password, {
                host: this.models.sequelize.config.host,
                dialect: this.models.sequelize.getDialect(),
                dialectOptions: {
                    appName: "userid=-2@gid=" + gid
                }
            });

问题：

当我执行类似以下代码的事务时，application name 不会传递到 SQL 服务器。当我监控 SQL 查询的执行时，下图显示 Tedious 被发送到应用程序名称。

交易代码：

    await conn.transaction(async t => {
                for(let i in this.collect){
                    let queryBuilder = this.collect[i];
                    let options = {replacements: queryBuilder.replacement, transaction: t};
                    if(queryBuilder.type === 'insert'){
                        options.type = conn.QueryTypes.INSERT;
                    }
                    let row = await conn.query(queryBuilder.query + ';select @@IDENTITY as id', options);
                    progressBar.update(parseInt(i) + 1);
                }

SQL 分析器图片是：

如何正确设置 Application Name？

Answer 1

您必须在选项对象中设置 appName，这样正确的语法是

let conn = new Sequelize(this.models.sequelize.config.database, this.models.sequelize.config.username,
            this.models.sequelize.config.password, {
            host: this.models.sequelize.config.host,
            dialect: this.models.sequelize.getDialect(),
            dialectOptions: {
               options: {
                  appName: "userid=-2@gid=" + gid
               }
            }
        });

Answer 2

在 postgreSQL 上，您需要像这样在 dialectOptions 对象中设置属性 application_name：

let conn = new Sequelize(this.models.sequelize.config.database, this.models.sequelize.config.username,
            this.models.sequelize.config.password, {
            host: this.models.sequelize.config.host,
            dialect: "postgres",
            dialectOptions: {
               application_name: "yourApp"
            }
        });

如何在 sequelize 连接对象中设置应用程序名称？

How to set application name in sequelize connection object?

node.js

sequelize.js

tedious