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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
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ActionHero
Actionhero is a realtime multi-transport nodejs API Server with integrated cluster capabilities and delayed tasks
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Sequelize
Feature-rich ORM for modern Node.js and TypeScript, it supports PostgreSQL (with JSON and JSONB support), MySQL, MariaDB, SQLite, MS SQL Server, Snowflake, Oracle DB (v6), DB2 and DB2 for IBM i.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
The solution to our problem comes from a wonderful package called cls-hooked. Using the magic of AsyncHooks, this package can tell when certain code is within a callback chain or promise. In this way, you can say: "for all methods invoked within this async function, I want to keep this variable in scope". This is pretty wild! If you opt into using Sequelize with CLS-Hooked, every SQL statement will check to see if there is already a transaction in scope... You don't need to manually supply it as an argument!
The solution to our problem comes from a wonderful package called cls-hooked. Using the magic of AsyncHooks, this package can tell when certain code is within a callback chain or promise. In this way, you can say: "for all methods invoked within this async function, I want to keep this variable in scope". This is pretty wild! If you opt into using Sequelize with CLS-Hooked, every SQL statement will check to see if there is already a transaction in scope... You don't need to manually supply it as an argument!
At Grouparoo, we use Actionhero as our Node.js API server and Sequelize for our Object Relational Mapping (ORM) tool - making it easy to work with complex records from our database. Within our Actions and Tasks, we often want to treat the whole execution as a single database transaction - either all the modifications to the database will succeed or fail as a unit. This is really helpful when a single activity may create or modify many database rows.
At Grouparoo, we use Actionhero as our Node.js API server and Sequelize for our Object Relational Mapping (ORM) tool - making it easy to work with complex records from our database. Within our Actions and Tasks, we often want to treat the whole execution as a single database transaction - either all the modifications to the database will succeed or fail as a unit. This is really helpful when a single activity may create or modify many database rows.
Looking deeper into how cls-hooked works, we can see that it is possible to tell if you are currently in a namespace, and to set and get values from the namespace. Think of this like a session... but for the callback or promise your code is within! With this in mind, we can write our run method to be transaction-aware. This means that we can use a pattern that knows to run a function in-line if we aren’t within a transaction, but if we are, defer it until the end. We’ve wrapped utilities to do this within Grouparoo’s CLS module.