Services
Services provide a way to write easily reusable code. They also provide a way to help streamline other portions of your code like controllers and route handlers. Most often they're grouped by topic.
Series.
Lessons.
What Code Can & Can't Be Shared Between AdonisJS & Inertia
In this lesson, we'll discuss what code we can and cannot share between AdonisJS and Inertia.
How To Make A Simple AdonisJS 6 Package
In this lesson, we'll learn how to use AdonisJS' Package Starter Kit to create a simple package where we can configure and add a make:action Ace CLI command to generate action class files, similar to the make:service command.
Three Approaches for Organizing your AdonisJS Business Logic Operations
In this lesson, we'll dive deep into three different ways we can organize our code; fat controllers, services, and actions. We'll also discuss circular dependencies, static and non-static service methods, and dependency injection.
Managed Transactions and Syncing Movie Cast Members
In this lesson, we'll learn how we can use what we learned in the last lesson to also sync our cast members. We'll then extract this functionality into a service and wrap it within a managed database transactions.
Using A Wildcard Route Param to Download Storage Images
In this lesson, we'll learn how we can utilize a wildcard route parameter to dynamically download images that've been uploaded and stored within our application storage.
Uploading Movie Cover Images in our Create or Edit Form
In this lesson, we'll learn how to upload movie cover images when either creating or editing a movie via our create or edit form.
How To Use One Form to Create or Edit Movies
In this lesson, we'll learn how we can merge our create form and edit form together into a create or edit form. We'll conditionally determine whether we'll be creating or editing based on our movie value and use EdgeJS features to simplify the process
Using Dependency Injection to Update A User's Profile
In this lesson, we'll learn how to allow users to edit their profiles. We'll also cover how we can inject the HttpContext into a service instance using Dependency Injection (DI).
Filtering By User's Watched Status
In this lesson, we'll learn how to add a filter to our user's watchlist allowing them to show only movies they have or have not watched.
Listing and Filtering User Watchlist Items
In this lesson, we'll take our movie filter, and learn how we can reuse it to display a filterable list of the user's watchlist movies.
Validating Query String Filter Values
In this lesson, we'll learn how to use VineJS, AdonisJS' Validator, to validate the filter properties and values we have within our query string.
Joining SQL Tables To Order By A Related Column
In this lesson, we'll learn how to join a related table into our query and use that table to apply a sort via the relationship. We'll then see how we can conditionally apply this join only when it's needed for the selected order by.
How To Apply A Dynamic Sort Filter To Your Query
In this lesson, we'll learn how we can add a user-selected sort option to our filters. Then, we'll apply the selected filter to our movie query
Singleton Services and the Idea of Caching
In this lesson, we'll learn about singleton services and how to use them as a store to hold temporary information throughout our server's life by building a simple in-memory caching service.
Extracting Reusable Code with Services
In this lesson, we'll learn about services and how we can use them to extract reusable code in a way that makes it super simple to use throughout your project.
Service Providers & The IoC Container
We'll learn about Service Providers and how they interact with the IoC Container. We'll then put this to practice by wrapping a NodeJS package so it's easy to use within AdonisJS
Static, Non-Static, & Singleton Services
We'll learn what services are. We'll then discuss three different ways we can use them within our AdonisJS application, including static, non-static, and singleton services.
Let's Learn Adonis 5: Controllers, Services, Resources, and Namespacing
In this lesson, we'll be hammering down several Adonis topics in one swoop. We'll be covering Controllers, which in turn allow us to utilize Services, Resources, and Namespacing.