Improved Caching with Redis
In this lesson, we'll install and configure the AdonisJS Redis package. We'll then swap out our singleton in-memory cache service with a Redis cache implementation.
- Author
- Tom Gobich
- Published
- Feb 04, 24
- Duration
- 10m 44s
Developer & dog lover. I teach AdonisJS, a full-featured Node.js framework, at Adocasts where I publish weekly lessons. Professionally, I work with JavaScript, .NET, and SQL Server.
Adocasts
Burlington, KY
Get the Code
Download or explore the source code for this lesson on GitHub
Transcript
Improved Caching with Redis
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Introduction
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Fundamentals
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2.0Routes and How To Create ThemLesson 2.05m 24s
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2.1Rendering a View for a RouteLesson 2.16m 30s
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2.2Linking Between RoutesLesson 2.27m 52s
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2.3Loading A Movie Using Route ParametersLesson 2.39m 18s
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2.4Validating Route ParametersLesson 2.46m 7s
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2.5Vite and Our AssetsLesson 2.56m 39s
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2.6Setting Up Tailwind CSSLesson 2.69m 14s
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2.7Reading and Supporting Markdown ContentLesson 2.74m 32s
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2.8Listing Movies from their Markdown FilesLesson 2.88m 51s
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2.9Extracting Reusable Code with ServicesLesson 2.97m 4s
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2.10Cleaning Up Routes with ControllersLesson 2.104m 52s
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2.11Defining A Structure for our Movie using ModelsLesson 2.119m 38s
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2.12Singleton Services and the Idea of CachingLesson 2.126m 11s
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2.13Environment Variables and their ValidationLesson 2.134m 16s
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2.14Improved Caching with RedisLesson 2.1410m 44s
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2.15Deleting Items and Flushing our Redis CacheLesson 2.156m 46s
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2.16Quick Start Apps with Custom Starter KitsLesson 2.166m 28s
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2.17Easy Imports with NodeJS Subpath ImportsLesson 2.178m 40s
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Building Views with EdgeJS
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3.0EdgeJS Templating BasicsLesson 3.08m 49s
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3.1HTML Attribute and Class UtilitiesLesson 3.16m 9s
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3.2Making A Reusable Movie Card ComponentLesson 3.210m 24s
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3.3Component Tags, State, and PropsLesson 3.34m 53s
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3.4Use Slots To Make A Button ComponentLesson 3.46m 56s
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3.5Extracting A Layout ComponentLesson 3.55m 13s
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3.6State vs Share Data FlowLesson 3.62m 59s
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3.7Share vs Global Data FlowLesson 3.76m 8s
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3.8Form Basics and CSRF ProtectionLesson 3.86m 13s
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3.9HTTP Method Spoofing HTML FormsLesson 3.93m 3s
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3.10Easy SVG Icons with Edge IconifyLesson 3.107m 57s
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Database and Lucid ORM Basics
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4.0Configuring Lucid and our Database ConnectionLesson 4.04m 3s
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4.1Understanding our Database SchemaLesson 4.19m 34s
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4.2Introducing and Defining Database MigrationsLesson 4.218m 35s
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4.3The Flow of MigrationsLesson 4.38m 28s
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4.4Introducing Lucid ModelsLesson 4.45m 43s
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4.5Defining Our ModelsLesson 4.56m 49s
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4.6The Basics of CRUDLesson 4.611m 56s
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4.7Defining Required Data with SeedersLesson 4.711m 11s
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4.8Stubbing Fake Data with Model FactoriesLesson 4.813m 48s
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4.9Querying Our Movies with the Query BuilderLesson 4.915m 30s
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4.10Unmapped and Computed Model PropertiesLesson 4.103m 24s
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4.11Altering Tables with MigrationsLesson 4.117m 6s
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4.12Adding A Profile Model, Migration, Factory, and ControllerLesson 4.122m 57s
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4.13SQL Parameters and Injection ProtectionLesson 4.139m 19s
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4.14Reusable Query Statements with Model Query ScopesLesson 4.148m 11s
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4.15Tapping into Model Factory StatesLesson 4.159m 15s
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4.16Querying Recently Released and Coming Soon MoviesLesson 4.164m 59s
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4.17Generating A Unique Movie Slug With Model HooksLesson 4.177m 59s
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Lucid ORM Relationships
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5.0Defining One to One Relationships Within Lucid ModelsLesson 5.05m 49s
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5.1Model Factory RelationshipsLesson 5.12m 54s
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5.2Querying Relationships and Eager Vs Lazy LoadingLesson 5.25m 17s
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5.3Cascading and Deleting Model RelationshipsLesson 5.35m 16s
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5.4Defining One to Many Relationships with Lucid ModelsLesson 5.46m 56s
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5.5Seeding Movies with One to Many Model Factory RelationshipsLesson 5.55m 24s
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5.6Listing A Director's Movies with Relationship Existence QueriesLesson 5.68m 41s
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5.7Listing and Counting a Writer's MoviesLesson 5.78m 41s
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5.8Using Eager and Lazy Loading to Load A Movie's Writer and DirectorLesson 5.85m 18s
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5.9Defining Many-To-Many Relationships and Pivot ColumnsLesson 5.99m 48s
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5.10Many-To-Many Model Factory RelationshipsLesson 5.104m 50s
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5.11A Deep Dive Into Relationship CRUD with ModelsLesson 5.1118m 5s
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5.12How To Create Factory Relationships from a Pool of DataLesson 5.1213m 55s
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5.13How To Query, Sort, and Filter by Pivot Table DataLesson 5.139m 47s
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Working With Forms
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6.0Accepting Form DataLesson 6.012m 15s
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6.1Validating Form Data with VineJSLesson 6.19m 28s
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6.2Displaying Validation Errors and Validating from our RequestLesson 6.27m 16s
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6.3Reusing Old Form Values After A Validation ErrorLesson 6.32m 3s
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6.4Creating An EdgeJS Form Input ComponentLesson 6.45m 28s
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6.5Creating A Login Form and ValidatorLesson 6.55m 0s
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6.6How To Create A Custom VineJS Validation RuleLesson 6.69m 7s
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Authentication & Middleware
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7.0The Flow of MiddlewareLesson 7.07m 49s
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7.1Authenticating A Newly Registered UserLesson 7.14m 14s
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7.2Checking For and Populating an Authenticated UserLesson 7.22m 10s
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7.3Logging Out An Authenticated UserLesson 7.32m 24s
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7.4Logging In An Existing UserLesson 7.46m 54s
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7.5Remembering A User's Authenticated SessionLesson 7.56m 55s
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7.6Protecting Routes with Auth, Guest, and Admin MiddlewareLesson 7.65m 36s
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Filtering and Paginating Queries
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8.0Creating A Movie List PageLesson 8.03m 43s
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8.1Filtering A Query By Pattern LikenessLesson 8.17m 9s
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8.2Filtering Our List by Movie StatusLesson 8.25m 47s
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8.3How To Apply A Dynamic Sort Filter To Your QueryLesson 8.37m 12s
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8.4Joining SQL Tables To Order By A Related ColumnLesson 8.44m 49s
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8.5Validating Query String Filter ValuesLesson 8.57m 24s
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8.6How To Paginate Filtered Query ResultsLesson 8.69m 15s
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8.7Pagination First, Last, Next, and Previous ButtonsLesson 8.74m 3s
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User Watchlist
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9.0An Alternative Approach to Many-To-Many RelationshipsLesson 9.04m 56s
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9.1Toggling A Movie in an Authenticated User's WatchlistLesson 9.19m 56s
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9.2Listing and Filtering User Watchlist ItemsLesson 9.27m 31s
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9.3Allowing Users To Toggle A Movie As WatchedLesson 9.34m 44s
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9.4Filtering By User's Watched StatusLesson 9.46m 7s
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9.5Defining A Composite Unique ConstraintLesson 9.54m 47s
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9.6Persist Filters Easily with Lucid's Query String MethodLesson 9.63m 58s
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User Profiles
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10.0How to Create and Fix Missing User Profiles in Your ApplicationLesson 10.07m 37s
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10.1Using Dependency Injection to Update A User's ProfileLesson 10.19m 46s
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10.2Saving All Or Nothing with Database TransactionsLesson 10.25m 15s
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10.3Uploading and Displaying User AvatarsLesson 10.315m 29s
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10.4Displaying A User's ProfileLesson 10.46m 1s
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10.5Filtering, Preloading, and Sorting By RelationshipLesson 10.57m 6s
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Admin Panel
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11.0Creating An Admin LayoutLesson 11.07m 14s
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11.1Counting Stats for our Admin DashboardLesson 11.15m 43s
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11.2Paginated Admin Movie TableLesson 11.213m 2s
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11.3Allowing Admins to Create MoviesLesson 11.316m 39s
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11.4Allowing Admins to Update Movies and Clear ValuesLesson 11.413m 27s
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11.5How To Use One Form to Create or Edit MoviesLesson 11.55m 32s
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11.6Uploading Movie Cover Images in our Create or Edit FormLesson 11.610m 29s
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11.7Using A Wildcard Route Param to Download Storage ImagesLesson 11.78m 46s
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11.8Posting Objects, Arrays, and an Array of Objects in HTML FormsLesson 11.826m 26s
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11.9Managed Transactions and Syncing Movie Cast MembersLesson 11.915m 55s
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11.10Allowing Admins to Delete Movies and their RelationshipsLesson 11.107m 42s
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11.11Thank You for Watching!Lesson 11.110m 31s
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Join The Discussion! (8 Comments)
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PhillipMwaniki
Incase you have issues with writing to redis, head over to redis-cli on the terminal and run this
`config set stop-writes-on-bgsave-error no`
Restart your redis server and all will be good.
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tomgobich
Thanks for sharing, Phillip!!
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n2zb
Hi Tom, why do you define an overlay on redis with the CacheService class? I don't understand why you don't use the methods provided by redis directly. Is it an abstraction layer that preserves the name of the methods independently of the service used? A bit like what you explained with the aliases for routes?
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tomgobich
Hi n2zb! We started our
CacheServicewithout using Redis, but rather an in-memory key/value store. We kept using theCacheServiceeven with Redis for a couple reasons.I felt it would be easier to understand and follow by refactoring our preexisting service to use Redis rather than directly replacing the service with Redis. That way the before/after is all in one file.
To keep the JSON parse & stringify calls abstracted to the service's get & set methods.
When we have things like this that may be swapped out at some point, I like to keep them abstracted in my code to simplify any updates down the road. For example, if this lesson were released today we would've used Bentocache rather than the AdonisJS Redis package directly as Bentocache is specially attuned for caching with Redis - and will be used for the official AdonisJS Cache package coming soon.
So yes, you're pretty spot on! 😊
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holodev
I believe this redis module needs an active Redis server deployed locally? Developing on Windows, it looks like Windows Subsystem for Linux would be required to get that working. Perhaps that should be mentioned in the video?
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tomgobich
Hi holodevelop! First, thank you for your feedback! I'm always looking to improve my lesson making skills, and feedback like this definitely helps, I appreciate it!
To answer your question, any Redis connection would do. You can even use a small free tiered one from Redis Cloud. However, we only use Redis in this lesson and the next within this series, so just skipping over is also a valid option.
There's many things about this series I would add, remove, or do differently now if I were to go back and do them again. A heads up blurb like the below in this lesson and our before we begin lesson would definitely be one of those things.
👆 I'll circle back and add that to this lesson and another blurb to lesson 1.1, I have some updates to do in module 11 as well.
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holodev
Ah thanks for the response, I think I may have just skimmed lesson 1.1, which was quite a number of lessons ago. Someone who did everything in order would likely have no issue, but for people who skip around (like me), that new blurb you mentioned would indeed be quite useful!
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tomgobich
Yeah, I completely agree!! Thanks again for the helpful feedback!!
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