Simone Sanfratello

Event based cache invalidation in GraphQL

Stop serving stale data. Use event-based invalidation to keep your GraphQL cache instantly up-to-date.

Event based cache invalidation in GraphQL
#1about 2 minutes

Understanding GraphQL resolvers as cacheable functions

GraphQL resolvers can be treated as pure functions, allowing their results to be memoized and cached based on query arguments.

#2about 5 minutes

Comparing time-based and event-based cache invalidation

Time-based invalidation is simple but can serve stale data, whereas event-based invalidation keeps data synced but is more complex to implement.

#3about 4 minutes

Choosing a storage backend and generating cache keys

A cache can use fast in-memory storage for small, frequent data or a shared Redis instance for larger datasets across multiple nodes.

#4about 4 minutes

Using references for targeted cache invalidation

By tagging cache entries with references to the underlying data entities, you can precisely invalidate them when a write event occurs.

#5about 7 minutes

Live demo of setting up a basic GraphQL server

A Fastify server is configured with the Mercurius plugin to serve a GraphQL schema with user and country data from an in-memory database.

#6about 3 minutes

Live demo of implementing a time-based cache policy

The Mercurius Cache plugin is configured with a time-to-live policy for a query, using onHit and onMiss events to verify its effectiveness.

#7about 5 minutes

Live demo of solving stale data with event invalidation

An invalidation function is added to a mutation resolver, which uses references to clear the relevant user data from the cache upon update.

#8about 3 minutes

Exploring advanced features of Mercurius Cache

Mercurius Cache also supports custom key generation, request deduplication, programmatic invalidation with wildcards, and garbage collection for references.

#9about 4 minutes

Q&A on career advice and GraphQL best practices

Common GraphQL pitfalls are discussed, such as neglecting to use DataLoaders to solve the N+1 query problem.

Related jobs
Jobs that call for the skills explored in this talk.

job ad

Saby Company

Saby Company
Delebio, Italy

Remote
Intermediate
Node.js

d

Saby Company

Saby Company
Delebio, Italy

Junior
Java
Node.js

Matching moments

Using frameworks for automatic cache invalidation
01:34 MIN

Using frameworks for automatic cache invalidation

How Gatsby Cloud's real-time streaming architecture drives <5 second builds

Q&A on cache strategies and dynamic content
03:38 MIN

Q&A on cache strategies and dynamic content

Offline first!

Addressing GraphQL security and implementation challenges
03:29 MIN

Addressing GraphQL security and implementation challenges

GraphQL: Does it replace SQL, REST or Something Else?

Keeping cached data fresh with CDN invalidation
02:48 MIN

Keeping cached data fresh with CDN invalidation

Accelerating Authentication Architecture: Taking Passwordless to the Next Level

Implementing frontend caching in React Native apps
03:34 MIN

Implementing frontend caching in React Native apps

Optimizing Your App for Success: Tips and Techniques for managing slow devices

Q&A on GraphQL, team structure, and vendor software
13:52 MIN

Q&A on GraphQL, team structure, and vendor software

Building high performance and scalable architectures for enterprises

Q&A on caching strategies and implementation details
12:03 MIN

Q&A on caching strategies and implementation details

Advanced Caching Patterns used by 2000 microservices

How GraphQL improves upon REST's limitations
02:44 MIN

How GraphQL improves upon REST's limitations

REST in Peace? What does the API protocol of the future look like? Or do we have it already?

Featured Partners

Related Videos

See all videos
Putting the Graph In GraphQL With The Neo4j GraphQL Library47:48

Putting the Graph In GraphQL With The Neo4j GraphQL Library

William Lyon

Advanced Caching Patterns used by 2000 microservices44:37

Advanced Caching Patterns used by 2000 microservices

Natan Silnitsky

GraphQL: Does it replace SQL, REST or Something Else?28:12

GraphQL: Does it replace SQL, REST or Something Else?

Gregor Bauer

In-Memory Computing - The Big Picture30:36

In-Memory Computing - The Big Picture

Markus Kett

Rethinking Reactive Architectures with GraphQL 41:06

Rethinking Reactive Architectures with GraphQL

David Leitner

HTTP headers that make your website go faster30:27

HTTP headers that make your website go faster

Thijs Feryn

Rapid GraphQL API Development with PostGraphile46:47

Rapid GraphQL API Development with PostGraphile

Ruwan Xaviour Fernando

GraphQL Mesh – Why GraphQL between services is the worst idea and the best idea at the same time!34:28

GraphQL Mesh – Why GraphQL between services is the worst idea and the best idea at the same time!

Uri Goldshtein

Related Articles

View all articles
CH
Chris Heilmann
Dev Digest 139 - Soft and hard queries
News and ArticlesLet's start with Amelia Wattenberger's excellent essay Bridging the hard and the soft talking about humans and data. Do you sometimes also miss aspects of the early web like a lack of big data and freedom to create without numeric go...
Dev Digest 139 - Soft and hard queries
CH
Chris Heilmann
Dev Digest 109 -Egg-citing things…
As we are heading into the Easter break, here are some things to spend some time on. There's resources on improving the performance of your code and you hear from the winners of CODE100 Amsterdam what it was like to be on stage. Also, hang tight as t...
Dev Digest 109 -Egg-citing things…
CH
Chris Heilmann
All the videos of Halfstack London 2024!
Last month was Halfstack London, a conference about the web, JavaScript and half a dozen other things. We were there to deliver a talk, but also to record all the sessions and we're happy to share them with you. It took a bit as we had to wait for th...
All the videos of Halfstack London 2024!
EM
Eli McGarvie
Stop Wasting Time: How to Lead a Stand-Up Meeting & Get Results
We all know the feeling: your stand-up meeting starts… and the energy in the room slowly deflates. Eyes glaze over, minds wander. Maybe you can even see their attention drop on smartphones or laptops.Within minutes or even seconds, instead of a quick...
Stop Wasting Time: How to Lead a Stand-Up Meeting & Get Results

From learning to earning

Jobs that call for the skills explored in this talk.