No Code? No Problem! How GraphQL Servers Break and How to Harden Your Resolvers

Rate this content
Bookmark
Slides

GraphQL servers are critical components of your infrastructure and must be highly-available, reliable, and fault-tolerant. This talk demonstrates how to leverage Solo.io’s GraphQL Envoy proxy filter to deploy bullet-proof GraphQL endpoints that are reliable, secure, and developer-friendly. All without writing any code!

Kevin Dorosh
Kevin Dorosh
Sai Ekbote
Sai Ekbote
20 min
08 Dec, 2022

Comments

Sign in or register to post your comment.

Video Summary and Transcription

We discuss GraphQL servers, their current state, and how to harden resolvers. The talk explores the working of resolvers, handling server outages, and implementing passive health checking. It also delves into the role of API Gateways, proxies, and declarative resolvers in improving network traffic handling. The use of JQ for data transformation and outlier detection is demonstrated. The talk concludes with the importance of resilient resolvers and engagement with the GraphQL community.

Available in Español

1. Introduction to GraphQL and Resolvers

Short description:

We're here to talk about GraphQL, no code, no problem, how GraphQL servers break and how to harden your resolvers. We'll discuss the current state of GraphQL servers, how programmatic resolvers fail, and how to fix them. Additionally, we'll explore declarative resolvers and demonstrate their functionality.

♪♪ Thank you for joining us. We're here to talk about GraphQL, no code, no problem, how GraphQL servers break and how to harden your resolvers. So, first introductions, my name's Kevin. I've been here at solo.io now for several years, working on a wide variety of projects but relevant to what we're talking about today, a large champion of our envoy in GraphQL and Envoy Filter and related projects. And we're joined here graciously today by Sai.

Yeah, hi, I'm Sai. I'm a software engineer at solo. Along with Envoy, Istio, and Flagger, I've contributed to multiple open-source projects, including Glue, and I'm here talking about GraphQL, as well. I'm one of the engineers leading the GraphQL and service mesh effort here at solo. And speaking of solo, who exactly are we? We are a startup in Cambridge, Massachusetts, and we consider ourselves industry leaders in application networking, service mesh, and modern API gateway technologies. And more recently, GraphQL, but let's continue.

So, yeah, so goals for today. We wanna talk about the current state of like GraphQL servers, specifically resolvers. How do programmatic resolvers fail? How do we fix them? Then we wanna take a concrete look at declarative resolvers, how that might work and demo it. Let's just see it in action.

2. Current State of GraphQL Servers

Short description:

We have a simple mobile client making a GraphQL request to a GraphQL server. The server resolves the request for payments and plan services. There are three replicas of each service. The GraphQL server reconciles the data and returns it in a singular GraphQL response.

So getting right into it. The current state of things. I mean, this is a GraphQL conference. You know, I think we should all be familiar with this, but just to recap. So on the left here, we have a simple mobile client making a GraphQL request to a GraphQL server. This server here is resolving the request for a payments and plan service, like I think like a phone service. We have three replicas of the payments and three replicas of the plan service as delineated by the little dotted lines. This GraphQL server is resolving some fields on the payment service and some on the plan service, reconciling that back together via the schema and returning all the data on the right here in that singular GraphQL response.

Check out more articles and videos

We constantly think of articles and videos that might spark Git people interest / skill us up or help building a stellar career

Simplifying Server Components
React Advanced Conference 2023React Advanced Conference 2023
27 min
Simplifying Server Components
Top Content
Server Components are arguably the biggest change to React since its initial release but many of us in the community have struggled to get a handle on them. In this talk we'll try to break down the different moving parts so that you have a good understanding of what's going on under the hood, and explore the line between React and the frameworks that are built upon it.
From GraphQL Zero to GraphQL Hero with RedwoodJS
GraphQL Galaxy 2021GraphQL Galaxy 2021
32 min
From GraphQL Zero to GraphQL Hero with RedwoodJS
Top Content
We all love GraphQL, but it can be daunting to get a server up and running and keep your code organized, maintainable, and testable over the long term. No more! Come watch as I go from an empty directory to a fully fledged GraphQL API in minutes flat. Plus, see how easy it is to use and create directives to clean up your code even more. You're gonna love GraphQL even more once you make things Redwood Easy!
Local State and Server Cache: Finding a Balance
Vue.js London Live 2021Vue.js London Live 2021
24 min
Local State and Server Cache: Finding a Balance
Top Content
How many times did you implement the same flow in your application: check, if data is already fetched from the server, if yes - render the data, if not - fetch this data and then render it? I think I've done it more than ten times myself and I've seen the question about this flow more than fifty times. Unfortunately, our go-to state management library, Vuex, doesn't provide any solution for this.For GraphQL-based application, there was an alternative to use Apollo client that provided tools for working with the cache. But what if you use REST? Luckily, now we have a Vue alternative to a react-query library that provides a nice solution for working with server cache. In this talk, I will explain the distinction between local application state and local server cache and do some live coding to show how to work with the latter.
Exploring React Server Component Fundamentals
React Day Berlin 2023React Day Berlin 2023
21 min
Exploring React Server Component Fundamentals
Top Content
I've been developing a minimalistic framework for React Server Components (RSC). This talk will share my journey to deeply understand RSC from a technical perspective. I'll demonstrate how RSC features operate at a low level and provide insights into what RSC offers at its core. By the end, you should have a stronger mental model of React Server Components fundamentals.
Server Components: The Epic Tale of Rendering UX
React Summit 2023React Summit 2023
26 min
Server Components: The Epic Tale of Rendering UX
Server components, introduced in React v18 end these shortcomings, enabling rendering React components fully on the server, into an intermediate abstraction format without needing to add to the JavaScript bundle. This talk aims to cover the following points:1. A fun story of how we needed CSR and how SSR started to take its place2. What are server components and what benefits did they bring like 0 javascript bundle size3. Demo of a simple app using client-side rendering, SSR, and server components and analyzing the performance gains and understanding when to use what4. My take on how rendering UI will change with this approach
A Practical Guide for Migrating to Server Components
React Advanced Conference 2023React Advanced Conference 2023
28 min
A Practical Guide for Migrating to Server Components
Server Components are the hot new thing, but so far much of the discourse around them has been abstract. Let's change that. This talk will focus on the practical side of things, providing a roadmap to navigate the migration journey. Starting from an app using the older Next.js pages router and React Query, we’ll break this journey down into a set of actionable, incremental steps, stopping only when we have something shippable that’s clearly superior to what we began with. We’ll also discuss next steps and strategies for gradually embracing more aspects of this transformative paradigm.

Workshops on related topic

Build with SvelteKit and GraphQL
GraphQL Galaxy 2021GraphQL Galaxy 2021
140 min
Build with SvelteKit and GraphQL
Top Content
Featured WorkshopFree
Scott Spence
Scott Spence
Have you ever thought about building something that doesn't require a lot of boilerplate with a tiny bundle size? In this workshop, Scott Spence will go from hello world to covering routing and using endpoints in SvelteKit. You'll set up a backend GraphQL API then use GraphQL queries with SvelteKit to display the GraphQL API data. You'll build a fast secure project that uses SvelteKit's features, then deploy it as a fully static site. This course is for the Svelte curious who haven't had extensive experience with SvelteKit and want a deeper understanding of how to use it in practical applications.

Table of contents:
- Kick-off and Svelte introduction
- Initialise frontend project
- Tour of the SvelteKit skeleton project
- Configure backend project
- Query Data with GraphQL
- Fetching data to the frontend with GraphQL
- Styling
- Svelte directives
- Routing in SvelteKit
- Endpoints in SvelteKit
- Deploying to Netlify
- Navigation
- Mutations in GraphCMS
- Sending GraphQL Mutations via SvelteKit
- Q&A
End-To-End Type Safety with React, GraphQL & Prisma
React Advanced Conference 2022React Advanced Conference 2022
95 min
End-To-End Type Safety with React, GraphQL & Prisma
Featured WorkshopFree
Sabin Adams
Sabin Adams
In this workshop, you will get a first-hand look at what end-to-end type safety is and why it is important. To accomplish this, you’ll be building a GraphQL API using modern, relevant tools which will be consumed by a React client.
Prerequisites: - Node.js installed on your machine (12.2.X / 14.X)- It is recommended (but not required) to use VS Code for the practical tasks- An IDE installed (VSCode recommended)- (Good to have)*A basic understanding of Node.js, React, and TypeScript
GraphQL for React Developers
GraphQL Galaxy 2022GraphQL Galaxy 2022
112 min
GraphQL for React Developers
Featured Workshop
Roy Derks
Roy Derks
There are many advantages to using GraphQL as a datasource for frontend development, compared to REST APIs. We developers in example need to write a lot of imperative code to retrieve data to display in our applications and handle state. With GraphQL you cannot only decrease the amount of code needed around data fetching and state-management you'll also get increased flexibility, better performance and most of all an improved developer experience. In this workshop you'll learn how GraphQL can improve your work as a frontend developer and how to handle GraphQL in your frontend React application.
Build a Headless WordPress App with Next.js and WPGraphQL
React Summit 2022React Summit 2022
173 min
Build a Headless WordPress App with Next.js and WPGraphQL
Top Content
WorkshopFree
Kellen Mace
Kellen Mace
In this workshop, you’ll learn how to build a Next.js app that uses Apollo Client to fetch data from a headless WordPress backend and use it to render the pages of your app. You’ll learn when you should consider a headless WordPress architecture, how to turn a WordPress backend into a GraphQL server, how to compose queries using the GraphiQL IDE, how to colocate GraphQL fragments with your components, and more.
Next.js 13: Data Fetching Strategies
React Day Berlin 2022React Day Berlin 2022
53 min
Next.js 13: Data Fetching Strategies
Top Content
WorkshopFree
Alice De Mauro
Alice De Mauro
- Introduction- Prerequisites for the workshop- Fetching strategies: fundamentals- Fetching strategies – hands-on: fetch API, cache (static VS dynamic), revalidate, suspense (parallel data fetching)- Test your build and serve it on Vercel- Future: Server components VS Client components- Workshop easter egg (unrelated to the topic, calling out accessibility)- Wrapping up
Relational Database Modeling for GraphQL
GraphQL Galaxy 2020GraphQL Galaxy 2020
106 min
Relational Database Modeling for GraphQL
Top Content
WorkshopFree
Adron Hall
Adron Hall
In this workshop we'll dig deeper into data modeling. We'll start with a discussion about various database types and how they map to GraphQL. Once that groundwork is laid out, the focus will shift to specific types of databases and how to build data models that work best for GraphQL within various scenarios.
Table of contentsPart 1 - Hour 1      a. Relational Database Data Modeling      b. Comparing Relational and NoSQL Databases      c. GraphQL with the Database in mindPart 2 - Hour 2      a. Designing Relational Data Models      b. Relationship, Building MultijoinsTables      c. GraphQL & Relational Data Modeling Query Complexities
Prerequisites      a. Data modeling tool. The trainer will be using dbdiagram      b. Postgres, albeit no need to install this locally, as I'll be using a Postgres Dicker image, from Docker Hub for all examples      c. Hasura