El día que rompí React Native

Rate this content
Bookmark

4 de noviembre de 2022 - Era solo un día normal para el "equipo de lanzamiento" mientras nos preparábamos para preparar el primer candidato a la liberación para React Native 0.71. Poco sabíamos cómo un lanzamiento inocuo podría haber desencadenado un efecto dominó que resulta en compilaciones fallidas para casi todos los desarrolladores de React Native.


Con la sabiduría de la retrospectiva, repasaremos lo que sucedió, cuáles son nuestras lecciones aprendidas y los puntos bajos de este incidente. Tendremos la oportunidad de mirar a través de las entrañas de React Native, descubrir nuestra cultura de respuesta a incidentes y aprender cómo estamos fortaleciendo nuestro ecosistema para protegernos contra eventos similares en el futuro.  


Únete a mí mientras revivimos este incidente, y no pierdas esta oportunidad de obtener información, inspirarte y abrazar las lecciones aprendidas del día que rompí React Native.

Nicola Corti
Nicola Corti
30 min
08 Dec, 2023

Comments

Sign in or register to post your comment.

Video Summary and Transcription

La charla discute un incidente en el que un lanzamiento de React Native provocó compilaciones fallidas y cómo se solucionó. El incidente ocurrió debido a que el paquete NPM se volvió demasiado grande, lo que llevó al traslado de los artefactos de Android a Maven central. El uso de versiones dinámicas y la dependencia plus en React Native se identificaron como factores contribuyentes al problema. Las lecciones aprendidas incluyen la importancia de eliminar las dependencias plus y la necesidad de mejores recomendaciones para crear bibliotecas resistentes.

Available in English

1. El Día Que Rompí React Native

Short description:

Hola a todos. Hoy quiero contarles una historia de un lluvioso día de noviembre del año pasado en Seattle. La gente comenzó a informar sobre compilaciones de React Native rotas, y descubrimos que una próxima versión de React Native estaba causando el problema. Yo, Nicola Corti, ingeniero de Android en Meta, les guiaré a través del incidente y cómo lo solucionamos.

Hola a todos. Así que hoy quiero contarles una historia. Es la historia de un lluvioso día de noviembre del año pasado. Estaba en Seattle. Si alguna vez han estado en Seattle, asegúrense de visitar la Starbucks Reserve Roastery. Es un Starbucks especial donde hacen catas de café. Si te gusta el café, definitivamente querrás echarle un vistazo. Y yo estaba allí. Estaba revisando mi correo electrónico, revisando mis notificaciones de GitHub. Y sí, todo parecía genial. Pero luego la gente comenzó a enviarme mensajes de que por alguna razón sus compilaciones, sus compilaciones de React Native estaban rotas. Y bueno, estaba en Discord. Así que déjame ver qué está pasando realmente.

Y en React Native, ejecutarás Android para ejecutar la aplicación Android. Y la gente comenzó a informar sobre mensajes de error de la nada, de una manera realmente terrible. Imagina que tu compilación estaba funcionando hace un minuto, luego vuelves a compilar, no haces ningún cambio de código y tu compilación está rota. Esto es terrible desde el punto de vista de la experiencia del desarrollador. Y obviamente no debería suceder. Luego comenzamos a investigar, oye, ¿por qué estas compilaciones se están rompiendo realmente? Y nos dimos cuenta de que en el mensaje de error, se mencionaba una próxima versión de React Native, como 0.710.rc0. E incluso para los usuarios que estaban en versiones anteriores de React Native, como en 68 y 69 y así sucesivamente. En ese punto, nos dimos cuenta, sí, creo que tenemos un problema. Y personalmente tuve un gran problema porque se suponía que debía volar de regreso a Londres en un par de horas. Entonces, ¿cómo lo solucionamos?

Así que mi nombre es Nicola Corti. Trabajo como ingeniero de Android en el equipo de React Native en Meta. Y hoy estoy emocionado de contar la historia del día en que rompí React Native. Para entender completamente qué fue esto, les guiaré a través de lo que sucedió, qué fue el incidente real, por qué se rompió y cómo lo solucionamos realmente. Así que la advertencia aquí es, bueno, el incidente fue en Android, pero efectivamente rompimos la compilación para todos. Así que bueno, no muchas personas aquí usan React Native, pero confíen en mí, hay muchas lecciones aprendidas que se aplican a cualquier tecnología. Así que comencemos con lo que sucedió. Dentro de React Native y dentro del equipo de React Native, tenemos este grupo de personas llamado el equipo de lanzamiento.

2. Proceso de Lanzamiento de React Native

Short description:

El equipo responsable de los lanzamientos de React Native ejecuta el script Bump.OSS version con la próxima versión. El primer candidato a la liberación, RC0, se envía para pruebas. En 0.71, el paquete NPM se volvió demasiado grande, lo que llevó a la mudanza de los artefactos de Android a Maven central.

Son responsables de elaborar nuevas versiones de React Native cada cuatro a seis meses. Y lo que hacen, lanzan el script desde la consola, que se llama Bump.OSS version, con la próxima versión que tienen la intención de lanzar. Cuando cortamos una nueva rama, hacemos el RC0, que es el primer candidato a la liberación. El primer candidato a la liberación generalmente es inestable. Simplemente lo cortamos y lo enviamos al mercado para que la gente pueda comenzar a testing y decirnos si hay problemas de integración o regresiones. Así que 0.71, que fue a principios de este año, en realidad, fue bastante grande, y hubo muchos cambios dentro.

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

Remix Flat Routes – An Evolution in Routing
Remix Conf Europe 2022Remix Conf Europe 2022
16 min
Remix Flat Routes – An Evolution in Routing
Top Content
This talk introduces the new Flat Routes convention that will most likely be the default in a future version of Remix. It simplifies the existing convention as well as gives you new capabilities.
Raising the Bar: Our Journey Making React Native a Preferred Choice
React Advanced Conference 2023React Advanced Conference 2023
29 min
Raising the Bar: Our Journey Making React Native a Preferred Choice
At Microsoft, we're committed to providing our teams with the best tools and technologies to build high-quality mobile applications. React Native has long been a preferred choice for its high performance and great user experience, but getting stakeholders on board can be a challenge. In this talk, we will share our journey of making React Native a preferred choice for stakeholders who prioritize ease of integration and developer experience. We'll discuss the specific strategies we used to achieve our goal and the results we achieved.
How to Make a Web Game All by Yourself
JS GameDev Summit 2023JS GameDev Summit 2023
27 min
How to Make a Web Game All by Yourself
It's never been easier to make your own web game, but it's still extremely difficult. What game should you make? Which engine should you choose? Let's discuss how to answer these problems and ways to leverage the unique platform that is the web.
Opensource Documentation—Tales from React and React Native
React Finland 2021React Finland 2021
27 min
Opensource Documentation—Tales from React and React Native
Documentation is often your community's first point of contact with your project and their daily companion at work. So why is documentation the last thing that gets done, and how can we do it better? This talk shares how important documentation is for React and React Native and how you can invest in or contribute to making your favourite project's docs to build a thriving community
Atomic Deployment for JS Hipsters
DevOps.js Conf 2024DevOps.js Conf 2024
25 min
Atomic Deployment for JS Hipsters
Deploying an app is all but an easy process. You will encounter a lot of glitches and pain points to solve to have it working properly. The worst is: that now that you can deploy your app in production, how can't you also deploy all branches in the project to get access to live previews? And be able to do a fast-revert on-demand?Fortunately, the classic DevOps toolkit has all you need to achieve it without compromising your mental health. By expertly mixing Git, Unix tools, and API calls, and orchestrating all of them with JavaScript, you'll master the secret of safe atomic deployments.No more need to rely on commercial services: become the perfect tool master and netlifize your app right at home!
Your GraphQL Groove
GraphQL Galaxy 2022GraphQL Galaxy 2022
31 min
Your GraphQL Groove
Building with GraphQL for the first time can be anywhere between daunting and easy-peasy. Understanding which features to look for in your client-side and server-side tooling and getting into the right habits (and ridding yourself of old habits) is the key to succeed with a team of any size in GraphQL.

This talk gives an overview of common struggles I've seen numerous teams have when building with GraphQL, how they got around common sources of frustration, and the mindset they eventually adopted, and lessons learned, so you can confidently stick with and adopt GraphQL!

Workshops on related topic

Introducing FlashList: Let's build a performant React Native list all together
React Advanced Conference 2022React Advanced Conference 2022
81 min
Introducing FlashList: Let's build a performant React Native list all together
Top Content
WorkshopFree
David Cortés Fulla
Marek Fořt
Talha Naqvi
3 authors
In this workshop you’ll learn why we created FlashList at Shopify and how you can use it in your code today. We will show you how to take a list that is not performant in FlatList and make it performant using FlashList with minimum effort. We will use tools like Flipper, our own benchmarking code, and teach you how the FlashList API can cover more complex use cases and still keep a top-notch performance.You will know:- Quick presentation about what FlashList, why we built, etc.- Migrating from FlatList to FlashList- Teaching how to write a performant list- Utilizing the tools provided by FlashList library (mainly the useBenchmark hook)- Using the Flipper plugins (flame graph, our lists profiler, UI & JS FPS profiler, etc.)- Optimizing performance of FlashList by using more advanced props like `getType`- 5-6 sample tasks where we’ll uncover and fix issues together- Q&A with Shopify team
Detox 101: How to write stable end-to-end tests for your React Native application
React Summit 2022React Summit 2022
117 min
Detox 101: How to write stable end-to-end tests for your React Native application
Top Content
WorkshopFree
Yevheniia Hlovatska
Yevheniia Hlovatska
Compared to unit testing, end-to-end testing aims to interact with your application just like a real user. And as we all know it can be pretty challenging. Especially when we talk about Mobile applications.
Tests rely on many conditions and are considered to be slow and flaky. On the other hand - end-to-end tests can give the greatest confidence that your app is working. And if done right - can become an amazing tool for boosting developer velocity.
Detox is a gray-box end-to-end testing framework for mobile apps. Developed by Wix to solve the problem of slowness and flakiness and used by React Native itself as its E2E testing tool.
Join me on this workshop to learn how to make your mobile end-to-end tests with Detox rock.
Prerequisites- iOS/Android: MacOS Catalina or newer- Android only: Linux- Install before the workshop
How to Build an Interactive “Wheel of Fortune” Animation with React Native
React Summit Remote Edition 2021React Summit Remote Edition 2021
60 min
How to Build an Interactive “Wheel of Fortune” Animation with React Native
Top Content
Workshop
Oli Bates
Oli Bates
- Intro - Cleo & our mission- What we want to build, how it fits into our product & purpose, run through designs- Getting started with environment set up & “hello world”- Intro to React Native Animation- Step 1: Spinning the wheel on a button press- Step 2: Dragging the wheel to give it velocity- Step 3: Adding friction to the wheel to slow it down- Step 4 (stretch): Adding haptics for an immersive feel
Effective Detox Testing
React Advanced Conference 2023React Advanced Conference 2023
159 min
Effective Detox Testing
Workshop
Josh Justice
Josh Justice
So you’ve gotten Detox set up to test your React Native application. Good work! But you aren’t done yet: there are still a lot of questions you need to answer. How many tests do you write? When and where do you run them? How do you ensure there is test data available? What do you do about parts of your app that use mobile APIs that are difficult to automate? You could sink a lot of effort into these things—is the payoff worth it?
In this three-hour workshop we’ll address these questions by discussing how to integrate Detox into your development workflow. You’ll walk away with the skills and information you need to make Detox testing a natural and productive part of day-to-day development.
Table of contents:
- Deciding what to test with Detox vs React Native Testing Library vs manual testing- Setting up a fake API layer for testing- Getting Detox running on CI on GitHub Actions for free- Deciding how much of your app to test with Detox: a sliding scale- Fitting Detox into you local development workflow
Prerequisites
- Familiarity with building applications with React Native- Basic experience with Detox- Machine setup: a working React Native CLI development environment including either Xcode or Android Studio
Deploying React Native Apps in the Cloud
React Summit 2023React Summit 2023
88 min
Deploying React Native Apps in the Cloud
WorkshopFree
Cecelia Martinez
Cecelia Martinez
Deploying React Native apps manually on a local machine can be complex. The differences between Android and iOS require developers to use specific tools and processes for each platform, including hardware requirements for iOS. Manual deployments also make it difficult to manage signing credentials, environment configurations, track releases, and to collaborate as a team.
Appflow is the cloud mobile DevOps platform built by Ionic. Using a service like Appflow to build React Native apps not only provides access to powerful computing resources, it can simplify the deployment process by providing a centralized environment for managing and distributing your app to multiple platforms. This can save time and resources, enable collaboration, as well as improve the overall reliability and scalability of an app.
In this workshop, you’ll deploy a React Native application for delivery to Android and iOS test devices using Appflow. You’ll also learn the steps for publishing to Google Play and Apple App Stores. No previous experience with deploying native applications is required, and you’ll come away with a deeper understanding of the mobile deployment process and best practices for how to use a cloud mobile DevOps platform to ship quickly at scale.
Introduction to React Native Testing Library
React Advanced Conference 2022React Advanced Conference 2022
131 min
Introduction to React Native Testing Library
Workshop
Josh Justice
Josh Justice
Are you satisfied with your test suites? If you said no, you’re not alone—most developers aren’t. And testing in React Native is harder than on most platforms. How can you write JavaScript tests when the JS and native code are so intertwined? And what in the world are you supposed to do about that persistent act() warning? Faced with these challenges, some teams are never able to make any progress testing their React Native app, and others end up with tests that don’t seem to help and only take extra time to maintain.
But it doesn’t have to be this way. React Native Testing Library (RNTL) is a great library for component testing, and with the right mental model you can use it to implement tests that are low-cost and high-value. In this three-hour workshop you’ll learn the tools, techniques, and principles you need to implement tests that will help you ship your React Native app with confidence. You’ll walk away with a clear vision for the goal of your component tests and with techniques that will help you address any obstacle that gets in the way of that goal.you will know:- The different kinds React Native tests, and where component tests fit in- A mental model for thinking about the inputs and outputs of the components you test- Options for selecting text, image, and native code elements to verify and interact with them- The value of mocks and why they shouldn’t be avoided- The challenges with asynchrony in RNTL tests and how to handle them- Options for handling native functions and components in your JavaScript tests
Prerequisites:- Familiarity with building applications with React Native- Basic experience writing automated tests with Jest or another unit testing framework- You do not need any experience with React Native Testing Library- Machine setup: Node 16.x or 18.x, Yarn, be able to successfully create and run a new Expo app following the instructions on https://docs.expo.dev/get-started/create-a-new-app/