Mocking Apollo GraphQL Queries in React Testing

When testing our frontend code, we might find ourselves needing to mock GraphQL query responses. Here’s how to do it.

When I learn a new technology, the first thing I think is “okay, how do I use this?” But soon thereafter, the question becomes “how do I test this?”

That was the case recently with Apollo GraphQL in my React project. In this post, we’ll learn how to test a component that uses a GraphQL query.

TLDR: There are Two Keys to Getting this Right

The TLDR is that there are two keys to getting this right:

Using the MockedProvider from the @apollo/client/testing library to wrap our component in the test
Providing mocks that exactly match the query you’re trying to mock

#apollo #graphql #testing #react #javascript

How native is React Native? | React Native vs Native App Development

If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?

In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.

A brief introduction to React Native

Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.

React Native is a popular JavaScript framework that Facebook has created. You can use this open-source framework to code natively rendering Android and iOS mobile apps. You can use it to develop web apps too.

Facebook has developed React Native based on React, its JavaScript library. The first release of React Native came in March 2015. At the time of writing this article, the latest stable release of React Native is 0.62.0, and it was released in March 2020.

Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.

The popularity of React Native comes from its advantages. Some of its advantages are as follows:

Performance: It delivers optimal performance.
Cross-platform development: You can develop both Android and iOS apps with it. The reuse of code expedites development and reduces costs.
UI design: React Native enables you to design simple and responsive UI for your mobile app.
3rd party plugins: This framework supports 3rd party plugins.
Developer community: A vibrant community of developers support React Native.

Why React Native is fundamentally different from earlier hybrid frameworks

Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.

React Native is very close to native. Consider the following aspects as described on the React Native website:

Access to many native platforms features: The primitives of React Native render to native platform UI. This means that your React Native app will use many native platform APIs as native apps would do.
Near-native user experience: React Native provides several native components, and these are platform agnostic.
The ease of accessing native APIs: React Native uses a declarative UI paradigm. This enables React Native to interact easily with native platform APIs since React Native wraps existing native code.

Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.

#android app #frontend #ios app #mobile app development #benefits of react native #is react native good for mobile app development #native vs #pros and cons of react native #react mobile development #react native development #react native experience #react native framework #react native ios vs android #react native pros and cons #react native vs android #react native vs native #react native vs native performance #react vs native #why react native #why use react native

Einar Hintz

1613614858

Mocking Apollo GraphQL Queries in React Testing

When testing our frontend code, we might find ourselves needing to mock GraphQL query responses. Here’s how to do it.

When I learn a new technology, the first thing I think is “okay, how do I use this?” But soon thereafter, the question becomes “how do I test this?”

That was the case recently with Apollo GraphQL in my React project. In this post, we’ll learn how to test a component that uses a GraphQL query.

TLDR: There are Two Keys to Getting this Right

The TLDR is that there are two keys to getting this right:

Using the MockedProvider from the @apollo/client/testing library to wrap our component in the test
Providing mocks that exactly match the query you’re trying to mock

#apollo #graphql #testing #react #javascript

Franz Becker

1651604400

React Starter Kit: Build Web Apps with React, Relay and GraphQL.

React Starter Kit — "isomorphic" web app boilerplate

React Starter Kit is an opinionated boilerplate for web development built on top of Node.js, Express, GraphQL and React, containing modern web development tools such as Webpack, Babel and Browsersync. Helping you to stay productive following the best practices. A solid starting point for both professionals and newcomers to the industry.

See getting started guide, demo, docs, roadmap | Join #react-starter-kit chat room on Gitter | Visit our sponsors:

Hiring

Getting Started

Follow the getting started guide to download and run the project (Node.js >= 8.16.2)
Check the code recipes used in this boilerplate, or share yours

Customization

The master branch of React Starter Kit doesn't include a Flux implementation or any other advanced integrations. Nevertheless, we have some integrations available to you in feature branches that you can use either as a reference or merge into your project:

feature/redux (PR) — isomorphic Redux by Pavel Lang (see how to integrate Redux) (based on master)
feature/apollo (PR) — isomorphic Apollo Client by Pavel Lang (see Tracking PR #1147) (based on feature/redux)
feature/react-intl (PR) — isomorphic Redux and React Intl by Pavel Lang (see how to integrate React Intl) (based on feature/apollo)
feature/apollo-pure (PR) — Apollo devtools and TypeScript integration by piglovesyou (based on master)

You can see status of most reasonable merge combination as PRs labeled as TRACKING

If you think that any of these features should be on master, or vice versa, some features should removed from the master branch, please let us know. We love your feedback!

Comparison

	React Starter Kit	React Static Boilerplate	ASP.NET Core Starter Kit
App type	Isomorphic (universal)	Single-page application	Single-page application
Frontend
Language	JavaScript (ES2015+, JSX)	JavaScript (ES2015+, JSX)	JavaScript (ES2015+, JSX)
Libraries	React, History, Universal Router	React, History, Redux	React, History, Redux
Routes	Imperative (functional)	Declarative	Declarative, cross-stack
Backend
Language	JavaScript (ES2015+, JSX)	n/a	C#, F#
Libraries	Node.js, Express, Sequelize, GraphQL	n/a	ASP.NET Core, EF Core, ASP.NET Identity
SSR	Yes	n/a	n/a
Data API	GraphQL	n/a	Web API

Backers

♥ React Starter Kit? Help us keep it alive by donating funds to cover project expenses via OpenCollective or Bountysource!

lehneres Tarkan Anlar Morten Olsen Adam David Ernst Zane Hitchcox

How to Contribute

Anyone and everyone is welcome to contribute to this project. The best way to start is by checking our open issues, submit a new issue or feature request, participate in discussions, upvote or downvote the issues you like or dislike, send pull requests.

Learn More

Related Projects

GraphQL Starter Kit — Boilerplate for building data APIs with Node.js, JavaScript (via Babel) and GraphQL
Membership Database — SQL schema boilerplate for user accounts, profiles, roles, and auth claims
Babel Starter Kit — Boilerplate for authoring JavaScript/React.js libraries

Support

#react-starter-kit on Stack Overflow — Questions and answers
#react-starter-kit on Gitter — Watch announcements, share ideas and feedback
GitHub issues, or Scrum board — File issues, send feature requests
appear.in/react — Open hours! Exchange ideas and experiences (React, GraphQL, startups and pet projects)
@koistya on Codementor, or Skype — Private consulting

License

Author: kriasoft
Source Code: https://github.com/kriasoft/react-starter-kit
License: MIT License

#graphql #react

Raleigh Hayes

1626922680

React Query Tutorial | React Query For Beginners

Hey everyone! Today’s video is a short tutorial for React Query, I’ve been using it for a few months now and it’s been great! Would definitely recommend checking it out.

Useful Links:
GitHub: https://github.com/redhwannacef/youtube/tree/master/react-query

#react query tutorial #react #query #react query

Raleigh Hayes

1626889860

React Query Mutations Tutorial

Hey everyone! In this week’s video, we are taking another look at React Query, specifically how to handle mutations. Hope you enjoy it!

Useful Links:
GitHub: https://github.com/redhwannacef/youtube/tree/master/react-query

#query #react #react query #react query tutorial

Mocking Apollo GraphQL Queries in React Testing

TLDR: There are Two Keys to Getting this Right

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Buddha Community

How native is React Native? | React Native vs Native App Development

A brief introduction to React Native

Why React Native is fundamentally different from earlier hybrid frameworks

Mocking Apollo GraphQL Queries in React Testing

TLDR: There are Two Keys to Getting this Right

React Starter Kit: Build Web Apps with React, Relay and GraphQL.

React Starter Kit — "isomorphic" web app boilerplate

Getting Started

Customization

Comparison

Backers

How to Contribute

Learn More

Related Projects

Support

License

React Query Tutorial | React Query For Beginners

React Query Mutations Tutorial