React.js Efficient Server Rendering – Hacker Noon

  • So the flow is almost similar to this one – Client sending request to get some JSX template pageNode.js server getting main file containing JSX codeRendering it to plain HTML codeSending HTML response to clientUsing HTML markup, then client loading also React.js client side code for adding dynamic logic to…
  • I decided to do React.js as a frontend, but they hat a lot of Python stuff on a backend, I couldn’t rewrite all code just for server side rendering.
  • And I got an idea to build standalone Node.js Server only for React.js JSX template rendering and nothing else, so I can make a proxy request to that server and it will render JSX content for me and will response pure HTML back to Python Django Template.
  • What is that?So using basic principle of proxy requests I just made very simple code for Python – import requests – import json – – – PROXY_RENDER_ADDRESS = ‘http://localhost:3000/’ – – – def get_html(filename, props): – try: – props_str = json.dumps(props) – r = + filename – , data=props_str – ,…
  • So the main advantages that I got – No need to integrate Node.js in backend side, or use crappy JS engines in Python, which are eating a lot of memoryAbility to keep JSX template cache, which give huge load time improvementsScale backend services without scaling base rendering service, so you…

For about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more…
Continue reading “React.js Efficient Server Rendering – Hacker Noon”

Query Components with Apollo – Kureev Alexey – Medium

  • After Apollo takes care of fetching and mapping props to query parameters, query component uses “function-as-a-child” approach to expose a child-independent API with injected data.Comparing to the standard approach were you add a graphql wrapper to your higher-order components, query components have a set of advantages:Testability.
  • Query Components abstracts out your data management layer so you can focus on business logic and change underlying implementation if needed.Once a Query Component is defined, it can be used as an any other component in your application:A nice side effect of decoupling higher-order components into Query Components is minimizing…
  • If the data management layer grows, it won’t affect presenter components unless they have to reflect new data properties.Mutations with Query ComponentsMutations are not that straightforward as queries.
  • For example:Therefore, you can use this component in a similar way:So the concept is the same: Query Component receives a bunch of props that are later on used as parameters for the mutation query.Testing Query Components like a Pro 😎How to test Query Components?When it comes to testing, Apollo-based components have…
  • In other words, we check if given data.x complies to the shape of the mock that was passed to the fake client during initialization.And the last, but not least: query component should call a children function with the data, pulled from Apollo.

A couple of months ago, we started to use Apollo Client (+React Native) at Werkspot. From the very beginning, Apollo overwhelmed us by the simplicity and flexibility it provides. It inspired us to…
Continue reading “Query Components with Apollo – Kureev Alexey – Medium”

React.js Efficient Server Rendering – Hacker Noon

#ReactJS #Javascript RT @ReactAmsterdam: Make #ReactJS Server Rendering Efficient:

  • React.js Efficient Server RenderingFor about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more simplicity to frontend.But in some cases we need SEO with dynamic JSX content or we need more performance in load time for a frontend pages.
  • And for that cases Facebook developers made React.js in that way so it can be rendered on Server Side too, using Node.js basic functionality.So the flow is almost similar to this oneClient sending request to get some JSX template pageNode.js server getting main file containing JSX codeRendering it to plain HTML codeSending HTML response to clientUsing HTML markup, then client loading also React.js client side code for adding dynamic logic to rendered HTMLThis is helping to display HTML content faster than React will render it, and it is helping to give some content to Search Engine bots or website crawlers.But What If You Don’t Have Node.JS backend?This is the real questing that was standing for me when I’ve started working on large Python Django project.
  • I decided to do React.js as a frontend, but they hat a lot of Python stuff on a backend, I couldn’t rewrite all code just for server side rendering.
  • I think we really don’t need!And I got an idea to build standalone Node.js Server only for React.js JSX template rendering and nothing else, so I can make a proxy request to that server and it will render JSX content for me and will response pure HTML back to Python Django Template.
  • What is that?So using basic principle of proxy requests I just made very simple code for Pythonimport requestsimport jsonPROXY_RENDER_ADDRESS = ‘http://localhost:3000/’def get_html(filename, props): try: props_str = json.dumps(props) r = + filename , data=props_str , headers={‘Content-Type’: ‘application/json’}) if r.status_code == 200: return r.text, props_str except Exception as e: print(e) return False, FalseWhich is basically making POST Request to proxy rendering service and by passing global state as a JSON, getting back the HTML code rendered by Node.js server.So the main advantages that I gotNo need to integrate Node.js in backend side, or use crappy JS engines in Python, which are eating a lot of memoryAbility to keep JSX template cache, which give huge load time improvementsScale backend services without scaling base rendering service, so you can have multiple servers with single cached rendering service and get better performanceHuge flexibility in writing code.

For about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more…
Continue reading “React.js Efficient Server Rendering – Hacker Noon”

React.js Efficient Server Rendering – Hacker Noon

“React.JS Efficient Server Rendering” by @tigranbs  #NodeJS #reactjs #javascript #python

  • React.js Efficient Server RenderingFor about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more simplicity to frontend.But in some cases we need SEO with dynamic JSX content or we need more performance in load time for a frontend pages.
  • And for that cases Facebook developers made React.js in that way so it can be rendered on Server Side too, using Node.js basic functionality.So the flow is almost similar to this oneClient sending request to get some JSX template pageNode.js server getting main file containing JSX codeRendering it to plain HTML codeSending HTML response to clientUsing HTML markup, then client loading also React.js client side code for adding dynamic logic to rendered HTMLThis is helping to display HTML content faster than React will render it, and it is helping to give some content to Search Engine bots or website crawlers.But What If You Don’t Have Node.JS backend?This is the real questing that was standing for me when I’ve started working on large Python Django project.
  • I decided to do React.js as a frontend, but they hat a lot of Python stuff on a backend, I couldn’t rewrite all code just for server side rendering.
  • I think we really don’t need!And I got an idea to build standalone Node.js Server only for React.js JSX template rendering and nothing else, so I can make a proxy request to that server and it will render JSX content for me and will response pure HTML back to Python Django Template.
  • What is that?So using basic principle of proxy requests I just made very simple code for Pythonimport requestsimport jsonPROXY_RENDER_ADDRESS = ‘http://localhost:3000/’def get_html(filename, props): try: props_str = json.dumps(props) r = + filename , data=props_str , headers={‘Content-Type’: ‘application/json’}) if r.status_code == 200: return r.text, props_str except Exception as e: print(e) return False, FalseWhich is basically making POST Request to proxy rendering service and by passing global state as a JSON, getting back the HTML code rendered by Node.js server.So the main advantages that I gotNo need to integrate Node.js in backend side, or use crappy JS engines in Python, which are eating a lot of memoryAbility to keep JSX template cache, which give huge load time improvementsScale backend services without scaling base rendering service, so you can have multiple servers with single cached rendering service and get better performanceHuge flexibility in writing code.

For about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more…
Continue reading “React.js Efficient Server Rendering – Hacker Noon”

Getting started with React Native – Leapfrog

Getting started with React Native  #reactnative #react #reactjs #reactjs

  • In this post, we will share about how you can get started with React Native.
  • →That’s at least 50% of the cost gone with the wind without compromising on quality.Learn more on why you should consider React Native for the mobile app in our previous post.STEP 0: Learn ReactReact Native is like React.
  • If you already know React, then you can skip this step.Read the guide to learn more on React.STEP 1: Install React NativeInstalling React Native was a long process.
  • But like create-react-app for React, they have built create-react-native-app which speeds up the installation process without installing or configuring any tools to build native code.
  • Whether you want to learn to create an app or know about boilerplates, these sites will avail you with all such knowledge.Books to learn React NativeSTEP 3: Dive into the frameworkOnce you got a good grasp of React Native, it’s time to get you up to speed: as you may have heard, we are not yet to a 1.

In this post, we will share about how you can get started with React Native. You can write a cross-platform mobile app without having to learn (or hire someone who knows) Java or Objective-C/Swift…
Continue reading “Getting started with React Native – Leapfrog”

React.js Efficient Server Rendering – Hacker Noon

  • React.js Efficient Server RenderingFor about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more simplicity to frontend.But in some cases we need SEO with dynamic JSX content or we need more performance in load time for a frontend pages.
  • And for that cases Facebook developers made React.js in that way so it can be rendered on Server Side too, using Node.js basic functionality.So the flow is almost similar to this oneClient sending request to get some JSX template pageNode.js server getting main file containing JSX codeRendering it to plain HTML codeSending HTML response to clientUsing HTML markup, then client loading also React.js client side code for adding dynamic logic to rendered HTMLThis is helping to display HTML content faster than React will render it, and it is helping to give some content to Search Engine bots or website crawlers.But What If You Don’t Have Node.JS backend?This is the real questing that was standing for me when I’ve started working on large Python Django project.
  • I decided to do React.js as a frontend, but they hat a lot of Python stuff on a backend, I couldn’t rewrite all code just for server side rendering.
  • I think we really don’t need!And I got an idea to build standalone Node.js Server only for React.js JSX template rendering and nothing else, so I can make a proxy request to that server and it will render JSX content for me and will response pure HTML back to Python Django Template.
  • What is that?So using basic principle of proxy requests I just made very simple code for Pythonimport requestsimport jsonPROXY_RENDER_ADDRESS = ‘http://localhost:3000/’def get_html(filename, props): try: props_str = json.dumps(props) r = + filename , data=props_str , headers={‘Content-Type’: ‘application/json’}) if r.status_code == 200: return r.text, props_str except Exception as e: print(e) return False, FalseWhich is basically making POST Request to proxy rendering service and by passing global state as a JSON, getting back the HTML code rendered by Node.js server.So the main advantages that I gotNo need to integrate Node.js in backend side, or use crappy JS engines in Python, which are eating a lot of memoryAbility to keep JSX template cache, which give huge load time improvementsScale backend services without scaling base rendering service, so you can have multiple servers with single cached rendering service and get better performanceHuge flexibility in writing code.

For about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more…
Continue reading “React.js Efficient Server Rendering – Hacker Noon”

React.js Efficient Server Rendering – Hacker Noon

  • React.js Efficient Server RenderingFor about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more simplicity to frontend.But in some cases we need SEO with dynamic JSX content or we need more performance in load time for a frontend pages.
  • And for that cases Facebook developers made React.js in that way so it can be rendered on Server Side too, using Node.js basic functionality.So the flow is almost similar to this oneClient sending request to get some JSX template pageNode.js server getting main file containing JSX codeRendering it to plain HTML codeSending HTML response to clientUsing HTML markup, then client loading also React.js client side code for adding dynamic logic to rendered HTMLThis is helping to display HTML content faster than React will render it, and it is helping to give some content to Search Engine bots or website crawlers.But What If You Don’t Have Node.JS backend?This is the real questing that was standing for me when I’ve started working on large Python Django project.
  • I decided to do React.js as a frontend, but they hat a lot of Python stuff on a backend, I couldn’t rewrite all code just for server side rendering.
  • I think we really don’t need!And I got an idea to build standalone Node.js Server only for React.js JSX template rendering and nothing else, so I can make a proxy request to that server and it will render JSX content for me and will response pure HTML back to Python Django Template.
  • What is that?So using basic principle of proxy requests I just made very simple code for Pythonimport requestsimport jsonPROXY_RENDER_ADDRESS = ‘http://localhost:3000/’def get_html(filename, props): try: props_str = json.dumps(props) r = + filename , data=props_str , headers={‘Content-Type’: ‘application/json’}) if r.status_code == 200: return r.text, props_str except Exception as e: print(e) return False, FalseWhich is basically making POST Request to proxy rendering service and by passing global state as a JSON, getting back the HTML code rendered by Node.js server.So the main advantages that I gotNo need to integrate Node.js in backend side, or use crappy JS engines in Python, which are eating a lot of memoryAbility to keep JSX template cache, which give huge load time improvementsScale backend services without scaling base rendering service, so you can have multiple servers with single cached rendering service and get better performanceHuge flexibility in writing code.

For about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more…
Continue reading “React.js Efficient Server Rendering – Hacker Noon”

ReactJS Authentication Tutorial, Part 2

ReactJS Authentication Tutorial, Part 2  #web_dev #front_end #cli #reactjs #Programming

  • The component is pulling data from an API, so it needs a way of holding that data.
  • In the constructor, we define the initial state as seen in the code below:

    In the method, we call the method we exported from the helper file and set state as seen below:

    Now, we took advantage of one of the ReactJS lifecycle hooks, .

  • So, we invoked the method in the hook as seen below:

    All we are trying to do is tell ReactJS to load the data from the API immediately when the component gets rendered.

  • Finally, we rendered the component with the ReactJS method.
  • This renders the root component in the div, which is the starting point of our ReactJS application.

We continue our series on creating an authenticated ReactJS application by looking at how to setup our front-end with the help of Facebook’s CLI tool.
Continue reading “ReactJS Authentication Tutorial, Part 2”

Make things that matter, together.

  • We believe everyone deserves to work on products that will be used, enjoyed, and loved – products that matter.
  • Truly excellent products are a team effort.
  • It’s our mission to help product leaders across the globe cultivate these values in their organizations, and we’ve adopted them as well.
  • With productboard, every team can make things that matter – together.

Meet the team behind productboard and find out why we do what we do and how we do the magic.

Continue reading “Make things that matter, together.”

Organizing Tests in Jest – Jeff Lombard – Medium

Organizing Tests in Jest  #jest #javascript #react #softwaretesting #reactjs

  • This includes organization.I’ve seen two popular ways suggested for organizing tests in Jest:Putting all of your test code into a neatly organized /tests directory.Putting your test code next to the files they are testing.Both of these suggestions are valid, but to have the elegance of a master craftsman, we should consider the level of the test that is being written.Testing LevelsThere are many testing levels, but for simplicity we’re just going to talk about two here.
  • “Unit testing refers to tests that verify the functionality of a specific section of code, usually at the function level.
  • |- /main| |- index.js| |- index.test.jsIntegration tests run against many lines of code in many files.
  • So include the type of test right in the name of the and api.int.test.jsConclusionAn ideal set up would look something like this:|- /main| |- index.js| |- index.unit.test.js|- /supporting| |- fetch.js|- /tests| |- /int| | |- api.int.test.jsThat way you can easily find your tests.
  • For unit testing run jest unit and for integration testing run jest int.As with anything, there is no single way of doing this.

If you haven’t already tried out Jest, you should. Even if you’re not using React. It’s dead simple and loaded with some cool features like snapshot testing. Jest does a great job of keeping reports…
Continue reading “Organizing Tests in Jest – Jeff Lombard – Medium”