1589173031
A Searchable List of Components or Scenes in Your App
react-native-component-viewer
A searchable list of components or scenes in your app. Handy for tweaking layout or design without needing to navigate your app to get there.
Especially useful for accessing screens that are hard to get to, or for testing the design of screen in specific difficult-to-test situations (e.g. server failure).
Requires react-native >= 0.43.0. For older versions of RN, please use version 0.4.0 or below.
Installation
This is a pure JavaScript library, so there’s no need to run react-native link or manually add any frameworks or libraries.
npm i -S react-native-component-viewer
- You may need to close and restart the React Native packager.
Dependencies
This will require you to add the Community AsyncStorage to your project dependencies.
npm i -S @react-native-community/async-storage
And follow the instructions for manual linking
Usage
This library does not assume any specific navigation library is in use. As a result it can be configured for us with react-navigation, react-native-router-flux, and others.
Usage in react-navigation
Here’s how to use it with react-navigation:
- First, add a wrapped
ComponentViewercomponent to your list of scenes in a navigator
import React from 'react'
import {ComponentViewer} from 'react-native-component-viewer';
import {createStackNavigator, NavigationScreenProp, NavigationState} from 'react-navigation';
//.. other imports
const ComponentViewerWrapper = ({navigation}: {navigation: NavigationScreenProp<NavigationState>}): ReactNode => (
<SafeAreaView style={{flex: 1}}>
<ComponentViewer onClose={() => navigation.goBack(null)} />
</SafeAreaView>
);
const DebugStack = createStackNavigator(
{
Debug: {
screen: DebugScreen,
navigationOptions: {
title: 'Debug',
},
},
ComponentViewer: {
screen: ComponentViewerWrapper,
navigationOptions: {
title: 'Component Viewer',
headerMode: 'none',
},
},
},
{
initialRouteName: 'Debug',
defaultNavigationOptions,
}
);
The onClose prop above runs the function that closes the list UI when the Done button is pressed on the UI.
Then you can navigate to it as any other screen:
this.props.navigation.navigate('ComponentViewer');
When you first run this you’ll get an empty list. You need to manually register each screen with the system (along with their test prop data) before you can start.
Usage in react-native-router-flux
Here’s how to use it in react-native-router-flux:
- First, add the
ComponentViewercomponent to your list of scenes at the root of your app:
import {ComponentViewer} from 'react-native-component-viewer';
//.. other imports
class MyRootComponent extends React.Component {
render() {
return <Scene key="MyRootScene">
{/* Insert line below.. */}
<Scene key="ComponentViewer" hideNavBar={true} component={ComponentViewer}/>
</Scene>
}
}
- Then, at the point you want to show the debug list UI (e.g. if your in-app settings), call
Actions.ComponentViewer({onClose: Actions.pop}).
The onClose prop above runs the function that closes the list UI when the Done button is pressed on the UI.
Example:
<TouchableHighlight onPress={()=>Actions.ComponentViewer({onClose: Actions.pop})}>
<Text>Click to view scenes</Text>
</TouchableHighlight>
When you first run this you’ll get an empty list. You need to manually register each screen with the system (along with their test prop data) before you can start.
Other navigation systems will be similar - just make sure to pass a function that closes the list as the
onCloseproperty of the<ComponentViewer>component. This’ll ensure theDonebutton on the list returns to your previous page.
Registering test screens
On each screen you want to test, add the following:
import {addSceneTest} from 'react-native-component-viewer'; // <-- Add this import
class MySceneComponent extends React.Component {
//... your scene component here
}
// Add a test scene.
addTestScene(<MySceneComponent
myProp1={'test data'}
myProp2={['more','test','data']}
/>,
{name: 'MySceneComponent'},
);
You can add the same component several times with different data. To do this, add a title property to the the second parameter to addTestScene:
addSceneTest(<MySceneComponent items={[]}/>, {name: 'MySceneComponent', title: 'Empty'});
addSceneTest(<MySceneComponent items={['more','test','data']}/>, {name: 'MySceneComponent', title: 'Three items'});
The component parameter
When you add a scene or component test, you can either pass in a rendered component, like either of the following:
addSceneTest(<MySceneComponent />, {name: 'MySceneComponent'});
addComponentTest(<MyComponent />, {name: 'MyComponent'});
or you can pass in an unrendered component, which Component Viewer will render for you. For example, with functional components:
addSceneTest(({closeThisTest}) => <MySceneComponent onClose={closeThisTest} />, {name: 'MySceneComponent'});
addComponentTest(({closeThisTest}) => <MyComponent onClose={closeThisTest} />, {name: 'MyComponent'});
If you pass in an anonymous functional component, you should always supply an explicit name option as above, because Component Viewer will not be able to reliably find out the name of your component.
If you pass in an unrendered component, Component Viewer will render it with the following props:
- closeThisTest: a 0-argument function; when called it closes the current test.
Note that the list of props that Component Viewer will supply to components may be added to in future, so it’s best to use a functional component that explicitly picks out the ones you want to use.
Making space for header and footer bars
In real app, your screens will normally have a header (and perhaps a footer). This means your actual component has a smaller space to render in.
To support this there’s an optional property wrapperStyle on the second parameter to addSceneTest. This is a standard React Native View style.
Use the padding properties to adjust the rendering inset to your scene. You may want to store the style somewhere central in your app so you don’t have to type it out each time you use addTestScene.
Example:
addSceneTest(<MySceneComponent items={['more','test','data']}/>,
{
name: 'MySceneComponent',
title: 'Three items',
wrapperStyle: {paddingTop: 44, backgroundColor: 'black'}),
}
Testing modals
If you are testing a component with a <Modal> on it, the modal may cover the ‘Close’ button and make it impossible to go back to the list. If your modal has its own close button then you can work around this by:
- registering your modal as a scene using addSceneTest, and
- calling the
closeThisTestcallback from your modal’s close button.
For example, if you write:
import React from 'react';
import {addSceneTest} from 'react-native-component-viewer';
import {Modal, Text, View, Button} from 'react-native';
const MyModal = ({onRequestClose, visible}) => ```
<Modal visible={visible} onRequestClose={onRequestClose}>
<View style={{flex: 1, justifyContent: 'center', alignItems: 'center', backgroundColor: '#fff'}}>
<Text>This is a modal pop-up!</Text>
<Button title="Close this modal" onPress={onRequestClose} />
</View>
</Modal>
);
addSceneTest(({closeThisTest}) => <MyModal onRequestClose={closeThisTest} visible />, {
name: 'MyModal',
});
then the ‘Close this modal’ button inside the modal will take you back to the menu.
Registering Test Components
When testing a component such as a Button, you’ll most likely want to view all the possible states of the button on a single screen
For example:
To do this use the addComponentTest method.
For example:
import {addComponentTest} from 'react-native-component-viewer'; // <-- Add this import
// add tests
const wrapperStyle = {width: 200}; // style of container holding the component - useful for constraining to different sizes
addComponentTest(
<Button type={'large'} title={'Button title'} />,
{
name: 'Button',
title: 'Large button',
wrapperStyle,
}
)
Multiple tests for a single component appear in the ComponentViewer list as a single entry. Tapping the entry displays a ScrollView containing all your tests.
Usage with Redux
If you’re using the react-redux connect method, make sure you pass the ‘unconnected’ version of the component to addTestScene, e.g.:
class MyComponent extends React.Component {
//...
}
export default connect(
state => ({
//.. mapStateToProps
}),
dispatch => ({
//.. mapDispatchToProps
}))(MyComponent);
// we export the connected component, but pass the
// unconnected component to addTestScene
addTestScene(<MyComponent {...testData}/>);
This way you can make sure your test scenes are completely independent of the Redux state.
Other options
By default the list will save and restore your last search term via AsyncStorage. This is useful if you have many registered tests, as it saves you from having to type the search term every time you reload.
Saving your last search can be disabled by setting the optional saveSearch prop to false on ComponentViewer. The default is true.
Download Details:
Author: calvium
GitHub: https://github.com/calvium/react-native-component-viewer
#react-native #programming #development
What is GEEK
Buddha Community
1595491178
Best Electric Bikes and Scooters for Rental Business or Campus Facility
The electric scooter revolution has caught on super-fast taking many cities across the globe by storm. eScooters, a renovated version of old-school scooters now turned into electric vehicles are an environmentally friendly solution to current on-demand commute problems. They work on engines, like cars, enabling short traveling distances without hassle. The result is that these groundbreaking electric machines can now provide faster transport for less — cheaper than Uber and faster than Metro.
Since they are durable, fast, easy to operate and maintain, and are more convenient to park compared to four-wheelers, the eScooters trend has and continues to spike interest as a promising growth area. Several companies and universities are increasingly setting up shop to provide eScooter services realizing a would-be profitable business model and a ready customer base that is university students or residents in need of faster and cheap travel going about their business in school, town, and other surrounding areas.
Electric Scooters Trends and Statistics
In many countries including the U.S., Canada, Mexico, U.K., Germany, France, China, Japan, India, Brazil and Mexico and more, a growing number of eScooter users both locals and tourists can now be seen effortlessly passing lines of drivers stuck in the endless and unmoving traffic.
A recent report by McKinsey revealed that the E-Scooter industry will be worth― $200 billion to $300 billion in the United States, $100 billion to $150 billion in Europe, and $30 billion to $50 billion in China in 2030. The e-Scooter revenue model will also spike and is projected to rise by more than 20% amounting to approximately $5 billion.
And, with a necessity to move people away from high carbon prints, traffic and congestion issues brought about by car-centric transport systems in cities, more and more city planners are developing more bike/scooter lanes and adopting zero-emission plans. This is the force behind the booming electric scooter market and the numbers will only go higher and higher.
Companies that have taken advantage of the growing eScooter trend develop an appthat allows them to provide efficient eScooter services. Such an app enables them to be able to locate bike pick-up and drop points through fully integrated google maps.
List of Best Electric Bikes for Rental Business or Campus Facility 2020:
It’s clear that e scooters will increasingly become more common and the e-scooter business model will continue to grab the attention of manufacturers, investors, entrepreneurs. All this should go ahead with a quest to know what are some of the best electric bikes in the market especially for anyone who would want to get started in the electric bikes/scooters rental business.
We have done a comprehensive list of the best electric bikes! Each bike has been reviewed in depth and includes a full list of specs and a photo.
Billy eBike
https://www.kickstarter.com/projects/enkicycles/billy-were-redefining-joyrides
To start us off is the Billy eBike, a powerful go-anywhere urban electric bike that’s specially designed to offer an exciting ride like no other whether you want to ride to the grocery store, cafe, work or school. The Billy eBike comes in 4 color options – Billy Blue, Polished aluminium, Artic white, and Stealth black.
Price: $2490
Available countries
Available in the USA, Europe, Asia, South Africa and Australia.This item ships from the USA. Buyers are therefore responsible for any taxes and/or customs duties incurred once it arrives in your country.
Features
- Control – Ride with confidence with our ultra-wide BMX bars and a hyper-responsive twist throttle.
- Stealth- Ride like a ninja with our Gates carbon drive that’s as smooth as butter and maintenance-free.
- Drive – Ride further with our high torque fat bike motor, giving a better climbing performance.
- Accelerate – Ride quicker with our 20-inch lightweight cutout rims for improved acceleration.
- Customize – Ride your own way with 5 levels of power control. Each level determines power and speed.
- Flickable – Ride harder with our BMX /MotoX inspired geometry and lightweight aluminum package
Specifications
- Maximum speed: 20 mph (32 km/h)
- Range per charge: 41 miles (66 km)
- Maximum Power: 500W
- Motor type: Fat Bike Motor: Bafang RM G060.500.DC
- Load capacity: 300lbs (136kg)
- Battery type: 13.6Ah Samsung lithium-ion,
- Battery capacity: On/off-bike charging available
- Weight: w/o batt. 48.5lbs (22kg), w/ batt. 54lbs (24.5kg)
- Front Suspension: Fully adjustable air shock, preload/compression damping /lockout
- Rear Suspension: spring, preload adjustment
- Built-in GPS
Why Should You Buy This?
- Riding fun and excitement
- Better climbing ability and faster acceleration.
- Ride with confidence
- Billy folds for convenient storage and transportation.
- Shorty levers connect to disc brakes ensuring you stop on a dime
- belt drives are maintenance-free and clean (no oil or lubrication needed)
**Who Should Ride Billy? **
Both new and experienced riders
**Where to Buy? **Local distributors or ships from the USA.
Genze 200 series e-Bike
Featuring a sleek and lightweight aluminum frame design, the 200-Series ebike takes your riding experience to greater heights. Available in both black and white this ebike comes with a connected app, which allows you to plan activities, map distances and routes while also allowing connections with fellow riders.
Price: $2099.00
Available countries
The Genze 200 series e-Bike is available at GenZe retail locations across the U.S or online via GenZe.com website. Customers from outside the US can ship the product while incurring the relevant charges.
Features
- 2 Frame Options
- 2 Sizes
- Integrated/Removable Battery
- Throttle and Pedal Assist Ride Modes
- Integrated LCD Display
- Connected App
- 24 month warranty
- GPS navigation
- Bluetooth connectivity
Specifications
- Maximum speed: 20 mph with throttle
- Range per charge: 15-18 miles w/ throttle and 30-50 miles w/ pedal assist
- Charging time: 3.5 hours
- Motor type: Brushless Rear Hub Motor
- Gears: Microshift Thumb Shifter
- Battery type: Removable Samsung 36V, 9.6AH Li-Ion battery pack
- Battery capacity: 36V and 350 Wh
- Weight: 46 pounds
- Derailleur: 8-speed Shimano
- Brakes: Dual classic
- Wheels: 26 x 20 inches
- Frame: 16, and 18 inches
- Operating Mode: Analog mode 5 levels of Pedal Assist Throttle Mode
Norco from eBikestore
https://ebikestore.com/shop/norco-vlt-s2/
The Norco VLT S2 is a front suspension e-Bike with solid components alongside the reliable Bosch Performance Line Power systems that offer precise pedal assistance during any riding situation.
Price: $2,699.00
Available countries
This item is available via the various Norco bikes international distributors.
Features
- VLT aluminum frame- for stiffness and wheel security.
- Bosch e-bike system – for their reliability and performance.
- E-bike components – for added durability.
- Hydraulic disc brakes – offer riders more stopping power for safety and control at higher speeds.
- Practical design features – to add convenience and versatility.
Specifications
- Maximum speed: KMC X9 9spd
- Motor type: Bosch Active Line
- Gears: Shimano Altus RD-M2000, SGS, 9 Speed
- Battery type: Power Pack 400
- Battery capacity: 396Wh
- Suspension: SR Suntour suspension fork
- Frame: Norco VLT, Aluminum, 12x142mm TA Dropouts
Bodo EV
http://www.bodoevs.com/bodoev/products_show.asp?product_id=13
Manufactured by Bodo Vehicle Group Limited, the Bodo EV is specially designed for strong power and extraordinary long service to facilitate super amazing rides. The Bodo Vehicle Company is a striking top in electric vehicles brand field in China and across the globe. Their Bodo EV will no doubt provide your riders with high-level riding satisfaction owing to its high-quality design, strength, breaking stability and speed.
Price: $799
Available countries
This item ships from China with buyers bearing the shipping costs and other variables prior to delivery.
Features
- Reliable
- Environment friendly
- Comfortable riding
- Fashionable
- Economical
- Durable – long service life
- Braking stability
- LED lighting technology
Specifications
- Maximum speed: 45km/h
- Range per charge: 50km per person
- Charging time: 8 hours
- Maximum Power: 3000W
- Motor type: Brushless DC Motor
- Load capacity: 100kg
- Battery type: Lead-acid battery
- Battery capacity: 60V 20AH
- Weight: w/o battery 47kg
#android app #autorent #entrepreneurship #ios app #minimum viable product (mvp) #mobile app development #news #app like bird #app like bounce #app like lime #autorent #best electric bikes 2020 #best electric bikes for rental business #best electric kick scooters 2020 #best electric kickscooters for rental business #best electric scooters 2020 #best electric scooters for rental business #bird scooter business model #bird scooter rental #bird scooter rental cost #bird scooter rental price #clone app like bird #clone app like bounce #clone app like lime #electric rental scooters #electric scooter company #electric scooter rental business #how do you start a moped #how to start a moped #how to start a scooter rental business #how to start an electric company #how to start electric scooterrental business #lime scooter business model #scooter franchise #scooter rental business #scooter rental business for sale #scooter rental business insurance #scooters franchise cost #white label app like bird #white label app like bounce #white label app like lime
1595494844
How to start an electric scooter facility/fleet in a university campus/IT park
Are you leading an organization that has a large campus, e.g., a large university? You are probably thinking of introducing an electric scooter/bicycle fleet on the campus, and why wouldn’t you?
Introducing micro-mobility in your campus with the help of such a fleet would help the people on the campus significantly. People would save money since they don’t need to use a car for a short distance. Your campus will see a drastic reduction in congestion, moreover, its carbon footprint will reduce.
Micro-mobility is relatively new though and you would need help. You would need to select an appropriate fleet of vehicles. The people on your campus would need to find electric scooters or electric bikes for commuting, and you need to provide a solution for this.
To be more specific, you need a short-term electric bike rental app. With such an app, you will be able to easily offer micro-mobility to the people on the campus. We at Devathon have built Autorent exactly for this.
What does Autorent do and how can it help you? How does it enable you to introduce micro-mobility on your campus? We explain these in this article, however, we will touch upon a few basics first.
Micro-mobility: What it is
You are probably thinking about micro-mobility relatively recently, aren’t you? A few relevant insights about it could help you to better appreciate its importance.
Micro-mobility is a new trend in transportation, and it uses vehicles that are considerably smaller than cars. Electric scooters (e-scooters) and electric bikes (e-bikes) are the most popular forms of micro-mobility, however, there are also e-unicycles and e-skateboards.
You might have already seen e-scooters, which are kick scooters that come with a motor. Thanks to its motor, an e-scooter can achieve a speed of up to 20 km/h. On the other hand, e-bikes are popular in China and Japan, and they come with a motor, and you can reach a speed of 40 km/h.
You obviously can’t use these vehicles for very long commutes, however, what if you need to travel a short distance? Even if you have a reasonable public transport facility in the city, it might not cover the route you need to take. Take the example of a large university campus. Such a campus is often at a considerable distance from the central business district of the city where it’s located. While public transport facilities may serve the central business district, they wouldn’t serve this large campus. Currently, many people drive their cars even for short distances.
As you know, that brings its own set of challenges. Vehicular traffic adds significantly to pollution, moreover, finding a parking spot can be hard in crowded urban districts.
Well, you can reduce your carbon footprint if you use an electric car. However, electric cars are still new, and many countries are still building the necessary infrastructure for them. Your large campus might not have the necessary infrastructure for them either. Presently, electric cars don’t represent a viable option in most geographies.
As a result, you need to buy and maintain a car even if your commute is short. In addition to dealing with parking problems, you need to spend significantly on your car.
All of these factors have combined to make people sit up and think seriously about cars. Many people are now seriously considering whether a car is really the best option even if they have to commute only a short distance.
This is where micro-mobility enters the picture. When you commute a short distance regularly, e-scooters or e-bikes are viable options. You limit your carbon footprints and you cut costs!
Businesses have seen this shift in thinking, and e-scooter companies like Lime and Bird have entered this field in a big way. They let you rent e-scooters by the minute. On the other hand, start-ups like Jump and Lyft have entered the e-bike market.
Think of your campus now! The people there might need to travel short distances within the campus, and e-scooters can really help them.
How micro-mobility can benefit you
What advantages can you get from micro-mobility? Let’s take a deeper look into this question.
Micro-mobility can offer several advantages to the people on your campus, e.g.:
- Affordability: Shared e-scooters are cheaper than other mass transportation options. Remember that the people on your campus will use them on a shared basis, and they will pay for their short commutes only. Well, depending on your operating model, you might even let them use shared e-scooters or e-bikes for free!
- Convenience: Users don’t need to worry about finding parking spots for shared e-scooters since these are small. They can easily travel from point A to point B on your campus with the help of these e-scooters.
- Environmentally sustainable: Shared e-scooters reduce the carbon footprint, moreover, they decongest the roads. Statistics from the pilot programs in cities like Portland and Denver showimpressive gains around this key aspect.
- Safety: This one’s obvious, isn’t it? When people on your campus use small e-scooters or e-bikes instead of cars, the problem of overspeeding will disappear. you will see fewer accidents.
#android app #autorent #ios app #mobile app development #app like bird #app like bounce #app like lime #autorent #bird scooter business model #bird scooter rental #bird scooter rental cost #bird scooter rental price #clone app like bird #clone app like bounce #clone app like lime #electric rental scooters #electric scooter company #electric scooter rental business #how do you start a moped #how to start a moped #how to start a scooter rental business #how to start an electric company #how to start electric scooterrental business #lime scooter business model #scooter franchise #scooter rental business #scooter rental business for sale #scooter rental business insurance #scooters franchise cost #white label app like bird #white label app like bounce #white label app like lime
1595059664
How long does it take to develop/build an app?
With more of us using smartphones, the popularity of mobile applications has exploded. In the digital era, the number of people looking for products and services online is growing rapidly. Smartphone owners look for mobile applications that give them quick access to companies’ products and services. As a result, mobile apps provide customers with a lot of benefits in just one device.
Likewise, companies use mobile apps to increase customer loyalty and improve their services. Mobile Developers are in high demand as companies use apps not only to create brand awareness but also to gather information. For that reason, mobile apps are used as tools to collect valuable data from customers to help companies improve their offer.
There are many types of mobile applications, each with its own advantages. For example, native apps perform better, while web apps don’t need to be customized for the platform or operating system (OS). Likewise, hybrid apps provide users with comfortable user experience. However, you may be wondering how long it takes to develop an app.
To give you an idea of how long the app development process takes, here’s a short guide.
App Idea & Research
_Average time spent: two to five weeks _
This is the initial stage and a crucial step in setting the project in the right direction. In this stage, you brainstorm ideas and select the best one. Apart from that, you’ll need to do some research to see if your idea is viable. Remember that coming up with an idea is easy; the hard part is to make it a reality.
All your ideas may seem viable, but you still have to run some tests to keep it as real as possible. For that reason, when Web Developers are building a web app, they analyze the available ideas to see which one is the best match for the targeted audience.
Targeting the right audience is crucial when you are developing an app. It saves time when shaping the app in the right direction as you have a clear set of objectives. Likewise, analyzing how the app affects the market is essential. During the research process, App Developers must gather information about potential competitors and threats. This helps the app owners develop strategies to tackle difficulties that come up after the launch.
The research process can take several weeks, but it determines how successful your app can be. For that reason, you must take your time to know all the weaknesses and strengths of the competitors, possible app strategies, and targeted audience.
The outcomes of this stage are app prototypes and the minimum feasible product.
#android app #frontend #ios app #minimum viable product (mvp) #mobile app development #web development #android app development #app development #app development for ios and android #app development process #ios and android app development #ios app development #stages in app development
1651634880
YuccaPrerenderBundle: Symfony2 Bundle to Use Prerender.io
Yucca/PrerenderBundle
Backbone, EmberJS, Angular and so more are your daily basis ? In case of an admin area, that's fine, but on your front office, you might encounter some SEO problems
Thanks to Prerender.io, you now can dynamically render your JavaScript pages in your server using PhantomJS.
This bundle is largely inspired by bakura10 work on zfr-prerender
Installation
Install the module by typing (or add it to your composer.json file):
$ php composer.phar require "yucca/prerender-bundle" "0.1.*@dev"
Register the bundle in app/AppKernel.php:
// app/AppKernel.php
public function registerBundles()
{
return array(
// ...
new Yucca\PrerenderBundle\YuccaPrerenderBundle(),
);
}
Enable the bundle's configuration in app/config/config.yml:
# app/config/config.yml
yucca_prerender: ~
Documentation
How it works
- Check to make sure we should show a prerendered page
- Check if the request is from a crawler (agent string)
- Check to make sure we aren't requesting a resource (js, css, etc...)
- (optional) Check to make sure the url is in the whitelist
- (optional) Check to make sure the url isn't in the blacklist
- Make a
GETrequest to the prerender service (PhantomJS server) for the page's prerendered HTML - Return that HTML to the crawler
Customization
This bundle comes with a sane default, extracted from prerender-node middleware, but you can easily customize it:
#app/config/config.yml
yucca_prerender:
....
Prerender URL
By default, YuccaPrerenderBundle uses the Prerender.io service deployed at http://prerender.herokuapp.com. However, you may want to deploy it on your own server. To that extent, you can customize YuccaPrerenderBundle to use your server using the following configuration:
#app/config/config.yml
yucca_prerender:
backend_url: http://localhost:3000
With this config, here is how YuccaPrerender will proxy the "https://google.com" request:
GET http://localhost:3000/https://google.com
Crawler user-agents
YuccaPrerender decides to pre-render based on the User-Agent string to check if a request comes from a bot or not. By default, those user agents are registered: 'baiduspider', 'facebookexternalhit', 'twitterbot'. Googlebot, Yahoo, and Bingbot should not be in this list because we support escaped_fragment instead of checking user agent for those crawlers. Your site must have to understand the '#!' ajax url notation.
You can add other User-Agent string to evaluate using this sample configuration:
#app/config/config.yml
yucca_prerender:
crawler_user_agents: ['yandex', 'msnbot']
Ignored extensions
YuccaPrerender is configured by default to ignore all the requests for resources with those extensions: .js, .css, .less, .png, .jpg, .jpeg, .gif, .pdf, .doc, .txt, .zip, .mp3, .rar, .exe, .wmv, .doc, .avi, .ppt, .mpg, .mpeg, .tif, .wav, .mov, .psd, .ai, .xls, .mp4, .m4a, .swf, .dat, .dmg, .iso, .flv, .m4v, .torrent . Those are never pre-rendered.
You can add your own extensions using this sample configuration:
#app/config/config.yml
yucca_prerender:
ignored_extensions: ['.less', '.pdf']
Whitelist
Whitelist a single url path or multiple url paths. Compares using regex, so be specific when possible. If a whitelist is supplied, only url's containing a whitelist path will be prerendered.
Here is a sample configuration that only pre-render URLs that contains "/users/":
#app/config/config.yml
yucca_prerender:
whitelist_urls: ['/users/*']
Note: remember to specify URL here and not Symfony2 route names.
Blacklist
Blacklist a single url path or multiple url paths. Compares using regex, so be specific when possible. If a blacklist is supplied, all url's will be pre-rendered except ones containing a blacklist part. Please note that if the referer is part of the blacklist, it won't be pre-rendered too.
Here is a sample configuration that prerender all URLs excepting the ones that contains "/users/":
#app/config/config.yml
yucca_prerender:
blacklist_urls: ['/users/*']
Note: remember to specify URL here and not Symfony22 route names.
Testing
If you want to make sure your pages are rendering correctly:
- Open the Developer Tools in Chrome (Cmd + Atl + J)
- Click the Settings gear in the bottom right corner.
- Click "Overrides" on the left side of the settings panel.
- Check the "User Agent" checkbox.
- Choose "Other..." from the User Agent dropdown.
- Type googlebot into the input box.
- Refresh the page (make sure to keep the developer tools open).
Thanks
- Thanks to bakura10 for the Zend Framework version.
- Thanks to Romain Boyer to make me discover prerender.io
- Thanks to the prerender team and all JS MVC developpers
Author: rjanot
Source Code: https://github.com/rjanot/YuccaPrerenderBundle
License: MIT License
1651033740
ThruwayBundle: Bundle for Building Real-time Apps in Symfony
ThruwayBundle
This a Symfony Bundle for Thruway, which is a php implementation of WAMP (Web Application Messaging Protocol).
Note: This project is still undergoing a lot of changes, so the API will change.
Quick Start with Composer
Install the Thruway Bundle
$ composer require "voryx/thruway-bundle"Update AppKernel.php (when using Symfony < 4)
$bundles = array(
// ...
new Voryx\ThruwayBundle\VoryxThruwayBundle(),
// ...
);Configuration
#app/config/config.yml
voryx_thruway:
realm: 'realm1'
url: 'ws://127.0.0.1:8081' #The url that the clients will use to connect to the router
router:
ip: '127.0.0.1' # the ip that the router should start on
port: '8080' # public facing port. If authentication is enabled, this port will be protected
trusted_port: '8081' # Bypasses all authentication. Use this for trusted clients.
# authentication: false # true will load the AuthenticationManager
locations:
bundles: ["AppBundle"]
# files:
# - "Acme\\DemoBundle\\Controller\\DemoController"
#
# For symfony 4, this bundle will automatically scan for annotated worker files in the src/Controller folder
With Symfony 4 use a filename like: config/packages/voryx.yaml
If you are using the in-memory user provider, you'll need to add a thruway to the security firewall and set the in_memory_user_provider.
#app/config/security.yml
security:
firewalls:
thruway:
security: false You can also tag services with thruway.resource and any annotation will get picked up
<service id="some.service" class="Acme\Bundle\SomeService">
<tag name="thruway.resource"/>
</service>
Note: tagging a service as thruway.resource will make it public.
services:
App\Worker\:
resource: '../src/Worker'
tags: ['thruway.resource']Authentication with FOSUserBundle via WampCRA
Change the Password Encoder (tricky on existing sites) to master wamp challenge
#app/config/security.yml
security:
...
encoders:
FOS\UserBundle\Model\UserInterface:
algorithm: pbkdf2
hash_algorithm: sha256
encode_as_base64: true
iterations: 1000
key_length: 32set voryx_thruway.user_provider to "fos_user.user_provider"
#app/config/config.yml
voryx_thruway:
user_provider: 'fos_user.user_provider.username' #fos_user.user_provider.username_email login with email
The WAMP-CRA service is already configured, we just need to add a tag to it to have the bundle install it:
wamp_cra_auth:
class: Thruway\Authentication\WampCraAuthProvider
parent: voryx.thruway.wamp.cra.auth.client
tags:
- { name: thruway.internal_client }Custom Authorization Manager
You can set your own Authorization Manager in order to check if a user (identified by its authid) is allowed to publish | subscribe | call | register
Create your Authorization Manager service, extending RouterModuleClient and implementing RealmModuleInterface (see the Thruway doc for details)
// src/ACME/AppBundle/Security/MyAuthorizationManager.php
use Thruway\Event\MessageEvent;
use Thruway\Event\NewRealmEvent;
use Thruway\Module\RealmModuleInterface;
use Thruway\Module\RouterModuleClient;
class MyAuthorizationManager extends RouterModuleClient implements RealmModuleInterface
{
/**
* Listen for Router events.
* Required to add the authorization module to the realm
*
* @return array
*/
public static function getSubscribedEvents()
{
return [
'new_realm' => ['handleNewRealm', 10]
];
}
/**
* @param NewRealmEvent $newRealmEvent
*/
public function handleNewRealm(NewRealmEvent $newRealmEvent)
{
$realm = $newRealmEvent->realm;
if ($realm->getRealmName() === $this->getRealm()) {
$realm->addModule($this);
}
}
/**
* @return array
*/
public function getSubscribedRealmEvents()
{
return [
'PublishMessageEvent' => ['authorize', 100],
'SubscribeMessageEvent' => ['authorize', 100],
'RegisterMessageEvent' => ['authorize', 100],
'CallMessageEvent' => ['authorize', 100],
];
}
/**
* @param MessageEvent $msg
* @return bool
*/
public function authorize(MessageEvent $msg)
{
if ($msg->session->getAuthenticationDetails()->getAuthId() === 'username') {
return true;
}
return false;
}
}Register your authorization manager service
my_authorization_manager:
class: ACME\AppBundle\Security\MyAuthorizationManagerInsert your service name in the voryx_thruway config
#app/config/config.yml
voryx_thruway:
...
authorization: my_authorization_manager # insert the name of your custom authorizationManager
...Restart the Thruway server; it will now check authorization upon publish | subscribe | call | register. Remember to catch error when you try to subscribe to a topic (or any other action) as it may now be denied and this will be returned as an error.
Usage
Register RPC
use Voryx\ThruwayBundle\Annotation\Register;
/**
*
* @Register("com.example.add")
*
*/
public function addAction($num1, $num2)
{
return $num1 + $num2;
}Call RPC
public function call($value)
{
$client = $this->container->get('thruway.client');
$client->call("com.myapp.add", [2, 3])->then(
function ($res) {
echo $res[0];
}
);
}Subscribe
use Voryx\ThruwayBundle\Annotation\Subscribe;
/**
*
* @Subscribe("com.example.subscribe")
*
*/
public function subscribe($value)
{
echo $value;
}Publish
public function publish($value)
{
$client = $this->container->get('thruway.client');
$client->publish("com.myapp.hello_pubsub", [$value]);
}It uses Symfony Serializer, so it can serialize and deserialize Entities
use Voryx\ThruwayBundle\Annotation\Register;
/**
*
* @Register("com.example.addrpc", serializerEnableMaxDepthChecks=true)
*
*/
public function addAction(Post $post)
{
//Do something to $post
return $post;
}Start the Thruway Process
You can start the default Thruway workers (router and client workers), without any additional configuration.
$ nohup php app/console thruway:process start &
By default, the router starts on ws://127.0.0.1:8080
Workers
The Thruway bundle will start up a separate process for the router and each defined worker. If you haven't defined any workers, all of the annotated calls and subscriptions will be started within the default worker.
There are two main ways to break your application apart into multiple workers.
Use the worker property on the Register and Subscribe annotations. The following RPC will be added to the posts worker.
use Voryx\ThruwayBundle\Annotation\Register;
/**
* @Register("com.example.addrpc", serializerEnableMaxDepthChecks=true, worker="posts")
*/
public function addAction(Post $post)Use the @Worker annotation on the class. The following annotation will create a worker called chat that can have a max of 5 instances.
use Voryx\ThruwayBundle\Annotation\Worker;
/**
* @Worker("chat", maxProcesses="5")
*/
class ChatControllerIf a worker is shut down with anything other than SIGTERM, it will automatically be restarted.
More Commands
To see a list of running processes (workers)
$ php app/console thruway:process status
Stop a process, i.e. default
$ php app/console thruway:process stop default
Start a process, i.e. default
$ php app/console thruway:process start default
Javascript Client
For the client, you can use AutobahnJS or any other WAMPv2 compatible client.
Here are some examples
Symfony 4 Quick Start
composer create-project symfony/skeleton my_projectcd my_projectcomposer require symfony/expression-languagecomposer require symfony/annotations-packcomposer require voryx/thruway-bundle:dev-masterCreate config/packages/my_project.yml with the following config:
voryx_thruway:
realm: 'realm1'
url: 'ws://127.0.0.1:8081' #The url that the clients will use to connect to the router
router:
ip: '127.0.0.1' # the ip that the router should start on
port: '8080' # public facing port. If authentication is enabled, this port will be protected
trusted_port: '8081' # Bypasses all authentication. Use this for trusted clients.Create the controller src/Controller/TestController.php
<?php
namespace App\Controller;
use Voryx\ThruwayBundle\Annotation\Register;
class TestController
{
/**
* @Register("com.example.add")
*/
public function addAction($num1, $num2)
{
return $num1 + $num2;
}
}Test to see if the RPC has been configured correctly bin/console thruway:debug
URI Type Worker File Method
com.example.add RPC default /my_project/src/Controller/TestController.php addAction For more debug info for the RPC we created: bin/console thruway:debug com.example.add
Start everything: bin/console thruway:process start
The RPC com.example.add is now available to any WAMP client connected to ws://127.0.0.1:8081 on realm1.
Author: Voryx
Source Code: https://github.com/voryx/ThruwayBundle
License: