Originally published by Andrew Bestbier at https://medium.com
What we will be building:
Here is a deployment of the app we will be building: https://react-s3-intro.co.uk/ (Notice the custom URL and HTTPS).
The technologies used in this guide are:
For this introduction, we will be using Create React App. To get started, run the following commands in your terminal:
npx create-react-app introduction cd introduction yarn start
If you navigate to http://localhost:3000/ you should see the following:
We won’t be developing the front-end any further in this tutorial.
The code then needs to be hosted on Github where we will continually push new code as we develop features. In Github, click the shortcut
You should then see the following page:
Name your repository (I named mine ‘introduction’) and click
From here follow the on screen instructions by typing these commands into the terminal where you created your app: (Note that you need to alter the the repository in bold to use the repository that you just created):
git init git add . git commit -m "first commit" git remote add origin email@example.com:AndrewBestbier/introduction.git
git push -u origin master
You should then see all the starter code in Github:
If you don’t have SSH set up, I recommend taking a look at this article: https://help.github.com/en/enterprise/2.15/user/articles/adding-a-new-ssh-key-to-your-github-account.
Now we will move on to storing your built app in AWS S3. First login to the AWS management console and navigate to the S3 service:
As you can see in my screenshot, I have a few buckets in S3 already which I have covered with a pink box.
Create bucket where you will be prompted to enter a bucket name (It has to be unique globally) before clicking
Next. I have chosen my bucket name to be ‘andrew-aws-introduction’:
Configure options tab, you don’t need to do anything so again click
Next . On the
Set permissions tab, you need to uncheck
Block all public access. As we will be hosting your built app with this bucket, we will need the public to access your code.
Next again, review your bucket configuration and click
Create bucket. You should see your new bucket:
Now click on your bucket as some further configuration is needed.
Click on the
Properties tab and then the
Static website hostingbox.
Use this bucket to host a website. Also specify that the index document should be index.html before saving:
If you attempt to navigate to provided endpoint, you will see an error saying that access is denied:
To fix this, navigate to the the
Permissions tab and click
Enter the following policy so that public users can read information from your bucket: (Remember to change the bolded text below to your own bucket name)
If you now visit your website again, you will see a different error but this is because your bucket is empty and therefore does not have an index.html file:
To remedy this, go to your terminal and build the application with:
Go to the
Overview tab of your bucket, click
Upload and drag the contents of the build folder (not the folder itself) onto the screen and click the modal’s
If you navigate to the bucket’s url, you should see your React application:
In this step we will set up continuous deployment so that each code push to your repository will automatically be deployed to your S3 bucket. To do so, we will be using Buddy https://buddy.works.
First, login to Buddy. If this is your first time using this service, you should see this introductory screen:
Create a new project by connecting to Github and selecting the repository you created earlier:
Once you have linked Buddy and Github successfully we can build a new deployment pipeline:
Call your pipeline whatever you wish and trigger the pipeline
A few actions then need to be defined. The first is building your application from the source code to be ready for deployment. Click
add the first action and search for ‘Node.js’. Ensure that the following commands are run:
yarn // Installing dependencies
yarn build // Building your application
Now, on every push to your repository, your application will be built. We now need to add another action to take these built files and deploy them to your S3 bucket. Unfortunately, connecting Buddy to AWS is not as simple as it is with Github. You need to create a special account so that Buddy can programatically control some resources on your AWS account. In this example, we want Buddy to be able to access and write files to your new bucket.
Navigate to the IAM (Identity Access Management) service in AWS and click
Add user give them a username (I chose BuddyClient) and select
Permissions page click
Attach existing policies directly and search for
AmazonS3FullAccess. This policy will enable Buddy to write to your new bucket without being able to access any other AWS resource.
Next and add tags if you wish. Finally, click
You will now see an Access key ID and Secret access key. Copy these to a secure location as this is your only opportunity to view these credentials.
Now switch back to Buddy so that we can add a new action to our pipeline. Search for ‘S3’:
A modal will then appear prompting you to input the credentials we generated earlier through IAM:
Then configure the action as follows:
Your pipeline should now look like this:
Run pipeline to check that everything is working properly:
Now test this all out by making a change locally and pushing a commit to Github. Buddy should automatically run your pipeline and deploy your app to S3.
At the moment your application has an ugly url which we can fix by purchasing a domain through Route 53 which is Amazon’s scalable DNS and Domain registration service.
First, navigate to Route 53 and type the domain name you wish to buy. In case, I typed ‘react-s3-intro.co.uk’:
Fortunately this domain was available so I added it to my Shopping cart:
AWS then requires a few personal details which I have blocked out below. Agree to the terms and click
This can take a few days to register (although it took me only 10 minutes). We will now pause any further work on Route 53 and come back to it at a later stage.
Important! for this step you will need to change your region to Northern Virginia as your CDN is global and therefore needs a certificate based in Northern Virginia. This step trips many people up.
Click on Certificate Manager which is Amazon’s service that provisions and manages and deploys SSL/TLS certificates. On this screen click
Request a certificate:
Request a public certificate, and then
Request a certificate
You then need to add the details of the domain name you purchased earlier. In my case, these were react-s3-intro.co.uk and www.react-s3-intro.co.uk respectively. If you wish, you can also use a wildcard
DNS validation and
To validate your certificates automatically through AWS, click the small arrow next to each Domain. These should expand to reveal buttons saying
Create record in Route 53. Click these buttons so that AWS can configure all this for you
Continue and wait for your certificates to be validated
Next, we will create a CDN through CloudFront so that your website can be accessed quickly anywhere in the world. Open CloudFront and then click
Web as the distribution you wish to create
For ‘Origin Domain Name’, input the url of your S3 bucket (note that you shouldn’t use the dropdown here, input it yourself)
Further down the page, input your new domain name in ‘Alternate Domain Names’ (mine is react-s3-intro.co.uk). Below that, select
Custom SSL Certificate and select your newly created certificate. If your certificate does not appear, you probably missed the step earlier where I specified that it must be create in the Northern Virginia region
No further changes are needed so create the distribution and make yourself a coffee as it takes about 30 minutes to spin up
When your CDN is up and running, navigate back to your hosted zone in Route 53
Create Record Set and a modal should appear from the right. Leave the ‘Name’ empty, set the ‘Type’ to ‘A — IPv4 address’ and set ‘Alias’ to ‘Yes’. Here the Alias Target should be the url of your newly created CloudFront distribution — this should be available in the drop down box that appears. Finally click
https://YOUR_DOMAIN (note the https) and you should see your app securely displayed
Finally, on each code push we want the caches to be purged on your CDN network. To do this, we need to give Buddy access to CloudFront. Navigate to the User you created earlier in IAM and click
Attach existing policies directly and search for ‘CloudFrontFullAccess’
Switch back to buddy so that we can add a final action to your pipeline. Search for ‘CloudFront’
If Buddy does indeed have access, you should be able to select the Distribution you wish to purge:
Your final pipeline should look like this:
If you have made it this far, congratulations!
Thanks for reading ❤
If you liked this post, share it with all of your programming buddies!
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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.
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.
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.
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.
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.
Why Should You Buy This?
**Who Should Ride Billy? **
Both new and experienced riders
**Where to Buy? **Local distributors or ships from the USA.
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.
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.
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.
This item is available via the various Norco bikes international distributors.
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.
This item ships from China with buyers bearing the shipping costs and other variables prior to delivery.
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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.
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.
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.:
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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.
_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.
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As COVID-19 staggeringly lands blows to nations across the world, governments are considering ways to see their citizens through this pandemic. At the moment, a WHO situation report clocks the number of confirmed cases above two million along with more than one hundred thousand deaths. With vaccines dubbed as the best possible chance to tackle COVID-19 having no precise time frame of being ready, the talk is quickly shifting away to Contact Tracing Applications.
Contact tracing apps are digital solutions that use mobile technology to power the process of manual contact tracing. The apps follow a user’s movement, either by the use of Bluetooth technology, QR codes, or geo-location data while also tracking and keeping data from other user phones nearby. If one user gets diagnosed, the apps alert other users that they may have been exposed to the virus. As such, Contact Tracing Applications are being welcomed and perceived as an important approach to stem the spread of COVID-19 by providing a more accurate platform with data and information about affected individuals.
As mentioned above, contact tracing apps leverage mobile technology to trace cases of possible infection more accurately. But how exactly? Once installed and operative, the phone runs the app simultaneously with Bluetooth or location data to transmit signals with unique keys or IDs to phones in the designated range of connection. Similarly, the other phones with the app installed to detect and send back the signals.
For instance, if ‘Individual A’ has the app installed and goes outdoors to run some errands, they will interact with other individuals. In such a case, supposing all the other individuals had functional Contact Tracing Apps, each phone would exchange and store the contact data anonymously. It is important to note that the data collected only covers the app range distance to disregard irrelevant contacts and that their keys repeatedly change as individuals move. In any event that ‘Individual A’ tests positive for COVID-19 through confirmed tests, users who were previously within the proximity of ‘Individual A’ are alerted. Consequently, they are notified to check for symptoms, self-isolate, or get tested. Each time a person tests positive, the app notifies and advises the affected individuals.
In a nutshell, Contact Tracing Apps automate and supplement the traditional concept of tracing contacts to achieve extensive and realistic results in the least time possible.
Contract Tracing Apps are assets that offer indispensable solutions to health institutions and the public against COVID-19. There are several reasons why many governments are urging their citizens to use digital contact tracing apps to combat the spread of COVID-19. They include:
Currently, the role of contact tracing apps is limited to accurately identifying infected individuals and their contacts as well as facilitating a quicker response to the Covid-19 threat.
Beyond that, the use of contact tracing apps is projected to take a different turn. One key area bound to change is how people’s privacy is handled. Tech institutions are under growing pressure to devise ways to develop privacy-preserving Contact Tracing Apps.
This will earn the users-trust, which is a pillar for these apps to help contain the disease. Technically, the technology will also have to improve drastically. The apps will have to seamlessly integrate with the user’s phone lifestyle causing minimal or no interference. With most applications having an open-source code, Artificial Intelligence, Beacon Technology, and Big Data solutions will be increasingly harnessed to power and improve them. The apps may also cut across various types of industries apart from health institutions.
Contact Tracing Apps will effectively help stem lowering the cases of COVID-19. By using the apps, officials are able to monitor high-risk individuals easily. Also, should any new case arise, both users and health officials get notified they will swiftly act to trace, test, or isolate infected individuals.
Unlike traditional contact tracing, which may not get all contacts, these apps ensure that once Covid-19 cases are detected, they are all treated early, and those other individuals are not exposed to the infection. They also ward off users from high-risk areas. In the long run, they help break the COVID-19 chain by preventing further spread. Illustratively, an online publication by CNBC states that more than 500,000 using a Singapore-registered mobile number downloaded the TraceTogether app within the first 24 hours of its launch. Subsequently, together with other government efforts, Singapore has since lowered the infection rate and eased restrictions.
If Contact Tracing Apps are implemented and used alongside other policies, we may as well be a few steps way to curbing this virus.
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