Development Environment Setup

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From the course by Johns Hopkins University

Capstone: Photo Tourist Web Application

18 ratings

Johns Hopkins University

Capstone: Photo Tourist Web Application

18 ratings

Course 6 of 6 in the Specialization Ruby on Rails Web Development

In this Capstone project for the Photo Tourist you will implement a Ruby on Rails web application that makes use of both a relational and NoSQL database for the backend and expose the data through services to the Internet using Web services and a responsive user interface operating in a browser from a desktop and mobile device. You will have a chance to revisit and apply what you have learned in our previous courses to build and deploy a fully functional web application to the cloud accessible to your co-workers, future employers, friends, and family. In developing the Photo Tourist web application, you will get to work with different data types and data access scenarios (e.g., fielded data display and update, image upload/download, text search, access controlled information) to provide your users the ability to show off their photos and information from trips they have taken and to seek out photos and information from trips taken by others. Using the application you develop, your users will be able to • Create an account • Upload and download photos to the site and make them accessible to others • Provide descriptions of trips and photos that others can read • Organize photos by location and trip, • Find photos based on location • Find photos based on text searches of descriptions • Locate the place where the photo was taken on a map

From the lesson

Technical Architecture and API Development Setup

In this module, we will start your journey into being part of an end-to-end application development as a Rails/AngularJS fullstack developer intern. You will learn the technical architecture and software requirements of the targeted application you will be a part of developing. You will also get a chance to shake off any rust that may have accumulated on your Rails development skills. As a part of the technical architecture, you will learn of the various layers, technologies, libraries, and services used in the development, deployment, and operation of the targeted application. You will get an early sense that this course is "no joke" when it comes to challenges, but you will be shown a path through most of them. You may be able to skip the application installation until the end if you are using the same computer that you used in the first five (5) courses of the specialization. None of the new software installations are required for this module -- but are included in a single lesson for modularity. You will develop an end-to-end, API-to-Database, resource solution for ActiveRecord/RDBMS and Mongoid/MongoDB using Rails scaffold generator. You will establish a Git repository for this work, provision database and Rails resources on the internet for staging and production deployments, and deploy your solution to the Heroku to be accessible from the Internet. If you are a seasoned Rails developer and competent with ActiveRecord, Mongoid, and Heroku -- you may want to initially skip the review lectures, review the final Git commit for module one (1), and try your hand at the optional assignment at the end. Aside from the technical architecture lesson, this module is mostly a quick breeze through many of the topics of courses one (1) through three (3). A similar, small-scale review of courses four (4) through five (5) will be covered in the next module. Please enjoy! Also, if you have not done so already I recommend that you read the Course Overview description which provides additional context on what you will be doing in this course. To access, please click the Resources tab on the left navigation.

Course Introduction7:15

Module 1 Introduction3:44

Technical and Deployment Architecture (Part 1)11:22

Technical and Deployment Architecture (Part 2)14:31

Technical and Deployment Architecture (Part 3)14:15

Development Environment Setup4:56

Software Installation: MacOS13:49

Software Installation: Specifics for Windows29:39

Software Installation: Specifics for Linux and Docker15:49

Meet the Instructors

Jim Stafford
Adjunct Professor, Graduate Computer Science
Computer Science, Whiting School of Engineering

[MUSIC]

In this module we're going to be talking about development environment setup.

We're going to get started with the software installation, we will be going

through many software installations as a part of these instructions.

Much of what we're going to install will be used during this module.

However, there are some significant installations that are not going to be

used until later in the course.

But we want to cover them here for completeness.

The good news is it's assumed that you've already installed and have a fair amount

of familiarity with a significant number of the items that we'll be talking about.

However, I do want to point out that more than likely you'll have to

upgrade your installation of PhantomJS,

because the previous courses really didn't stress out the JavaScript testing.

And we want to make sure that your headless browser is up to snuff before we

get into some detailed testing.

Also, previous courses didn't stress having PostgreSQL, they relied on SQLite.

It's ideal that you have that installed,

it's not the end of the world if you can't.

But the Rails-api, is just a gem, it's going to be a simple install.

Chrome Driver, that's going to be needed for

doing Selenium testing, so we do need Chrome.

Obviously the latest just as a browser, but there is driver between Selenium and

Chrome that needs to be in the 2.25 level.

Firefox.

This browser is going through a major architectural change that the Selenium

drivers to Firefox are a little slow in catching up to being full capability.

So if you are going to use Firefox with Selenium as an alternative

to Chrome with Selenium, you have to make sure that you

have the v45.x Extended Support Release version installed.

The current release of Firefox is around 50, and in order to go back to 45 ESR,

it is hidden in the weeds and we have to know where to go to look for it.

ImageMagick, that'll be used to scale down, and adjust, and

manipulate our images.

We need to make sure that we're at the version 6 of ImageMagick and not 7.

With ImageMagick 7 they changed some of the commands,

the command lines to that application, and

we are using a gem that relies on the command line interface to that.

So make sure that you're paying attention to the version that's going on there.

We're going to be demonstrating the installations on three platforms,

MacOS El Capitan, Windows 10 Home, and Linux in a Docker form.

This assumes that you are familiar with OS that you'ill be watching, you don't need

to watch all three, you only need to watch the one that you've installed.

And if you've got most of the products installed,

you can skim through it pretty quick.

The Linux and Docker instructions are satisfying two things at once.

For one, I wanted to show Linux installations, and

they are shown inside of Docker VM's.

Two, you know how I've said that testing's a first class citizen as a part of

a capstone.

We need it as we start building up capabilities.

So you'll notice that all the examples that get posted are Docker ready so

that I can deploy them to my automated build server.

And be able to much more earlier detect that there's

an error in one of the solutions.

This is not a course in Docker.

If you go down that route, I'm assuming that you already know Docker and

just as much as Windows and MacOS, you're just looking to say,

how do I do some things that I'm used to doing with these new technologies?

Okay, so based on what we've covered, we know as we go through the OS specific

instructions we're going to see many of the products we probably already have

installed in the past, may need to do an upgrade of, but at least what it does is

it gives you a mindset as to the various tested platforms.

That have gone into the capstone, and how your environment might relate to that.

Some of the items that we're installing aren't going to be used right away.

They will be used in the coming modules, but they were important enough,

and we wanted to be all inclusive, to cover them now.

So let's get started in verifying that our platform is ready for the course.

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