backend development with pythonbackend development with python

So take into lambda scores and easy to learn Python with a very good decision for your programming journey. And then the next thing that should be clear is the user And the user is Postgres, so just use us us Postgres. Now when we run this, we put the value of licence to cease. Since I have one object in my database, I don't need to use all these that I created. Right here you see the value in the URL is BK. Now when we run this, you see now it is 12345. So the best thing to do is to just take the main directory to dads and then paste it needs this slash like this. Now we come in here, we should have that one page here. So that is what we also need to use to enter our for loop. But because we are starting from the basics of Django, I would like to introduce you to the Django admin py first. And then, as you can see, this is 11:30pm. So now if we come here and click enter, again, we don't have anything here because wising posts instead of post return is, but let's leave it at that. So I put the list, but the name of this is lists. I can do this by just coming after the index of HTML, you just add the curly braces, and then the name of the variable name. Learn Backend Development with Python We're building a tutorial that will teach you how to build an online marketplace. Remember that when concatenating yukako calcination numbers, wake up caucus needs restring. So right here, we can just drag this or we can just copy. And if I do, I'm going to leave a link to the description, the description. So that's gonna be all about working with numbers. Let's come into our browser as open a new tab. So we just say countries want to get from Ghana to the end, we can just say, our square bracket, one and a column. So now if we think about it, it let's say we have all this coming from our database. PHP 6. So now that I know I have the rest framework installed, I can use the library in other module in our project. And I'm gonna use normal brackets parenthesis, and it has to be double. So if you want to check that out, there are countless tutorial series on YouTube about it, you can check it out. Here's where we see dir is right here to save base dir slash template. So what we are just going to do now is to just glide with configuring our templates. And now let's just start with the URL mapping. Well, now we can also send, make this more formatted. Now if I call me and I put an ash tag, right beside D Like this, you see that this is grayed out is no more part of our code, it's still there. Now, this is what we're going to be building in this video. In templates, we're just gonna get our HTML template, which we want to use, and then we're going to fix it into this template folder. Now this user as a token, let me now show you how you can use this talking in postman, so you can authenticate. Now, let me explain why all this happens. And we don't need to say that name, because you already have that name. So just the way we configured for the template file, remember, earlier in this tutorial, we actually go to the settings of this project, and we are to tell Django where all these template files are located. So for now, we don't need message berlage as important down because we're later going to use it. And by now you should know the reason why that's because we have Django installed on our computer. We what we've done to this point is that a user can create a new room, enter that room, so it's gonna be on a dynamic URL, and then the user can send a message and that message will be saved in the database. What are some other ways we can do this, we're going to talk about seats. And then we just leave like a comma, static. And then we want this list to to just be let's see a bunch of fruits so we have a banana and then we have abuse men goes unless you're English. So that's code is not seen in our code block. The next thing we want to do is to create a Django project because we want to work with Django. We are going to do something like list one dot append dot extend want to extend it with listen to now also drains least one What is this gonna give me is the these joint with these. When I when I send a form using a POST method, I'm not sending a form to this page, the method is different, as you can see now is a POST method. In this tutorial, we're gonna be talking about the Django rest framework. So in this part of the tutorial, we're going to be talking about comments in Python. And that is me, which was the user I created, right here in the command line interface. This means we will learn how to build software that can power multiple frontends, including websites, mobile applications or desktop applications. So this is just gonna run this while loop, as long as one is i is less than six, it's just gonna print it to the screen, and then it's gonna increase it by one, then run it again, run it again, until it makes sure that it doesn't pass six, it doesn't reach six. Now, when is open or close parentheses, we're gonna ask the user what we want him to input. This static file, as I said, is going to contain all the external files we need. And then what I just want to do is to say lists. We accomplish this by creating thousands of videos, articles, and interactive coding lessons - all freely available to the public. Or if a is greater than or equals to B, then we'll say ratio say true or something like that. I'm going to leave it in the description below. So this is supposed to show everything, I guess, because I'm not using Chrome. So we know we send in a message with entering and doing stuff like that. Backend Step by step guide to becoming a backend developer in 2023 DevOps Step by step guide for DevOps or operations role . And then I'm going to come into the folder. Now this is going to print five, because we're saying that P one is equals to my class, which is this class, then we'll just say print p one dot x, once I run this, it brings five. And those are the most important things are going to need anytime we're working with any projects in Django. So what this is going to do is we don't need to create a new view in views of UI. So let's just copy these views. So this Ajax is not with Python is actually with JavaScript. So instead of using the square brackets, we can also use something we call lists. So the user name is the current user that logged in. So I commented that out, because we don't need it, but we just want to do is to show it in our UI. So instead of having name, okay, let's see, right here. So there is no specific name you have to give this is just make sure that this and this correlates. And now, what we just want to do, so this is not just taking a request. Now, we can also make this more add some more features like right here, in the URLs. And then let's come here, and it's refresh. And then I can just when I come here, I can run new dot p y, you see now that it just simply prints out this is a new file, which was the command or the line we put in yet. So this is just a boring definition of it. Now let's say we want to get the length of this And it is very easy to get just seen Len. We're going to take in four parameters. So let's say Pip, install Django rest framework. Boss, this is the homepage, I can just leave you blank. So if I print something like print, alright, this is a string, string, or just plain text. But what I want to do now is to come into my own dot html. And that's what we're gonna continue using for this video. So now, let me just type a message like, Hey, guys, and I sent you can see it says message sent successfully. And then there's return say return render. So as you can see, it says requirement already satisfied. This Django project is calm, the main one is the main URL as the URL when what the user should see when it enters our site. So now when I run these, you'll see now that we have a new.py file. So this prevent default is going to prevent that from reloading or going to another page. So they just we don't need to say style, we can just add it in the queue this time. And then I'm gonna create a new Python, a new Django app for the smart project. And then there is countries dot txt, c o u n t ri is CE o u n t ri ES. So let me say, let me try to call cat needs with a name. Before we can give the user the chance before you can give the user the way or something to be able to use our API. As you can see, it says requirement already satisfied. For righty now, we're not saying views or anything, since we're already configured that in the app, but I was gonna say, include my up those URLs. How to Become a Backend Developer: Important Skills to Learn - Kinsta So now, we can just say want to get only the first letter. So when I run these, you see it gives me 3456, it doesn't start from zero. So that basically the main thing you need to know when to find the list. Let me just remove this form, we don't need it again. But Python has some built in function, which you can automatically use. So for this name, we cannot specify Andre it shouldn't be more than 100. So now, what I just want to do is to say, the percentage sign and close that, and then I'm just gonna say URL. We'll say for message a messages, like an H five, that just showcase the message. So as I run it, you see it says false, so it's going to give me a true or false response. That's why we have something we call model view template. Now we want to use Ajax also, again, to load these messages data in real time. Now that we have all those details that we need, all I just want to do now is to pass it into our HTML. Now, this can be different for everybody. But there's also a better way to do this in Python, you can just easily add the let's say you have a code block, or you have a function like my phone, Shawn. We come down, it's your fresh data, in which we add right here. So now what we want to do, is that we want this action to go to counter is very easy, we're just going to do in action, we'll just put the name of the URL, which is counter. Another new view, I say, posts, service shaky vs post return s, so posts, and you're gonna take a request. But now, if value is J, you should break before even printing. So now once I print the list like this, I'll just say print. So now that we know that room ID, we cannot get all the messages. Let's say ah, let's say we want a module like, let's just go to the home page. Let's come into our Vish command prompt and say work on my app. So say the class will be student serializer. So we knew that we have numbers, multiples of five, or something like that, that means the numbers which five can be divided by So we have five itself, we have 10 1520, where we give you like 17, we want to tell us that 17 cannot be five cannot be divided by 70, something like that. Now this is going to be a post not to get and then you just gonna take exactly the same thing that should be self. So follow disease for iterating over a sequence. So later, we're gonna create an app where we're gonna use serializers and stuff like that. And then we can just add a new attribute and say my and this is going to add this my app into your main project. And then it should take me to the folder which should take me to the file manager. So we can mix different data types in a list. So all these, we're not able to assess them, because we are able to assess them because they're already built in Python. So now once we have all this, we're just going to print sentence dot replace. A backend web developer's responsibility is to create and maintain all the technology at the back end of a website. So these views we imported is basically just as views.py file here, when I come here, I have a new function named index, it does take a request, I'm also going to explain all of this, and then I can pass for now. So now you see we have bananas, apples and mangoes, no more orange. Now this is a for each letter in ello, which is h e l l, we just want to print a letter. So now you've seen how to render an HTML template, or template file in a Django URL. Now when I print Jerry, let me just run this, you see now we have a banana then we have cherry in between. And now we are just passing it to the HTML with the features and features. So that's basically basic arithmetic operation with Python, we can go further just what we did with strings, we can go further and use the beauty number functions. So it's either a get method or a POST method to those are the two types that are being used. But when I run, it is not going to be wrong with our code, the only one prints. First of all, let's create a new file right here. So we're just importing everything with this asterik. So assuming that if a particular condition is true, then Python should do this. Okay, so now we got office error, it says look available feature reference before assignment. in that folder, now we can create a new file and name it style dot CSS. So now that we have that was gonna spit for our serializer in a variable. So before we can use date, we need to import something named date time. So instead of feature one dot name, I'll say, feature that name, and feature the details, just the way we do in Python. And this is just gonna print welcome name. Later, I'm going to show you how to use the jungle model so that this data will be like from the database you have or something. So now after having these, we just use a comma to get some other details which we need. So after this block of code, Python knows that whatever is going to come below it is going to be the task in which we want that function to perform. Because this are the basics you need to know to get started really coding with Django. Let me use for example, like Instagram has come to explain. Alright, last arguments, and then keyword access keyword arguments, keyword x, just like this. So to print a number in Python is pretty easy. Actually, if we have the room details, we need to pass the room. Then once I run it, you'll see it gives me 100.9 34. Now we're gonna be talking about inheritance in Python. But before we can answer the admin panel, we need to create a super user. So I need to create a new folder in my root directory named template. So this particular line, let me just scroll across so you guys can see the lines. So right here, right here, we're gonna import our post serializer and our post model. Now right here, I can just simply say, new, don't say I was I CDs, I run this file, you see that it automatically says, so does how to use modules in Python. Our mission: to help people learn to code for free. A complete guide to web development in Python - Educative So we can see BK should be close to p gay. So why isn't a Post's method from the front end associated with quest those posts and then it's same message. So now we have this in an HTML tag, while I was gonna append it to the div tag that has this hashtag display ID. So he brings us to that same room, but with a different user this time around. And then we also get the type of the list. So let's do some more things that we need to know. Now this asterik is showing that we're passing various amounts like a tuple, a topple of which is like a list of values we're passing in here. I'm also going to explain that later in this course. And then the next thing want to download is PG admin. Now this is going to get everything from index number one to the end. So this is how to beauty of simple, very, very simple blog using Django. And I have to add this app I created which is posts, you have to add it there. So this URI lives equals to sudents serializer unreligious give it a data. So that's where we're gonna put our views.pi. So now once we just print my list, you'll see that I just give us this normal list. Yeah, it's updated data on then python manage.py. So we said if password equals to password to so even the user, that means right here if Okay, I know why this is happening. So right here, once I run these, you'll see that it gives me class lists, which means this variable is a list. I think now that we have a new message, so it says a guy's value. First of all, we don't have views imported. So is still one same template file, one same code, but different outputs relating to what has been passed, or query to form in the URL. But for this part, we're going to be working only with our so we're opening this file. I'm going to explain it using a popular site. Right now we're saying if the value percentage five, that means if the remainder is equals to zero, then obviously, that just means that value can be divided by five else value can not be divided by five. Because we specify the get function right here. I will call me on it refresh and says you are British. Now, he says, Your name not defined that because we've already deleted p one, there is nothing like that. So when I print these two now, if only three values. So when I live in blank like this in a default automatically, it uses a get method. So you can say Django admin start project, then online search engine, or whatever you want to name your. Want to get with the Mongo is located in that list, we're just going to say print list two dot index of mango. And then let's give h5 color of the rich. Without this page, even thinking of refreshing. So I can go into that folder I think is to F toots, then Chang, ti F. And then once I select that folder, obviously VS code is going to open that up. And the version that is going to install is the latest version. But now let's say we want to remove a particular value from the list, we can say this to dot remove, alleges remove bananas. Now let's say we have a total of three numbers. So now let's talk about models in Django. So that's how to build that basic Python program using getting user input. So you can see we have is admin user is authenticated, to dedicated or read only. So as you can see, it is more than one is going to bring a list does where we have to specify many equals true items is more than one. So this is going to migrate to the rest framework dot auth token into our database, which Kathy are talking or talking out. So we're checking if there is a POST method being like if this if this page is being rendered with a POST method, they want to get all these dummies something is being sent to this view. So what I just did know was, I said it should create a new user with these credentials. So instead of specifying something here, we just say delete the L Listen to. I know that won't Django three or so right now. I was I saved these, like, come on each refresh, you're gonna see now that I have a new database table new features. So now when the HTML, we can look through this list and get the attribute for each of these lists right here, so feature for us all these attributes, Victoria, all these attributes. Like that return statement shows the end of the function Call me an hour save print. So we'll say the name, we can say the name is john. So when we do something like this, or it means is the, we actually want to use a form or want to submit a detail something like this, we'll say data equals request or data. So we think the leads Yes, I'm sure with no me on each refresh, it's gone. So it tells us that okay, this person is talk. So you're gonna understand all these in a moment. Now that we're able to send in data from this form to our views to our templates, we can easily just get that data and then get the weather situation in that city. And that's gonna be basically all about topples the basics of tuples in Python, so we might be using this topples less often in Python, who mostly use lists. So that's basically how to just join different or add different functions together. Node.js vs Python for Backend Development - Section That's why Well, once you install your Python is good. And in that code, we're going to say something like input your name. That is still one that we want to print, I and then we just want to increment i by one So we can see i equals two, i plus one. And then in the installed apps, we want to add rest framework. So now modules are in just on your local laptop or your local PC like this, modules are hosted online. Right now we don't have any function new views named posts. So now that we are out of the server, what I want to do is to create a super user, so I'll say python manage.py. Now once I run these, you see now that I have five. Get started, freeCodeCamp is a donor-supported tax-exempt 501(c)(3) charity organization (United States Federal Tax Identification Number: 82-0779546). So this should be beneath the Get Started of this, let's crew all the way up. And we'll say, open and close curly braces, percentage sign and load static. Popular database management systems include: MySQL MongoDB Oracle PostgreSQL It is I personally, I there might be some developers will manipulate this fiber. Learn to become a modern Python developer by following the steps, skills, resources and guides listed in this roadmap. And then we'll just return the response of that particular data, which is awesome. So all these are linked, but not the way Django recognizes them. This comprehensive course is for absolute Move on to add water, what do we have? So what this is just saying is that you can allow anybody to use this particular API. So now instead of saying the same three times, we can just replace this team with name. So instead of room name, now that I have the name of the room, I can just do room.