Build Web Application With Golang

Go is a great language for building web applications. But teaching yourself from blog posts and the standard library documentation can be a big time-sink and leave you with more questions than answers.

Because I'm interested in web application development, I used my free time to write this book as an open source version. It doesn't mean that I have a very good ability to build web applications; I would like to share what I've done with Go in building web applications.

For many developers, the idea of building a large system can be daunting. The 30 day development plan helps guide you through breaking the process of up into actionable steps that aren't overwhelming and gradually build upon one another leading to a complete web application. While it may take longer than 30 days to build some applictions, the process of breaking it into steps will be useful for any project.

Nginx is one of the most popular web servers in the world due to its lightweight resource usage and its reliability under load. Many of the largest and most highly trafficked sites on the internet depend on Nginx to serve their content. In deployment, Nginx is often used as a load balancer or a reverse proxy to increase security and make the application more robust. In conjunction with a Go web back-end, Nginx can serve up a powerful and fast web application.

In this step, you will build a sample Go web application that displays Hello World at your_domain and greets the user at your_domain/greet/. If you would like to learn more about the basics of programming in Go, check out our How To Write Your First Program in Go article.

You have now set up the Nginx reverse proxy to expose your application at your domain name, and secured your Go web application with SSL/TLS. In the next step, you will be testing your application over a secure connection.

In this tutorial, you created a simple web application with Go using its standard libraries, set up a reverse proxy using Nginx, and used a SSL certificate on your domain to secure your app. To learn more about Go, check their official documentation. Also, you can look at our series How To Code in Go to learn more about programming in this efficient language.

Jeremy Morgan is a tech blogger, speaker and author. He has been a developer for nearly two decades and has worked with a variety of companies from the Fortune 100 to shoestring startups.Jeremy loves to teach and learn, writing here on and on his Tech Blog as well as building Pluralsight Courses.

In this tutorial, we will explore how to use a PlanetScale MySQL database with Golang to build a product listing application. We will start by setting up a PlanetScale database. Then, we will dive into the code and learn how to perform CRUD (Create, Read, Update, Delete) operations using Golang and MySQL.

Copy these details and keep them handy, as we will need them when we start building our application. For security, this page is only displayed once, and if you lose your credentials, you will need to regenerate a new set.

Gin is a high-performance micro-framework. It delivers a very minimalistic framework that carries with it only the most essential features, libraries, and functionalities needed to build web applications and microservices. It makes it simple to build a request handling pipeline from modular, reusable pieces. It does this by allowing you to write middleware that can be plugged into one or more request handlers or groups of request handlers.

The src directory contains the core Vue application. The entry point for the application is in src/main.js which replaces the in the HTML page with the content. The file src/App.vue contains the top-level Vue component. There is one component src/components/HelloWorld.vue which can be deleted as it is not required.

This will build the application and start listening on port 8080 by default. You can access the page by pointing a web browser at :8080. If you are curious, the port number can be changed by setting the environment variable PORT to another value.

In the export the methods object exports the getList() function as a JavaScript function with the same name which is visible to the application. The mounted entry defines a function that is called when the page has loaded. It calls getList() to get the list of items.

The Vue.js JavaScript framework makes it easy to build web front ends that generate dynamic content. The Vue client can create the basic directory structure and the files required for a Vue application. The files are validated for correct syntax which helps avoid hard to diagnose JavaScript errors. Vue provides a server that can be used to test development code. Building the code in production mode creates static content that can be delivered by any web server.

Copper still relies on the Go standard library to maintain the traditional Go experience while allowing you build frontend apps along with your backend and ship everything in a single binary. It has support for building full-stack web apps with React and Tailwind in the frontend, and it also supports building APIs that give more flexiblity to work with other frontend frameworks like Vue and Svelte.

We will be building a full-stack web application that allows us to perform CRUD operations on our SQLite database. Basically, we will be building a to-do application. Here is how the finished app looks:

The Go programming language, often referred to as \"golang\", has gained a lot of well-deserved traction in the DevOps community. Many of the most popular tools such as Docker, Kubernetes, and Terraform are written in Go, but it can also be a great choice for building web applications and APIs.

We've written our go web application, now let's package it up as a Docker image. We could create it as a Heroku buildpack, but one of the nice features of Go is that you can distribute your software as a single binary file. This is an area where Go really shines, and using a Docker-based Heroku deployment lets us take advantage of that. Also, this technique isn't limited to Go applications: You can use Docker-based deployment to Heroku for projects in any language. So, it's a good technique to understand.

What we want to do is use this Dockerfile to build our helloworld binary to run on alpine linux, then copy the compiled binary into an alpine base image, without all the extra golang tools.

You should see Heroku building the image from your Dockerfile, and pushing it to the Heroku Docker registry. Once the command completes, you can view the deployed application in your browser by running:

A quick example - most web applications will have some notion of a user who signs up and interacts with the web application in some way. In an MVC application we might create a type User struct {...} in the models package that represents a user stored in our database. We might then create some code to help us validate that a user is valid and some additional code to help us create, update, and query for users in our database.

MVC is also appealing because it is familiar. Change can often be confusing, so when coming to Go from Django, Rails, ASP.NET, and countless other languages/frameworks that use MVC it feels comfortable to dive into something familiar. We already understand how that code is organized, so doing something similar with our Go application allows us to make one less decision, and decision fatigue is a real thing.

The first key to using MVC with Go is to remember that not everything has to be a model, view, or controller. Yes, these categorizations are great starting points and will help minimize your decision making, but many parts of your application will not fall into any of these categories and that is okay.

The reasons are basically the same why we avoid a global database connection; it can lead to all sorts of hidden complexity. I write a bit more about this in my article Subtle issues with ORMs and how to avoid them, but the main takeaway is that when this is possible, a SQL query can literally be triggered from anywhere in your application, not just where you inject the OrderStore, and as a result it can make it very hard to manage your application.

The main function is the entry point of your executable program, so itstarts the application. It begins with a call to the http.HandleFuncfunction which tells the http package to handle all requests to the webroot (\"/\") with the indexHandler function.

Is it possible to run flutter web build using golang server Golang has facility to serve html file and flutter web gives output as index.html and js files.if it is possible then how golang code should look like

If you are writing any form of web application, then you are most likelyinterfacing with 1 or more REST APIs in order to populate the dynamicparts of your application and to perform tasks such as updating or deletingdata within a database.

Golang is used on the server-side to create a backend for the web application. Therefore we can use it to create web-based APIs. So let us see how we can build a REST API application using Golang and PostgreSQL databases.

TL;DR: In this series, you will learn how to build modern applications with Golang and Angular. In the first article, you will build a secure backend API with Golang that will support a to-do list application. Then, in the second part, you will use Angular to develop the frontend of the to-do list app. To facilitate the identity management, you will use Auth0 both in your backend API and in your Angular app to authenticate users. If needed, you can find the final code developed throughout this article in this GitHub repository.

Despite all of this, I still think that Angular is an excellent frontend framework for web applications. I love that it leverages the use of TypeScript and, thereby standardizing the structure of code and as mentioned earlier, I love the angular-cli toolbox (which comes with all the tools I need and expect out of the box). 781b155fdc