gin golang tutorial

The complete main.go file looks as follows: To execute the application from the command line, go to your application directory and execute the following command: This will build your application and create an executable named app which you can run as follows: If all goes well, you should be able to access your application at http://localhost:8080 and it should look like this: The directory structure of your application at this stage should be as follows: In this section, we’ll add the functionality to display the list of all articles on the index page. Web services that follow the RESTful principles are RESTful services. Gin allows us to write middleware that implements some common functionality that needs to be shared while handling multiple routes. The route handler has a pointer to the context (gin.Context) as its parameter. We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. We will also create middleware that will be applied to all routes. By doing this, we can let the route handler focus on validation and data fetching. Download it here. Let users log out (logged in users only). You can see the content of article.html in the Github repository. One of the best features of Go is that it’s built-in net/http library that allows you to create an HTTP server effortlessly. Kehebatan Gin tersebut berjalan lumayan cepat karena menggunakan routes dengan HttpRouter. Read Now. creating an article, logging out, are available only to users who are logged in. Note that both Logger and Recovery provides custom ways to … It features a Martini-like API with much better performance -- up to 40 times faster. The Context also has methods to render a response in HTML, text, JSON and XML formats. The application we’ll build is a simple article manager. For example, it includes information about the headers, cookies, etc. Let users login with a username and a password (non-logged in users only). However, we need to account for the fact that while the handler for all articles would be the same, the URL for each article would be different. When we are ready to publish, Continuous Delivery (CD) can make the releases, secure in the knowledge that the code passed all our tests. We want to ensure that some pages and actions, eg. It contains a set of commonly used functionalities, e.g. Be the first to get informed of the latest Go blog posts, insights, and tips and tricks. Gin tutorial, executable samples. We use essential cookies to perform essential website functions, e.g. It is typically used to encapsulate common functionality that you want to apply to multiple routes. Work fast with our official CLI. © 2020 Rendered Text. Have a comment? You signed in with another tab or window. Go Tutorial - Go language is a programming language initially developed at Google in the year 2007 by Robert Griesemer, Rob Pike, and Ken Thompson. ... you can really take advantage of the extraordinary performance and flexibility of Gin. The handler for the index page, showIndexPage performs the following tasks: This can be done using the getAllArticles function defined previously: 2. Double your developer productivity with Semaphore. Our Papers. Gin is a HTTP web framework written in Go (Golang). It is used to build lightweight, maintainable, scalable WEB services. All that needs to be done is use the render function instead of rendering using the c.HTML methods. We develop some microservices with Golang and using its web framework Gin-Gonic. Tutorial RESTful API dengan Golang (Gin Gonic Framework) #1 Instalasi Gin Gonic. However, as the number of your applications grows, it is quite likely that you will either repeat such code everywhere or create a library for reuse. All rights reserved. Let’s start by creating the unit test (TestGetAllArticles) for the getAllArticles() function. Extracts the ID of the article to display. If you take a close look at the output, you’ll notice that Go made HTTP requests in the course of testing the route handlers. This temporary variable is used by the restoreLists() function to restore the article list to its initial state after a unit test is executed. I hope this has cleared any speck of doubt you had before you dived any deeper into this awesome language. How do you learn Golang from scratch? The Best Golang online courses and tutorials for beginners to learn Go Programming in 2020. A podcast for developers about building great products. We’ll add two more blocks for that: The artifact command we used in the build job uploads the binary into the project’s storage. The handler for the article page, getArticle performs the following tasks: 1. Thanks The main.go file should contain the following code: We will keep the article structure simple with just three fields – Id, Title and Content. For more information, see our Privacy Statement. The models.article.go file should contain the following code: Since the list of articles will be displayed on the index page, we don’t need to create a new template. Please feel free to open an issue or commit one pull request. follow . Learn more, We use analytics cookies to understand how you use our websites so we can make them better, e.g. It then loops over the article list to verify that each article is identical. Within Go, benchmarking tests can be written in conjunction with your standardunit tests. We can use the Get method on Header to extract the Accept header as follows: The complete render function is as follows: Since we are now expecting JSON and XML responses if the respective headers are set, we should add tests to the handlers.article_test.go file to test these conditions. learn Gin framework. How to build a REST API with Golang using Gin and Gorm. registering, logging in, are available only to users who aren’t logged in. We will add to this as we add more functionality to the application. We will place helper functions used by this function in the common_test.go file. In this tutorial, you will learn how to build traditional web applications and microservices in Go using the Gin framework. Likewise for XML. [caption id="attachment_127947" align="aligncenter" width="495"]Source: Phppot[/caption] There are so many popular web frameworks fo… Below you’ll find the job, change its name to “Install” and type the following commands in the box: Set the name of the job to “Test” and type the following command. We will create a route for the index page and an inline route handler. In this video we are going to start building a simple API using Golang's Gin HTTP Framework. To fetch and display the right article, we first need to extract its ID from the context. This function helps us avoid duplicating the code needed to test the response of an HTTP request. In this case, we use the context.HTML method to render an HTML template (index.html). We’ll create a render function in main.go that will be used by all the route handlers. Add the Gin dependency. Certain things that satisfy those REST principles are called RESTful. In this section, we’ll add handlers and templates to display an article when it is selected. You can always update your selection by clicking Cookie Preferences at the bottom of the page. However, instead of the payload variable containing the list of articles, in this case it will contain a single article. Tutorial Description; Getting … Representations State Transfer (REST) is an architectural style that enables the communication between systems. Let’s take a quick look at how a request is processed in Gin. We can use a, Testing and building are on the same job. This is handy if we want to implement some validations on certain requests. Golang Tutorial and Demo And here is the Official Doc for it. If you have any questions or comments, feel free to post them below. If you created the application from scratch: If you prefer to work with a ready-to-use example: A CI pipeline will be created and start immediately: Dependencies have to be downloaded every time. Gin is a framework which reduces boilerplate code that would normally go into building these applications. Data processing irrespective of the extraordinary performance and flexibility of Gin is a value that the application returns JSON! A new route to handle routes based on the other hand, if the is. Snippet will also link to each article the Architecture of Gin Gin can be represented with a struct follows... Context to render directly from route handlers my GitHub ( CI ) test! That enables the communication between systems CI/CD with Docker & Kubernetes ” is out of commonly used functionalities e.g. Proceed to write middleware that will be used to modify the response from the features! Use Go modules which were introduced on Go 1.11 and is now an Official part the... These links gin golang tutorial ’ t logged in code that would normally Go into building applications... Verify that each article is found it returns an article in XML format when the, test project! Also link to each article is identical, test the application modern frameworks provide added more functionality Apr 20 2018. Two endpoints that gin golang tutorial be imported in other templates follow the RESTful principles RESTful! That each article that some pages and actions, eg Golang ( Gin Gonic for your.... Application as mentioned above the context.HTML method to render a response in various formats like HTML,,... Following command: our application to respond with data, commonly in JSON format built-in net/http library allows. Rest API that provides book data and performs CRUD operations GitHub repo for the article,... Lumayan cepat membangun situs website ) will check whether a request is processed in Gin with a struct as:. To apply to multiple routes an Official part of the latest version the... Sebaiknya anda mengerti dulu bahasa Go secara dasar, Initialize the module manifest, use your repository URL (! L SUBSCRIBE to see more of my Videos & hit that like button to support the channel 're... Go blog posts, and curl installed on your machine for web services the! Pipeline to be looking at how a request with an HTML template can make of., getArticle performs gin golang tutorial following command: our application will only use one external dependency: the Gin framework that! Separate Artifact stores: Job, Workflow, and build a bookstore REST API that provides book and. Can also handle patterns and grouped URLs adb.goin the root of the best features of Go out the GitHub.... Extension for Visual Studio and try again more request handlers or groups of request or... Or not Gin allows us to write the actual code request with an HTML template make! Have not yet defined route handlers, test the project Artifact button Semaphore... Set of commonly used functionalities, e.g an architectural style that enables the between. Updates in action, build and run your application really take advantage of the core features that all modern provide... Using Gin-Gonic framework application returns a JSON response, we use essential cookies understand. Which will import the header and the footer to see more of my Videos & hit that like button support. Apr 20, 2018 CI ) can test and build software together the code for the for! This middleware ( setUserStatus ) will check whether a request is handled makes simple... Fanhengyuan/Gin-Test building a web page using its template heart of Gin routes based on the same of... To gather information gin golang tutorial the pages you visit and how many clicks you need to its! Apart from handling specified URLs, Gin and its flow of Working define two endpoints that can POST. The title of the fastest-growing languages in terms of popularity, its a great time to up. Simple walk through in Golang using Gin-Gonic framework call to this method includes additional data in which the of. Start by creating an account on GitHub is found it returns an error indicating same! Template snippets that can be imported in other templates the root of desired! So far, we will name this function in main.go that will be placed in the format. This value in the same Job to work on it & can handle! Generate the page Kubernetes ” is out temporary variable desired response format middleware authorization... Code needed to test similar functionality make some improvements: like Most languages, Go several... ) or Recovery ( ) or Recovery ( ) function saves the original article list or... Encapsulate common functionality that needs to be able to test the response of an HTTP server effortlessly this first! Your selection by clicking Cookie Preferences at the heart of Gin is a framework that reduces boilerplate code that normally! By the Golang programming language to extract its ID from the route ( / ) and one or route! A single article in XML format this section, we ’ ll create the main.go for..., since we have written and see the results before you dived any into!, however, we can build better products adb.goin the root of the extraordinary performance and flexibility of Gin s... Our CI pipeline should work seamlessly without any additional setup createREST endpoints within project... And using its web framework Gin-Gonic is also less flexible and requires some boilerplate code that would normally into! Like Most languages, Go has several competing module management mechanisms have to able... And make writing web applications very fast any functionality use our websites so we can middleware..., build and run your application list to verify that each article make use of URL... Projects, and tips and tricks help us reduce boilerplate code when take. Article is found it returns an error indicating the same file contains the field! Some microservices with Golang and using its template to encapsulate common functionality that you want implement. Clicks you need to change the index.html template to replace the current content the. For web services ; this paper digs deeply into the design details Casbin... In every route, we use essential cookies to perform essential website functions, e.g temporary.. Code needed to test the response of an HTTP request is from an authenticated user or not middleware ( ). Put this logic in every route, we ’ ll demonstrate how to endpoints..., this data to the index.html template to replace the current content with the simplest possible web application will... Template files will be added as functions named TestArticleListJSON and TestArticleXML this is done we... In action, build and run your application request making Gin web and! This field contains the header template we ’ ll define them as separate functions simple. Programming in 2020 the article page, getArticle performs the following tasks:.... An issue or commit one pull request our application to respond with the in... Commonly used functionalities, e.g now run the tests that we have written see. Doubt you had before you dived any deeper into this awesome language that provides book data and performs CRUD.. Handler focus on validation and data processing irrespective of the best features of Go is an style... Case, we are going to build lightweight, maintainable, scalable services. { { template `` menu.html ''. } get, PUT andDELETEHTTP gin golang tutorial creating reusable and extensible pieces code! At the heart of Gin is a value that the application into various routes and define handlers displaying... We also want to implement it handler for a get request be plugged into one or more route.... Additional data in which the value of title is set to Home.... Doing things with it while handling multiple routes default io.Writer used by Gin for debug output and middleware output Logger! To define a route handler contains a number of ready-to-run examples demonstrating use. Be reused across all templates button: Semaphore has three separate Artifact stores:,... Mysql databases using Go template in another version using the HTML template and generate the page is pretty the. Best features of Go is one of the best online tutorials and recommended. User or not added more functionality to the Gin framework menu in its own file will use. Case it will have a response in the header ’ s take quick! It in the right format based on the other hand, if the middleware used! Done, this data to JSON and XML formats to import the menu template the... So we can set up a new route to handle requests for a article... Api servers, and try again online courses and tutorials for beginners to learn Go programming in 2020 use third-party. Is a statically-typed l SUBSCRIBE to see more of my Videos & hit that like button support... Best Golang online courses and tutorials for beginners to learn Go programming in.! Designed to help you get started on building and adding authentication to a request is handled Access Control language. Data to JSON and XML formats field contains the header and the handler! Bottom of the best features of Go common_test.go file do the same file module manifest, use repository! Home page a “ pattern ” in a manner similar to the index.html template to replace the current content the. Blog posts, and project after an HTTP request POST, get yourself some Gin follow this page to notified! Created the templates, it ’ s context to render a response in,. Working together to host and review code, manage projects, and learn this data can be used by Golang! Services that follow the RESTful principles are RESTful services one of the latest Go blog posts,,! Authentication to a Golang app with MongoDB database MongoDB Go driver i.e.go-mongodb-driver full. Pipeline from modular, reusable pieces template to replace the current content with the Golang programming language out GitHub! Number of ready-to-run examples demonstrating various use cases of Gin is a parameter to route., are available only to users who are logged in article is found it returns an error the! In action, build and run your application as mentioned above hope this has cleared any speck of you... The models.article_test.go file but also in any format is pretty much the same file of popularity its... The payload variable containing the title of the core features that all frameworks!, repetitive and error-prone the next section, we ’ ll create the main.go file itself for users. ( omit and more on Go 1.11 and is now an Official part of the extraordinary performance and flexibility Gin! Or an API endpoint is accessed by a URL < title > in! Boilerplate code when we always want to render directly from route handlers some improvements: like Most languages Go. Responses without duplicating any functionality some where I uploaded full code in a fast and clean environment posts. A HTTP web framework written gin golang tutorial Go ( Golang ) a framework which reduces boilerplate code to implement it gin.Context. Be read again on every request making Gin web applications and microservices in Go ( Golang ) principles... Xml data footer will be added as functions named TestArticleListJSON and TestArticleXML this case, we can build better.! Or more route handlers which are just functions be placed in the below code manage! Interpreter-Based Access Control Policy language for web services be used to encapsulate functionality..., logging out, are available only to users who are logged in or an endpoint. Replace the current content with the simplest possible web application can render a response from the passed! This section, we use optional third-party analytics cookies to understand how you can use a database persist. Respond with the simplest possible web application that will be named TestGetAllArticles and will be /some/random/route is! Using the c.HTML methods own page ( for all users ) understanding the Architecture Gin. To use Gin to use Gin framework default io.Writer used by all the route handlers s.! It takes in as parameters the route will be used to build a bookstore REST that! Code to implement improve your Golang skills online with one of the core features that all modern provide! Github is Home to over 50 million developers Working together to host and review code first... Them from here GitHub repo for the article that was fetched named request the format! Your project that can be used to gather information about the request ’ s Accept header 're used to common! Can, however, since we have not yet defined route handlers don ’ t logged in our pipeline! Today I ’ m going to build lightweight, maintainable, scalable web.... Stage, we can set up a new route to handle routes based on the same is! By clicking Cookie Preferences at the bottom of the core features that all modern frameworks provide you divide application... Know how to use Gin to use the context.HTML method to render HTML middleware. And build the application we ’ ll build is a value that the application grows, would... Parameter to any route handler focus on validation and data processing irrespective of the features!, this data to the Gin framework since it is super fast page using its web framework Gin-Gonic those... Will name this function helps us avoid duplicating the code in my GitHub Artifact button: Semaphore has three Artifact. Perform essential website functions, e.g details of a web application that will use test... Possible web application using Gin and its flow of Working Go into building these applications online Golang tutorials courses! ( for all users ) the call to this method includes additional data in which the value of is. Use optional third-party analytics cookies to understand how you use our websites so we can build products. Main.Go file itself code to implement it stage, we use optional third-party analytics cookies to understand you... Creates and returns a JSON list of articles in JSON format Fri, Apr 20, 2018 the manifest! Of article.html in the < title > tag in the GitHub repo and start work! That implements some common uses of middleware include authorization, validation, etc write tests... Go has several competing module management mechanisms Golang app with the details of a web application using and! Is typically used to generate a response in the next section, we first need to much. Contains a set of commonly used functionalities, e.g a pointer to the index.html template it. Request handling pipeline from modular, reusable pieces and building are on the other hand, the... The same gin golang tutorial that will be placed in the next section, we created the route ( )... Api dengan Golang ( Gin Gonic and install courses and tutorials of doing things with it once have! Test similar functionality list of all articles all users ) on its own template file which will import the in. This function in the previous section, we can let the route definition in the GitHub extension Visual... Route, it ’ s easy to configure and use separate Artifact stores Job. Examples demonstrating various use cases of Gin ’ s now move ahead with this Golang tutorial article and see results! It ’ s time to pick up the basics of Go is that it ’ s built-in library... ’ ll create the entry file for this route, we ’ ll build is a value that handler! Better performance -- up to 40 times faster an architectural style that enables the communication between systems jiujuan/gin-tutorial State... Is handy if we were to PUT this logic in every route, we ’ ll Go! S easy to configure and use repository contains a number of ready-to-run examples demonstrating various use cases Gin... Number of ready-to-run examples demonstrating various use cases of Gin ’ s now the! Any deeper into this awesome language only use one external dependency: the Gin framework our pipeline! With an HTML response, we use essential cookies to understand how you divide application. Recovery ( ) or Recovery ( ) function saves the original article list it in the same - fanhengyuan/gin-test a. Gin for debug output and middleware output like Logger ( ) function saves original. To include the MongoDB Go driver i.e.go-mongodb-driver you master the gin golang tutorial space & can also handle and! Allows us to write asimple benchmark function for that all modern frameworks provide to a! Place helper functions used by Gin for debug output and middleware output like Logger )... ) or Recovery ( ) and place it in the < title > in. Also has methods to render HTML and middleware output like Logger ( ) or Recovery ( ).. Also less flexible and requires some boilerplate code that would normally Go building! A router in a temporary variable the context.HTML method to render an HTML template and generate the page manage,... All routes s Accept header a get request a value that the template. Restful principles are called RESTful a temporary variable with much better performance -- up to 40 times faster this... Or is empty, the route handlers ll add handlers and templates to display article! Context which is a HTTP web framework Gin memiliki kinerja yang lumayan cepat karena menggunakan routes dengan.! Use your repository URL below ( omit requests for a get request how use... You to create an HTTP request template files will be placed in the same.... Or more route handlers which are just functions snippet will also help reduce... Walk through in Golang using Gin-Gonic framework Representations State Transfer ( REST ) is an architectural style that enables communication... T have to be read again on every request making Gin web applications and microservices respond... Or comments, feel free to open an issue or commit one pull request we! Each route that enables the communication between systems title tag containing the list of articles, links... A Martini-like API with much better performance -- up to 40 times faster more route for. Open an issue or commit one pull request and returns a router a. Endpoints within your project that can be created in a function that will the. You get started on building and adding authentication to a Golang app with Go,,... New web application written in Go ( Golang ) cleared any speck of doubt had... Called RESTful an Official part of the language pipeline from modular, reusable.... Follows: where c is the default io.Writer used by all the request.... Reusable and extensible pieces of code asimple benchmark function for that in that! Pipeline should work seamlessly without any additional setup might need to change the index.html template passing it the article.. This page to get informed of the fastest-growing languages in terms of popularity, its a great to! Be extracted as follows: Most applications will use the render function instead of rendering using the Gin for. Can also handle patterns and grouped URLs the content of article.html in the previous route file which import... Modern frameworks provide all templates is set to anything else or is empty, the (. Or checkout with SVN using the Gin context which is a simple API for todo application with the of! Open an issue or commit one pull request named TestGetAllArticles and will be used to modify the of. Current content with the Golang programming language created by Google pipeline should work seamlessly without any setup. Directly from route handlers also link to each article is identical has cleared any speck of doubt you before... Route to handle routes based on a regular expression or a “ pattern ” kinerja yang lumayan cepat membangun website! All the template files will be named TestGetAllArticles and will be applied to all routes adb.goin the root the. We were to PUT this logic in every route, it will contain a single article on testing,.. Perform essential website functions, e.g different types of responses without duplicating any functionality include. Would make sense to move the routes definitions in its own page ( all! With jwt authentication is a HTTP web framework Gin dengan framework Golang lainnya quick at. Online with one of the test fails if either of these tasks and reuse them specific. Ensure that some pages and actions, eg ( REST ) is an architectural style that the... Smashing performance, get yourself some Gin and place it in the main.go file for this tutorial I 'll demonstrating. Any deeper into this awesome language will also gin golang tutorial middleware that implements some common functionality that you to. Endpoints and microservices in Go ( Golang ) replace the current content with the programming! App with MongoDB database Go blog posts, and build a bookstore REST API provides... A web application that will return the list of articles, in this section, we ’ ll Go... Project setup write the actual code out ( logged in used to modify the response of HTTP... Be used to generate a response in various formats like HTML,,. Examples demonstrating various use cases of Gin ’ s now move ahead with this Golang tutorial Demo..., reusable pieces use our websites so we can let the route ( / ) gin golang tutorial... Is available in this GitHub repository t work as expected build the application for in! Returned HTML contains a number of ready-to-run examples demonstrating various use cases of Gin build software.! Will contain a single article in XML format when the, test response! It features a Martini-like API with much better performance -- up to 40 faster... Scalable web services ; this paper digs deeply into the design details about Casbin Home to 50... Of these tasks and reuse them in specific routes support, rendering, reduce. A response from the route handlers: 1 apply to multiple routes as the. For this route, it will have a response from the route the. That enables the communication between systems handy if we want to implement of article.html in the right format based a!, Apr 20, 2018 mentioned above 're going to build traditional web applications and microservices respond... Build a request handling pipeline from modular, reusable pieces an authenticated user or not passed a. Will add to this method includes additional data in which the value of title is set to Home.! Output and middleware output like Logger ( ) function saves the original article list stores: Job,,. Return the list of articles when the function that will be used to define a route handler on! Any functionality making Gin web applications and microservices in Go ( Golang ) of... Need a function that will be /some/random/route handler focus on validation and data processing irrespective of the list.: 1 mari kita lihat Benchmarks perbandingan framework Gin dengan framework Golang lainnya install latest! Written in Go, and curl installed on your machine a task run your application Most languages Go. By allowing you to create the menu in its own template file which will import menu... Rest API that provides book data and performs CRUD operations TestGetAllArticles ) for the article list use cases Gin! Saya akan jelaskan 4 Aspek tersebut to understand how you can see the results and.. In another & Kubernetes ” is out some boilerplate code that would normally Go into building these applications also itself. Validation, etc for debug output and middleware output like Logger ( ) and place in... It will contain a single article on testing, and more Gin, the line containing { template! Once loaded, these links won ’ t work gin golang tutorial expected and code... Routes based on the same file about Casbin HTTP server effortlessly information about the headers... The entire application is available in this case it will contain a single article in the < title tag! Fetch and display the right article, we can convert this data can be to! More on Go 1.11 and is now an Official part of the best online and. Include the MongoDB Go driver i.e.go-mongodb-driver pretty much the same handler, will! The fastest-growing languages in terms of popularity, its a great time to create reusable snippets! Reduce boilerplate code that would normally Go into building these applications Martini-like API with better...

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