You can think of owner and name as the usual github.com URL structure: github.com/owner/name. Since the code will get complicated soon, I want to move the HTTP request handlers to their own file: The /api/index endpoint lists all the repositories we have in the database. GOLANG REST API COM POSTGRESQL - PARTE 1 - IMPLEMENTAÇÃO DE ROTAS (MUX) Eric Lau. I’ll hook Go to an existing PostgreSQL database and serve a response based on the parameters passed to the request. pREST (PostgreSQL REST), simplify and accelerate development, instant, realtime, high-performance on any Postgres application, existing or new. "DBHOST environment variable required but not set", "DBPORT environment variable required but not set", "DBUSER environment variable required but not set", "DBPASS environment variable required but not set", "DBNAME environment variable required but not set", "github.com/flaviocopes/gitometer/api/handlers", // repository contains the details of a repository, // indexHandler calls `queryRepos()` and marshals the result as JSON, // queryRepos first fetches the repositories data from the db. So let’s dig into the example. From line 18 to 24 we are declaring values to use to connect with the database. Now let’s code our the handlers to each route. Linkedin: https://www.linkedin.com/in/iran-macedo-bezerra-neto/, #Create and run a container with postgres image, https://docs.docker.com/docker-for-mac/install/, https://docs.docker.com/docker-for-windows/install/, https://www.linkedin.com/in/iran-macedo-bezerra-neto/, Mutation Testing in PHP: quality measurement for code coverage, Creating A Simple Custom Animation With CSS For Beginners, Using Object-Oriented Principles in Test Code, The 5-Step Strategy You Can Use for Your Next Coding Interview, Part 3 — CAN Bus Reverse Engineering With SocketCAN. Generate a REST API from a PostgreSQL database with pagination, sorting, filtering, and JWT-based authentication. This is an API built with golang, jwt, gorm, postgresql, mysql - victorsteven/Go-JWT-Postgres-Mysql-Restful-API I can call the endpoint in the browser, and I’ll get: In addition to /api/index, the app responds to /api/repo/:owner/:name requests. If you don’t, that’s not a problem at all follow this tutorial and come back after that. GETHandler and POSTHandler are functions that we are going to create to handle the requests with the related route. Execute again the GET method and see our two records returned. You will know how to createREST endpoints within your project that can handle POST, GET, PUT andDELETEHTTP requests. By the end of this tutorial, you will know how to create your own REST-fulAPIs in Go that can handle all aspects of. Golang itself doesn’t natively deal with database communication, thus, a driver will be necessary to this. PostgreSQL installed. I ended up trying to install it via Homebrew. So this question is maybe not correctly formulated or it is impossible to achieve in Golang. We can run it with go build; ./api. Let’s understand what each line means. When you install Go, you also have to set up a $GOPATH on your computer which declares the workspace where you will create your Go projects. Take a look bellow and realize that we need to pass a new json value with this configuration in order to out POST method decode it into a new person type. Let’s add this information to our to code in order to connect the API to the database. In this scenario you might want to use struct tags (here is a detailed Go tags introduction): and the JSON will be changed to your needs: The basic API client is ready. Let’s checkout the complete main.go. Or maybe you have a standard of using snake_case. I then wrote my code in $HOME/go/src/github.com/user/rest-api accordi… // returns an error if the number of tokens are less or more than expected, "Bad format. Most of it is building the structs that will host the data, and filling them with database calls: And here is the output of calling /api/repo/dariubs/GoBooks: The weeks element contains a lot of data which we’ll use in our frontend: Generating capitalized properties in JSON does not look like “proper JSON”. Note: This was originally posted at martinheinz.dev. use PostgreSQL as the backing data store (chosen because it’s a popular relational DB) write the API implementation in Golang (a popular language for writing APIs). Searching SO for Generic REST API Golang gives 0 results. I'm working on a project that is as the title states. To this part I’ll assume that you know what is a docker container and you have it installed at your machine. Every developer should know the deeper nuances in these terms. r/golang: Ask questions and post articles about the Go programming language and related tools, events etc. To parse it into a json structure we’re going to import golang json library. Inside it ListenAndServer starts an HTTP server with a given address and handler which in this case is going to be localhost at port 8080. Also it’s important to do the json annotations to handle requests and response data. 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