#GOLANG HTTP CLIENT EXAMPLE HOW TO#
#GOLANG HTTP CLIENT EXAMPLE MOD#
#GOLANG HTTP CLIENT EXAMPLE CODE#

Unfortunately, not a lot of people know about httputil, and it was a long Structures that expose the relevant fields and functions for this purpose. Generally need to read query variables from GET requests, or Form variablesįrom POST requests, and in some cases read the POST body in order to saveĪ file or get a JSON payload. Most RESTful HTTP API requests don’t have to deal with many things. There are a few edge cases, where aĭeeper understanding of the http and related packages is very welcome. Servers and clients very straightforward.

The net/http package, which provides structures that make development of HTTP

#GOLANG HTTP CLIENT EXAMPLE CODE#

Run the main.go file, I use the dot argument which mean 'run code in the current directory'.Įdsels-mbp:clientRestApi edsellandicho$ go run main.Go has a very strong standard library, and one of the most used parts of it is It consists of how you connect to REST API, set the header and data then process the response back from the REST API provider. The rest of the functions are the CRUD function implementation which is self explanatory (getItems, getItemByID, postItem, updateItemByID and deleteItemByID). Main() function - entry point when you run the program, here we call the different methods to execute the CRUD functionality. This is a data structure that we will use to convert from readable textual representation into byte slice using json Marshall and vice versa using json unmarshall. Structure declaration and slice data type - located just below the package main. Net/http: package for http client request. Io/ioutil: package to read the whole file at once in byte slice.

Allows to format basic strings or any values and and print them. Import - contains the go packages you will need to implement REST API.īytes :package implements functions for the manipulation of bytes slices.Įncoding/json: package to convert data to and from byte level and textual representation like json.įmt: package is for input output functions. That's a lot of code, right? Here's a brief explanation: rw-r-r- 1 edsellandicho staff 0 Mar 3 13:51 main.goĮdsels-mbp:clientRestApi edsellandicho$ vi main.goĬopy the source code below and paste to main.go then save. Below, I'm using VI editor but feel free to use any text or code editor.Ĭreate 'main.go' under 'restWebServiceUsingGinFramework' directory.Įdsels-mbp:examples edsellandicho$ cd clientRestApi/Įdsels-mbp:clientRestApi edsellandicho$ touch main.goĮdsels-mbp:clientRestApi edsellandicho$ ls -lrt Create go file source codes (your program)Ĭreate your program by adding a new go file under the directory that you created. Go: creating new go.mod: module /clientrestapiĮdsels-mbp:clientRestApi edsellandicho$ cat go.mod

#GOLANG HTTP CLIENT EXAMPLE MOD#

The go.mod file will only contain the module name and the GO version number that your code supports.Įdsels-mbp:clientRestApi edsellandicho$ go mod init /clientrestapi Generate a go.mod file which is a GO code dependencies for every sub-directory that you created. For this example, I created a 'clientRestApi'.Įdsels-mbp:examples edsellandicho$ mkdir clientRestApi Step 2: Generate a GO module (go.mod file) The code is really very straightforward :-)Ĭreate a working workspace or a folder in any directory that you want. The goal is to create a client for RESTful API (CRUD functionality).Īssumption: You are familiar with basic HTTP flow and have experience in programming. Im using GOLANG version 1.20 for this example.

#GOLANG HTTP CLIENT EXAMPLE HOW TO#

How to consume a RESTful API in GOLANG or GO using net http package | How to create a RESTful API client in GOLANG or GO

Golang http client example