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FusionAuth Go Client

Go Client Library

The Go client library allows you to integrate FusionAuth with your Go application.

Source Code:

  • https://github.com/FusionAuth/go-client

Installation

go get github.com/FusionAuth/go-client/pkg/fusionauth

Example Usage

package example

import (
    "encoding/json"
    "net/http"
    "net/url"
    "time"

    "github.com/FusionAuth/go-client/pkg/fusionauth"
)

const host = "http://localhost:9011"

var apiKey = "YOUR_FUSIONAUTH_API_KEY"
var httpClient = &http.Client{
	Timeout: time.Second * 10,
}

var baseURL, _ = url.Parse(host)

// Construct a new FusionAuth Client
var auth = fusionauth.NewClient(httpClient, baseURL, apiKey)

// Login logs in the user using the FusionAuth Go client library
func Login() http.HandlerFunc {
    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        // Read response body
        var credentials fusionauth.LoginRequest
        defer r.Body.Close()
        json.NewDecoder(r.Body).Decode(&credentials)
        // Use FusionAuth Go client to log in the user
        authResponse, errors, err := auth.Login(credentials)
        if err != nil {
            http.Error(w, err.Error(), http.StatusBadRequest)
            return
        }
        // Write the response from the FusionAuth client as JSON
        var responseJSON []byte
        if errors != nil {
            responseJSON, err = json.Marshal(errors)
        } else {
            responseJSON, err = json.Marshal(authResponse)
        }
        if err != nil {
            http.Error(w, err.Error(), http.StatusInternalServerError)
            return
        }
        w.Header().Set("Content-Type", "application/json")
        w.WriteHeader(http.StatusOK)
        w.Write(responseJSON)
    })
}

Related Posts

  • Building a CLI app with the Device Code grant and golang

Example apps

  • Golang jwt - JWT creation and decoding examples with the jwt-go library
  • Golang jwt api gateway - Protecting a microservice with a JWT middleware
  • Golang oauth - Login with the Authorization Code grant
  • Golang device grant - A golang client using the device grant

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