const { AuthManager } = require("magister-openid");
const axios = require("axios");

const options = {
    tenant: "school.magister.net",
    username: "<username>",
    password: "<password>"
}

const manager = new AuthManager(options.tenant);

axios("https://argo-web.vercel.app/api/authCode").then(({ data: authCode }) => {
    manager.login(options.username, options.password, authCode).then(tokens => {
        console.log("ACCESSTOKEN=" + tokens.access_token);
        console.log("REFRESHTOKEN=" + tokens.refresh_token);
        console.log("EXPIRES=" + tokens.expires_at);
        console.log("TENANT=" + options.tenant);
    });
});

Note: this library is not able to get the access and refresh token by itself (yet), however it is able to refresh the access token with the refresh token.

Use the library

package main

import (
	"fmt"
	"github.com/J0eppp/magistergo"
	"github.com/joho/godotenv"
	"os"
	"strconv"
)

func main() {
	// Get data from .env file
	godotenv.Load(".env")
	accessToken := os.Getenv("ACCESSTOKEN")
	refreshToken := os.Getenv("REFRESHTOKEN")
	accessTokenExpires, _ := strconv.ParseInt(os.Getenv("EXPIRES"), 10, 64)
	tenant := os.Getenv("TENANT")

	// Create a Magister instance, give it all the data it needs
	magister, err := magistergo.NewMagister(accessToken, refreshToken, accessTokenExpires, tenant)
	if err != nil {
		fmt.Println(err)
		return
	}

	_, err = magister.GetAppointments()
	if err != nil {
		fmt.Println(err)
		return
	}

	// Get today's appointments
	_, err = magister.GetAppointments("2021-05-25", "2021-05-25")
	if err != nil {
		fmt.Println(err)
		return
	}

	// Get messages
	messages, err := magister.GetMessages(7)
	if err != nil {
		fmt.Println(err)
		return
	}

	for _, message := range messages {
		fmt.Printf("%+v\n", message)
	}

	// Get the content of the last received message
	msgID := messages[0].ID
	message, err := magister.GetMessage(msgID)
	if err != nil {
		fmt.Println(err)
		return
	}

	fmt.Println(message.Content)
}