Xero OAuth2 .Net SDK

This code is generated from the openapi-generator based on Xero OpenAPI 3.0 Specification

Current release of SDK with OAuth2 support

Version Xero-NetStandard SDK only supports OAuth2 authentication and the following API sets.

• accounting
• fixed asset

Coming soon

• identity
• bank feeds
• projects
• payroll
• files
• xero hq

How to handle OAuth 2.0 authentication & authorization?

We have built Xero OAuth 2.0 Client. Check out Xero.NetStandard.OAuth2Client

To learn more about how our OAuth 2.0 flow works and how to use the OAuth 2.0 client, check out our Xero developer blog post: Up and running with .NET and Xero OAuth 2.0

Looking for previous SDK with oAuth 1.0a support?

Codebase, samples and setup instructions located in oauth1 branch.

Getting Started

Sample apps

Looking for sample apps for this SDK? A dotnet core 3.1 MVC one is available here. A .NET Framework 4.6.1 one is availble here.

Create a Xero App

Follow these steps to create your Xero app

• Create a free Xero user account (if you don't have one)
• Use this URL for beta access to oAuth2 https://developer.xero.com/myapps
• Click "New app" link
• Enter your App name, company url, privacy policy url, and redirect URI (this is your callback url - localhost, etc)
• Agree to terms and condition and click "Create App".
• Click "Generate a secret" button.
• Copy your client id and client secret and save for use later.
• Click the "Save" button. You secret is now hidden.

Installation

Use Nuget to download the package

	dotnet add package Xero.NetStandard.OAuth2
	dotnet add package Xero.NetStandard.OAuth2Client

or using the Package Manager Console inside Visual Studio

	Install-Package Xero.NetStandard.OAuth2
	Install-Package Xero.NetStandard.OAuth2Client

or you can download the source code from https://github.com/XeroAPI/Xero-NetStandard and compile it by yourself.

To get started there are a few main classes.

• The AccountingApi class
• XeroOAuth2

The AccountingApi class is not coupled to the OAuth2 class, so feel free to use your own.

To get started you will just need two things to make calls to the Accounting Api.

• xero-tenant-id
• accessToken

Build the login link (a .NET Core Mvc example):

    using Microsoft.AspNetCore.Mvc;
    using Microsoft.Extensions.Logging;
    using Xero.NetStandard.OAuth2.Client;
    using Xero.NetStandard.OAuth2.Config;
    using Xero.NetStandard.OAuth2.Token;
    using Microsoft.Extensions.Options;
    using System;
    using System.Net.Http;
    using System.Threading.Tasks;
    using Xero.NetStandard.OAuth2.Models;
    using System.Collections.Generic;


    namespace XeroNetStandardApp.Controllers
    {
      public class XeroOauth2Controller : Controller
      {
        private readonly ILogger<HomeController> _logger;
        private readonly IOptions<XeroConfiguration> XeroConfig;
        private readonly IHttpClientFactory httpClientFactory;

        public XeroOauth2Controller(IOptions<XeroConfiguration> config, IHttpClientFactory httpClientFactory, ILogger<HomeController> logger)
        {
          _logger = logger;
          this.XeroConfig = config;
          this.httpClientFactory = httpClientFactory;
        }

        public IActionResult Index()
        {
          XeroConfiguration xconfig = new XeroConfiguration();
          xconfig.ClientId = "yourClientId";
          xconfig.ClientSecret = "yourClientSecret";
          xconfig.CallbackUri = new Uri("https://localhost:5001"); //default for standard webapi template
          xconfig.Scope = "openid profile email offline_access files accounting.transactions accounting.contacts";

          var client = new XeroClient(xconfig, httpClientFactory);

          return Redirect(client.BuildLoginUri());
        }
      }
    }

From here the user will be redirected to login, authorise access and get redirected back

On the way back you will get a parameter with code and state

• code
• state

	XeroConfiguration xconfig = new XeroConfiguration(); 
    
	xconfig.ClientId = "yourClientId";
	xconfig.ClientSecret = "yourClientSecret";
	xconfig.CallbackUri = new Uri("https://localhost:5001") //default for standard webapi template
	xconfig.Scope = "openid profile email files accounting.transactions accounting.contacts offline_access";
	
	var client = new XeroClient(xconfig);
	
	//before getting the access token please check that the state matches
	await client.RequestAccessTokenAsync(code, "yourState");
    
	//from here you will need to access your Xero Tenants
	List<Tenant> tenants = await client.GetConnections();
    
	// you will now have the tenant id and access token
	foreach (Tenant tenant in tenants)
	{
		// do something with your tenant and access token
		//client.AccessToken;
		//tenant.TenantId;
	}

To refresh your token. Just call the refresh

	xeroClient.RefreshTokenAsync(xeroToken); //use the latest token you have

	//Here is a full example using a webapi
	[HttpGet]
	public async Task<ActionResult> Index(string code, string state)
	{
		var client = new XeroClient(config.Value, httpClientFactory);
		var xeroToken = (XeroOAuth2Token)await client.RequestXeroTokenAsync(code);
		TokenUtilities.StoreToken(Environment.MachineName, xeroToken);
		return RedirectToAction("Invoices", "Accounting");
	}

To setup the main API object see the snippet below

Get All invoices:

	var AccountingApi = new AccountingApi();
	var response = await AccountingApi.GetInvoicesAsync(accessToken, xeroTenantId);

Get invoices from the last 7 days:

      var AccountingApi = new AccountingApi();


      var sevenDaysAgo = DateTime.Now.AddDays(-7).ToString("yyyy, MM, dd");
      var invoicesFilter = "Date >= DateTime(" + sevenDaysAgo + ")";

      var response = await AccountingApi.GetInvoicesAsync(accessToken, xeroTenantId, null, invoicesFilter);

Create an invoice:

      var contact = new Contact();
      contact.Name = "John Smith";
      
      var line = new LineItem() {
        Description = "A golf ball",
        Quantity = float.Parse(LineQuantity),
        UnitAmount = float.Parse(LineUnitAmount),
        AccountCode = "200"
      };

      var lines = new List<LineItem>() {
        line
      };

      var invoice = new Invoice() {
        Type = Invoice.TypeEnum.ACCREC,
        Contact = contact,
        Date = DateTime.Today,
        DueDate = DateTime.Today.AddDays(30),
        LineItems = lines
      };

      var invoiceList = new List<Invoice>();
      invoiceList.Add(invoice);

      var invoices = new Invoices();
      invoices._Invoices = invoiceList;

      var AccountingApi = new AccountingApi();
      var response = await AccountingApi.CreateInvoicesAsync(accessToken, xeroTenantId, invoices);

Get All Fixed Assets:

      var AssetApi = new AssetApi();
      var response = await AssetApi.GetAssetsAsync(accessToken, xeroTenantId, AssetStatusQueryParam.DRAFT);

Create a fixed asset:

      var asset = new Asset() {
        AssetName = "Office Computer",
        AssetNumber = "FA-001"
      };

      var AssetApi = new AssetApi();
      var response = await AssetApi.CreateAssetAsync(accessToken, xeroTenantId, asset);

TLS 1.0 deprecation

As of June 30, 2018, Xero's API will remove support for TLS 1.0.

The easiest way to force TLS 1.2 is to set the Runtime Environment for your server (Tomcat, etc) to Java 1.8 which defaults to TLS 1.2.

License

This software is published under the MIT License.

Copyright (c) 2019 Xero Limited

Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.