Xamarin Best Rest Client

Purchase Telerik software development tools for every type of project across major development platforms. I am developing (at least attempting anyways) a xamarin android app with connection to API. Project Here - http:/. The REST server and dashboard to manage your data. Get Started with authentication for Mobile Apps in Xamarin Forms app | Microsoft Docs. Preparations for using the mobile client Push notifications of application updates The Application Center console Command-line tool for uploading or deleting an application The mobile client Setting logging and tracing for Application Center on the application server Distributing mobile applications with Application Center tutorial. In a previous post, we learned how to set up Xamarin and Visual Studio for Android development and covered one or two basics of how it works. Main practices. The objective of this page is to build a comprehensive list of open source C++ libraries, so that when one needs an implementation of particular functionality, one needn't to waste time searching on web (DuckDuckGo, Google, Bing etc. Why Rest? For an example, you have to build a Web Service which should be cross functional and should be able to be consumed by any client. Please also. I wish him all the very best !!. When creating a REST API, good documentation is instrumental. * Similar amount of experience in Xamarin Job Type: Mobile Developer This is an exciting new client who are recruiting for Mobile Developers to work on exciting new projects for some large scale clients. OData (Open Data Protocol) is an ISO/IEC approved, OASIS standard that defines a set of best practices for building and consuming RESTful APIs. So the only option is using the Rest Api. They will need a client to receive (and acknowledge) orders. Xamarin and REST APIs Posted by Filip Ekberg on 11 Apr 2014. Get tutorials in our Xamarin Developer Center on developing Xamarin applications using Microsoft Azure, including push notifications to iOS and Android devices. For simple GET requests, a browser can serve as a client. This article demonstrates how to consume a RESTful web service from a Xamarin. We dont have problems about consuming those from mobile/desktop clients, but I dont know which could be the best practice for consume the API from a MVC Controller. The system should have available templates. Twilio Mobile Client lets you embed VoIP into your iOS & Android apps. The Web API controller implements the server method for file upload. Get started with Microsoft Graph and the platform or language of your choice. If you want that service to have an individual instance per request, use Scoped. GraphQL is an exciting new API architecture that enables huge performance benefits over REST APIs. The entire sample could have been written for Xamarin. View Ahsan Javed’s profile on LinkedIn, the world's largest professional community. NET Key for Windows/Xamarin/Unity). Los xamarinos is the best Xamarin mobile applications development company. The Microsoft. Tiny and elegant HTTP client based on the browser Fetch API. Find quick starts, build your first app, and download SDKs. Sample apps built using the Xamarin. Please also. While this approach is suitable for a sample service, it requires extending for a public. Client-Side. NET standard. Each of these concepts play a crucial role in understanding, using, and extending the WordPress REST API, and each is explored in greater depth within this handbook. Once you've registered your client it's easy to start requesting data from Instagram. 1 protocols. It also uses fluent API style and asynchronous in implementation. NET & Xamarin Mobile Developer Санкт-Петербург, Россия Программное обеспечение 1 человек порекомендовал участника Denis. NET reference documentation for the Cloud Translation API. I was very impressed by the easiness to use it. Connect with customers and make engagement personal with our simple, programmable SMS, voice, video & verification tools. Create and consume WCF Restful Service using an HttpClient By Christos S. “รวม Link ดี ๆ มีประโยชน์ของ Xamarin (Components, Controls, Plugins, Samples) Update สม่ำเสมอ” is published by Pranart Dechpokket in Xamarin. śląskie, Polska Ponad 500 kontaktów. JSON (JavaScript Object Notation) has been the go-to data interchange format when it comes to REST APIs. The Web API component of the application acts as an HTTP based interface which accepts HTTP requests from a third party client application and performs data operations. Attila Tamás has 10 jobs listed on their profile. Forms — Xamarin Community Forums http://forums. We are looking for an experienced Xamarin developer to join our team. Representational State Transfer (REST) is an architectural style for building web services. Telerik Developer Advocate Sam Basu is an expert on usinng Xamarin to develop mobile apps, and now he's putting a new twist on things -- showing developers how to integrate artificial intelligence into the mix! Ahead of his talk on this topic at Visual Studio Live! Austin 2018 in late April, we got. These might seem a bit strange or overwhelming when served at once, but try making your own REST API. Auth and PCL Crypto to securely store data on-device. Making use of Google place API to provide the Location auto-complete option with text field in Xamarin iOS. the best way to call REST service in. To share with the community, we. A little while ago the Windows Azure team introduced the message pump pattern to Service Bus Message Bus SDK and it got me thinking about how I could leverage this from any web enabled client. Pre-requisites. It all happens in the browser. Creating and updating your website should be the least of your worries. I'm a results-driven technical architect with 20+ years of experience at an industry leading voluntary benefits company. There is no System. Refit makes it relatively easy to make calls to REST API, without writing much of wrapping code. Simply use objects to connect and access data just as you would access any traditional database. This project is to do a technology POC (Proof of Concept) to demonstrate the use of Identity Server 4. The language you use to implement an API doesn’t really matter, as Erik Hoffman below eloquently explains. A collection of Visual Studio C# custom tool code generators for Swagger / OpenAPI specification files. Oracle cloud programmer. Official Site - @RestSharp - Google Group License: Apache License 2. Alfon Chito has 8 jobs listed on their profile. NET Standard library could also be used) and call it EasyChat. NET Key for Windows/Xamarin/Unity). Amplify allows you quickly set up authentication, analytics, and offline data sync for your mobile applications with a few commands and integrate them into your application with a few lines of code. Build and deploy powerful apps with APIs, SDKs, REST services and mapping tools. Hopefully this will help you get over the initial hurdle of not knowing which client to use in. Apps that interact with RESTful services will benefit from following a few best practices. If you must call the REST API directly from the client, you should use the corresponding client-side Parse key for that plaform (e. We'll use the Http Client nuget library to create Http requests. See the complete profile on LinkedIn and discover Michał’s connections and jobs at similar companies. AllowedGrantTypes property. RESTful APIs in most cases return the plain text, JSON or XML response. How to upload images to an ASP NET Core REST service with Xamarin. You can also clone and run the samples to get a sense of how the SDK works. NET, and other languages, as well as from general IDE features, such as the integrated VCS client. See the complete profile on LinkedIn and discover Micah’s connections and jobs at similar companies. There are many libraries that based on HttpClient help us to call REST APIs. So far I have and android app built using xamarin to create tasks. I'm a responsible, hard-working person focused on client satisfaction and will be happy to work on any project within my competencies. ; Updated: 8 Oct 2019. By continuing to browse this site you are agreeing to our use of cookies. Apache HttpClient is a robust and complete solution Java library to perform HTTP operations, including RESTful service. These might seem a bit strange or overwhelming when served at once, but try making your own REST API. Repositories have the plural name of the Loopback models. Having being a full time Xamarin. What is Postman? Postman is a collaboration platform for API development. Representational State Transfer (REST) is a Service, which is based on REST architecture to build the Services on the Web. Xamarin - Rest Services from a PCL I see this on a daily basis especially on the Xamarin forums. REST APIs are used by your server. I’ve personally used this approach many times, but I felt that it needed updating for 2018, so here it is. Simply use objects to connect and access data just as you would access any traditional database. It contains: Server directory: Loopback server application. For simple GET requests, a browser can serve as a client. Irineu tem 9 empregos no perfil. For example, I have deployed my REST API on a server on my LAN. Net, Microsoft web technologies, API design, Services (REST, WCF), SQL Server, creating reusable frameworks and Sitecore. - reactiveui/refit. The first step is doing the actual Xamarin. How to send parameter in REST api in xamarin. I wanted to create a long polling REST service that would allow me to extend the message pump pattern over. I'm a very experienced mobile app developer and architect using Xamarin framework, I have been working over 7 years helping companies to ship "5 stars" apps around the globe, currently I'm a Microsoft MVP helping communities and companies to improve his skills on mobile development and converting ideas into awesome experiences also I have been Xamarin Certified Mobile Developer. 3 or higher. Let's start with creating a blank Xamarin. Our Experience. NET MVC & Web API technologies,Single-Page (Angularjs) ,NHibernate as ORM, logging, validation, exception handling, localization XLS generator system is a system that generates XLS reports according to a user’s request. The Telerik Reporting REST service provides an Application Programming Interface (API) over HTTP to the reports generation engine. NET Core application, especially through Http calls, with HttpClient. NET Core 2. Net core API's (a specialty), and behind the scenes,. This article will walk you through on building a simple Working Memory game application using the power of Xamarin and ASP. Review last REST service, return “json” data back to client. Start a new Xamarin. View Alfonso Jayson D Ragasa’s profile on LinkedIn, the world's largest professional community. Hope, these set of example might help you creating your first sample dynamic UI form in Xamarin. The NuGet Team does not provide support for this client. Skip to main content TechRadar The source for Tech Buying Advice. you can now proceed in creating our Xamarin Cross Platform Mobile App project. Visualize o perfil completo no LinkedIn e descubra as conexões de Irineu e as vagas em empresas similares. The article was inspired by the Advanced OData Tutorial article published at the odata. See the complete profile on LinkedIn and discover To’s connections. Xamarin from Zero to Hero. What you should gather from these articles is that Microsoft is doing their best to set you up for success but not wanting to take any documentation for granted, let's see what happens when we create a brand new Xamarin. “รวม Link ดี ๆ มีประโยชน์ของ Xamarin (Components, Controls, Plugins, Samples) Update สม่ำเสมอ” is published by Pranart Dechpokket in Xamarin. You can set up the AWS Mobile SDK for. Packages The automatic type-safe REST library for Xamarin and. where the data is stored and accessed from a RESTful web service. In this article we will learn how to show data in Listview with API using Xamarin Forms. So let us take a real life example of a Blind Person. The automatic type-safe REST library for Xamarin and. See the complete profile on LinkedIn and discover Alfonso Jayson D’S connections and jobs at similar companies. Forms built in pages, layouts, and controls to build and design mobile apps from a single API that is highly extensible. 0, REST API hosted in Azure App Services, and Xamarin & Web Clients. In a REST API which correctly uses hypermedia, the URLs to contact with HTTP requests by the client are not fixed. NET Core, Xamarin and. I am developing a cross mobile app using Xamarin and I am trying to post some items to a SharePoint List. It hides the complexity behind serializiing and deserializing entities/models and creating HTTP requests. Provides a sample implementation for consuming HTTP REST web services, including calling GET, POST, PUT and DELETE operations. REST requests are made over HTTP using the same HTTP verbs that web browsers use to retrieve web pages and to send data to servers. Search no more: here is a summary of the seven best MQTT Client tools 2019 for beginners and experts. Second, create the solution from scratch means from blank. Abstract: This article explains how to use Entity Framework (EF) Core in ASP. Sr WPF/Xamarin Engineer Synergy Sports Technology, named by Fast Company as one of the world's top 10 most innovative companies in sports, seeks a talented Software Engineer to join our team on a contracting basis. In the context of the WordPress REST API a route is a URI which can be mapped to different. It was a Thursday. GitHub Gist: instantly share code, notes, and snippets. Telerik Developer Advocate Sam Basu is an expert on usinng Xamarin to develop mobile apps, and now he's putting a new twist on things -- showing developers how to integrate artificial intelligence into the mix! Ahead of his talk on this topic at Visual Studio Live! Austin 2018 in late April, we got. paket add Microsoft. NET MVC & Web API technologies,Single-Page (Angularjs) ,NHibernate as ORM, logging, validation, exception handling, localization XLS generator system is a system that generates XLS reports according to a user’s request. With Umbraco, you get a content management system known and loved for its flexibility and great editing experience. You have a lot of options when you're talking to various servers. Client NuGet package in our mobile apps to communicate with the server. In this series, i am gonna teach you how we can develop RESTful API's in Asp. • Be responsible of making a good QA and participate on the code review with our Architect. Using RESTful Service in Xamarin. We also took a quick look at what Azure Storage’s offering all provided, how to create a service account, and then how to. Web API Client is fantastic for a JSON/XML REST client. Since you have a client/server architecture, there are a lot of possibilities with Appium. The eBook focuses on building cross-platform enterprise apps using Xamarin. Find a consulting partner to help you take your business mobile, ramp up with Visual Studio and Xamarin, and build higher quality mobile solutions. Make the tiniest API possible and see how it looks. A slightly updated approach to resilient networking services with Xamarin. Building Flexible and Efficient Xamarin Apps with GraphQL November 18th, 2016 Xamarin Xamarin. HCL has leveraged. Auth and PCL Crypto to securely store data on-device. NET Refit is a library heavily inspired by Square's Retrofit library, and it turns your REST API into a live interface: public interface IGitHubApi { [ Get ( "/users/{user}" )] Task < User > GetUser ( string user ); }. Xamarin newsletter is a comprehensive summary of the day's most important blog posts and news articles from the best Xamarin websites on the web, and delivered to your email inbox each morning. 0 Creating the Rest Client class. View Alfonso Jayson D Ragasa’s profile on LinkedIn, the world's largest professional community. NET Core, Xamarin and. Representational state transfer[REST] is a Architectural style and not a protocol unlike SOAP. I am developing a cross mobile app using Xamarin and I am trying to post some items to a SharePoint List. Microsoft Bot Framework is a comprehensive. Consuming a RESTful Web Service in Xamarin Forms using Refit (Part 1) January 10, 2018 17 Comments In Xamarin Forms there are several ways to consume restful web services, could be by using the Microsoft Http Libraries or third party libraries like Refit, RESTSharp, PortableRest, etc. Above: The Toolbox and Banana Finder solutions are connected to the mac at the same time! Unlike the old build host which ran as a secondary program on the mac, slow and rather clunky to use and allowing only 1 computer to be connected at a time, The Xamarin Mac Agent has changed all this by being. , as a wholly. Now, any of your Xamarin. Forms also allows you to put real apps onto real devices to show off your prototypes. It is an alternate to using complex mechanisms like COBRA, RPC, and SOAP to connect between client and server. Using NuGet (or whatever is available at the time of reading) install the Microsoft Http Client libraries: Install-Package Microsoft. Rohith has 4 jobs listed on their profile. The REST service should decorate each action with the [BasicAuthentication] attribute. Inspect traffic, set breakpoints, and fiddle with incoming or outgoing data. To understand how REST APIs work, you therefore need to know what rules (or ‘constraints’) they function under. What if the client does not know how to create a proxy?. Now we have the Xamarin mobile app cloned as our client in Loopback, let's replace the. Forms developer for over 4 years now (I still am), I feel as though I have a good grasp on the good and the bad. Emmanuele ha indicato 3 esperienze lavorative sul suo profilo. Net clients. Christian Helle's Blog to find the best native implementation of it and port it to C#. They are available for download and contributions on GitHub, where you will also find installation instructions and sample code:. For instance: you can retrieve photos with a given hashtag by accessing the following URL with your access_token (replace ACCESS-TOKEN with your own):. 2 3 4 6 0 Total: 15 Web APIs have been around for a long time now. The NuGet Team does not provide support for this client. com, India's No. Register your app with an OAuth server and choose an appropriate OAuth flow. The Telerik Reporting REST service provides an Application Programming Interface (API) over HTTP to the reports generation engine. Xamarin IOS and HTTPClient Hello everyone, I'm a total newbie with Xamarin, I'm using it to write an IOS app, and now I got stuck with a very stupid problem: I need to perform a GET request (receiving a JSON). An internal app I've been working with for a while needed to use OAuth2 (specifically, OpenID Connect) to perform authentication against our Google Apps for Your Domain (GAFYD) accounts. Find quick starts, build your first app, and download SDKs. The automatic type-safe REST library for Xamarin and. Disposing the HttpClient, the underlying socket is not immediately released. Forms is an open source mobile UI framework from Microsoft for building iOS, Android, & Windows apps with. In this article, we will discuss how to use a easy way to call our REST APIs in. REST API Reference The four main HTTP methods (GET, PUT, POST, and DELETE) are mapped to CRUD operations as follows: GET retrieves the representation of the resource at a specified URI. Client-Side. The Best Free REST API Debugging Tools for Developing APIs Updated: April 11, 2019 9 minute read As we developed the Moesif API analytics platform, we needed to create and use many APIs. RestSharp is one of the best libraries to use if you frequently use REST to consume HTTP APIs in DotNet. My first example was a GET: C# call REST client with x-api-key within grasshopper. Are you looking for a quick or simple tutorial on how you can call a RESTful API service in Xamarin Forms? Are you also searching for a way on how you can parse JSON data? In this post, you will learn a simple way on how to consume and use REST API in Xamarin Forms. If only one instance is required during the application lifecycle, use Singleton. NET has come a long way in terms of web services architectures. The NuGet Team does not provide support for this client. Client SDK Guides. Hello guys I am very noob in rest api, I try to post inormation to my api, I post data using rest easy of google chrome. This topic shows you how to authenticate users of an App Service Mobile App from your client application. Add a few more and you can check the verification token. Hi friends, I am facing a serious problem with Windows authentication in Web api. The client is Xamarin, and the application itself was developed purposely for the conference Xamarin Evolve 2016 which took place in Orlando. A blogger, a bit of tech freak and a software developer. Forms and uses the eShopOnContainers mobile app as an example. Making use of Google place API to provide the Location auto-complete option with text field in Xamarin iOS. C# HttpClient Example: System. NET to create business objects from that data (not sure what components or clients are available for this it doesnt seem like you can use xamarin components in the common PCL project but it appears you can use nuget packages). Use the open source version of Umbraco for free and install, setup, and host it yourself or let us take care of. Essentially, what this means is that the necessary state to handle the request is contained within the request itself, whether as part of the URI, query-string parameters, body, or headers. Read on and in just 10 minutes you will build an Android chat app using Xamarin and Twilio IP Messaging. Get tutorials in our Xamarin Developer Center on developing Xamarin applications using Microsoft Azure, including push notifications to iOS and Android devices. Join LinkedIn Summary. The generated HTML/JS files are simple static files that run purely client-side without the need for any particular server (of course they can communicate with servers via WCF, SOAP, REST, WebSockets, SignalR, etc. Where it will make difference is ecosystem and tools available in this ecosystem. As an app developer, you really don't want to mess with any of this. View Michał Górski’s profile on LinkedIn, the world's largest professional community. Contribute to restsharp/RestSharp development by creating an account on GitHub. Here is my method code. Provides a sample class for consuming HTTP REST web services, including calling GET, POST, PUT and DELETE operations. js Client for Google Maps Services are community supported client libraries, open sourced under the Apache 2. parameters, headers, cookies and body easily. JetBrains Rider supports creating and working with Xamarin applications for both Android and iOS. My role consists to implement and maintain Oracle products through customized tools using SOAP and REST APIs, Office Web and VSTO add in,. Twilio Mobile Client lets you embed VoIP into your iOS & Android apps. 4 - PowerBI REST API and Xamarin. The recommended APIs for Cloud Storage are in the Google Cloud Client Library and enable your app to run in App Engine as well as other environments that support Java 8. śląskie, Polska Ponad 500 kontaktów. NET skills to. not the best business model solution that I'll be using throughout the rest of the. (database, file, console) and change the logging configuration on-the-fly. In this article I will provide you with a module I developed for making web request to REST services using. From first principles to distribution, everything you need is here. Configuring the Authentication Flow. Authentication, quotas, pricing, and policies Activate the API and get an API key. Get free SSL certificate from letsencrypt. parameters, headers, cookies and body easily. Download now Search. Read on and in just 10 minutes you will build an Android chat app using Xamarin and Twilio IP Messaging. I want the users to be able to schedule meetings via GoToMeeting but it should be integrated in the app. In this series, i am gonna teach you how we can develop RESTful API's in Asp. DefaultRequestHeaders. Forms — Xamarin Community Forums http://forums. Hello I need Xamarin application developed for Android and iOS (iOS part can be done later). There are five basic elements that make an API ‘RESTful’. I am not sure how to return the error. In my opinion you're much better off using the Client Object Model. NET and Xamarin? The AWS Mobile SDK for. How to Build Android Chat Apps using Xamarin and Twilio Were you excited when you heard we had Xamarin support for Twilio IP Messaging in iOS but were wondering ‘what about Android?’. We'll use the System. The more you know. To do the network communication I would like to use HttpClient which seems to be the recommended approach for communicating with web services going forward. Overview; auth:import and auth:export; Firebase Realtime Database Operation Types; Deploy Targets. This information is not only for us at Savvy Apps. To make apps easier to build, Xamarin now offers a component store, giving Xamarin developers instant access to a range of free and paid pre-built libraries and user interface controls. The authentication flow between a client and IdentityServer can be configured by specifying the grant types in the Client. Long-term strategic partners are mobile experts who can guide you through any stage of the app lifecycle and will help you design, develop, and test high-performing cross-platform mobile apps. View Jeff Pike, CSSLP’S profile on LinkedIn, the world's largest professional community. Make the tiniest API possible and see how it looks. The REST service should decorate each action with the [BasicAuthentication] attribute. The first step is doing the actual Xamarin. The current team, under my direction, is working to replace an established but 'evolved' conventional web and data code-base and all its ancillary and client parts. Los xamarinos is the best Xamarin mobile applications development company. Add reference to the REFIT Packages from Nugget. Xamarin is a leading mobile app development platform that allows developers to use a shared C# codebase to create iOS, Android, and Windows Store apps with native user interfaces. In order to consumer JSON Restful service , we need to do follow steps. At the end of article, I will also cover how you can test your REST based service using a fiddler tool. XamarinForms-Plugins. WebRTC is a free, open project that provides browsers and mobile applications with Real-Time Communications (RTC) capabilities via simple APIs. Net clients. Carefully consider the lifetime of the service. The Best Free REST API Debugging Tools for Developing APIs Updated: April 11, 2019 9 minute read As we developed the Moesif API analytics platform, we needed to create and use many APIs. xamarin-forms-httpclient-sample. forms ? I have created REST API Project in xamarin using PCL. The gives developers the power to easily connect their mobile Xamarin apps to Jira data, including Projects, Groups, Workflows, and more! The makes this Jira data look like SQL tables in your applications. An example REST API client for C#. Using RESTful Service in Xamarin. NET Key for Windows/Xamarin/Unity). Making Requests Using the REST API. Read the Developer's guide for the Google API Client Library for. • Knowledge of object oriented design and programming experience • Strong concepts of Parallel Programming (TPL). REST and REST Streaming. In the context of the WordPress REST API a route is a URI which can be mapped to different. I've built a REST API, the end user app (in Xamarin Forms) and an admin portal (in Angular). Web Services Test Tools. It is a great cross-platform development software, one of the best on the market, and it is free and open-source!. Use HttpClient and the rest of the Windows. This document will only cover "how to deal JSON response as a Serialized Object for READ/WRITE & convert JSON object into meanful Object". Back4App is an easy-to-use, flexible and scalable backend based on Parse Platform. Net, Microsoft web technologies, API design, Services (REST, WCF), SQL Server, creating reusable frameworks and Sitecore. Hello guys I am very noob in rest api, I try to post inormation to my api, I post data using rest easy of google chrome. Carefully consider the lifetime of the service. A client digital certificate or client certificate is basically a file, usually protected with a password and loaded unto a client application (usually as PKCS12 files with the. With ComponentOne Studio for Xamarin you get calendars, data management controls for displaying, editing and manipulating data, as well as, data visualization controls for generating Cartesian charts, pie charts, gauges and bullet graphs. We went through many concepts of the REST API building and covered some of the top REST API best practices. I am developing a cross mobile app using Xamarin and I am trying to post some items to a SharePoint List. ’s connections and jobs at similar companies. C# HttpClient Example: System. Create and manage Verification services. Mobile (Xamarin) Developer native iOS client for booking tickets for concerts, based on "Boonex" CMS REST api and Swift 1. Restaurant Point of sale system | User Manual video 2. ClientRuntime v2. The client is Xamarin, and the application itself was developed purposely for the conference Xamarin Evolve 2016 which took place in Orlando. Signed, which is obsolete from v160. In my opinion you're much better off using the Client Object Model. as you can see in my image (Image). gl/qUZ0XV3), DZone MVB and founder of stacktips. ClientRuntime v2. The entire sample could have been written for Xamarin. EVERY single tutorial or example I can find with Xamarin REST API consumption only involves dealing with a single data type, so I'm getting a bit confused when it comes to handling multiple data types. He is highly skilled. Clicking on a specific Firebase app lets you view and modify your app's database in. The gives developers the power to easily connect their mobile Xamarin apps to Jira data, including Projects, Groups, Workflows, and more! The makes this Jira data look like SQL tables in your applications. Recently I had to develop a project in the graduate study on mobile development that I am attending to, a simple CRUD app in Xamarin Forms, so I chose Azure Easy Tables as data storage instead of…. forms (Portable Class Library) then I have Successfully receive json Response. Create the RestfUL request URI. Forms is already equipped with data-binding, commands and dependency injection which are some MVVM ingredients we will look at in this article. Below is a basic example of what I am trying to do with a Post. If you only make REST API calls from a server that you manage and use to support your app, see Enable Server-Side API Access for instructions on how to authorize on your Android client. Allegedly it comes at no surprise that many backend services are implemented with WCF and therefore if you are in the business of writing mobile clients may face the task of integrating such a service.