Android Websocket Server Tutorial

Unity3d's Tutorial Modules. Open the project in Android Studio; Install the Android Demo App to your Device. If you would like to use the WebSocket API, it is useful if you have a server. In this tutorial we will be using java Sockets to achieve our server-client communication. WebSocket is a web technology providing full-duplex communications channels over a single TCP connection. This makes it possible to access the hotspot feature directly and without adding extra charges from your wireless provider. Therefor, I need to have a WebSocket server on the Android somehow. Light, clean, and free. If everything works, you should now be able to turn the LED on and off using the buttons in the app. When using the WebSocket client to connect to server endpoints, the timeout for IO operations while establishing the connection is controlled by the userProperties of the provided javax. Android News blog dedicated to providing expert tips, news, reviews, Android Phones, Android Apps, Android Tablet, Rooting & Howtos. This is the same media player application used to advertise GStreamer on Android, and the download link can be found in the Android tutorial 5: A Complete media player page. The world's first Android News Source, Phandroid. With websockets you can do real time messaging for things like chat, communication with IoT, gaming, and a whole lot of other things that need instant communication between clients and the server. It provides download, upload features with resume support and folder synchronization. Open your Email app. Grab a copy of phpwebsockets which is a WebSocket server in PHP. ESP8266+Websocket Server RGB LED Controller: Hello World! In this instructable I'm going to illustrate the use of web sockets with the ESP8266 micro controller. For this we will be using Node. WebSocket programming is a new paradigm in web development that takes the interactive web experience to a new level of richness. js based server Has support for maximum no: of browsers Has. Now let's setup a simple WebSocket server: You'll notice the. js + websockets? i saw the connection plopping up on the node. NET UWP/WinRT VBScript Xojo. Introduction. Now you may not always be able to guarantee that your client browser and your web server support WebSockets. In this tutorial well learn how to create a chat client that communicates with a Socket. In this tutorial, we’ll be focusing on creating a very simple web server using the net/http package. Through the WebSocket. In this walkthrough, you will learn how to deploy an existing JavaScript JMS web app built with the Kaazing WebSocket Gateway JavaScript JMS libraries as a hybrid app for Android. MSI Afterburner is the world’s most recognized and widely used graphics card overclocking utility. By passing {port: 8080} we bind it to the port 8080. Do you use Windows at work, macOS at home, and Linux for your special projects? No problem. Selendroid is a test automation framework which drives off the UI of Android native and hybrid applications (apps) and the mobile web. The following code is used to create a Web Socket. 0 Community. Build Android apps with Azure App Service Mobile Apps. We have covered Client side implementation in our previous post “Android Client-Server Using Sockets – Client Implementation” Android has very vast set of libraries so that users can implement innovative ideas with provided libraries. Around 2005, AJAX started to make the web feel more dynamic. For this we will be using Node. Authentication Over WebSocket. Connectivity Components - App Inventor for Android For Android 2. This is the first post in the practical Golang series. WebSockets allow for a two way connection between the client and the server and are a native part of the HTML5 standard. import websocket ws = websocket. An archive of the CodePlex open source hosting site. Complete the same steps for the outgoing mail server and wait for the Mail app to verify your information. The Server Edition is good for small to medium-size businesses that need higher performance on a single Windows server. iOS, Android, Mac OS X or other L2TP/IPsec VPN compatible client devices can connect to your SoftEther VPN Server. In addition, our site features thousands of how-to articles and a deep knowledge base filled with information about your Android device. Like (10) Comment (4) The sample WebSocket server application is a virtual USD Exchange rate publishing server. AndroidでWebSocket 2011/8/27 Android Developers Gig in KOBE kadoppe 1 Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. In this walkthrough, you will learn how to deploy an existing JavaScript JMS web app built with the Kaazing WebSocket Gateway JavaScript JMS libraries as a hybrid app for Android. ws4py is a Python package implementing the WebSocket protocol as defined in RFC 6455. Why WebSockets instead of HTTP(S)? With WebSockets you can establish a persistent connection, which allows for bidirectional communication between client and server. js and Websockets to Build a Chat Service between the client and the server. js As shown in Figure 9, the node. So if someone wants to develop mobile apps for Android and use WebSockets, they must implement the entire protocol in Java or use an existing WebSocket library. SignalR also. Gmail on Android Add Your Gmail Account to Android Using IMAP. Type your Email address and Password, and click Next. com, the Web's best guide to mobile apps. If you are interested in further development with Android, you may firstly download Android jWebSocket APK and try it in your device. Explore our tutorials to build apps with Pusher products. Tutorial on Client-Server Communications EE368/CS232 Digital Image Processing, Spring 2015 Version for Your Personal Computer Introduction In this tutorial, we will learn how to set up client-server communication for running an image processing application on a server from an Android device. We also need to consider the ease of development. Get all the benefits of cross-platform development while building apps just the way you like. Where as, WebSocket adds a number of features to manage the streams, but leaves old semantics untouched. 1 or later) [email protected] This tutorial will use Django, a popular Python web framework. It provides detailed overview of your hardware and comes with some additional features like customizing fan profiles, benchmarking and video recording. This is a very early/incomplete/broken example of MQTT over Websockets for test. Given how widespread the app is being used, you'd have assumed it was available everywhere, but that wasn't the case. In this tutorial, we will present an example of how. Modern web applications require more interactivity than ever before fo client/server communications. It is supported by the community on Couchbase Forums, and is best suited for non-enterprise developers or non-commercial development where basic availability, performance, tooling, and query is sufficient. Java WebSockets Tutorial with Glassfish and Jetty February 1, 2015 August 10, 2017 filip In this tutorial I will show you how to make a simple chat application running on Glassfish 4. Ant Media Server, open source software, supports publishing live streams with WebRTC and RTMP. The server uses the point-to-point tunneling protocol (PPTP. With just a few lines of JavaScript, we have a full blown WebSockets server that leverages the Twitter Streaming API. Why do you have to spend your money on a bulky wireless keyboard and mouse? Try Air Keyboard and feel the ultimate universality of your tablet!. If all goes well, the WebSocket connection is now verified. By passing {port: 8080} we bind it to the port 8080. Mobile network disconnections managed at XMPP server level, with contacts appearing online within the contact list. They act as a compliment and possible alternative to RESTful APIs that have been around for significantly longer. A protip by lowerkey about python, websocket, websockets, and websocket-server. Socket wraps the WebSocket API in an API consistent with Dojo and provides a long-polling alternative if the client doesn't support WebSocket. For a full working example please have a look to this repo provided by Daniele Zurico. Start the server; Open the app, and the first time tutorial guides you through everything. The tutorial now has a link to online help for each step Added a toolbar for stepping while debugging When a memoryrecord fails to activate, you can rightclick it and see why it failed. Supports Windows, Mac, and Linux. This process starts with the client sending a regular HTTP request to the server. Packet capture/Network traffic sniffer app with SSL decryption. When using the WebSocket client to connect to server endpoints, the timeout for IO operations while establishing the connection is controlled by the userProperties of the provided javax. European quality software made in USA (with Android SSL support). Default squid setting is “ALLOWED TO CONNECT ONLY HTTPS PORT”. Built on top of asyncio, Python’s standard asynchronous I/O framework, it provides an elegant coroutine-based API. There are many ways to run servers and plenty of cloud platforms to do so. Rest http calls are the most common interaction between Android apps and remote servers. Video Tutorial. Therefor, I need to have a WebSocket server on the Android somehow. This tutorial is based on Android Client-Server Using Sockets. The world's first Android News Source, Phandroid. Connect First, Click on the Connect button, then connected to ws://broker. Contribute to Nilhcem/android-websocket-example development by creating an account on GitHub. If the server does not support WebSockets, then you must use another method of data transfer. With this project you can use a web browser to run a web socket client to control RGB LED connected to output pins on the ESP8266 m. This is a very early/incomplete/broken example of MQTT over Websockets for test. loop call on the loop() function to keep the connection alive. For the latest version of The WebSocket API use the WHATWG Living Standard. Using WebSockets and Spark to create a real-time chat app Nov 8, 2015 • Written by David Åse • Spark Framework Tutorials An improved version of this tutorial is available for my new framework, Javalin. json for a full list of used open source projects. However the. I'm developing a new application that listens to incoming connections from browsers on the network. * Provides a foundational introduction for the use of Web Forms, Ajax, WebSockets, and server generated navigation menus. The Universal Windows Platform (UWP) provides support for both client and server use of WebSockets. For this tutorial, we will need a simple layout with a Button to start. Xmpp vs websocket. Android Forums is the first and largest community dedicated to Android Phones, Android Tablets, Android Wear, Android Auto, and more. NET Console based application , that can handle multiple clients at the same time. This repository contains a barebones WebSocket server and client implementation written in 100% Java. Android is developed in the Android Open Source Project (AOSP). For more information on applying secure networking principles, see Android's networking security tips. Start the Ant Media Server Enterprise Edition. A server (program) runs on a specifi c computer and has a socket that is bound to a specifi c port. 1 Released 2005-12-09) an application server framework, including functionality such as DB and arbitrary object pooling, Web servers, persistant object repository, and a text console. io to implement a publish/subscribe feature in the application. js, you need a MySQL driver. In this Node. heimcontrol. Unity3d's Tutorial Modules. 1) If possible then how to implement it for a Android Application. The remote app for your computer. This tutorial is meant to demonstrate how to implement a uni\bidirectional communication between an Arduino sketch (running on SAM3X Arduino Compatible processor) and a binary application on iMX6 Linux processor. The OkHttp library actually provides an implementation of the HttpUrlConnection interface, which Android 4. import websocket ws = websocket. Unity3D iOS/Android/Webplayer + node. At its core, rosbridge is a websockets server with a JSON API exposing ROS service and pub/sub functionality. The WebSocket API in Java EE offers a powerful lifecycle model and annotation-driven configuration, and is an ideal solution for the development of interactive and dynamic websites. We will cover 3 things here: backend (Arduino code), frontend and at the end I will show you how to secure the sockets by checking cookies, that material builds up on my previous tutorial. Make your changes and simply hit refresh!. Build and run the Android app. The OkHttp library actually provides an implementation of the HttpUrlConnection interface, which Android 4. If that’s your case, I highly recommend you take a look at SignalR. A res_http_websocket module has been created which allows the JavaScript developers to interact and communicate with Asterisk. WebSockets Tutorial PDF Version Quick Guide Resources Job Search Discussion Web sockets are defined as a two-way communication between the servers and the clients, which mean both the parties, communicate and exchange data at the same time. We demonstrated interacting with this server by telnetting to localhost's port 81, where we could interact with the server. In this Node. The Server responds to the request with another HTTP header, this is the last time a HTTP header gets used in the WebSocket connection. As always, the full source code is available here. IO on the server side:. Watch out which version you will download! Check the installed Android application (type, version number) and operating system of your computer. The web server should be able to respond to client requests. For the latest version of The WebSocket API use the WHATWG Living Standard. Here you will find video tutorial on how to use lucky patcher app. This JSR will provide support in the Java EE platform for:-. ServerSocket is a java. Modern web applications require more interactivity than ever before fo client/server communications. For a more complete application (that's still reasonably simple), I threw together a real-time X-Y scatter plotting application called Real-Time Plotter. Below I will show how I do the automated integration tests for Websocket server using Spring's StompClient. ) First, install Django: pip install Django. Note: After we released the Visual Studio Emulator for Android, Google updated their Android emulator to use hardware acceleration. py) and start a web server on port 8888 serving index. This trick works on Windows 7, 8, and 10. Create a browser client With the server side pieces in place, now let’s turn our attention to the JavaScript client that will send messages to and receive messages from the server side. Tutorial on Client-Server Communications EE368/CS232 Digital Image Processing, Spring 2015 Version for Your Personal Computer Introduction In this tutorial, we will learn how to set up client-server communication for running an image processing application on a server from an Android device. An listening endpoint and a WebSocket standard is the minimum needed to set up a server. If you are new to MQTT and want to know how it works take a look at the MQTT Essentials which explains all the basics in a very digestable manner. WebServer - A simple web server that shows the value of the analog input. Python Tornado Web Server With WebSockets - Part I Today i will show you and give you some input how to make a web and websocket server with Tornado , which is currently my favorite when i need "mockup" service so i can show it to someone. This tutorial shows you how to create an application that uses the WebSocket API for real-time communication between a client and a server. To support an authenticated transport, Apollo Server provides lifecycle hooks, including onConnect to validate the connection. ws4py is a Python package implementing the WebSocket protocol as defined in RFC 6455. The world's first Android News Source, Phandroid. The development of websockets is shaped by four principles:. py" hosting the receiving end of the WebSocket. I am just trying to understand what is the need going low level WebSocket way since in my learning, reading, work, I have never encountered a web service that is not REST based. The Universal Windows Platform (UWP) provides support for both client and server use of WebSockets. The Server responds to the request with another HTTP header, this is the last time a HTTP header gets used in the WebSocket connection. ServerSocket is a java. WebSocket is a computer communications protocol, providing full-duplex communication channels over a single TCP connection. Do you use Windows at work, macOS at home, and Linux for your special projects? No problem. This tutorial covers the default Email app on the Android, not the Gmail app. It allows integrating WebSocket client and server functionality into C++ programs. The server can then compare this ticket, check source IPs, verify that the ticket hasn’t been re-used and hasn’t expired, and do any other sort of permission checking. 0 allows realtime data without invasive changes to existing code. Attendees; CalendarContract. As always, the full source code is available here. 0' Don’t forget to add the Internet permission in your Android manifest since the application will use the network to create a WebSocket connection to the Echo WebSocket server. 1 Released 2005-12-09) an application server framework, including functionality such as DB and arbitrary object pooling, Web servers, persistant object repository, and a text console. It is an Maven. Introduction. WebSocket is a bi-directional protocol where there are no pre-defined message patterns such as request/response. Lessons Send a simple request Learn how to send a simple request using the default behaviors of Volley, and how to cancel a request. The server listens to the socket for a client to make a connection request (see Fig. All you have to do is call the WebSocket constructor and pass in the URL of your server. Therefor, I need to have a WebSocket server on the Android somehow. WebSocket was designed as a transport layer protocol, to be TCP for the Web. European quality software made in USA (with Android SSL support). Snap a photo of your receipt using SmartScan and Expensify takes care of the rest. MQTT over WebSockets. Install instructions (Windows) - Using the installer (recommended): download it, launch it and follow the instructions. When you run the server locally, it doesn’t use a Docker configuration or run in an App Engine environment. Microsoft OneNote | The digital note-taking app for your devices. European quality software made in USA (with Android SSL support). Tutorials are step-by-step guides to help users set up apps, install mods, solve issues, and much more. It will read a message from the client, send a reply, and exit. Now in this post, we can connect to WebSocket using OKHttp. Tutorial on Client-Server Communications EE368/CS232 Digital Image Processing, Spring 2015 Version for Your Personal Computer Introduction In this tutorial, we will learn how to set up client-server communication for running an image processing application on a server from an Android device. 3 or later (recommended 4. AlarmClock; BlockedNumberContract; BlockedNumberContract. The OkHttp library actually provides an implementation of the HttpUrlConnection interface, which Android 4. Client technologies. If you are interested in further development with Android, you may firstly download Android jWebSocket APK and try it in your device. MQTT Client sample. sh Open the WebRTC Android Demo in Android Studio. If an encrypted WebSocket connection is used, then the use of Transport Layer Security (TLS) in the WebSocket Secure connection ensures that an HTTP CONNECT command is issued when the browser is configured to use an explicit proxy server. Rest http calls are the most common interaction between Android apps and remote servers. Through the WebSocket. Java Tutorial Network (JavaTutorial. Emby mobile apps are available for Android, iPhone, iPad, Windows Phone and Windows Tablets. I assume that you are familiar. However, please note that this application still has some errors, but for example you can reuse the connection mechanism to communicate with jWebSocket server. Hello, I create that post to present you a tutorial aiming to learn you to use WebSockets on Android with OkHttp. The Android operating system can be divided into the four areas as depicted in the following graphic. There you can find projects. The WebSocket protocol was standardized by the IETF as RFC 6455 in 2011, and the WebSocket API in Web IDL is being standardized by the W3C. The constructor for ServerSocket throws an exception if it can't listen on the specified port (for example, the port is already being used). Selendroid is a test automation framework which drives off the UI of Android native and hybrid applications (apps) and the mobile web. For a list of acceptable server settings, view the following articles: Email Client Configuration; Email client protocols and port numbers; For a list of alternate mail apps, view the 'See also' section at the bottom of this page. Most modern browsers have support for WebSockets in their JavaScript implementation. okhttp3:okhttp:3. NOTE: This is the translation of the original article I wrote in spanish for the wiki of Erlang Argentina. Here’s some sample Socket. The server uses the point-to-point tunneling protocol (PPTP. As a licensed user, you have access to them all!. Discover how to use WebSocket on Android with OkHttp by creating an application connected to the Echo WebSocket Server. io to implement a publish/subscribe feature in the application. With just a few lines of JavaScript, we have a full blown WebSockets server that leverages the Twitter Streaming API. You will also learn how to build a WebSocket to handle a chat application. Handshake WebSocket is an interesting to. This example is *very* simple in that it will create an SSL socket for accepting a single connection. SignalR is a popular ASP. Bluetooth server component. We will use PHP to build the server. IO_TIMEOUT_MS and is the timeout as a String in milliseconds. The goal of Simple is to bring simplicity, scalability, and performance to server side Java. Through the WebSocket. 1) If possible then how to implement it for a Android Application. Creating Node. Socket wraps the WebSocket API in an API consistent with Dojo and provides a long-polling alternative if the client doesn't support WebSocket. websocket nodejs serve rclient browser Web Sockets are probably in use more around you now than you think, most things with real-time interactions are most probably running through these little gems. Browser client in HTML and JavaScript. Learn more. js As shown in Figure 9, the node. For one, Android is REST- friendly which means that it can live in a simple stateless architecture that generally runs over HTTP. I have hosted it in 10. Click the tutorial link to open up a project directly in the App Inventor environment with the tutorial in the sidebar. The proxy server must allow “CONNECT” method to websocket port. About the site. Extract the Android Media Server Enterprise Edition and start the server with start. SignalR is well-known by. The WebSocket. Nothing new here, apart from the startWebSocket function. For a detailed tutorial on how to install the libraries and how to get started using them, please consult this previous. Cross Platform C#. Minecraft Server List is showcasing some of the best Minecraft Servers in the world to play on online. Like you should know, WebSocket is a computer communications protocol, providing full-duplex communication channels over a single TCP connection. Accomplish in 10 lines what would otherwise take 1000, thanks to an integrated JavaScript stack that extends from the database to the end user's screen. Android Building Group Chat App using Sockets) and now its working for multiple groups also. WebSocket++ is an open source (BSD license) header only C++ library that impliments RFC6455 The WebSocket Protocol. Thanks to that we can call the on function on it and listen to the connection event for upcoming connections. In this tutorial we are going to build a simple chat app based on WebSockets with socket. Find the best free Android games, utilities, antivirus and applications at CNET Download. Client technologies. You can accept L2TP/IPsec VPN Protocol on VPN Server. Tweet @twilio to let us know what you think. ws4py is a Python package implementing the WebSocket protocol as defined in RFC 6455. In a previous post, I’ve used Server Sent Events to create a monitoring dashboard. Install TeamViewer Host on an unlimited number of computers and devices. I'm using XAMPP on Windows 7 to run the PHP server locally. Eclipse Jetty provides a Web server and javax. Server will replay to the query. This website uses cookies to ensure you get the best experience on our website. Handshake WebSocket is an interesting to. Get code samples for mapping, visualization, and spatial analysis (Available on GitHub). WebSocket is a computer communications protocol, providing full-duplex communication channels over a single TCP connection. The WebSocket. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed again by our moderators if they are either implemented or considered invalid/off-topic. With the C++ REST SDK 2. From Google Play, if your device supports it (recommended) 2. CalendarAlerts. Most small LEDs only need a small resistor, around 200-500 ohms. This trick works on Windows 7, 8, and 10. MQTT Client sample. js tutorial, Alex Banks will explain how WebSockets work and. This tutorial assumes you are familiar with; PHP. Authentication Over WebSocket. The primary focus of the project is to provide a truly embeddable Java based HTTP and WebSocket engine capable of handling enormous loads. Currently I am using it for an Android device and I am having issues with it. The "hello world" of WebSocket apps. And, with so much innovation and progress that Android has recently made, it is one of the…. Note: The resistor you need can be different from what we use depending on the type of LED you use. This allows for the server to notify the client at any time instead of the client polling on a regular interval. Now without wasting any time, we start building our application. Light, clean, and free. The objective of this post is to explain how to create a Websocket server on the ESP32, using the Arduino core as programming framework. cd /path/to/ant-media-server. Python is a computer programming language. io to implement a publish/subscribe feature in the application. Make your changes and simply hit refresh!. Introduction. The new instance of Chat class then wraps the I/O Server class. Web Dashboard to monitor devices Quick open URLs in Android GPS-based location tracking Remote screenshot Screen recording Linux terminal access List installed packages through a Rest API Direct access to your device by nickname (https://webkey. 0' Don’t forget to add the Internet permission in your Android manifest since the application will use the network to create a WebSocket connection to the Echo WebSocket server. Another requirement for this tutorial is knowledge of pyenv and virtualenv. ; Achtung: Die Webseite unterstützt 5 Sprachen, klicken Sie auf die Flagge rechts oben um die Sprache zu wechseln. Bluetooth server component. SignalR also. The following describes how to add an email account on a Samsung Galaxy S5 using the Android stock Gmail app. Cisco routers or other vendor's L2TPv3 or EtherIP comatible router can also connect to your SoftEther VPN Server. I’ve tried two of them:. The life cycle of a WebSocket is easy to understand as well: Client sends the Server a handshake request in the form of a HTTP upgrade header with data about the WebSocket it’s attempting to connect to. 8 based on 18 Reviews "It is an best place for beginners". Learn to use WebSockets on Android with OkHttp the network to create a WebSocket connection to the Echo WebSocket server. OpenShift is an open source container application platform by Red Hat based on top of Docker containers and the Kubernetes container cluster manager for enterprise app development and deployment. These terms refer to the two processes which will be communicating with each other. This website uses cookies to ensure you get the best experience on our website. WebSockets" classes to implement it. Web Dashboard to monitor devices Quick open URLs in Android GPS-based location tracking Remote screenshot Screen recording Linux terminal access List installed packages through a Rest API Direct access to your device by nickname (https://webkey. Tiny Java Web Server and Servlet Container. You can do it in any server-side language, but to keep things simple and more understandable, I chose Microsoft's language. For a detailed tutorial on how to install the libraries and how to get started using them, please consult this previous. Supports Windows, Mac, and Linux. For more information on applying secure networking principles, see Android's networking security tips. For implementation of Client we will be extending AsyncTask. About the site. NET websocket client implementation. Take a look in the package. A WebSocket server is an application listening on any port of a TCP server that follows a specific protocol, simple as that. Through the WebSocket. Websockets is a new feature available in browsers as a part of the Html5 specs that allows javascript clients to open bi directional socket connections to a server. To start your Node server, simply open a command prompt and type: node server. Websocket Server: there is an extensive tutorial available on the SignalR overview website. For rooted devices. The underlying classes are implemented using the Java ServerSocketChannel and SocketChannel classes, which allows for a non-blocking event-driven model (similar to the WebSocket API for web browsers). We will build a simple server which echoes back everything we send to it. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: