QuestionsChannel.publish('question', $question. * Publish question to the Ably channel so that the queue worker receives it via queues */ ![]() cant wait to see what you guys will do with. Now let’s hook up the publishing of Wolfram questions to an Ably channel: var questionsChannel = ('wolfram:questions') Check this out 1 simple get data from api later I threw that little display together to have a quick look. At this point, run your server again with node server.js and visiting you should see the status element change to “Connecting to Ably…” whilst a connection is established, and the status become empty once the connection is established. The Ably Realtime client will now automatically obtain a token request from the provided authUrl and then connect to Ably using that token request for authentication. This will ensure that the basic authentication scheme is used, which is almost always the right choice for your own trusted servers where risk of compromise of your API key credentials is low.Īdd the following to a file named server.js to instantiate the Ably library inside your Node.js server: var Ably = require('ably') The server client library must be instantiated with the private API key you copied in Step 1. The NPM module can be installed as follows: npm install ably To start using Ably on your Node.js server, you first need to install the NPM module. Copy the Root API key and store it somewhere.The default “Root” API key has full access to capabilities and channels. In the API keys tab, choose an API key to use for this tutorial.Select an application from “Your apps” in the dashboard.To use an existing application and API key: Copy your private API key and store it somewhere.To create a new application and generate an API key: You can either create a new application for this tutorial, or use an existing one. API keys exist within the context of an Ably application and each application can have multiple API keys so that you can assign different capabilities and manage access to channels and queues. Sign up for a free account if you don’t already have one.Īccess to the Ably global messaging platform requires an API key for authentication. To follow this tutorial, you will need an Ably account. Step 1 – Create your Ably app and API key If you want to skip ahead and try out the completed tutorial now, install it in one-click on Heroku for free: The diagram may look complicated, but fortunately getting the app up and running with Ably is not! Let’s get started. The following diagram depicts the architecture for this tutorial: Subscribe to answers published from the workers in the web app using a realtime pub/sub channel.Set up a worker server to consume the messages (questions) from the message queue, communicate with the Wolfram Alpha API to get the answer, and publish the answer as a message back to the client using the REST API. ![]() Publish questions from a Realtime browser client to a channel, which are automatically republished by Ably to the provisioned message queue.Create a simple Express.js web server to serve up the web app and issue authentication tokens for the Realtime browser client.Provision an Ably Queue and set up a queue rule to republish messages from a channel into the queue.In this tutorial we will show you how to: However, you can easily make your own setup with the instructions below.Īlso please note that Wolfram Alpha needs to think about your query, so it might take a while to fetch your answer.Building a Q/A app using the Wolfram Alpha API and AMQP message queuesĪbly Queues are traditional message queues that provide a reliable and straightforward mechanism for customers to consume, process, store, augment or reroute data from our realtime platform efficiently by your servers. We can’t make any guarantees about the availability of this Wolfram Alpha tech demo since there are limits to the number of API requests etc. “wolfram temperature copenhagen” to 1204. If you just want to try it out, and you got a Danish mobile subscription, text wolfram, followed by your question to 1204. What follows is a quick tutorial on how to do this yourself, explaining the overall steps along the way for a better understanding of the tech involved. try this : import wolframplha appid 'your app id' client wolframalpha.Client (appid) res client.query (input) answer next (res.results).text to make sure wolramalpha gives answer in text and not in graph and all print (answer) Share. Wolfram Alpha is an online service that answers factual queries directly by computing the answer from externally sourced “curated data”. We’ve just released ‘receiving SMS messages’ as a beta function and what better way to celebrate the launch of this often requested feature than by doing a small tech demo?įor this demo I will present a small API project that allow us to receive a question via SMS, then query Wolfram Alpha for a reply and then respond via SMS.
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