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Address Book App Quickstart

Let’s take 5 minutes to create a stateful-serverless backend for a simple Address Book. It's going to run globally distributed with local read-write latencies around 50ms.

We are going to walk through 4 steps:

  • Create a collection and add some data to it.
  • Query that data.
  • Save the query (A saved query is called a Query Worker).
  • Execute the Query Worker!

First things first, if you don't already have a Macrometa account go create a free one and mosey on back.

Step 1: Create a Collection

Let’s start by clicking the COLLECTIONS tab in the left nav and then New Collection on the right. Select the Document option, give it the name addresses, and save it.

Note: The collection addresses that you just created is now distributed to every location in the fabric!

create-collection

Step 2: Add some data to your new collection and query it

Now, click the QUERIES tab in the left nav to open the C8QL query editor. Copy and paste the query below into the editor and click Run Query a couple times.

INSERT {"firstname": "Captain",
        "lastname": "Nemo",
        "email": "nemo@nautilus.com",
        "zipcode": 94608 }
   INTO addresses

Your Query Result will be empty brackets, but if you click on Profile button you can checkout what just happened along with some performance details. Your data was just written to the location you're currently logged into and replicated across all of the nodes in your fabric.

Now, let's query the data you just added to your collection. Copy the below query and replace the INSERT query currently in the editor with it.

FOR docs IN addresses RETURN docs 

You should see the data you just saved returned.

Ok, now we are going to save this query. Saving it will turn it into a Query Worker.

Step 3: Save the Query

Click the Save Query button and name the saved query getAddresses

Now, in around 50ms, you have a globally distributed stateful-serverless endpoint.

Step 4: Execute the Query Worker

Click on the API REFERENCE tab on the left and scroll down and to Query as API.

Select the second POST option to Execute restQL by name. Click on Try Out and add getAddresses to path under name. Now click Execute down at the bottom and you'll see that a cURL command and REST endpoint is generated along with the result of the query.

create-collection

Now pop that cURL command into your terminal to see it in action!

create-collection

Next Steps

Read though our Essentials guide.