Designing robust software means planning for every eventuality. To create a world-class product using Communications REST v2, you need to be prepared for when things go wrong - and one of the problems you may face is an outage. Fortunately, there are ways to write your software to gracefully handle an outage.

Types of connection issues:

Temporary Outage: Your connection has gone offline and you need to be able to process transactions for a short period of time until the connection is restored

Intermittent Connection: Your connection works most of the time, but its behavior is unpredictable and occasionally drops unexpectedly

Unable to Reach REST v2: Your connection is up, but you are unable to reach REST v2 because of a routing problem, a denial-of-service attack on an Internet service provider, or a temporary outage of REST v2

These types of outages have similar characteristics, so it’s straightforward to design a single process to handle all of them. Here is how we handle a broken connection:

Detect the dropped connection and prevent a crash

Retry the transaction

Recover data using the Commit/Uncommit functionality

Reconcile transactions after the outage

As a cloud-based Software-as-a-Service provider, Avalara understands the need to ensure that our services are available continuously and respond in a timely manner. Check out the Avalara Server Status page:

Subscribe to Updates for the services you use - see Avalara Communications for REST v2 status

Shows the current availability of all Avalara services

Displays graphs detailing current response times for a number of Avalara services

Provides a historical view of availability

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