Database-to-Database, Then to API Instead of Directly to API
Focusing on database-to-database connections and then focusing on API connections — instead of just API connections — can ease a lot of DBA anxiety.
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I am working with a team to expose a database as an API. With projects like this, there can be a lot of anxiety in exposing a database directly as an API. Security is the first one, but in my experience, most of the time security is just cover for anxiety about a messy backend. The group I’m working with has been managing the same database for over a decade, adding on clients, and making the magic happen via a whole bunch of databases and table kung fu. Keeping this monster up and running has been priority number one, and evolving, decentralizing, or decoupling has never quite been a priority.
The database team has learned the hard way, and they have the resources to keep things up and running but never seem to have them when it comes to refactoring it and thinking differently — let alone tackling the delivery of a web API on top of things. There will need to be a significant amount of education and training around REST and around doing APIs properly before we can move forward — something there really isn’t a lot of time or interest in doing. To help bridge the gap, I am suggesting that we do an entirely new API with its own database and that we focus on database-to-database communication since that is what the team knows. We can launch an Amazon RDS instance with an EC2 instance running the API and the database team can work directly with RDS (MySQL), which they are already familiar with.
We can have a dedicated API team handle the new API and database, and the existing team can handle the syncing from database to database. This also keeps the messy, aggregate, overworked databases out of reach of the new API. We get an API. The database team anxiety levels are lowered. It balances things out a little. Sure, there will still be some work between databases, but the API can be a fresh start, and it won’t be burdened by the legacy. The database-to-database connection can carry this load. Maybe once this pilot is done, the database team will feel a little better about doing APIs and be a little more involved with the next one.
I am going to pitch this approach in coming weeks. I’m not sure if it will be well-received, but I’m hoping it will help bridge the new to the old a little bit. I know the database team likes to keep things centralized, which is one reason they have this legacy beast, so there might be some more selling to occur on that front. Doing APIs isn’t always about the technical. It is often about the politics of how things get done on the ground. Many organizations have messy databases, which they worry will make them look bad when any of it is exposed as an API. I get it — we are all self-conscious about the way our backends look. However, sometimes, we still need to find ways to move things forward and find a compromise. I hope this database-to-database, then to API does the trick.
Published at DZone with permission of Kin Lane, DZone MVB. See the original article here.
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