Successful APIs always get changed – that’s why you need a lifecycle approach to managing API evolution & versioning. I have covered the topic on the NordicAPIs Blog. The blog post covers: The dilemma we are in with the evolution
Learn how to protect your RESTful APIs. In this week’s episode, I tell you all the collected API Security best practices. Don’t miss any upcoming episode and subscribe to the API-University channel on youtube. Learn about security and best practices
Researching architectural styles for APIs? gRPC is an API style that follows the remote procedure pattern and allows for high-performance implementations. It follows the remote procedure pattern. If you are researching which architectural style to apply, and you start on
The REST constraints tell us to design APIs according to HATEAOS (Hypertext as the Engine of Application State). The Richardson Maturity Model rates APIs according to the fulfillment of these constraints and assigns the highest rating (level 3) to the
Not every service that is exposed over HTTP is compliant with the REST constraints. Sometimes one can find services, which are advertised as being RESTful, but in reality, they follow the RPC style. In fact, there may even be a
AWS AppSync is a fully-managed serverless GraphQL infrastructure. Because it runs on a serverless, managed infrastructure, it scales automatically and does not require any manual installation nor any maintenance. Thus, AppSync allows us to get started quickly without any impediments.
There are two essential concepts for integration today: APIs and events. APIs allow for reading and writing data, calling functionality and starting processes. APIs connect us with actuators in the digital world that enable us to do and change things.
GraphQL queries consist of one or more patterns which are matched against the big graph containing all the data on the server. The patterns describe a subgraph of the big graph and is used to search for the relevant data in the
Let’s have a look at the AppSync architecture. In the figure below we have depicted such a high-level solution architecture for an app, an AppSync API and AWS data sources. On the left-hand side we have the clients connecting to
To read data with GraphQL, the client uses the query method. In the pattern of this query, the client has to explicitly specify all the object and fields it is interested in. As a result of the query, the client