Invocation style
When integrating two bounded contexts that are running in distinct processes, there are two ways to consummate interactions: synchronous and asynchronous.
Synchronous invocation
The client blocks until the server provides a response. Optionally, implementations can choose to wait for an amount of time for the invoked operation to complete before timing out. An example of such an interaction is a blocking HTTP call made to start a new LC application like so:
Figure 12.4 – Synchronous invocation
When the call returns successfully, the client is sure that their request to create a new LC application has worked. If the server is slow to respond, it can result in a performance bottleneck, especially in high-scale scenarios. To cope with this, the client and the server may agree on a response time SLO for that interaction. The client can choose to wait for a response from the server for the agreed amount of time after which the client...
