5 Interservice communication
This chapter covers
- Understanding the internals of gRPC client-server connection strategies
- How to depend on a client module to access a specific service
- Tips and tricks for client configuration of a particular service
- Handling errors
In the previous chapter, we implemented a gRPC service for the Order service. In this chapter, we will implement a gRPC client for that service to show how underlying communication works in microservice architecture. You can see the high-level picture of interservice communication in figure 5.1.
Figure 5.1 The Order service uses a Payment service gRPC stub.
In previous chapters, we ...
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