Domain-specific protocol

In a microservice architecture, we can use a domain-specific protocol for inter-service communication. There are various domain-specific protocols available, which include the following:

• Email protocols, such as SMTP and IMAP
• Media streaming protocols, such as RTMP, HLS, and HDS

You can choose which protocol is most appropriate for you depending on your application. For example, REST communication uses the HTTP/HTTPS protocol.