January 2026
Intermediate to advanced
674 pages
15h 30m
English
Content preview from Rust Web Programming - Third Edition
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11
Communicating Between Servers
At this point in the book, we have two servers, which are the authentication server and the to-do server. However, they are not talking to each other yet. In microservices, our servers must be able to send messages to each other. For our system, we must get our to-do server making requests to our authentication server. This request checks that the user is valid before we perform a database transaction on to-do items, as these items are related to the user ID passed in the request for the database transaction. To achieve this, the chapter will cover the following:
- Getting users from auth with the unique ID
- Making auth accessible to other servers
- Tethering users to to-do items
- Testing our server-to-server communication ...
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