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(docs) Update service docs

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Viktor Lofgren 2024-02-28 15:19:31 +01:00
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code/common/service/readme.md
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@ -1,13 +1,17 @@
# Service # Service
Contains the base classes for the services. This is where port configuration, Contains the base classes for the services. This is where port configuration,
and common endpoints are set up. and common endpoints are set up. The service base class is additionally responsible for
registering the service with the service registry, and announcing its liveness.
## Creating a new Service ## Creating a new Service
The minimal service needs a `MainClass` and a `Service` class. The minimal service needs a `MainClass` and a `Service` class.
For proper initiation, the main class should look like this: For proper initiation, the main class should look like the below. It will
create a Guice injector, and then create an instance of the service, and take
care of loading configuration properties and setting up loggers in a sane
way.
```java ```java
public class FoobarMain extends MainClass { public class FoobarMain extends MainClass {
@ -41,12 +45,12 @@ public class FoobarService extends Service {
public FoobarService(BaseServiceParams params) { public FoobarService(BaseServiceParams params) {
super(params, List.of(/* grpc services */)); super(params, List.of(/* grpc services */));
// set up Spark endpoints here // set up any Spark endpoints here
} }
} }
``` ```
Further the new service needs to be added to the `ServiceId` enum in [service-discovery](../service-discovery). The service should also be given a canonical name in the `ServiceId` enum.
## Central Classes ## Central Classes