Configure and demo API

src/main/java/io/hardingadonis/saledock/api/v1/DemoAPI.java

@@ -0,0 +1,16 @@
+package io.hardingadonis.saledock.api.v1;
+
+import io.hardingadonis.saledock.model.*;
+import io.hardingadonis.saledock.utils.*;
+import jakarta.ws.rs.*;
+import jakarta.ws.rs.core.*;
+
+@Path("v1/demo")
+public class DemoAPI {
+
+    @GET
+    @Produces(MediaType.APPLICATION_JSON)
+    public Product getProduct() {
+        return Singleton.productDAO.getByID(1).get();
+    }
+}

src/main/java/io/hardingadonis/saledock/config/SaleDockApplication.java

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+package io.hardingadonis.saledock.config;
+
+import jakarta.ws.rs.*;
+import org.glassfish.jersey.server.*;
+
+@ApplicationPath("api")
+public class SaleDockApplication extends ResourceConfig {
+
+    public SaleDockApplication() {
+        packages("io.hardingadonis.saledock.api");
+    }
+}