Complete package for generating ocds structs (with extensions) in golang

example/main.go

@@ -0,0 +1,32 @@
+// Command myapp shows three packages, each with its own extension set, used side by side.
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+
+	"example.com/myapp/internal/budgets"
+	"example.com/myapp/internal/tenders"
+	"git.avsdev.uk/Go/go-ocds/profiles/uk"
+)
+
+const data = `{"ocid":"ocds-1","id":"r1","date":"2026-09-01T00:00:00Z","tag":["tender"],"initiationType":"tender",
+"planning":{"budget":{"id":"B1","budgetBreakdown":[{"id":"BB1","amount":{"amount":500,"currency":"GBP"}}]}},
+"tender":{"id":"T1","lots":[{"id":"L1","suitability":{"sme":true}}]}}`
+
+func main() {
+	// The same JSON decodes into each package; each one sees only the fields
+	// its extensions define (other fields are ignored on decode).
+	var t tenders.Release
+	var b budgets.Release
+	var u uk.Release
+	for _, v := range []any{&t, &b, &u} {
+		if err := json.Unmarshal([]byte(data), v); err != nil {
+			log.Fatal(err)
+		}
+	}
+	fmt.Println("tenders: lot L1 SME-suitable =", *t.Tender.Lots[0].Suitability.SME)
+	fmt.Println("budgets: breakdown amount =", *b.Planning.Budget.BudgetBreakdown[0].Amount.Amount)
+	fmt.Println("uk:      lots =", len(u.Tender.Lots))
+}