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

profiles/findtender/extensions.json

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+{
+  "releaseSchema": "https://raw.githubusercontent.com/open-contracting/standard/1.1/schema/release-schema.json",
+  "releasePackageSchema": "https://raw.githubusercontent.com/open-contracting/standard/1.1/schema/release-package-schema.json",
+  "extensions": [
+    "https://standard.open-contracting.org/profiles/eu/latest/en/extension.json",
+    "https://raw.githubusercontent.com/open-contracting-extensions/ocds_amendment_rationale_classifications_extension/master/extension.json",
+    "https://raw.githubusercontent.com/open-contracting-extensions/ocds_budget_breakdown_extension/master/extension.json",
+    "https://raw.githubusercontent.com/open-contracting-extensions/ocds_contract_completion_extension/master/extension.json",
+    "https://raw.githubusercontent.com/open-contracting-extensions/ocds_documentation_extension/master/extension.json",
+    "https://raw.githubusercontent.com/open-contracting-extensions/ocds_pagination_extension/master/extension.json",
+    "https://raw.githubusercontent.com/open-contracting-extensions/ocds_suitability_extension/master/extension.json",
+    "https://raw.githubusercontent.com/portaledcahn/ocds_Links_extension/main/extension.json",
+    "https://raw.githubusercontent.com/cabinetoffice/ocds_uk_extension/main/extension.json",
+    "https://raw.githubusercontent.com/open-contracting-extensions/ocds_performance_failures_extension/master/extension.json"
+  ]
+}

profiles/findtender/generate.go

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+// Package full contains OCDS 1.1 types with the full extension set applied:
+// the EU profile, UK extension, and the other extensions in extensions.json.
+package findtender
+
+//go:generate go run git.avsdev.uk/Go/go-ocds/cmd/ocdsgen generate -c extensions.json -o ocds_gen.go -p findtender

profiles/findtender/ocds_test.go

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+package findtender
+
+import (
+	"encoding/json"
+	"os"
+	"reflect"
+	"testing"
+)
+
+// TestRoundTrip decodes a release package that uses several extensions and
+// checks that re-encoding it loses nothing. Numeric IDs are the one expected
+// change: ID always encodes as a string.
+func TestRoundTrip(t *testing.T) {
+	in, err := os.ReadFile("testdata/release-package.json")
+	if err != nil {
+		t.Fatal(err)
+	}
+	var pkg ReleasePackage
+	if err := json.Unmarshal(in, &pkg); err != nil {
+		t.Fatal(err)
+	}
+
+	r := pkg.Releases[0]
+	if got := r.Tender.Items[0].ID; got != "1" {
+		t.Errorf("numeric item id: got %q, want \"1\"", got)
+	}
+	if !*r.Tender.Lots[0].Suitability.SME {
+		t.Error("lot suitability lost")
+	}
+	if got := r.Contracts[0].Implementation.PerformanceFailures[0].ID; got != "PF1" {
+		t.Errorf("performance failure: got %q", got)
+	}
+
+	out, err := json.Marshal(pkg)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var want, got any
+	json.Unmarshal(in, &want)
+	json.Unmarshal(out, &got)
+	// Normalise the one numeric ID in the fixture before comparing.
+	want.(map[string]any)["releases"].([]any)[0].(map[string]any)["tender"].(map[string]any)["items"].([]any)[0].(map[string]any)["id"] = "1"
+	if !reflect.DeepEqual(want, got) {
+		t.Fatalf("round trip changed the data:\n%s", out)
+	}
+}

profiles/findtender/testdata/release-package.json

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+{
+  "uri": "https://example.com/packages/1.json",
+  "version": "1.1",
+  "publishedDate": "2026-09-01T00:00:00Z",
+  "publisher": {"name": "Example Publisher"},
+  "links": {"next": "https://example.com/packages/2.json"},
+  "releases": [
+    {
+      "ocid": "ocds-abc123-0001",
+      "id": "0001-award",
+      "date": "2026-09-01T09:00:00Z",
+      "tag": ["award", "contract"],
+      "initiationType": "tender",
+      "links": [{"rel": "self", "href": "https://example.com/releases/0001"}],
+      "planning": {
+        "budget": {
+          "id": "B1",
+          "budgetBreakdown": [{"id": "BB1", "amount": {"amount": 1000000, "currency": "EUR"}}]
+        }
+      },
+      "tender": {
+        "id": "T1",
+        "title": "Road maintenance",
+        "lots": [{"id": "L1", "title": "North", "suitability": {"sme": true}}],
+        "items": [{"id": 1, "description": "Resurfacing", "relatedLot": "L1"}],
+        "documents": [{"id": "D1", "relatedLots": ["L1"], "pageStart": "4", "pageEnd": "9"}]
+      },
+      "awards": [{"id": "A1", "relatedLots": ["L1"], "status": "active"}],
+      "contracts": [{
+        "id": "C1",
+        "awardID": "A1",
+        "amendments": [{"id": "AM1", "rationaleClassifications": [{"scheme": "eu-modification-justification", "id": "add-wss"}]}],
+        "implementation": {
+          "endDate": "2027-06-30T00:00:00Z",
+          "finalValue": {"amount": 950000, "currency": "EUR"},
+          "performanceFailures": [{"id": "PF1", "description": "Late delivery"}]
+        }
+      }]
+    }
+  ]
+}