Low-level docs for v3 model are now in place

5/6 of the way there!

datamodel/low/v3/examples_test.go

@@ -0,0 +1,35 @@
+// Copyright 2022 Princess B33f Heavy Industries / Dave Shanley
+// SPDX-License-Identifier: MIT
+
+package v3
+
+import (
+	"fmt"
+	"github.com/pb33f/libopenapi/datamodel"
+	"io/ioutil"
+)
+
+func Example_createLowDocument() {
+	// How to create a low-level OpenAPI 3 Document
+
+	// load petstore into bytes
+	petstoreBytes, _ := ioutil.ReadFile("../../../test_specs/petstorev3.json")
+
+	// read in specification
+	info, _ := datamodel.ExtractSpecInfo(petstoreBytes)
+
+	// build low-level document model
+	document, errors := CreateDocument(info)
+
+	// if something went wrong, a slice of errors is returned
+	if len(errors) > 0 {
+		for i := range errors {
+			fmt.Printf("error: %s\n", errors[i].Error())
+		}
+		panic("cannot build document")
+	}
+
+	// print out email address from the info > contact object.
+	fmt.Print(document.Info.Value.Contact.Value.Email.Value)
+	// Output: apiteam@swagger.io
+}