go:embed loader.ReadFromURIFunc example (#319)

Author: fenollp

go.mod

@@ -1,6 +1,6 @@
 module github.com/getkin/kin-openapi
 
-go 1.14
+go 1.16
 
 require (
 	github.com/ghodss/yaml v1.0.0

openapi3/load_with_go_embed_test.go

@@ -0,0 +1,32 @@
+package openapi3_test
+
+import (
+	"embed"
+	"fmt"
+	"net/url"
+
+	"github.com/getkin/kin-openapi/openapi3"
+)
+
+//go:embed testdata/recursiveRef/*
+var fs embed.FS
+
+func Example() {
+	loader := openapi3.NewSwaggerLoader()
+	loader.IsExternalRefsAllowed = true
+	loader.ReadFromURIFunc = func(loader *openapi3.SwaggerLoader, uri *url.URL) ([]byte, error) {
+		return fs.ReadFile(uri.Path)
+	}
+
+	doc, err := loader.LoadSwaggerFromFile("testdata/recursiveRef/openapi.yml")
+	if err != nil {
+		panic(err)
+	}
+
+	if err = doc.Validate(loader.Context); err != nil {
+		panic(err)
+	}
+
+	fmt.Println(doc.Paths["/foo"].Get.Responses["200"].Value.Content["application/json"].Schema.Value.Properties["foo"].Value.Properties["bar"].Value.Type)
+	// Output: array
+}