Include spec version in generated file.

README.md

@@ -34,6 +34,7 @@ restful-react is **very well tested, production ready** and powers all of our pr
   - [Code Generation from OpenAPI / Swagger specs](#code-generation-from-openapi--swagger-specs)
     - [Usage](#usage)
     - [Validation of the OpenAPI specification](#validation-of-the-openapi-specification)
+    - [API Versioning](#api-versioning)
     - [Import from URL](#import-from-url)
     - [Import from GitHub](#import-from-github)
     - [Transforming an Original Spec](#transforming-an-original-spec)
@@ -631,6 +632,10 @@ To enforce the best quality as possible of specification, we have integrated the
 
 To activate this, add a `--validation` flag to your `restful-react` call.
 
+#### API Versioning
+
+The generated file will include an exported constant `SPEC_VERSION` that will contain to the OpenAPI `info.version` property's value.
+
 #### Import from URL
 
 Adding the `--url` flag to `restful-react import` instead of using the `--file` flag will attempt to fetch the spec from that endpoint.

src/scripts/import-open-api.ts

@@ -605,6 +605,13 @@ export const resolveDiscriminator = (specs: OpenAPIObject) => {
   }
 };
 
+/**
+ * Add the version of the spec
+ *
+ * @param version
+ */
+export const addVersionMetadata = (version: string) => `export const SPEC_VERSION = "${version}"; \n`;
+
 /**
  * Extract all types from #/components/schemas
  *
@@ -816,6 +823,7 @@ const importOpenApi = async ({
 
   let output = "";
 
+  output += addVersionMetadata(specs.info.version);
   output += generateSchemasDefinition(specs.components && specs.components.schemas);
   output += generateRequestBodiesDefinition(specs.components && specs.components.requestBodies);
   output += generateResponsesDefinition(specs.components && specs.components.responses);

src/scripts/tests/__snapshots__/import-open-api.test.ts.snap

@@ -26,7 +26,8 @@ import { Get, GetProps, useGet, UseGetProps, Mutate, MutateProps, useMutate, Use
 
     const encode = encodingTagFactory(encodingFn);
 
-    /**
+    export const SPEC_VERSION = \\"1.0.0\\"; 
+/**
  * A pet.
  */
 export type Pet = NewPet & {
@@ -225,6 +226,7 @@ export const useUpdatePet = ({id, ...props}: UseUpdatePetProps) => useMutate<Pet
 exports[`scripts/import-open-api should parse correctly petstore-expanded.yaml (without react component) 1`] = `
 "/* Generated by restful-react */
 
+export const SPEC_VERSION = \\"1.0.0\\"; 
 /**
  * A pet.
  */
@@ -315,6 +317,7 @@ exports[`scripts/import-open-api should parse correctly petstore-expanded.yaml 1
 
 import React from \\"react\\";
 import { Get, GetProps, useGet, UseGetProps, Mutate, MutateProps, useMutate, UseMutateProps } from \\"restful-react\\";
+export const SPEC_VERSION = \\"1.0.0\\"; 
 /**
  * A pet.
  */