Minor docs updates (openapi-ts#1641)

Author: drwpow

docs/6.x/advanced.md

@@ -85,9 +85,9 @@ And the magic that produces this would live in a `test/utils.ts` file that can b
 <details>
 <summary>📄 <strong>test/utils.ts</strong></summary>
 
-::: code-group [test/utils.ts]
+::: code-group
 
-```ts
+```ts [test/utils.ts]
 import type { paths } from "./api/v1"; // generated by openapi-typescript
 
 // Settings
@@ -123,7 +123,7 @@ export function mockResponses(responses: {
   fetchMock.mockResponse((req) => {
     const mockedPath = findPath(
       req.url.replace(BASE_URL, ""),
-      Object.keys(responses),
+      Object.keys(responses)
     )!;
     // note: we get lazy with the types here, because the inference is bad anyway and this has a `void` return signature. The important bit is the parameter signature.
     if (!mockedPath || (!responses as any)[mockedPath])
@@ -142,11 +142,11 @@ export function mockResponses(responses: {
 // helper function that matches a realistic URL (/users/123) to an OpenAPI path (/users/{user_id}
 export function findPath(
   actual: string,
-  testPaths: string[],
+  testPaths: string[]
 ): string | undefined {
   const url = new URL(
     actual,
-    actual.startsWith("http") ? undefined : "http://testapi.com",
+    actual.startsWith("http") ? undefined : "http://testapi.com"
   );
   const actualParts = url.pathname.split("/");
   for (const p of testPaths) {

docs/advanced.md

@@ -29,7 +29,9 @@ Note that debug messages will be suppressed if the output is `stdout`.
 
 Example:
 
-```yaml
+::: code-group
+
+```yaml [my-openapi-3-schema.yaml]
 ErrorCode:
   type: integer
   format: int32
@@ -47,9 +49,13 @@ ErrorCode:
     - "Something went wrong"
 ```
 
+:::
+
 Will result in:
 
-```ts
+::: code-group
+
+```ts [my-openapi-3-schema.d.ts]
 enum ErrorCode {
   // User is not authorized
   Unauthorized = 100
@@ -60,6 +66,8 @@ enum ErrorCode {
 }
 ```
 
+:::
+
 Alternatively you can use `x-enumNames` and `x-enumDescriptions` ([NSwag/NJsonSchema](https://github.com/RicoSuter/NJsonSchema/wiki/Enums#enum-names-and-descriptions)).
 
 ## Styleguide
@@ -274,7 +282,9 @@ OpenAPI’s composition tools (`oneOf`/`anyOf`/`allOf`) are powerful tools for r
 
 #### ❌ Bad
 
-```yaml
+::: code-group
+
+```yaml [my-openapi-3-schema.yaml]
 Pet:
   type: object
   properties:
@@ -296,19 +306,27 @@ Pet:
     - $ref: "#/components/schemas/Turtle"
 ```
 
+:::
+
 This generates the following type which mixes both TypeScript unions and intersections. While this is valid TypeScript, it’s complex, and inference may not work as you intended. But the biggest offense is TypeScript can’t discriminate via the `type` property:
 
-```ts
+::: code-group
+
+```ts [my-openapi-3-schema.d.ts]
   Pet: ({
     /** @enum {string} */
     type?: "cat" | "dog" | "rabbit" | "snake" | "turtle";
     name?: string;
   }) & (components["schemas"]["Cat"] | components["schemas"]["Dog"] | components["schemas"]["Rabbit"] | components["schemas"]["Snake"] | components["schemas"]["Turtle"]);
 ```
 
+:::
+
 #### ✅ Better
 
-```yaml
+::: code-group
+
+```yaml [my-openapi-3-schema.yaml]
 Pet:
   oneOf:
     - $ref: "#/components/schemas/Cat"
@@ -330,13 +348,19 @@ Cat:
       - cat
 ```
 
+:::
+
 The resulting generated types are not only simpler; TypeScript can now discriminate using `type` (notice `Cat` has `type` with a single enum value of `"cat"`).
 
-```ts
+::: code-group
+
+```ts [my-openapi-3-schema.d.ts]
 Pet: components["schemas"]["Cat"] | components["schemas"]["Dog"] | components["schemas"]["Rabbit"] | components["schemas"]["Snake"] | components["schemas"]["Turtle"];
 Cat: { type?: "cat"; } & components["schemas"]["PetCommonProperties"];
 ```
 
+:::
+
 _Note: you optionally could provide `discriminator.propertyName: "type"` on `Pet` ([docs](https://spec.openapis.org/oas/v3.1.0#discriminator-object)) to automatically generate the `type` key, but is less explicit._
 
 While the schema permits you to use composition in any way you like, it’s good to always take a look at the generated types and see if there’s a simpler way to express your unions & intersections. Limiting the use of `oneOf` is not the only way to do that, but often yields the greatest benefits.
@@ -345,7 +369,9 @@ While the schema permits you to use composition in any way you like, it’s good
 
 [JSONSchema $defs](https://json-schema.org/understanding-json-schema/structuring.html#defs) can be used to provide sub-schema definitions anywhere. However, these won’t always convert cleanly to TypeScript. For example, this works:
 
-```yaml
+::: code-group
+
+```yaml [my-openapi-3-schema.yaml]
 components:
   schemas:
     DefType:
@@ -360,9 +386,13 @@ components:
           $ref: "#/components/schemas/DefType/$defs/myDefType"
 ```
 
+:::
+
 This will transform into the following TypeScript:
 
-```ts
+::: code-group
+
+```ts [my-openapi-3-schema.d.ts]
 export interface components {
   schemas: {
     DefType: {
@@ -377,9 +407,13 @@ export interface components {
 }
 ```
 
+:::
+
 However, this won’t:
 
-```yaml
+::: code-group
+
+```yaml [my-openapi-3-schema.yaml]
 components:
   schemas:
     DefType:
@@ -393,9 +427,13 @@ components:
           $ref: "#/components/schemas/DefType/$defs/myDefType"
 ```
 
+:::
+
 Because it will transform into:
 
-```ts
+::: code-group
+
+```ts [my-openapi-3-schema.d.ts]
 export interface components {
   schemas: {
     DefType: string;
@@ -406,6 +444,8 @@ export interface components {
 }
 ```
 
+:::
+
 So be wary about where you define `$defs` as they may go missing in your final generated types.
 
 ::: tip

docs/cli.md

@@ -29,7 +29,9 @@ npx openapi-typescript https://petstore3.swagger.io/api/v3/openapi.yaml -o petst
 
 To transform multiple schemas, create a `redocly.yaml` file in the root of your project with [APIs defined](https://redocly.com/docs/cli/configuration/). Under `apis`, give each schema a unique name and optionally a version (the name doesn’t matter, so long as it’s unique). Set the `root` value to your schema’s entry point—this will act as the main input. For the output, set it with `x-openapi-ts.output`:
 
-```yaml
+::: code-group
+
+```yaml [redocly.yaml]
 apis:
   core@v2:
     root: ./openapi/openapi.yaml
@@ -41,6 +43,8 @@ apis:
       output: ./openapi/external.ts
 ```
 
+:::
+
 ::: tip
 
 This will preserve schemas 1:1 input:output. To bundle multiple schemas into one, use Redocly’s [bundle command](https://redocly.com/docs/resources/multi-file-definitions/#bundle)
@@ -73,7 +77,9 @@ You can read more about the Redoc’s configuration options [in their docs](http
 
 Authentication for non-public schemas is handled in your [Redocly config](https://redocly.com/docs/cli/configuration/#resolve-non-public-or-non-remote-urls). You can add headers and basic authentication like so:
 
-```yaml
+::: code-group
+
+```yaml [redocly.yaml]
 resolve:
   http:
     headers:
@@ -85,6 +91,8 @@ resolve:
         envVariable: SECRET_AUTH
 ```
 
+:::
+
 Refer to the [Redocly docs](https://redocly.com/docs/cli/configuration/#resolve-non-public-or-non-remote-urls) for additional options.
 
 ## Flags
@@ -113,30 +121,42 @@ The following flags are supported in the CLI:
 
 By default, your URLs are preserved exactly as-written in your schema:
 
-```ts
+::: code-group
+
+```ts [my-openapi-3-schema.d.ts]
 export interface paths {
   "/user/{user_id}": components["schemas"]["User"];
 }
 ```
 
+:::
+
 Which means your type lookups also have to match the exact URL:
 
-```ts
-import type { paths } from "./api/v1";
+::: code-group
+
+```ts [src/my-project.ts]
+import type { paths } from "./my-openapi-3-schema";
 
 const url = `/user/${id}`;
 type UserResponses = paths["/user/{user_id}"]["responses"];
 ```
 
+:::
+
 But when `--path-params-as-types` is enabled, you can take advantage of dynamic lookups like so:
 
-```ts
-import type { paths } from "./api/v1";
+::: code-group
+
+```ts [src/my-project.ts]
+import type { paths } from "./my-openapi-3-schema";
 
 const url = `/user/${id}`;
 type UserResponses = paths[url]["responses"]; // automatically matches `paths['/user/{user_id}']`
 ```
 
+:::
+
 Though this is a contrived example, you could use this feature to automatically infer typing based on the URL in a fetch client or in some other useful place in your application.
 
 _Thanks, [@Powell-v2](https://github.com/Powell-v2)!_
@@ -147,7 +167,9 @@ This option is useful for generating tuples if an array type specifies `minItems
 
 For example, given the following schema:
 
-```yaml
+::: code-group
+
+```yaml [my-openapi-3-schema.yaml]
 components:
   schemas:
     TupleType
@@ -158,17 +180,23 @@ components:
       maxItems: 2
 ```
 
+:::
+
 Enabling `--array-length` would change the typing like so:
 
-```diff
-  export interface components {
-    schemas: {
--     TupleType: string[];
-+     TupleType: [string] | [string, string];
-    };
-  }
+::: code-group
+
+```ts [my-openapi-3-schema.d.ts]
+export interface components {
+  schemas: {
+    TupleType: string[]; // [!code --]
+    TupleType: [string] | [string, string]; // [!code ++]
+  };
+}
 ```
 
+:::
+
 This results in more explicit typechecking of array lengths.
 
 _Note: this has a reasonable limit, so for example `maxItems: 100` would simply flatten back down to `string[];`_

docs/examples.md

@@ -26,9 +26,11 @@ A good fetch wrapper should **never use generics.** Generics require more typing
 
 After [generating your types using the CLI](/introduction), pass in the proper `paths` response for each endpoint:
 
-```ts
+::: code-group
+
+```ts [src/my-project.ts]
 import { Hono } from "hono";
-import { components, paths } from "./path/to/my/types";
+import { components, paths } from "./my-openapi-3-schema"; // generated by openapi-typescript
 
 const app = new Hono();
 
@@ -50,6 +52,8 @@ app.get("/users", async (ctx) => {
 export default app;
 ```
 
+:::
+
 ::: tip
 
 TypeChecking in server environments can be tricky, as you’re often querying databases and talking to other endpoints that TypeScript can’t introspect. But using generics will alert you of the obvious errors that TypeScript _can_ catch (and more things in your stack may have types than you realize!).
@@ -86,9 +90,9 @@ Let’s say we want to write our mocks in the following object structure, so we
 
 Using our generated types we can then infer **the correct data shape** for any given path + HTTP method + status code. An example test would look like this:
 
-::: code-group [my-test.test.ts]
+::: code-group
 
-```ts
+```ts [my-test.test.ts]
 import { mockResponses } from "../test/utils";
 
 describe("My API test", () => {
@@ -133,10 +137,10 @@ And the magic that produces this would live in a `test/utils.ts` file that can b
 <details>
 <summary>📄 <strong>test/utils.ts</strong></summary>
 
-::: code-group [test/utils.ts]
+::: code-group
 
-```ts
-import type { paths } from "./api/v1"; // generated by openapi-typescript
+```ts [test/utils.ts]
+import type { paths } from "./my-openapi-3-schema"; // generated by openapi-typescript
 
 // Settings
 // ⚠️ Important: change this! This prefixes all URLs
@@ -171,7 +175,7 @@ export function mockResponses(responses: {
   fetchMock.mockResponse((req) => {
     const mockedPath = findPath(
       req.url.replace(BASE_URL, ""),
-      Object.keys(responses),
+      Object.keys(responses)
     )!;
     // note: we get lazy with the types here, because the inference is bad anyway and this has a `void` return signature. The important bit is the parameter signature.
     if (!mockedPath || (!responses as any)[mockedPath])
@@ -190,11 +194,11 @@ export function mockResponses(responses: {
 // helper function that matches a realistic URL (/users/123) to an OpenAPI path (/users/{user_id}
 export function findPath(
   actual: string,
-  testPaths: string[],
+  testPaths: string[]
 ): string | undefined {
   const url = new URL(
     actual,
-    actual.startsWith("http") ? undefined : "http://testapi.com",
+    actual.startsWith("http") ? undefined : "http://testapi.com"
   );
   const actualParts = url.pathname.split("/");
   for (const p of testPaths) {