Improve minification build (#39)

.changeset/honest-mayflies-listen.md

@@ -0,0 +1,5 @@
+---
+'openapi-fetch': patch
+---
+
+Add missing type defs for minified build

package.json

@@ -30,7 +30,7 @@
     "build": "npm run build:clean && npm run build:ts && npm run build:ts-min",
     "build:clean": "del dist",
     "build:ts": "tsc -p tsconfig.build.json",
-    "build:ts-min": "esbuild --bundle src/index.ts --format=esm --minify --outfile=dist/index.min.js",
+    "build:ts-min": "esbuild --bundle src/index.ts --format=esm --minify --outfile=dist/index.min.js && cp dist/index.d.ts dist/index.min.d.ts",
     "lint": "npm run lint:js",
     "lint:js": "npx prettier --check \"{src,test}/**/*\"",
     "test": "npm run test:ts && npm run test:js",

src/index.ts

@@ -37,12 +37,11 @@ export type RequestBodyJSON<OperationObj> = FilterKeys<RequestBodyContent<Operat
 export type RequestBody<OperationObj> = undefined extends RequestBodyJSON<OperationObj> ? { body?: RequestBodyJSON<OperationObj> } : { body: RequestBodyJSON<OperationObj> };
 export type QuerySerializer<OperationObj> = { querySerializer?: (query: OperationObj extends { parameters: { query: any } } ? OperationObj['parameters']['query'] : Record<string, unknown>) => string };
 export type FetchOptions<OperationObj> = Params<OperationObj> & RequestBody<OperationObj> & Omit<RequestInit, 'body'> & QuerySerializer<OperationObj>;
-export type TruncatedResponse = Omit<Response, 'arrayBuffer' | 'blob' | 'body' | 'clone' | 'formData' | 'json' | 'text'>;
 export type Success<OperationObj> = FilterKeys<FilterKeys<OperationObj, OkStatus>, 'content'>;
 export type Error<OperationObj> = FilterKeys<FilterKeys<OperationObj, ErrorStatus>, 'content'>;
 export type FetchResponse<T> =
-  | { data: T extends { responses: any } ? NonNullable<FilterKeys<Success<T['responses']>, JSONLike>> : unknown; error?: never; response: TruncatedResponse }
-  | { data?: never; error: T extends { responses: any } ? NonNullable<FilterKeys<Error<T['responses']>, JSONLike>> : unknown; response: TruncatedResponse };
+  | { data: T extends { responses: any } ? NonNullable<FilterKeys<Success<T['responses']>, JSONLike>> : unknown; error?: never; response: Response }
+  | { data?: never; error: T extends { responses: any } ? NonNullable<FilterKeys<Error<T['responses']>, JSONLike>> : unknown; response: Response };
 
 export default function createClient<Paths extends {}>(options?: ClientOptions) {
   const defaultHeaders = new Headers({
@@ -71,26 +70,17 @@ export default function createClient<Paths extends {}>(options?: ClientOptions)
     }
 
     // fetch!
-    const res = await fetch(finalURL, {
+    const response = await fetch(finalURL, {
       redirect: 'follow',
       ...options,
       ...init,
       headers: baseHeaders,
       body: typeof requestBody === 'string' ? requestBody : JSON.stringify(requestBody),
     });
-    const response: TruncatedResponse = {
-      bodyUsed: res.bodyUsed,
-      headers: res.headers,
-      ok: res.ok,
-      redirected: res.redirected,
-      status: res.status as any,
-      statusText: res.statusText,
-      type: res.type,
-      url: res.url,
-    };
+
     // don’t parse JSON if status is 204, or Content-Length is '0'
-    const body = res.status === 204 || res.headers.get('Content-Length') === '0' ? {} : await res.json();
-    return res.ok ? { data: body, response } : { error: body, response: response };
+    const body = response.status === 204 || response.headers.get('Content-Length') === '0' ? {} : await response.json();
+    return response.ok ? { data: body, response } : { error: body, response: response };
   }
 
   return {