First development, but most be completed.

.env

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+CREDENTIALS='{"type":"service_account","project_id":"","private_key_id":"","private_key":"","client_email":"","client_id":"","auth_uri":"","token_uri":"","auth_provider_x509_cert_url":"","client_x509_cert_url":"","universe_domain":""}'

.gitignore

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+bin/
+lib/
+node_modules/
+
+package-lock.json
+pnpm-lock.yaml
+env.ts
+.env

README.md

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+# `@samchon/json-translator`
+[![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/samchon/json-translator/blob/master/LICENSE)
+[![npm version](https://img.shields.io/npm/v/@samchon/json-translator.svg)](https://www.npmjs.com/package/@samchon/json-translator)
+[![Downloads](https://img.shields.io/npm/dm/@samchon/json-translator.svg)](https://www.npmjs.com/package/@samchon/json-translator)
+[![Build Status](https://github.com/samchon/json-translator/workflows/build/badge.svg)](https://github.com/samchon/json-translator/actions?query=workflow%3Abuild)
+
+Translate JSON file via Google Translate API.
+
+`@samchon/json-translate` is a wrapper library that translates JSON files using the Google Translate API. It has optimization logic that reduces costs and elapsed time by minimizing the number of API calls.
+
+Here is an example code translating `swagger.json` file.
+
+```typescript
+import { OpenApi } from "@samchon/openapi";
+import { JsonTranslator } from "@samchon/json-translator";
+
+const fetchOpenApiDocument = async (): Promise<OpenApi.IDocument> => {
+  const response: Response = await fetch(
+    "https://raw.githubusercontent.com/samchon/shopping-backend/refs/heads/master/packages/api/swagger.json",
+  );
+  return response.json();
+}
+
+const main = async (): Promise<void> => {
+  const translator: JsonTranslator = new JsonTranslator({
+    credentials: { ... },
+  });
+  const input: OpenApi.IDocument = await fetchOpenApiDocument();
+  const output: OpenApi.IDocument = await translator.translate({
+    input,
+    to: "ko",
+    filter: (explore) =>
+      explore.key === "title" ||
+      explore.key === "description" ||
+      explore.key === "summary" ||
+      explore.key === "x-wrtn-placeholder",
+  });
+  console.log(output);
+};
+main().catch(console.error);
+```

assets/input/bbs.article.json

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+{
+  "id": "c1cbfc65-51fe-4cc3-b162-568fdedb1c41", 
+  "title": "[Article] Hello, nice to meet you.", 
+  "body": "Nice to meet you translate-json users.\n\nThis is an example JSON file embodying a BBS article.\n\nLet's see how this content be translated into other languages.", 
+  "created_at": "2024-09-26T19:45:47.145Z", 
+  "updated_at": "2024-10-22T03:49:25.790Z"
+}