# Functions ChatGPT integration [ChatGPT](https://openai.com/blog/chatgpt) can be used in almost all tasks that involve understanding or generating natural language or code. In the development environment, it's a tool used for boosting developers' productivity, helping them to: - Explain the code being implemented. - Generate new code. - Refactor preexisting code. --- ## How does the Functions ChatGPT integration work? **Functions Code Editor** is integrated into the ChatGPT APIs, so you can use a set of features inside the editor, without opening another tab. The features go from refactoring the code to generating new code based on the prompt input. First, you need to configure your credentials registered on the OpenAI platform and generate an API key and org: - [Generate ChatGPT API key](https://platform.openai.com/account/api-keys) - [Generate ChatGPT Organization ID](https://platform.openai.com/account/org-settings) With your credentials in hand, paste them into your source code as a comment, as exemplified below: ```js /* ChatGPTKey=key // Your ChatGPT key ChatGPTOrg=org // The org */ ``` Now, with your credentials set, you're able to use the integration to develop faster and have your code reviewed whenever you like. --- ## Features ### Code Explanation One feature available on this integration is **Code Explanation**. It comes in handy when you have to debug a function, or simply review it. It's also useful when you're working on legacy code. ### Code Generation **Code Generation** works based on the prompt informed. For example, let's say you want to return an `HTML` page, with a table containing the name, phone number, and address. **Prompt**: ```js // generate an html table with name, phone number and address ``` After writing the prompt inside the code editor, right-click it and select `ChatGPT: Generate`. **Output**: ```js

Name	Phone Number	Address
John Smith	(123) 456-7890	123 Main St, Anytown, USA
Jane Doe	(987) 654-3210	456 Oak St, Anytown, USA
Bob Johnson	(555) 555-1212	789 Maple St, Anytown, USA

``` ### Code Refactor Another option is to ask ChatGPT to refactor the code. To do so, select the piece of code you want to refactor, then right-click on it and select `ChatGPT: Refactor`. After that, your code will be refactored automatically. **Tip**: it's always a good idea to test and ensure the refactored code is working as expected, avoiding unexpected issues in the future. --- ## Implementation Here's a real-life implementation of the Functions ChatGPT integration: | Implementation | Description | | --- | --- | | [How to build an API with Functions and ChatGPT](/en/documentation/products/guides/edge-functions/api-builder/) | See how to build an API and have its responses returned in JSON, with the help of ChatGPT |