# Typed Document Node

```
npm i @graphql-codegen/typed-document-node
```

Zeus can generate builders for [`TypedDocumentNode`](https://www.graphql-code-generator.com/plugins/typed-document-node), a type-safe query representation understood by most GraphQL clients (including Apollo, URQL etc) by adding the `--typedDocumentNode` or `--td` flag to the CLI.

## Generate Type-Safe Zeus Schema And TypedDocumentNode query builders

```
$ zeus https://yourschema.com/graphql ./  --typedDocumentNode
# typedDocumentNode.ts file with typed document node builders is now in the output destination
```

## TypedDocumentNode + Apollo Client useMutation examples

The following example demonstrates usage with Apollo. Other clients should work similarly.

```tsx
import { typedGql } from './zeus/typedDocumentNode';
import { $ } from './zeus';
import { useMutation } from '@apollo/client';

const myMutation = typedGql('mutation')({
  cardById: [{ cardId: $('cardId', 'String!') }, { name: true }],
});

const Main = () => {
  const [mutate] = useMutation(myMutation);
  // data response is typed
  return (
    <div
      onClick={() => {
        // this are typesafe vars
        mutate({
          variables: {
            cardId: 'du1hn298u1eh',
          },
        });
      }}
    >
      Click
    </div>
  );
};
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://guide.graphqleditor.com/tools/index/index-3/typeddocumentnode.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.