# Get Context

> Retrieve documentation context for a library

# Get Context

Retrieve documentation context for a specific library. Returns documentation as a JSON array of documentation snippets (default) or as plain text.

## Arguments

<ParamField path="query" type="string" required>
  The user's question or task (used for relevance ranking)
</ParamField>

<ParamField path="libraryId" type="string" required>
  The library ID (e.g., `/facebook/react`)
</ParamField>

<ParamField path="options" type="GetContextOptions">
  <Expandable title="properties">
    <ParamField path="type" type="'json' | 'txt'">
      Format of the response
      - `json`: Array of Documentation objects (default)
      - `txt`: Plain text format

      Default: `"json"`
    </ParamField>
  </Expandable>
</ParamField>

## Response

The response type depends on the `type` option.

### JSON Format (`type: "json"` or default)

Returns `Documentation[]` - an array of documentation objects.

### Text Format (`type: "txt"`)

Returns a `string` containing the documentation context ready to use in LLM prompts.

<ResponseField name="Documentation" type="object">
  <Expandable title="properties">
    <ResponseField name="title" type="string" required>
      Title of the documentation snippet
    </ResponseField>
    <ResponseField name="content" type="string" required>
      The documentation content (includes code blocks in markdown format)
    </ResponseField>
    <ResponseField name="source" type="string" required>
      Source identifier for the snippet
    </ResponseField>
  </Expandable>
</ResponseField>

## Examples

<RequestExample>
```typescript JSON Format (Default)
import { Context7 } from "@upstash/context7-sdk";

const client = new Context7();

const docs = await client.getContext(
  "How do I use hooks?",
  "/facebook/react"
);

docs.forEach((doc) => {
  console.log(doc.title);
  console.log(doc.content);
  console.log(doc.source);
});
```

```typescript Text Format
import { Context7 } from "@upstash/context7-sdk";

const client = new Context7();

const context = await client.getContext(
  "How do I use hooks?",
  "/facebook/react",
  { type: "txt" }
);

console.log(context);
```

```typescript Error Handling
import { Context7, Context7Error } from "@upstash/context7-sdk";

const client = new Context7();

try {
  const context = await client.getContext(
    "How to get started?",
    "/invalid/library"
  );
} catch (error) {
  if (error instanceof Context7Error) {
    console.error("API Error:", error.message);
  } else {
    throw error;
  }
}
```
</RequestExample>

## Use Cases

### Providing Context to LLMs

```typescript
import { Context7 } from "@upstash/context7-sdk";

const client = new Context7();

async function getDocsForPrompt(library: string, question: string) {
  const context = await client.getContext(question, library);

  return `
Here is the relevant documentation:

${context}

User question: ${question}
`;
}

const prompt = await getDocsForPrompt("/facebook/react", "How do I use useEffect?");
```

### Processing Individual Snippets

```typescript
import { Context7 } from "@upstash/context7-sdk";

const client = new Context7();

const docs = await client.getContext(
  "How to create components?",
  "/facebook/react",
  { type: "json" }
);

docs.forEach((doc) => {
  console.log(`Title: ${doc.title}`);
  console.log(`Source: ${doc.source}`);
  console.log(`Content length: ${doc.content.length} chars`);
});
```