# Chat

## Overview

Chat Completion API.

### Available Operations

* [complete](#complete) - Chat Completion
* [stream](#stream) - Stream chat completion

## complete

Chat Completion

### Example Usage

<!-- UsageSnippet language="typescript" operationID="chat_completion_v1_chat_completions_post" method="post" path="/v1/chat/completions" -->
```typescript
import { Mistral } from "@mistralai/mistralai";

const mistral = new Mistral({
  apiKey: process.env["MISTRAL_API_KEY"] ?? "",
});

async function run() {
  const result = await mistral.chat.complete({
    model: "mistral-large-latest",
    messages: [
      {
        role: "user",
        content: "Who is the best French painter? Answer in one short sentence.",
      },
    ],
    responseFormat: {
      type: "text",
    },
  });

  console.log(result);
}

run();
```

### Standalone function

The standalone function version of this method:

```typescript
import { MistralCore } from "@mistralai/mistralai/core.js";
import { chatComplete } from "@mistralai/mistralai/funcs/chatComplete.js";

// Use `MistralCore` for best tree-shaking performance.
// You can create one instance of it to use across an application.
const mistral = new MistralCore({
  apiKey: process.env["MISTRAL_API_KEY"] ?? "",
});

async function run() {
  const res = await chatComplete(mistral, {
    model: "mistral-large-latest",
    messages: [
      {
        role: "user",
        content: "Who is the best French painter? Answer in one short sentence.",
      },
    ],
    responseFormat: {
      type: "text",
    },
  });
  if (res.ok) {
    const { value: result } = res;
    console.log(result);
  } else {
    console.log("chatComplete failed:", res.error);
  }
}

run();
```

### Parameters

| Parameter                                                                                                                                                                      | Type                                                                                                                                                                           | Required                                                                                                                                                                       | Description                                                                                                                                                                    |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `request`                                                                                                                                                                      | [components.ChatCompletionRequest](../../models/components/chatcompletionrequest.md)                                                                                           | :heavy_check_mark:                                                                                                                                                             | The request object to use for the request.                                                                                                                                     |
| `options`                                                                                                                                                                      | RequestOptions                                                                                                                                                                 | :heavy_minus_sign:                                                                                                                                                             | Used to set various options for making HTTP requests.                                                                                                                          |
| `options.fetchOptions`                                                                                                                                                         | [RequestInit](https://developer.mozilla.org/en-US/docs/Web/API/Request/Request#options)                                                                                        | :heavy_minus_sign:                                                                                                                                                             | Options that are passed to the underlying HTTP request. This can be used to inject extra headers for examples. All `Request` options, except `method` and `body`, are allowed. |
| `options.retries`                                                                                                                                                              | [RetryConfig](../../lib/utils/retryconfig.md)                                                                                                                                  | :heavy_minus_sign:                                                                                                                                                             | Enables retrying HTTP requests under certain failure conditions.                                                                                                               |

### Response

**Promise\<[components.ChatCompletionResponse](../../models/components/chatcompletionresponse.md)\>**

### Errors

| Error Type                 | Status Code                | Content Type               |
| -------------------------- | -------------------------- | -------------------------- |
| errors.HTTPValidationError | 422                        | application/json           |
| errors.SDKError            | 4XX, 5XX                   | \*/\*                      |

## stream

Mistral AI provides the ability to stream responses back to a client in order to allow partial results for certain requests. Tokens will be sent as data-only server-sent events as they become available, with the stream terminated by a data: [DONE] message. Otherwise, the server will hold the request open until the timeout or until completion, with the response containing the full result as JSON.

### Example Usage

<!-- UsageSnippet language="typescript" operationID="stream_chat" method="post" path="/v1/chat/completions#stream" -->
```typescript
import { Mistral } from "@mistralai/mistralai";

const mistral = new Mistral({
  apiKey: process.env["MISTRAL_API_KEY"] ?? "",
});

async function run() {
  const result = await mistral.chat.stream({
    model: "mistral-large-latest",
    messages: [
      {
        role: "user",
        content: "Who is the best French painter? Answer in one short sentence.",
      },
    ],
    responseFormat: {
      type: "text",
    },
  });

  for await (const event of result) {
    console.log(event);
  }
}

run();
```

### Standalone function

The standalone function version of this method:

```typescript
import { MistralCore } from "@mistralai/mistralai/core.js";
import { chatStream } from "@mistralai/mistralai/funcs/chatStream.js";

// Use `MistralCore` for best tree-shaking performance.
// You can create one instance of it to use across an application.
const mistral = new MistralCore({
  apiKey: process.env["MISTRAL_API_KEY"] ?? "",
});

async function run() {
  const res = await chatStream(mistral, {
    model: "mistral-large-latest",
    messages: [
      {
        role: "user",
        content: "Who is the best French painter? Answer in one short sentence.",
      },
    ],
    responseFormat: {
      type: "text",
    },
  });
  if (res.ok) {
    const { value: result } = res;
    for await (const event of result) {
    console.log(event);
  }
  } else {
    console.log("chatStream failed:", res.error);
  }
}

run();
```

### Parameters

| Parameter                                                                                                                                                                      | Type                                                                                                                                                                           | Required                                                                                                                                                                       | Description                                                                                                                                                                    |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `request`                                                                                                                                                                      | [components.ChatCompletionStreamRequest](../../models/components/chatcompletionstreamrequest.md)                                                                               | :heavy_check_mark:                                                                                                                                                             | The request object to use for the request.                                                                                                                                     |
| `options`                                                                                                                                                                      | RequestOptions                                                                                                                                                                 | :heavy_minus_sign:                                                                                                                                                             | Used to set various options for making HTTP requests.                                                                                                                          |
| `options.fetchOptions`                                                                                                                                                         | [RequestInit](https://developer.mozilla.org/en-US/docs/Web/API/Request/Request#options)                                                                                        | :heavy_minus_sign:                                                                                                                                                             | Options that are passed to the underlying HTTP request. This can be used to inject extra headers for examples. All `Request` options, except `method` and `body`, are allowed. |
| `options.retries`                                                                                                                                                              | [RetryConfig](../../lib/utils/retryconfig.md)                                                                                                                                  | :heavy_minus_sign:                                                                                                                                                             | Enables retrying HTTP requests under certain failure conditions.                                                                                                               |

### Response

**Promise\<[EventStream<components.CompletionEvent>](../../models/.md)\>**

### Errors

| Error Type                 | Status Code                | Content Type               |
| -------------------------- | -------------------------- | -------------------------- |
| errors.HTTPValidationError | 422                        | application/json           |
| errors.SDKError            | 4XX, 5XX                   | \*/\*                      |