> ## Documentation Index
> Fetch the complete documentation index at: https://docs.konstantly.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Get User by ID

> Get user personal information by user ID

Retrieve detailed information about a specific user using their unique ID.

## Request Headers

<ParamField header="X-API-KEY" type="string" required>
  API Key. Go to your Konstantly site > Settings > API and copy the value from there.
</ParamField>

## URL Parameters

<ParamField path="userId" type="string" required>
  User API ID (alphanumeric unique identifier)
</ParamField>

## Response

<ResponseField name="id" type="string" required>User ID, alphanumeric unique identifier</ResponseField>
<ResponseField name="name" type="string" required>Full name of the user</ResponseField>
<ResponseField name="language" type="string" required>Interface language (de, en, es, fr, pl, pt, ru)</ResponseField>
<ResponseField name="occupation" type="string">Job title</ResponseField>
<ResponseField name="location" type="string">Location</ResponseField>
<ResponseField name="timezone" type="string" required>Timezone in TZ format</ResponseField>
<ResponseField name="email" type="string" required>Email address</ResponseField>
<ResponseField name="isBanned" type="boolean" required>Whether user is banned from login</ResponseField>
<ResponseField name="role" type="string" required>User role alias/identifier</ResponseField>
<ResponseField name="fromApi" type="boolean" required>Whether user is managed via API only</ResponseField>

<ResponseField name="image" type="object">
  User avatar

  <Expandable title="Image object properties">
    <ResponseField name="id" type="integer" required>Image ID</ResponseField>
    <ResponseField name="original" type="string" required>Full-size image URL</ResponseField>
    <ResponseField name="mini" type="string" required>36x36px image URL</ResponseField>
    <ResponseField name="xSmall" type="string" required>58x58px image URL</ResponseField>
    <ResponseField name="small" type="string" required>128x128px image URL</ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="attributes" type="object">Custom user attributes</ResponseField>

### Error Responses

<ResponseField name="404" type="object">
  Returned when user is not found

  <Expandable title="Error object properties">
    <ResponseField name="status" type="integer" required>HTTP status code (404)</ResponseField>
    <ResponseField name="message" type="string" required>Error message</ResponseField>
  </Expandable>
</ResponseField>

<RequestExample>
  ```bash cURL theme={null}
  curl --request GET \
  --url 'https://YOURSITE.konstant.ly/openapi/v1/users/1234567890' \
  --header 'X-API-KEY: 1qaz2wsx3edc4rfv1qaz2wsx3edc4rfv'
  ```

  ```python Python theme={null}
  import requests

  def get_user_by_id(api_key: str, user_id: str) -> dict:
      url = f"https://YOURSITE.konstant.ly/openapi/v1/users/{user_id}"
      headers = {"X-API-KEY": api_key}

      response = requests.get(url, headers=headers)

      if response.status_code == 404:
          raise ValueError(f"User {user_id} not found")

      response.raise_for_status()
      return response.json()

  # Example usage
  try:
      user = get_user_by_id("1qaz2wsx3edc4rfv1qaz2wsx3edc4rfv", "1234567890")
      print(f"User: {user['name']}")
      print(f"Email: {user['email']}")
  except Exception as e:
      print(f"Failed to fetch user: {str(e)}")
  ```

  ```javascript Node.js theme={null}
  const axios = require('axios');

  async function getUserById(apiKey, userId) {
      try {
          const response = await axios.get(
              `https://YOURSITE.konstant.ly/openapi/v1/users/${userId}`,
              {
                  headers: { 'X-API-KEY': apiKey }
              }
          );
          return response.data;
      } catch (error) {
          if (error.response?.status === 404) {
              throw new Error(`User ${userId} not found`);
          }
          throw error;
      }
  }

  // Example usage
  getUserById('1qaz2wsx3edc4rfv1qaz2wsx3edc4rfv', '1234567890')
      .then(user => {
          console.log(`User: ${user.name}`);
          console.log(`Email: ${user.email}`);
      })
      .catch(error => console.error('Failed:', error.message));
  ```
</RequestExample>

<ResponseExample>
  ```json Response theme={null}
  {
      "id": "1234567890",
      "name": "John Doe",
      "language": "en",
      "occupation": "Salesman",
      "location": "London",
      "timezone": "Europe/London",
      "email": "john.doe@example.com",
      "isBanned": false,
      "role": {
          "alias": "learner"
      },
      "fromApi": false,
      "image": null,
      "attributes": {}
  }
  ```

  ```json 404 Error theme={null}
  {
      "status": 404,
      "message": "Not found"
  }
  ```
</ResponseExample>