> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.mercoa.com/embedded-ap-ar/api-reference/entity-group/user/get/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.mercoa.com/_mcp/server.

# Get Group User

GET https://api.mercoa.com/entityGroup/{entityGroupId}/user/{foreignId}

Get entity user from a group

Reference: https://docs.mercoa.com/embedded-ap-ar/api-reference/entity-group/user/get

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Request

### Path parameters

- `entityGroupId` (string, required) — Entity Group ID or Entity Group ForeignID
- `foreignId` (string, required) — ID used to identify user in your system

## Response

### 200

- `foreignId` (string, required) — The ID used to identify this user in your system.
- `entities` (list of object, required) — List of roles per entity.
  - `entityId` (string, required) — The IDs of the entities that these roles applies to.
  - `id` (string, required)
  - `roles` (list of string, required) — List of roles. A role can be any string. For example: "payer", "approver", "viewer"
- `createdAt` (datetime, required)
- `updatedAt` (datetime, required)
- `email` (string, optional)
- `name` (string, optional)

## Errors

### 400 Bad Request

- `errorName` ("BadRequest", required)
- `content` (string, required)

### 401 Unauthorized

- `errorName` ("Unauthorized", required)
- `content` (string, required)

### 403 Forbidden

- `errorName` ("Forbidden", required)
- `content` (string, required)

### 404 Not Found

- `errorName` ("NotFound", required)
- `content` (string, required)

### 409 Conflict

- `errorName` ("Conflict", required)
- `content` (string, required)

### 500 Internal Server Error

- `errorName` ("InternalServerError", required)
- `content` (string, required)

### 501 Unimplemented

- `errorName` ("Unimplemented", required)
- `content` (string, required)

## Examples

**Response**

```json
{
  "foreignId": "MY-DB-ID-12345",
  "entities": [
    {
      "entityId": "ent_21661ac1-a2a8-4465-a6c0-64474ba8181d",
      "id": "user_ec3aafc8-ea86-408a-a6c1-545497badbbb",
      "roles": [
        "admin",
        "approver"
      ]
    },
    {
      "entityId": "ent_9e02a20e-7749-47de-8d8a-f8ff2859fa90",
      "id": "user_3a3aafc8-ea86-408a-a6c1-545497badbbb",
      "roles": [
        "viewer"
      ]
    }
  ],
  "createdAt": "2024-01-01T00:00:00Z",
  "updatedAt": "2024-01-01T00:00:00Z",
  "email": "john.doe@acme.com",
  "name": "John Doe"
}
```

**SDK Code**

```python Default
import requests

url = "https://api.mercoa.com/entityGroup/entg_8545a84e-a45f-41bf-bdf1-33b42a55812c/user/MY-DB-ID-12345"

headers = {"Authorization": "Bearer <token>"}

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

print(response.json())
```

```typescript Default
import { MercoaClient } from "@mercoa/javascript";

const client = new MercoaClient({ token: "YOUR_TOKEN" });
await client.entityGroup.user.get("entg_8545a84e-a45f-41bf-bdf1-33b42a55812c", "MY-DB-ID-12345");

```

```go Default
package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.mercoa.com/entityGroup/entg_8545a84e-a45f-41bf-bdf1-33b42a55812c/user/MY-DB-ID-12345"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby Default
require 'uri'
require 'net/http'

url = URI("https://api.mercoa.com/entityGroup/entg_8545a84e-a45f-41bf-bdf1-33b42a55812c/user/MY-DB-ID-12345")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body
```

```java Default
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.get("https://api.mercoa.com/entityGroup/entg_8545a84e-a45f-41bf-bdf1-33b42a55812c/user/MY-DB-ID-12345")
  .header("Authorization", "Bearer <token>")
  .asString();
```

```php Default
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.mercoa.com/entityGroup/entg_8545a84e-a45f-41bf-bdf1-33b42a55812c/user/MY-DB-ID-12345', [
  'headers' => [
    'Authorization' => 'Bearer <token>',
  ],
]);

echo $response->getBody();
```

```csharp Default
using RestSharp;

var client = new RestClient("https://api.mercoa.com/entityGroup/entg_8545a84e-a45f-41bf-bdf1-33b42a55812c/user/MY-DB-ID-12345");
var request = new RestRequest(Method.GET);
request.AddHeader("Authorization", "Bearer <token>");
IRestResponse response = client.Execute(request);
```

```swift Default
import Foundation

let headers = ["Authorization": "Bearer <token>"]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.mercoa.com/entityGroup/entg_8545a84e-a45f-41bf-bdf1-33b42a55812c/user/MY-DB-ID-12345")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```