# Read a relationship's members

Who is in one entity group, oldest first, each with the role it plays inside the relationship and whether it is the principal.

Access class: `def:read`.

## Endpoint

`GET /v1/definitions/{key}/entity-groups/{groupId}/members`

## Parameters

| Name | In | Type | Required |
| --- | --- | --- | --- |
| key | path | string | Yes |
| groupId | path | string | Yes |
| body | query | null | No |
| params | query | object | No |
| query | query | object | No |

## Responses

### 200

the action's answer

Content type: `application/json`.

```json
{
  "data": [
    {
      "addedAt": "string",
      "primary": true,
      "role": "string",
      "rowId": ""
    }
  ]
}
```

### default

a refusal: `{"error": "<what a person needs to read>"}`. 401 no credential, 402 the plan does not include this, 403 the seat does not, 404 the thing does not exist or is not yours to see.

Content type: `application/json`.

```json
{
  "error": "string"
}
```