# Create a relationship

## Create relationship

<mark style="color:green;">`POST`</mark> `https://ris.rightsline.com/v4/relationship`

This endpoint allows you to create a new relationship between entities.

#### Headers

| Name           | Type   | Description             |
| -------------- | ------ | ----------------------- |
| x-api-key      | string | Your company's API key. |
| Authentication | string | Authentication token.   |

#### Request Body

| Name                                               | Type   | Description                                                       |
| -------------------------------------------------- | ------ | ----------------------------------------------------------------- |
| parentRecordId<mark style="color:red;">\*</mark>   | number | The ID of the parent record.                                      |
| parentCharTypeId<mark style="color:red;">\*</mark> | number | The [char type ID](/entities/char-types.md) of the parent record. |
| childRecordId<mark style="color:red;">\*</mark>    | number | The ID of the child record.                                       |
| childCharTypeId<mark style="color:red;">\*</mark>  | number | The [char type ID](/entities/char-types.md) of the child record.  |

{% tabs %}
{% tab title="200 Relationship created successfully." %}

```
5545562  // relationship ID
```

{% endtab %}

{% tab title="400 Invalid relationship " %}

```json
{
    "message": "Invalid Relationship"
}
```

{% endtab %}

{% tab title="404 Parent or Child Record does not exist /missing parent or child record parameters" %}

```json
{
    "message": "Parent deal 104689890 does not exist". //or 'Child deal'
}
```

{% endtab %}

{% tab title="403 User doesn’t have adequate permissions" %}

<pre class="language-json"><code class="lang-json"><strong>{
</strong>    "message": "Acls don't provide create relationship rights for 4/2."
}
</code></pre>

{% endtab %}
{% endtabs %}

### Examples

#### 1. Create catalog to rights relationship

{% code title="POST /v4/relationship" %}

```javascript
{
    "parentRecordId": 100,
    "parentCharTypeId": 1,
    "childRecordId": 23,
    "childCharTypeId": 3
}
```

{% endcode %}

#### 2. Create catalog to catalog relationship

{% code title="POST /v4/relationship" %}

```json
{
    "parentRecordId": 100,
    "parentCharTypeId": 1,
    "childRecordId": 1245,
    "childCharTypeId": 1
}
```

{% endcode %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://api-docs.rightsline.com/relationships/relationship-create.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.