> For the complete documentation index, see [llms.txt](https://docs.holder.xyz/holder-api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.holder.xyz/holder-api/contacts/contact-fields.md).

# Contact Fields

### Updating standard field contact values

**update route**

<mark style="background-color:purple;">PUT:</mark> `/fields/standardField/:fieldName`

#### Possible Field Names

| :fieldName      | Field Value Type | Description                                                       |
| --------------- | ---------------- | ----------------------------------------------------------------- |
| discordUsername | string           | The discord username for unauthenticated Discord contacts.        |
| twitterUsername | string           | The twitter username for unauthenticated Twitter contacts.        |
| email           | string           | The contact's email.                                              |
| phoneNumber     | string           | The contacts phone number stored as a string. i.e. '+13175551234' |
| birthday        | int              | The contacts birthday stored as an Epoch timestamp.               |

**Body Structure**

| FIELD     | TYPE                               | Description                                |
| --------- | ---------------------------------- | ------------------------------------------ |
| contactId | string                             | Id of the contact.                         |
| value     | [fieldName](#possible-field-names) | Updated value of the field being updated . |

**Return**

| CODE | RETURN        |
| ---- | ------------- |
| 201  | Updated Value |
| 400  | Field Error   |
| 500  | Neo4j Error   |

###

### Updating custom field contact values

**update route**

<mark style="background-color:purple;">PUT:</mark> `/fields/customField/:customFieldId`

**Body**

| FIELD     | TYPE   | Description                               |
| --------- | ------ | ----------------------------------------- |
| contactId | string | Id of the contact.                        |
| value     | any    | Updated value of the field being updated. |

**Return**

| CODE | RETURN                      |
| ---- | --------------------------- |
| 201  | Updated Value               |
| 403  | Cannot Edit Readonly fields |
| 404  | Custom Field not Found      |
| 500  | Neo4j Error                 |


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