# Create an attachment

Attaches a file to one or multiple objects, such as: customer,
dispute, transaction, order, plan, product, invoice, or timeline
comment. Attachments enable you to quickly find and use files
related to specific entities.

Endpoint: POST /attachments
Version: latest
Security: SecretApiKey, JWT

## Request fields (application/json):

  - `fileId` (string, required)
    ID of the linked file object.
    Example: file_0YV7HZ7KDCC5WBV9Q7WRKG1H6N

  - `relatedType` (string, required)
    Linked object type.
    Enum: "customer", "customer-timeline-comment", "dispute", "gateway-timeline-comment", "invoice", "invoice-timeline-comment", "order-timeline-comment", "organization", "payment", "plan", "product", "subscription", "transaction", "transaction-timeline-comment"

  - `relatedId` (string, required)
    ID of the linked object.

  - `name` (string)
    Name of original attachment.

  - `description` (string)
    Description of the attachment.

## Response 201 fields (application/json):

  - `id` (string)
    ID of the attachment.
    Example: att_0YV7J787J0DW0918MQQMDHWA7M

  - `fileId` (string, required)
    ID of the linked file object.
    Example: file_0YV7HZ7KDCC5WBV9Q7WRKG1H6N

  - `relatedType` (string, required)
    Linked object type.
    Enum: "customer", "customer-timeline-comment", "dispute", "gateway-timeline-comment", "invoice", "invoice-timeline-comment", "order-timeline-comment", "organization", "payment", "plan", "product", "subscription", "transaction", "transaction-timeline-comment"

  - `relatedId` (string, required)
    ID of the linked object.

  - `name` (string)
    Name of original attachment.

  - `description` (string)
    Description of the attachment.

  - `createdTime` (string)
    Date and time when the resource is created.
This value is set automatically when the resource is created.

  - `updatedTime` (string)
    Date and time when the resource is updated.
This value is set automatically when the resource is updated.

  - `_links` (array)
    Related links.

  - `_links.href` (string)
    Link URL.

  - `_links.rel` (string)
    Type of link.
    Enum: "self", "file"

  - `_embedded` (object)
    Embedded objects that are requested by the `expand` query parameter.

  - `_embedded.file` (object)

## Response 401 fields (application/json):

  - `status` (integer)
    HTTP status code.

  - `type` (string)
    Problem type in the form of a [URI](https://tools.ietf.org/html/rfc3986) reference.
It should provide human-readable documentation for the problem type.
When this member is not present, its value is assumed to be "about:blank".

  - `title` (string)
    Short, human-readable summary of the problem type.
Other than for the purposes of localization, this should not change from occurrence to occurrence of the problem.

  - `detail` (string)
    Human-readable explanation that is specific to this occurrence of the problem.

  - `instance` (string)
    URI reference that identifies the specific occurrence of the problem.
It may or may not yield further information if dereferenced.

## Response 403 fields (application/json):

  - `status` (integer)
    HTTP status code.

  - `type` (string)
    Problem type in the form of a [URI](https://tools.ietf.org/html/rfc3986) reference.
It should provide human-readable documentation for the problem type.
When this member is not present, its value is assumed to be "about:blank".

  - `title` (string)
    Short, human-readable summary of the problem type.
Other than for the purposes of localization, this should not change from occurrence to occurrence of the problem.

  - `detail` (string)
    Human-readable explanation that is specific to this occurrence of the problem.

  - `instance` (string)
    URI reference that identifies the specific occurrence of the problem.
It may or may not yield further information if dereferenced.

## Response 409 fields (application/json):

  - `status` (integer)
    HTTP status code.

  - `type` (string)
    Problem type in the form of a [URI](https://tools.ietf.org/html/rfc3986) reference.
It should provide human-readable documentation for the problem type.
When this member is not present, its value is assumed to be "about:blank".

  - `title` (string)
    Short, human-readable summary of the problem type.
Other than for the purposes of localization, this should not change from occurrence to occurrence of the problem.

  - `detail` (string)
    Human-readable explanation that is specific to this occurrence of the problem.

  - `instance` (string)
    URI reference that identifies the specific occurrence of the problem.
It may or may not yield further information if dereferenced.

## Response 422 fields (application/json):

  - `status` (integer)
    HTTP status code.

  - `type` (string)
    Problem type in the form of a [URI](https://tools.ietf.org/html/rfc3986) reference.
It should provide human-readable documentation for the problem type.
When this member is not present, its value is assumed to be "about:blank".

  - `title` (string)
    Short, human-readable summary of the problem type.
Other than for the purposes of localization, this should not change from occurrence to occurrence of the problem.

  - `detail` (string)
    Human-readable explanation that is specific to this occurrence of the problem.

  - `instance` (string)
    URI reference that identifies the specific occurrence of the problem.
It may or may not yield further information if dereferenced.

  - `invalidFields` (array)
    Invalid field details.
    Example: [{"field":"field1","message":"field1 is invalid"},{"field":"subObject.field2","message":"field2 is invalid"},{"field":"subObject.field2","message":"another error in the field2"}]

  - `invalidFields.field` (string)
    Name of the field.
Dot notation is used for nested object field names.

  - `invalidFields.message` (string)
    Message field.

## Response 429 fields (application/json):

  - `type` (string)
    Problem type in the form of a [URI](https://tools.ietf.org/html/rfc3986) reference.
It should provide human-readable documentation for the problem type.
When this member is not present, its value is assumed to be "about:blank".
    Example: about:blank

  - `title` (string)
    Short, human-readable summary of the problem type.
Other than for the purposes of localization, this should not change from occurrence to occurrence of the problem.
    Example: Rate Limit Exceeded

  - `status` (integer)
    HTTP status code.

  - `detail` (string)
    Human-readable explanation that is specific to this occurrence of the problem.
    Example: A request cannot be executed because the user has sent too many requests within a certain period of time

  - `instance` (string)
    URI reference that identifies the specific occurrence of the problem.
It may or may not yield further information if dereferenced.