Skip to content
Beeper Developer Docs
Download Beeper
API Reference
Assets

Upload a file (base64)

$client->assets->uploadBase64(string content, ?string fileName, ?string mimeType): AssetUploadBase64Response
POST/v1/assets/upload/base64

Upload a file using a JSON body with base64-encoded content. Returns an uploadID that can be referenced when sending a message or creating a draft attachment. Alternative to the multipart upload endpoint.

ParametersExpand Collapse
content: string

Base64-encoded file content (max ~500MB decoded)

fileName?:optional string

Original filename. Generated if omitted

mimeType?:optional string

MIME type. Auto-detected from magic bytes if omitted

ReturnsExpand Collapse
?float duration

Duration in seconds (audio/videos)

?string error

Error message if upload failed

?string fileName

Resolved filename

?float fileSize

File size in bytes

?float height

Height in pixels (images/videos)

?string mimeType

Detected or provided MIME type

?string srcURL

Local file URL (file://) for the uploaded file

?string uploadID

Unique upload ID for this temporary file

?float width

Width in pixels (images/videos)

Upload a file (base64)

<?php

require_once dirname(__DIR__) . '/vendor/autoload.php';

$client = new Client(accessToken: 'My Access Token');

$response = $client->assets->uploadBase64(
  content: 'x', fileName: 'fileName', mimeType: 'mimeType'
);

var_dump($response);
{
  "duration": 0,
  "error": "error",
  "fileName": "fileName",
  "fileSize": 0,
  "height": 0,
  "mimeType": "mimeType",
  "srcURL": "srcURL",
  "uploadID": "uploadID",
  "width": 0
}
Returns Examples
{
  "duration": 0,
  "error": "error",
  "fileName": "fileName",
  "fileSize": 0,
  "height": 0,
  "mimeType": "mimeType",
  "srcURL": "srcURL",
  "uploadID": "uploadID",
  "width": 0
}