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v1

Request Fields

Send the request as application/json.

Field	Type	Required	Validation
transaction_id	string	Yes	1–255 characters; letters, digits, hyphens, and underscores only. Must identify the request in your system.
nik	string	Yes	Exactly 16 digits and must begin with a digit from 1–9. Preserve it as a string.
selfie	string	Yes	Raw Base64-encoded JPEG, JPG, or PNG image. Do not include a data-URI prefix. The decoded image must remain within the upload limit configured for your integration.
channel	string	Yes	1–100 characters; letters, digits, and hyphens only.

Example

Code
{
  "transaction_id": "insights-request-001",
  "nik": "3173050101900001",
  "selfie": "/9j/4AAQSkZJRgABAQAAAQABAAD...",
  "channel": "web"
}

Selfie preparation

• Use JPEG, JPG, or PNG content.
• Base64-encode the image bytes without a data:image/...;base64, prefix.
• Do not send an empty or truncated image.
• Keep the decoded file within the upload limit assigned to your integration.

Insights API v1 validates the Base64 data, decoded file size, and detected image type. It does not apply a documented pixel-dimension requirement.