Get Attachment by ID

Retrieves the binary content of a single ticket attachment, returned as a Base64-encoded string along with the original filename and MIME type. Use this endpoint when you need to download or display a specific document that was previously attached to a ticket.

Endpoint

GET /api/v1/tickets/getAttachmentById

Authentication

Basic HTTP Authentication required.
Encode username:password in Base64 and pass in the Authorization header:

Authorization: Basic {base64(username:password)}

When to use

Use this endpoint to retrieve the actual file content of an attachment — for example, to download a voided check, processing statement, or compliance document that was uploaded to a ticket. First call GET /api/v1/tickets/getAttachmentsByTicketId to obtain the attachment ID, then use this endpoint to fetch the file content.

Query Parameters

Response

200 OK

{
  "data": {
    "content": "JVBERi0xLjQKJcfs4AAQSkZjRgABAQAAAQABAAD...",
    "fileName": "voided_check.pdf",
    "mimeType": "application/pdf"
  },
  "requestId": 98126,
  "success": true,
  "error": null,
  "validationErrors": []
}

Error Codes

Common Mistakes

• Confusing id (merchant profile ID) with attachId (attachment ID) — all three parameters are distinct and required.
• Using an attachId from a different ticket — each attachment ID is scoped to its parent ticket.
• Not decoding the Base64 content field before attempting to open or display the file.
• Calling this endpoint without first listing attachments via getAttachmentsByTicketId to confirm the attachment exists.

Related Endpoints

• GET /api/v1/tickets/getAttachmentsByTicketId — List all attachment metadata for a ticket to obtain valid attachId values.
• POST /api/v1/tickets/attachment — Upload a new attachment to a ticket.
• GET /api/v1/tickets/getTicketById — Retrieve ticket details including the hasAttachment flag.

Example

curl -X GET "https://hq.staging.netevia.dev/api/v1/tickets/getAttachmentById?id=70269&ticketId=48291&attachId=1034" \
  -H "Authorization: Basic $(echo -n 'username:password' | base64)"