addAttachment

POST /rest/api/3/issue/{issueIdOrKey}/attachments HTTP/1.1

{
  "issueIdOrKey": {
    "description": "The ID or key of the issue that attachments are added to.",
    "required": true,
    "location": "path",
    "type": "string"
  }
}

{
  "items": {
    "additionalProperties": true,
    "description": "Details about an attachment.",
    "properties": {
      "author": {
        "allOf": [
          {
            "$ref": "#/components/schemas/UserDetails"
          }
        ],
        "description": "Details of the user who added the attachment.",
        "readOnly": true
      },
      "content": {
        "description": "The content of the attachment.",
        "readOnly": true,
        "type": "string"
      },
      "created": {
        "description": "The datetime the attachment was created.",
        "format": "date-time",
        "readOnly": true,
        "type": "string"
      },
      "filename": {
        "description": "The file name of the attachment.",
        "readOnly": true,
        "type": "string"
      },
      "id": {
        "description": "The ID of the attachment.",
        "readOnly": true,
        "type": "string"
      },
      "mimeType": {
        "description": "The MIME type of the attachment.",
        "readOnly": true,
        "type": "string"
      },
      "self": {
        "description": "The URL of the attachment details response.",
        "readOnly": true,
        "type": "string"
      },
      "size": {
        "description": "The size of the attachment.",
        "format": "int64",
        "readOnly": true,
        "type": "integer"
      },
      "thumbnail": {
        "description": "The URL of a thumbnail representing the attachment.",
        "readOnly": true,
        "type": "string"
      }
    },
    "type": "object"
  },
  "type": "array"
}