place.stream.branding.updateBlob

Lexicon Version: 1

Definitions

main

Type: procedure

Update or create a branding asset blob. Requires admin authorization.

Parameters: (None defined)

Input:

• Encoding: application/json
• Schema:

Schema Type: object

Name	Type	Req’d	Description	Constraints
key	string	✅	Branding asset key (mainLogo, favicon, siteTitle, etc.)
broadcaster	string	❌	DID of the broadcaster. If not provided, uses the server’s default broadcaster.	Format: did
data	string	✅	Base64-encoded blob data
mimeType	string	✅	MIME type of the blob (e.g., image/png, text/plain)
width	integer	❌	Image width in pixels (optional, for images only)
height	integer	❌	Image height in pixels (optional, for images only)

Output:

• Encoding: application/json
• Schema:

Schema Type: object

Name	Type	Req’d	Description	Constraints
success	boolean	✅

Possible Errors:

• Unauthorized: The authenticated DID is not authorized to modify branding
• BlobTooLarge: The blob exceeds the maximum size limit

---

Lexicon Source

{
  "lexicon": 1,
  "id": "place.stream.branding.updateBlob",
  "defs": {
    "main": {
      "type": "procedure",
      "description": "Update or create a branding asset blob. Requires admin authorization.",
      "input": {
        "encoding": "application/json",
        "schema": {
          "type": "object",
          "required": ["key", "data", "mimeType"],
          "properties": {
            "key": {
              "type": "string",
              "description": "Branding asset key (mainLogo, favicon, siteTitle, etc.)"
            },
            "broadcaster": {
              "type": "string",
              "format": "did",
              "description": "DID of the broadcaster. If not provided, uses the server's default broadcaster."
            },
            "data": {
              "type": "string",
              "description": "Base64-encoded blob data"
            },
            "mimeType": {
              "type": "string",
              "description": "MIME type of the blob (e.g., image/png, text/plain)"
            },
            "width": {
              "type": "integer",
              "description": "Image width in pixels (optional, for images only)"
            },
            "height": {
              "type": "integer",
              "description": "Image height in pixels (optional, for images only)"
            }
          }
        }
      },
      "output": {
        "encoding": "application/json",
        "schema": {
          "type": "object",
          "required": ["success"],
          "properties": {
            "success": {
              "type": "boolean"
            }
          }
        }
      },
      "errors": [
        {
          "name": "Unauthorized",
          "description": "The authenticated DID is not authorized to modify branding"
        },
        {
          "name": "BlobTooLarge",
          "description": "The blob exceeds the maximum size limit"
        }
      ]
    }
  }
}