Skip to main content

​
Update an Existing Site

Publish a new version of an existing site. Uses hash deduplication — files with matching hashes are copied server-side and don’t need to be re-uploaded. 
PUT /api/v1/publish/:slug

​
Path Parameters

​
slug
string
required
The site slug to update (e.g., bright-canvas-a7k2).

​
Headers

HeaderRequiredDescription
Content-TypeYesapplication/json
AuthorizationYesBearer sl_live_...

​
Request Body

Same as Create a Site. The files array contains the complete file manifest for the new version.
​
files
array
required
Complete file manifest for the new version. Include all files, not just changed ones.

​
Example

curl -X PUT https://supalink.dev/api/v1/publish/bright-canvas-a7k2 \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sl_live_your_key_here" \
  -d '{
    "files": [
      {
        "path": "index.html",
        "size": 2048,
        "contentType": "text/html",
        "hash": "newsha256hash64charslong..."
      },
      {
        "path": "style.css",
        "size": 512,
        "contentType": "text/css",
        "hash": "f6e5d4c3b2a1f6e5d4c3b2a1f6e5d4c3b2a1f6e5d4c3b2a1f6e5d4c3b2a1f6e5"
      }
    ]
  }'

​
Response (200)

{
  "slug": "bright-canvas-a7k2",
  "siteUrl": "https://bright-canvas-a7k2.supalink.dev/",
  "upload": {
    "versionId": "01jm4new789ghi012",
    "uploads": [
      {
        "path": "index.html",
        "method": "PUT",
        "url": "https://supalink.dev/api/v1/_upload/...",
        "headers": { "Content-Type": "text/html" }
      }
    ],
    "skipped": [
      {
        "path": "style.css",
        "reason": "hash_match"
      }
    ],
    "finalizeUrl": "https://supalink.dev/api/v1/publish/bright-canvas-a7k2/finalize",
    "expiresInSeconds": 3600
  }
}

​
How Deduplication Works

  1. Include the hash field (SHA-256) for each file in the manifest
  2. The API compares each hash against the previous version’s files
  3. Files with matching hashes appear in the skipped array — they are copied server-side
  4. Only files in the uploads array need to be uploaded
Always include hashes when updating. Without hashes, every file is treated as new and must be re-uploaded.
After uploading the non-skipped files, call Finalize with the new versionId.