Speedwholes - Image Resize Service

Usage: /resize/{key}/{value}/.../{url}

Required params (unless using template or bypass mode):
- w: width in pixels
- h: height in pixels

Optional params:
- fit: cover (default), contain, fill
- q: quality 1-100 (default 85, affects JPEG/WebP)
- f: output format (jpg, png, webp, gif)
- nocache: 1 to bypass cache
- b: 1 to bypass resize (serve source image directly)
- s: URL signature (HMAC)

Bypass mode (b/1):
- Skips resize, serves cached source image directly
- No width/height required
- Source is still cached for future requests
- Example: /resize/b/1/u/https://example.com/image.jpg

Template mode (uses preset params from subdomain config):
- /resize/t/{template_name}/u/{url}
- /resize/t/{template_name}/p/{part0}/{part1}/...

Source modes:
- /u/{url}: Direct URL mode - full source URL follows
- /p/{parts}: Parts mode - uses source_template from subdomain config
- Legacy: bare http(s):// URL (backwards compatible)

Parts mode with source_template:
- Configure source_template in subdomain config (subdomainConfig/{name}.json)
- Template uses {0}, {1}, {2}... placeholders
- Parts in URL map to placeholders: /p/part0/part1/part2 -> {0}=part0, {1}=part1, {2}=part2
- Example template: "https://cdn.example.com/{1}/{2}.{0}?token={3}"
- With /p/jpg/photos/image123/mytoken resolves to:
https://cdn.example.com/photos/image123.jpg?token=mytoken

Examples:
- /resize/w/300/h/200/u/https://example.com/image.jpg
- /resize/w/300/h/200/fit/contain/u/https://example.com/image.jpg
- /resize/w/300/h/200/p/jpg/photos/image123 (with source_template in config)
- /resize/t/thumbnail/u/https://example.com/image.jpg
- /resize/t/hero/p/jpg/photos/banner
- /resize/b/1/u/https://example.com/image.jpg (bypass resize)

Admin API: /config007/
Health check: /health