Create Service API Endpoint not parsing service name from path

https://docs.sprites.dev/api/v001-rc30/services/#create-service

These docs show that name just goes as a url param but then I get a 400 service name required

```
PUT /v1/sprites/jesse-amp/services/amp-runner
Content-Type: application/json

{"cmd": "/home/sprite/bin/start-amp-runner.sh", "args": []}
Response:

400 service name required
```
Running through a tailscale funnel
 