Developer Dashboard¶
The dashboard endpoints show the operator of a serve instance what the server is doing:
version and uptime, request counts, live remote sessions, download jobs, and the recent
log lines. They exist so you can watch a headless server (serve --quiet) from a web page
instead of a terminal.
The dashboard endpoints are for the person who runs the server, not for API users. They have their own key: a user key or a tier key never opens them.
Enable¶
Set a dashboard key under serve.dashboard in unshackle.yaml:
Without dashboard.key the server does not register the routes, and they answer 404.
serve --no-key turns off user authentication only; the dashboard key stays required.
Once the dashboard key is set, every /api/dashboard/ request must carry it in
X-Secret-Key.
Every other endpoint refuses the dashboard key, and the dashboard refuses user keys. The
routes are available in --remote-only mode too.
Run the server headless with --quiet: no banner, no Rich output, one plain log line per
event on stderr, and api.* loggers stay at INFO so remote session activity reaches the
log ring. Add --debug to raise the level to DEBUG and also write the full log to
directories.logs as unshackle_serve_<time>.log. Nothing else the dashboard shows reaches
the disk: stats, the log ring and the event stream live in memory and reset on restart, so a
dashboard UI that wants history must keep its own copy.
Endpoints¶
All are GET.
| Path | Returns |
|---|---|
/api/dashboard/status |
Version, code_hash, bind host and port, mode (full, api_only, remote_only), uptime, requests_total, requests_rejected (401s), requests_by_key (label → count), loaded service count, session count, max_sessions (null when the operator configured no limit), session_ttl, job counts by status. The service count includes services that failed to import - use /api/dashboard/services for the number that loaded. |
/api/dashboard/sessions |
Every live remote session: id, owner (username or masked key), creator_ip, service, title_id, titles, tracks, title (the display name of the title the client is on: the last one it asked tracks for, else the first resolved title), auth_status, auth_error, server_account (the server profile lent to the remote session, else null), client, actions, created_at and last_accessed (ISO 8601) with created_ts and last_accessed_ts (Unix epoch, the same clock as log ts), age_seconds, idle_seconds, log_seq. client is whatever the remote client sent as client in its session create request. The CLI sends version, code_hash (the commit the client runs, null when its source cannot be read), platform and argv. argv is the command line the user ran: proxy and URL userinfo, secret query parameters and credential values become ***, home and install paths shorten as in the logs, and the line is cut at 3000 characters. An older client sends less or nothing and the field is {}. log_seq is the last sequence number in the remote session's service log - poll /api/dashboard/sessions/{id}/logs when it changes. actions is the session's request log, newest last, capped at 500: ts, method, action (titles, tracks, segments, license, prompt, …), query, status, ms, bytes_in, bytes_out. |
/api/dashboard/jobs |
Every download job with full detail, regardless of owner. Empty in --remote-only mode. |
/api/dashboard/logs |
{"seq": N, "records": [...]}: the last 1000 log records. ?since=<seq> returns only newer records; ?level=WARNING sets the minimum level; ?logger=serve keeps one logger and its children (aiohttp.access is the noisiest). ts is a Unix epoch in seconds. |
/api/dashboard/sessions/{id}/logs |
One remote session's service log: {"session_id", "last_seq", "records": [...]}. Each record has seq, ts, level, message. ?since=<seq> returns only newer records. 404 when the remote session is unknown. |
/api/dashboard/keys |
Every configured API key: what it may do and what it has done. One row per key in serve.users, plus serve.api_secret when it is set. |
/api/dashboard/services |
Every discovered service and its load state, including the ones that failed to import. Not filtered by any allowlist. |
/api/dashboard/health |
Preflight: whether this instance could finish a download. Cached 30 seconds. |
/api/dashboard/events |
Server-Sent Events stream. With ?since=<seq> it returns {"seq", "stats", "events": [...]} instead: every event after seq (the server keeps the last 20000, log records included, so a poll every few seconds is safe even under a busy access log) as one JSON burst, so a UI that polls every few seconds still sees a remote session that opened and closed in between. |
requests_rejected counts 401 responses; those never appear in requests_by_key. The
label is the username from the users entry when one is set, else the first four
characters of the API key.
Event stream¶
/api/dashboard/events sends a stats event (the same body as /status) on connect and
then every 5 seconds, so the connection stays alive and the counters stay current. Between
those it sends:
| Event | Data |
|---|---|
log |
One log record: seq, ts, level, logger, msg. |
session |
action (create, update on every request the session makes and when titles or tracks load, or delete) plus the full remote session summary, so each event is a complete snapshot. A delete also carries reason: closed (the client ended it), expired (TTL sweep) or evicted (max_sessions reached). A session opened by --skip-dl can live only a few seconds, so a UI that wants history must keep its own record of these events. |
job |
event (queued, progress, status, or the terminal status) plus the full job object. |
service |
action (staged, applied or failed) and tags, the services it applies to. A failed action carries errors and an empty tags. Refetch /api/dashboard/services when one arrives, instead of polling for a reload. |
Every frame carries an id: (the event seq). After a dropped connection an EventSource
reconnects with Last-Event-ID and the server replays the events it missed. The connection
never closes on its own.
A browser EventSource cannot set headers, so this route also accepts the dashboard key as
?secret_key=. The dashboard key then appears in proxy and access logs and in browser history, so
use the query parameter only for /events and send the header everywhere else.
const es = new EventSource(`${server}/api/dashboard/events?secret_key=${key}`);
es.addEventListener("log", (e) => console.log(JSON.parse(e.data).msg));
CORS is open (Access-Control-Allow-Origin: *), so a dashboard page served from another
origin works without a proxy.
Remote session logs¶
A remote session mirrors the service's own self.log into a 500-record buffer at INFO,
whatever level the server prints at. The remote session summary carries only a truncated
auth_error; the buffer holds the real reason a login failed.
GET /api/dashboard/sessions/{session_id}/logs?since=12
{"session_id": "...", "last_seq": 14,
"records": [{"seq": 13, "ts": 1756909254.1, "level": "ERROR", "message": "login rejected: MFA required"}]}
The field name is records, the same one /api/dashboard/logs uses, so one dashboard reads
both logs the same way. Each record has the shape the client route /api/session/{id}/logs
returns. last_seq is the buffer's own last sequence number, so an empty page still reports
the true value.
Reading is a cursor read, not a drain: the client draining the same buffer still gets every record. It also does not refresh the remote session's idle timer, so polling a remote session here never keeps it alive or makes it look active.
log_seq is a poll trigger, not a push
A remote session summary reaches the dashboard only when something publishes a session
event - a request the remote session makes, or an auth transition. A log line on its own
publishes nothing. Poll this route when log_seq changes, and on a timer while a drawer
is open.
Keys¶
GET /api/dashboard/keys
[{"id": "3ed054be9371", "role": "user", "label": "tier1", "services": ["EXAMPLE", "DEMO"],
"server_cdm": false, "server_accounts": false, "server_proxy": false,
"tier": "bot", "rate_limit": 600, "window_used": 412,
"requests": 41300, "rejected": 4, "bytes_out": 103079215104, "last_seen": 1756909188.2},
{"id": "7c1d0f52a884", "role": "dashboard", "label": "dash…", "services": [],
"server_cdm": false, "server_accounts": false, "server_proxy": false,
"tier": null, "rate_limit": null, "window_used": 0,
"requests": 8140, "rejected": 0, "bytes_out": 41200311, "last_seen": 1756909350.9}]
id is a hash of the API key, so it stays stable across restarts and carries no key material.
Two API keys with no username merge into one label in requests_by_key but stay separate
here, so use id as the identity and label only for display.
| Field | Meaning |
|---|---|
role |
Which key this is: user (a serve.users entry), admin (serve.api_secret) or dashboard (serve.dashboard.key). Identity, not capability - read the grant fields for what the API key may do. |
services |
The effective allowlist, the global list intersected with the API key's. null means unrestricted; [] means the API key reaches no service route at all. |
server_cdm, server_accounts |
false, true, or the list of service tags the grant covers. |
server_proxy |
Boolean. Only a literal true grants it, and an API key with no users entry does not get it. |
rate_limit |
Requests per hour, from the API key's own value or its tier's. null means no limit. |
window_used |
Requests counted in the current hourly window. |
rejected |
Responses of 400 or worse that the server attributes to this API key, 429s included. The global requests_rejected stays 401-only. |
bytes_out |
Response bodies only. An event stream reports no body length, so it counts as zero. |
last_seen |
null until the API key makes its first request. |
Only a configured API key gets a row of counters. A request on an open route such as /api/health with an unknown key counts as anonymous, so an unauthenticated caller cannot grow the table.
Every API key the server counts has a row here, the dashboard key included, so a
requests_by_key bucket other than anonymous always matches one. A "traffic by key" panel
reads the rows here, which are unambiguous, and takes anonymous from requests_by_key. Read
role before you draw the bars: the dashboard row is the panel measuring its own polling.
The dashboard key gets services: [] and no grants unless the operator also gave it a
serve.users entry, because it reaches nothing outside /api/dashboard/. An API key listed
in more than one place still gets exactly one row.
Rate limits¶
An API key over its limit gets 429 with a Retry-After header:
serve:
tiers:
bot: { rate_limit: 600 } # requests per hour
users:
"<api key>":
username: bot-relay
tier: bot
# rate_limit: 900 # optional, wins over the tier
The server keeps a fixed window, not a sliding one: it opens on the first request and resets
an hour later. An API key with no tier and no override has no limit. A tier that names no
entry under serve.tiers, or a rate_limit that is not a positive whole number, stops the
server at startup, because the alternative is an API key that silently gets no limit. The rate
limit never applies to the dashboard key, and never to /api/health.
Services¶
GET /api/dashboard/services
[{"tag": "EXAMPLE", "state": "staged", "error": null,
"commit": "9cc230c98f13b83f6c6fe831595b9702d3ba2786", "staged_commit": "5f0aa17...",
"staged_since": 1756908900.0, "sessions": 1, "jobs": 1,
"aliases": ["EXMPL"], "geofence": ["US"]}]
state is loaded, staged or failed. A service that failed to import keeps its error
here instead of disappearing, and /status still counts it in the service total - count the
state values here for the number that loaded.
A staged service has an update on disk that a busy service blocks from the import: the repo
pull already happened, so commit (what runs now) and staged_commit (what waits) differ. It swaps in when the last job and the last remote session for that tag finish. Both commits are null
for a service from a plain local directory rather than a git repo.
Watch the service event rather than polling for the swap.
Health¶
GET /api/dashboard/health
{"generated_at": 1756909350.4, "status": "ok",
"checks": [{"id": "ffmpeg", "label": "ffmpeg", "status": "ok",
"detail": "7.1 · /usr/bin/ffmpeg", "ms": 4.1}]}
An instance can answer every request and still fail every download, because mp4decrypt is
missing or a vault's credentials expired. This finds that before a job does.
status is ok, degraded (an optional dependency is missing) or failing (a required one
is). Player binaries are not checked: a headless server never has one and it plays nothing.
Each check is ok, warn or fail. Check ids are the binary names, cdm,
vault:<name> (the vault's configured name, so two vaults of the same type stay apart),
bad_keys and proxies. bad_keys warns when the vaults hold no SQLite entry, because only
that backend stores the flag for a content key a remote client proved wrong; without it the
server serves the same bad pair again.
The server caches the result for 30 seconds and keeps every probe shallow: a vault answers one
lookup that should miss, and no probe allocates anything. A failing probe's detail has the
vault's password or token masked. This is a panel, not a liveness probe - do not poll it faster
than the cache: every refresh that the cache does not answer costs one real lookup against each
configured vault, which a vault that meters or rate limits its callers will count.
An unreachable vault costs a slow, partial answer
The probes run one after another, so a cold read takes as long as the probes that finish
inside the deadline. The endpoint gives up after 15 seconds and answers with the checks that
did complete, plus one probe check with the status fail naming how many finished. A
database vault that accepts the connection and then stalls is what this deadline is for: its
driver applies no timeout of its own, so without one the request would never answer.
The probe that timed out keeps running in its thread until its driver returns, and the server caches the partial answer for the full 30 seconds, so callers cannot stack up more of them. A second caller waits behind the first, because the server shares one refresh rather than running it twice.
Proxy providers are only checked at construction
The proxy check builds each proxy provider but never asks it for a proxy, because for some
proxy providers that allocates a connection. A proxy provider that only fails on its first
real use still reads ok.
Counters reset on restart¶
Stats, the log ring and the event history are all in memory. A restart drops every number to
zero. started_at in the stats frame (with version and code_hash) is the signal: it
arrives in the first frame after a reconnect, so a dashboard can tell a restart from a bug
without any extra field.