traefik/docs/configuration/api.md

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# API Definition
```toml
# API definition
[api]
# Name of the related entry point
#
# Optional
# Default: "traefik"
#
entryPoint = "traefik"
# Enabled Dashboard
#
# Optional
# Default: true
#
dashboard = true
# Enabled debug mode
#
# Optional
# Default: false
#
debug = true
```
## Web UI
![Web UI Providers](/img/web.frontend.png)
![Web UI Health](/img/traefik-health.png)
## API
| Path | Method | Description |
|-----------------------------------------------------------------|------------------|-------------------------------------------|
| `/` | `GET` | Provides a simple HTML frontend of Træfik |
| `/health` | `GET` | json health metrics |
| `/api` | `GET` | Configuration for all providers |
| `/api/providers` | `GET` | Providers |
| `/api/providers/{provider}` | `GET`, `PUT` | Get or update provider |
| `/api/providers/{provider}/backends` | `GET` | List backends |
| `/api/providers/{provider}/backends/{backend}` | `GET` | Get backend |
| `/api/providers/{provider}/backends/{backend}/servers` | `GET` | List servers in backend |
| `/api/providers/{provider}/backends/{backend}/servers/{server}` | `GET` | Get a server in a backend |
| `/api/providers/{provider}/frontends` | `GET` | List frontends |
| `/api/providers/{provider}/frontends/{frontend}` | `GET` | Get a frontend |
| `/api/providers/{provider}/frontends/{frontend}/routes` | `GET` | List routes in a frontend |
| `/api/providers/{provider}/frontends/{frontend}/routes/{route}` | `GET` | Get a route in a frontend |
!!! warning
For compatibility reason, when you activate the rest provider, you can use `web` or `rest` as `provider` value.
But be careful, in the configuration for all providers the key is still `web`.
### Provider configurations
```shell
curl -s "http://localhost:8080/api" | jq .
```
```json
{
"file": {
"frontends": {
"frontend2": {
"routes": {
"test_2": {
"rule": "Path:/test"
}
},
"backend": "backend1"
},
"frontend1": {
"routes": {
"test_1": {
"rule": "Host:test.localhost"
}
},
"backend": "backend2"
}
},
"backends": {
"backend2": {
"loadBalancer": {
"method": "drr"
},
"servers": {
"server2": {
"weight": 2,
"URL": "http://172.17.0.5:80"
},
"server1": {
"weight": 1,
"url": "http://172.17.0.4:80"
}
}
},
"backend1": {
"loadBalancer": {
"method": "wrr"
},
"circuitBreaker": {
"expression": "NetworkErrorRatio() > 0.5"
},
"servers": {
"server2": {
"weight": 1,
"url": "http://172.17.0.3:80"
},
"server1": {
"weight": 10,
"url": "http://172.17.0.2:80"
}
}
}
}
}
}
```
### Health
```shell
curl -s "http://localhost:8080/health" | jq .
```
```json
{
// Træfik PID
"pid": 2458,
// Træfik server uptime (formated time)
"uptime": "39m6.885931127s",
// Træfik server uptime in seconds
"uptime_sec": 2346.885931127,
// current server date
"time": "2015-10-07 18:32:24.362238909 +0200 CEST",
// current server date in seconds
"unixtime": 1444235544,
// count HTTP response status code in realtime
"status_code_count": {
"502": 1
},
// count HTTP response status code since Træfik started
"total_status_code_count": {
"200": 7,
"404": 21,
"502": 13
},
// count HTTP response
"count": 1,
// count HTTP response
"total_count": 41,
// sum of all response time (formated time)
"total_response_time": "35.456865605s",
// sum of all response time in seconds
"total_response_time_sec": 35.456865605,
// average response time (formated time)
"average_response_time": "864.8016ms",
// average response time in seconds
"average_response_time_sec": 0.8648016000000001,
// request statistics [requires --web.statistics to be set]
// ten most recent requests with 4xx and 5xx status codes
"recent_errors": [
{
// status code
"status_code": 500,
// description of status code
"status": "Internal Server Error",
// request HTTP method
"method": "GET",
// request hostname
"host": "localhost",
// request path
"path": "/path",
// RFC 3339 formatted date/time
"time": "2016-10-21T16:59:15.418495872-07:00"
}
]
}
```
## Metrics
You can enable Traefik to export internal metrics to different monitoring systems.
```toml
[api]
# ...
# Enable more detailed statistics.
[api.statistics]
# Number of recent errors logged.
#
# Default: 10
#
recentErrors = 10
# ...
```
| Path | Method | Description |
|------------|---------------|-------------------------|
| `/metrics` | `GET` | Export internal metrics |