Document client

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Kevin McCarthy 2014-10-20 02:58:17 +00:00
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The actual object is the marshalled JSON of the `MachineInfo` struct found in [info/machine.go](info/machine.go)
## REST API Clients
There is an example Go client under [client/](client/) - you can use it on your own Go project by including it like this:
```go
import "github.com/google/cadvisor/client"
client, err = client.NewClient("http://192.168.59.103:8080/")
mInfo, _ := client.MachineInfo()
```
## Roadmap
cAdvisor aims to improve the resource usage and performance characteristics of running containers. Today, we gather and expose this information to users. In our roadmap:

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# Example REST API Client
This is an implementation of a cadvisor REST API in Go. You can use it like this:
```go
client, err := client.NewClient("http://192.168.59.103:8080/")
```
Obviously, replace the URL with the path to your actual cadvisor REST endpoint.
### MachineInfo
```go
client.MachineInfo()
```
This method returns a cadvisor/info.MachineInfo struct with all the fields filled in. Here is an example return value:
```
(*info.MachineInfo)(0xc208022b10)({
NumCores: (int) 4,
MemoryCapacity: (int64) 2106028032,
Filesystems: ([]info.FsInfo) (len=1 cap=4) {
(info.FsInfo) {
Device: (string) (len=9) "/dev/sda1",
Capacity: (uint64) 19507089408
}
}
})
```
### ContainerInfo
Given a container name and a ContainerInfoRequest, will return all information about the specified container. The ContainerInfoRequest struct just has one field, NumStats, which is the number of stat entries that you want returned.
```go
request := info.ContainerInfoRequest{10}
sInfo, err := client.ContainerInfo("/docker/d9d3eb10179e6f93a...", &request)
```
Returns a [ContainerInfo struct](../info/container.go)
### SubcontainersInfo
Given a container name and a ContainerInfoRequest, will recursively return all info about the container and all subcontainers contained within the container. The ContainerInfoRequest struct just has one field, NumStats, which is the number of stat entries that you want returned.
```go
request := info.ContainerInfoRequest{10}
sInfo, err := client.SubcontainersInfo("/docker", &request)
```
Returns a [ContainerInfo struct](../info/container.go) with the Subcontainers field populated.