consul/vendor/github.com/joyent/triton-go/compute/ping.go

59 lines
1.4 KiB
Go

//
// Copyright (c) 2018, Joyent, Inc. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
//
package compute
import (
"context"
"encoding/json"
"net/http"
"github.com/joyent/triton-go/client"
pkgerrors "github.com/pkg/errors"
)
const pingEndpoint = "/--ping"
type CloudAPI struct {
Versions []string `json:"versions"`
}
type PingOutput struct {
Ping string `json:"ping"`
CloudAPI CloudAPI `json:"cloudapi"`
}
// Ping sends a request to the '/--ping' endpoint and returns a `pong` as well
// as a list of API version numbers your instance of CloudAPI is presenting.
func (c *ComputeClient) Ping(ctx context.Context) (*PingOutput, error) {
reqInputs := client.RequestInput{
Method: http.MethodGet,
Path: pingEndpoint,
}
response, err := c.Client.ExecuteRequestRaw(ctx, reqInputs)
if err != nil {
return nil, pkgerrors.Wrap(err, "unable to ping")
}
if response == nil {
return nil, pkgerrors.Wrap(err, "unable to ping")
}
if response.Body != nil {
defer response.Body.Close()
}
var result *PingOutput
decoder := json.NewDecoder(response.Body)
if err = decoder.Decode(&result); err != nil {
if err != nil {
return nil, pkgerrors.Wrap(err, "unable to decode ping response")
}
}
return result, nil
}