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heartbeat_request.go
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heartbeat_request.go
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package pubnub
import (
"encoding/json"
"fmt"
"net/http"
"net/url"
"strconv"
"strings"
"github.com/pubnub/go/utils"
)
const HEARTBEAT_PATH = "/v2/presence/sub-key/%s/channel/%s/heartbeat"
type heartbeatBuilder struct {
opts *heartbeatOpts
}
func newHeartbeatBuilder(pubnub *PubNub) *heartbeatBuilder {
builder := heartbeatBuilder{
opts: &heartbeatOpts{
pubnub: pubnub,
},
}
return &builder
}
func newHeartbeatBuilderWithContext(pubnub *PubNub,
context Context) *heartbeatBuilder {
builder := heartbeatBuilder{
opts: &heartbeatOpts{
pubnub: pubnub,
ctx: context,
},
}
return &builder
}
func (b *heartbeatBuilder) State(state interface{}) *heartbeatBuilder {
b.opts.State = state
return b
}
func (b *heartbeatBuilder) Channels(ch []string) *heartbeatBuilder {
b.opts.Channels = ch
return b
}
func (b *heartbeatBuilder) ChannelGroups(cg []string) *heartbeatBuilder {
b.opts.ChannelGroups = cg
return b
}
func (b *heartbeatBuilder) Execute() (interface{}, StatusResponse, error) {
rawJson, status, err := executeRequest(b.opts)
if err != nil {
return "", status, err
}
var value interface{}
err = json.Unmarshal(rawJson, &value)
if err != nil {
return nil, status, err
}
return value, status, nil
}
type heartbeatOpts struct {
pubnub *PubNub
State interface{}
Channels []string
ChannelGroups []string
ctx Context
}
func (o *heartbeatOpts) config() Config {
return *o.pubnub.Config
}
func (o *heartbeatOpts) client() *http.Client {
return o.pubnub.GetClient()
}
func (o *heartbeatOpts) context() Context {
return o.ctx
}
func (o *heartbeatOpts) validate() error {
if o.config().SubscribeKey == "" {
return newValidationError(o, StrMissingSubKey)
}
if len(o.Channels) == 0 && len(o.ChannelGroups) == 0 {
return newValidationError(o, "Missing Channel or Channel Group")
}
return nil
}
func (o *heartbeatOpts) buildPath() (string, error) {
channels := string(utils.JoinChannels(o.Channels))
return fmt.Sprintf(HEARTBEAT_PATH,
o.pubnub.Config.SubscribeKey,
channels), nil
}
func (o *heartbeatOpts) buildQuery() (*url.Values, error) {
q := defaultQuery(o.pubnub.Config.Uuid)
q.Set("heartbeat", strconv.Itoa(o.pubnub.Config.PresenceTimeout))
if len(o.ChannelGroups) > 0 {
q.Set("channel-group", strings.Join(o.ChannelGroups, ","))
}
if o.State != nil {
state, err := utils.ValueAsString(o.State)
if err != nil {
return &url.Values{}, err
}
if string(state) != "{}" {
q.Set("state", string(state))
}
}
return q, nil
}
func (o *heartbeatOpts) buildBody() ([]byte, error) {
return []byte{}, nil
}
func (o *heartbeatOpts) httpMethod() string {
return "GET"
}
func (o *heartbeatOpts) isAuthRequired() bool {
return true
}
func (o *heartbeatOpts) requestTimeout() int {
return o.pubnub.Config.NonSubscribeRequestTimeout
}
func (o *heartbeatOpts) connectTimeout() int {
return o.pubnub.Config.ConnectTimeout
}
func (o *heartbeatOpts) operationType() OperationType {
return PNHeartBeatOperation
}