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set_state_request.go
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/
set_state_request.go
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package pubnub
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"github.com/pubnub/go/pnerr"
"github.com/pubnub/go/utils"
)
const SET_STATE_PATH = "/v2/presence/sub-key/%s/channel/%s/uuid/%s/data"
var emptySetStateResponse *SetStateResponse
type setStateBuilder struct {
opts *setStateOpts
}
func newSetStateBuilder(pubnub *PubNub) *setStateBuilder {
builder := setStateBuilder{
opts: &setStateOpts{
pubnub: pubnub,
},
}
return &builder
}
func newSetStateBuilderWithContext(pubnub *PubNub, context Context) *setStateBuilder {
builder := setStateBuilder{
opts: &setStateOpts{
pubnub: pubnub,
ctx: context,
},
}
return &builder
}
func (b *setStateBuilder) State(state map[string]interface{}) *setStateBuilder {
b.opts.State = state
return b
}
func (b *setStateBuilder) Channels(channels []string) *setStateBuilder {
b.opts.Channels = channels
return b
}
func (b *setStateBuilder) ChannelGroups(groups []string) *setStateBuilder {
b.opts.ChannelGroups = groups
return b
}
func (b *setStateBuilder) Execute() (*SetStateResponse, StatusResponse, error) {
stateOperation := StateOperation{}
stateOperation.channels = b.opts.Channels
stateOperation.channelGroups = b.opts.ChannelGroups
stateOperation.state = b.opts.State
b.opts.pubnub.subscriptionManager.adaptState(stateOperation)
rawJson, status, err := executeRequest(b.opts)
if err != nil {
return emptySetStateResponse, status, err
}
return newSetStateResponse(rawJson, status)
}
type setStateOpts struct {
State map[string]interface{}
Channels []string
ChannelGroups []string
pubnub *PubNub
ctx Context
}
func (o *setStateOpts) config() Config {
return *o.pubnub.Config
}
func (o *setStateOpts) client() *http.Client {
return o.pubnub.GetClient()
}
func (o *setStateOpts) context() Context {
return o.ctx
}
func (o *setStateOpts) 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")
}
if o.State == nil {
return newValidationError(o, "Missing State")
}
return nil
}
func (o *setStateOpts) buildPath() (string, error) {
channels := string(utils.JoinChannels(o.Channels))
return fmt.Sprintf(SET_STATE_PATH,
o.pubnub.Config.SubscribeKey,
channels,
utils.UrlEncode(o.pubnub.Config.Uuid),
), nil
}
func (o *setStateOpts) buildQuery() (*url.Values, error) {
var err error
var state, groups []byte
q := defaultQuery(o.pubnub.Config.Uuid)
state, err = json.Marshal(o.State)
if err != nil {
return nil, err
}
groups = utils.JoinChannels(o.ChannelGroups)
if o.State != nil {
q.Set("state", string(state))
}
if len(o.ChannelGroups) > 0 {
q.Set("channel-group", string(groups))
}
return q, nil
}
func (o *setStateOpts) buildBody() ([]byte, error) {
return []byte{}, nil
}
func (o *setStateOpts) httpMethod() string {
return "GET"
}
func (o *setStateOpts) isAuthRequired() bool {
return true
}
func (o *setStateOpts) requestTimeout() int {
return o.pubnub.Config.NonSubscribeRequestTimeout
}
func (o *setStateOpts) connectTimeout() int {
return o.pubnub.Config.ConnectTimeout
}
func (o *setStateOpts) operationType() OperationType {
return PNSetStateOperation
}
func newSetStateResponse(jsonBytes []byte, status StatusResponse) (
*SetStateResponse, StatusResponse, error) {
resp := &SetStateResponse{}
var value interface{}
err := json.Unmarshal(jsonBytes, &value)
if err != nil {
e := pnerr.NewResponseParsingError("Error unmarshalling response",
ioutil.NopCloser(bytes.NewBufferString(string(jsonBytes))), err)
return emptySetStateResponse, status, e
}
v, _ := value.(map[string]interface{})
val, _ := v["payload"].([]interface{})
resp.State = val
return resp, status, nil
}
type SetStateResponse struct {
State []interface{}
}