func (api *API) SubscribeData(query string, cb func(ts messages.QueryTimeseriesResult)) error {
nonce := rand.Uint32()
msg := messages.KeyValueQuery{
Query: query,
Nonce: nonce,
}
fmt.Printf("Subscribe to %v\n", api.uri+fmt.Sprintf("/signal/%s,all", api.vk[:len(api.vk)-1]))
c, err := api.client.Subscribe(&bw.SubscribeParams{
URI: api.uri + fmt.Sprintf("/signal/%s,all", api.vk[:len(api.vk)-1]),
})
if err != nil {
return err
}
err = api.client.Publish(&bw.PublishParams{
URI: api.uri + "/slot/subscribe",
PayloadObjects: []bw.PayloadObject{msg.ToMsgPackBW()},
})
fmt.Printf("Publish to %v\n", api.uri+"/slot/subscribe")
for msg := range c {
found, timeseries, err := GetTimeseries(nonce, msg)
if err == nil && found {
cb(timeseries)
} else if err != nil {
return err
}
}
return nil
}
func (api *API) Query(query string) error {
if len(query) == 0 {
return nil
}
var wg sync.WaitGroup
nonce := rand.Uint32()
msg := messages.KeyValueQuery{
Query: query,
Nonce: nonce,
}
wg.Add(1)
fmt.Printf("Subscribe to %v\n", api.uri+fmt.Sprintf("/signal/%s,queries", api.vk[:len(api.vk)-1]))
c, err := api.client.Subscribe(&bw.SubscribeParams{
URI: api.uri + fmt.Sprintf("/signal/%s,queries", api.vk[:len(api.vk)-1]),
})
if err != nil {
return err
}
go func() {
for msg := range c {
var isMyResponse bool = false
// check for error
found, err := GetError(nonce, msg)
isMyResponse = isMyResponse || found
if found {
fmt.Println(err)
}
// check for metadata
found, metadata, err := GetMetadata(nonce, msg)
isMyResponse = isMyResponse || found
if err == nil && found {
fmt.Println(metadata.Dump())
} else if found && err != nil {
fmt.Println(err)
}
// check for timeseries
found, timeseries, err := GetTimeseries(nonce, msg)
isMyResponse = isMyResponse || found
if err == nil && found {
fmt.Println(timeseries.Dump())
} else if found && err != nil {
fmt.Println(err)
}
// check for lists
found, listdata, err := GetDistinctList(nonce, msg)
isMyResponse = isMyResponse || found
if err == nil && found {
fmt.Println(listdata.Dump())
} else if found && err != nil {
fmt.Println(err)
}
if isMyResponse {
wg.Done()
}
}
}()
err = api.client.Publish(&bw.PublishParams{
URI: api.uri + "/slot/query",
PayloadObjects: []bw.PayloadObject{msg.ToMsgPackBW()},
})
fmt.Printf("Publish to %v\n", api.uri+"/slot/query")
wg.Wait()
return nil
}