Created
August 24, 2017 02:51
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simple app for track and get notifications on telegram from R about bitcoin prices.
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library(stats) | |
library(tidyverse) | |
library(httr) | |
library(jsonlite) | |
library(telegram) | |
## Create the bot object | |
bot <- TGBot$new(token = bot_token('AthosDamianiBot')) | |
bot$getMe() | |
bot$getUpdates() | |
bot$set_default_chat_id('135717240') | |
safe_fromJSON <- safely(fromJSON, as.numeric(NA)) | |
acompanhar_bitcoin <- function(frequencia = 30) { | |
load("historico.RData") | |
ultimo <- tail(historico, 1) | |
while(TRUE) { | |
# pega a cotação do bitcoin brasil (BTCBRL) da API do blinktrade | |
nova_consulta <- safe_fromJSON("https://api.blinktrade.com/api/v1/BRL/ticker?crypto_currency=BTC") | |
if("list" %in% class(nova_consulta$result)) { | |
nova_consulta <- nova_consulta$result %>% | |
as.tibble %>% | |
mutate(timestamp = lubridate::now()) | |
print(nova_consulta) | |
# verifica se alguma coisa mudou desde a ultima consulta de 'frequencia' segundos atrás | |
if(!identical(nova_consulta %>% select(-timestamp), ultimo %>% select(-timestamp))) { | |
historico <- bind_rows(historico, nova_consulta) | |
save(historico, file = "historico.RData") | |
} | |
# caso o valor da cotação atinja algum critério, envia uma mensagem via telegram. | |
if(nova_consulta$buy < 13900 & nova_consulta$last > 13900) { | |
bot$sendMessage('baixa!') | |
bot$sendMessage(nova_consulta$buy) | |
} | |
# caso o valor da cotação atinja algum critério, envia uma mensagem via telegram. | |
if(nova_consulta$buy > 14300 & nova_consulta$last < 14300) { | |
bot$sendMessage('alta!') | |
bot$sendMessage(nova_consulta$buy) | |
} | |
# grafico | |
p <- ggplot(historico %>% | |
gather(indicador, valor, high, low, buy, sell, last) %>% | |
arrange(timestamp %>% desc) %>% | |
slice(1:5760))+ | |
geom_line(aes(x = timestamp, y = valor, colour = indicador)) | |
print(p) | |
ultimo <- nova_consulta | |
} | |
Sys.sleep(frequencia) | |
} | |
} | |
acompanhar_bitcoin(30) |
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