diff --git a/R/get_data.R b/R/get_data.R
index 4e3e2db..b8dbc1f 100755
--- a/R/get_data.R
+++ b/R/get_data.R
@@ -102,10 +102,12 @@ get_n <- function(scope, n = 10000, start_date = lubridate::dmy("01-01-1900"), c
 #' @param url url to visit and get data from
 #' @param parse logical. whether to return parsed data or not. Defautls to \code{TRUE}.
 #' @export
-get_data <- function(url, parse = T, vpn = F, cookie = "", time_out = 10, docker = F){
+get_data <- function(url, parse = T, vpn = F, cookie = "", time_out = 10){
+
+
 
   if(!stringr::str_detect(url, "&_signature=")){
-    final_url <- get_signature(url, docker = docker)
+    final_url <- get_signature(url)
   } else {
     final_url <- url
   }
diff --git a/R/meta.R b/R/meta.R
index b7d42df..3e7185a 100644
--- a/R/meta.R
+++ b/R/meta.R
@@ -42,6 +42,8 @@ tk_auth <- function(cookie, ua, id_cookie, docker = F) {
     } else {
       message("TIKTOK_DOCKER found. Tiktokr will use a docker container to sign the urls")
     }
+  } else {
+    if(Sys.getenv("TIKTOK_DOCKER") == "") message("TIKTOK_DOCKER found. Tiktokr will use a docker container to sign the urls")
   }
 
   ## Tiktok Cookie
diff --git a/R/signature.R b/R/signature.R
index 80c6235..ecfaecf 100644
--- a/R/signature.R
+++ b/R/signature.R
@@ -1,10 +1,11 @@
 #' @export
-get_signature <- function(urls, docker = F){
-
-  if(!docker) out <- get_puppeteer_signature(urls)
-  if(docker) out <- urls %>% purrr::map_chr(get_docker_signature)
-  # if(!is.null(port)) out <- urls %>% purrr::map_chr(get_api_signature, port = port)
+get_signature <- function(urls){
 
+  if(Sys.getenv("TIKTOK_DOCKER") == "TRUE"){
+    out <- urls %>% purrr::map_chr(get_docker_signature)
+  } else {
+    out <- get_puppeteer_signature(urls)
+  }
 
   paste0(urls, "&_signature=", out)
 }
diff --git a/lab.Rmd b/lab.Rmd
index 9571159..7ccf7d6 100755
--- a/lab.Rmd
+++ b/lab.Rmd
@@ -21,6 +21,12 @@ b$signature
 
 ```{r}
 
+
+
+
+
+
+
 dockeR::doc_copy("tiktoksignature", from = "../tiktok_signature/api.R", to_cont = "/usr/api.R")
 dockeR::doc_copy("tiktoksignature", from = "../tiktok_signature/run_api.R", to_cont = "/usr/run_api.R")
 
@@ -42,11 +48,16 @@ res$r_code
 
 1. Install docker. Once it is installed you can verify with `docker -v```
 
-2. Build the image of a container able to generate tiktok signature (this needs to be done only once)
+2. Set `docker = T` in tk_auth() and run the following test:
 
 ```{r}
 
-
+tk_init()
+if(stringr::str_length(get_docker_signature("")) > 16){
+  message("Signature successfull, your docker container is working.")
+} else {
+  message("Unable to get the signature")
+}
 
 ```