diff --git a/README.md b/README.md
index f2040d8..34bf166 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,6 @@ Requirements
 
 * Unix/Linux machine with bash, zsh or similar shell in use.
 * HTTPie: https://github.com/jkbrzt/httpie#installation
-* `PILADB_HOST` set for remote server, e.g. `export PILADB_HOST=piladb.example.org`
 
 Installation
 ------------
@@ -34,8 +33,8 @@ Run `bash piladb_test.sh`.
 Examples
 --------
 
-Start a local server, create a database and a stack, `PUSH` random number
-from 1 to 10, and stop the server:
+Start a local server, create a database and a stack, `PUSH` an integer, a string
+a boolean and a JSON object, and stop the server:
 
 ```bash
 #!/bin/bash
diff --git a/piladb.sh b/piladb.sh
index e2ba8e7..82f7720 100644
--- a/piladb.sh
+++ b/piladb.sh
@@ -32,7 +32,7 @@ _piladb_get () {
   _require http
   _require_host || return 1
 
-  http "$PILADB_HOST/$1"
+  http "$PILADB_HOST/$1?$2"
 }
 
 _piladb_put () {
@@ -49,6 +49,13 @@ _piladb_post () {
   http POST "$PILADB_HOST/$1" "element:=${@:2}"
 }
 
+_piladb_post_no_payload () {
+  _require http
+  _require_host || return 1
+
+  http POST "$PILADB_HOST/$1"
+}
+
 _piladb_delete () {
   _require http
   _require_host || return 1
@@ -61,6 +68,11 @@ _piladb_delete () {
 piladb_help () {
   _log 'usage: piladb_*
 
+  # if you want to use piladb in a remote host,
+  # you can set PILADB_HOST for that purpose.
+  # e.g. export PILADB_HOST=my.piladb.server:8080
+  # default value is 127.0.0.1:1205
+
   # download pilad in $HOME/bin and add it to PATH
   # version: default is 0.1.5
   # os: linux, darwin. default is linux.
@@ -92,19 +104,19 @@ piladb_help () {
   piladb_config_set $config_value $config_key
 
   # show databases
-  piladb_show_databases
+  piladb_databases
 
   # create database
   piladb_create_database $database_name
 
   # show database
-  piladb_show_database $database_name
+  piladb_database $database_name
 
   # delete database
   piladb_delete_database $database_name
 
   # show stacks in database
-  piladb_show_stack $database_name
+  piladb_stack $database_name
 
   # create stack in database
   piladb_create_stack $database_name $stack_name
@@ -118,22 +130,39 @@ piladb_help () {
   # PUSH element
   piladb_PUSH $database_name $stack_name $element
 
+  # BASE element
+  piladb_BASE $database_name $stack_name $element
+
   # POP element
   piladb_POP $database_name $stack_name
 
   # PEEK element
   piladb_PEEK $database_name $stack_name
 
+  # FLUSH stack
+  piladb_FLUSH $database_name $stack_name
+
+  # ROTATE stack
+  piladb_ROTATE $database_name $stack_name
+
+  # BLOCK stack
+  piladb_BLOCK $database_name $stack_name
+
+  # UNBLOCK stack
+  piladb_UNBLOCK $database_name $stack_name
+
   # SIZE of stack
   piladb_SIZE $database_name $stack_name
 
-  # FLUSH stack
-  piladb_FLUSH $database_name $stack_name
+  # Stack is EMPTY
+  piladb_SIZE $database_name $stack_name
+
+  # Stack is FULL
+  piladb_FULL $database_name $stack_name
 
 requirements:
 
   httpie: https://github.com/jkbrzt/httpie#installation
-  PILADB_HOST set, e.g. export PILADB_HOST=127.0.0.1:1205  # mandatory for remote server
 
 thank you!
 
@@ -150,18 +179,22 @@ piladb_download () {
   local DOWNLOAD_URL="https://github.com/fern4lvarez/piladb/releases/download/v${VERSION}/piladb${VERSION}.${OS}-amd64.tar.gz"
   wget -q "$DOWNLOAD_URL"
 
-  _log "Extracting in ${PWD}..."
-  tar -zxvf "piladb${VERSION}.${OS}-amd64.tar.gz"
+  if [ $? -ne 0 ]; then
+    _err_exit "Version ${VERSION} does not exist or error downloading it. Exiting..."
+  else
+    _log "Extracting in ${PWD}..."
+    tar -zxvf "piladb${VERSION}.${OS}-amd64.tar.gz"
 
-  _log "Moving binary to ${HOME}/bin..."
-  mkdir -p "${HOME}/bin"
-  mv pilad "${HOME}/bin"
-  export PATH="${PATH}:${HOME}/bin"
+    _log "Moving binary to ${HOME}/bin..."
+    mkdir -p "${HOME}/bin"
+    mv pilad "${HOME}/bin"
+    export PATH="${PATH}:${HOME}/bin"
 
-  _log "Cleanup..."
-  rm "piladb${VERSION}.${OS}-amd64.tar.gz"
+    _log "Cleanup..."
+    rm "piladb${VERSION}.${OS}-amd64.tar.gz"
 
-  _log "Done! $(pilad -v)"
+    _log "Done! $(pilad -v)"
+  fi
 }
 
 piladb_start () {
@@ -218,7 +251,7 @@ piladb_config_set () {
   if [ -z "$CONFIG_KEY" ]; then
     _log "config: please provide a config key"
     _exit_or_return 1
-  elif [ -z "${CONFIG_VALUE}" ]; then
+  elif [ -z "$CONFIG_VALUE" ]; then
     _log "config: please provide a config value"
     _exit_or_return 1
   else
@@ -226,7 +259,7 @@ piladb_config_set () {
   fi
 }
 
-piladb_show_databases () {
+piladb_databases () {
   _piladb_get "databases"
 }
 
@@ -241,7 +274,7 @@ piladb_create_database () {
   fi
 }
 
-piladb_show_database () {
+piladb_database () {
   local DATABASE_NAME="$1"
 
   if [ -z "$DATABASE_NAME" ]; then
@@ -263,7 +296,7 @@ piladb_delete_database () {
   fi
 }
 
-piladb_show_stacks () {
+piladb_stacks () {
   local DATABASE_NAME="$1"
 
   if [ -z "$DATABASE_NAME" ]; then
@@ -289,9 +322,10 @@ piladb_create_stack () {
   fi
 }
 
-piladb_show_stack () {
+piladb_stack () {
   local DATABASE_NAME="$1"
   local STACK_NAME="$2"
+  local OP="$3"
 
   if [ -z "$DATABASE_NAME" ]; then
     _log "stacks: please provide a database name"
@@ -300,7 +334,7 @@ piladb_show_stack () {
     _log "stacks: please provide an stack name"
     _exit_or_return 1
   else
-    _piladb_get "databases/${DATABASE_NAME}/stacks/${STACK_NAME}"
+    _piladb_get "databases/${DATABASE_NAME}/stacks/${STACK_NAME}" "${OP}"
   fi
 }
 
@@ -325,28 +359,36 @@ piladb_PUSH () {
   local ELEMENT="${@:3}"
 
   if [ -z "$DATABASE_NAME" ]; then
-    _log "push: please provide a database name"
+    _log "push/base: please provide a database name"
     _exit_or_return 1
   elif [ -z "$STACK_NAME" ]; then
-    _log "push: please provide an stack name"
+    _log "push/base: please provide an stack name"
     _exit_or_return 1
-  elif [ -z "${ELEMENT}" ]; then
-    _log "push: please provide an element"
+  elif [ -z "$ELEMENT" ]; then
+    _log "push/base: please provide an element"
     _exit_or_return 1
   else
     _piladb_post "databases/${DATABASE_NAME}/stacks/${STACK_NAME}" "$ELEMENT"
   fi
 }
 
+piladb_BASE () {
+  local DATABASE_NAME="$1"
+  local STACK_NAME="$2"
+  local ELEMENT="${@:3}"
+
+  piladb_PUSH "$DATABASE_NAME" "$STACK_NAME?base" "$ELEMENT"
+}
+
 piladb_POP () {
   local DATABASE_NAME="$1"
   local STACK_NAME="$2"
 
   if [ -z "$DATABASE_NAME" ]; then
-    _log "push: please provide a database name"
+    _log "pop: please provide a database name"
     _exit_or_return 1
   elif [ -z "$STACK_NAME" ]; then
-    _log "push: please provide an stack name"
+    _log "pop: please provide an stack name"
     _exit_or_return 1
   else
     _piladb_delete "databases/${DATABASE_NAME}/stacks/${STACK_NAME}"
@@ -357,18 +399,25 @@ piladb_PEEK () {
   local DATABASE_NAME="$1"
   local STACK_NAME="$2"
 
+  piladb_stack "$DATABASE_NAME" "$STACK_NAME" "peek"
+}
+
+piladb_FLUSH () {
+  local DATABASE_NAME="$1"
+  local STACK_NAME="$2"
+
   if [ -z "$DATABASE_NAME" ]; then
-    _log "push: please provide a database name"
+    _log "flush: please provide a database name"
     _exit_or_return 1
   elif [ -z "$STACK_NAME" ]; then
-    _log "push: please provide an stack name"
+    _log "flush: please provide an stack name"
     _exit_or_return 1
   else
-    _piladb_get "databases/${DATABASE_NAME}/stacks/${STACK_NAME}?peek"
+    _piladb_delete "databases/${DATABASE_NAME}/stacks/${STACK_NAME}?flush"
   fi
 }
 
-piladb_SIZE () {
+piladb_ROTATE () {
   local DATABASE_NAME="$1"
   local STACK_NAME="$2"
 
@@ -379,21 +428,71 @@ piladb_SIZE () {
     _log "push: please provide an stack name"
     _exit_or_return 1
   else
-    _piladb_get "databases/${DATABASE_NAME}/stacks/${STACK_NAME}?size"
+    _piladb_post_no_payload "databases/${DATABASE_NAME}/stacks/${STACK_NAME}?rotate"
   fi
 }
 
-piladb_FLUSH () {
+piladb_BLOCK () {
   local DATABASE_NAME="$1"
   local STACK_NAME="$2"
 
   if [ -z "$DATABASE_NAME" ]; then
-    _log "push: please provide a database name"
+    _log "block: please provide a database name"
     _exit_or_return 1
   elif [ -z "$STACK_NAME" ]; then
-    _log "push: please provide an stack name"
+    _log "block: please provide an stack name"
     _exit_or_return 1
   else
-    _piladb_delete "databases/${DATABASE_NAME}/stacks/${STACK_NAME}?flush"
+    _piladb_put "databases/${DATABASE_NAME}/stacks/$STACK_NAME?block"
+  fi
+}
+
+piladb_UNBLOCK () {
+  local DATABASE_NAME="$1"
+  local STACK_NAME="$2"
+
+  if [ -z "$DATABASE_NAME" ]; then
+    _log "unblock: please provide a database name"
+    _exit_or_return 1
+  elif [ -z "$STACK_NAME" ]; then
+    _log "unblock: please provide an stack name"
+    _exit_or_return 1
+  else
+    _piladb_put "databases/${DATABASE_NAME}/stacks/$STACK_NAME?unblock"
   fi
 }
+
+piladb_SIZE () {
+  local DATABASE_NAME="$1"
+  local STACK_NAME="$2"
+
+  piladb_stack "$DATABASE_NAME" "$STACK_NAME" "size"
+}
+
+piladb_EMPTY () {
+  local DATABASE_NAME="$1"
+  local STACK_NAME="$2"
+
+  piladb_stack "$DATABASE_NAME" "$STACK_NAME" "empty"
+}
+
+piladb_FULL () {
+  local DATABASE_NAME="$1"
+  local STACK_NAME="$2"
+
+  piladb_stack "$DATABASE_NAME" "$STACK_NAME" "full"
+}
+
+### ALIASES
+
+alias PUSH='piladb_PUSH'
+alias BASE='piladb_BASE'
+alias POP='piladb_POP'
+alias PEEK='piladb_PEEK'
+alias FLUSH='piladb_FLUSH'
+alias ROTATE='piladb_ROTATE'
+alias BLOCK='piladb_BLOCK'
+alias UNBLOCK='piladb_UNBLOCK'
+alias SIZE='piladb_SIZE'
+alias EMPTY='piladb_EMPTY'
+alias FULL='piladb_FULL'
diff --git a/piladb_test.sh b/piladb_test.sh
index 34a9973..e6a1c82 100644
--- a/piladb_test.sh
+++ b/piladb_test.sh
@@ -8,7 +8,7 @@ _require jq || exit 1
 
 # download pilad from Github
 
-piladb_download
+piladb_download 0.2.0-alpha.20180407 linux
 
 
 # start test pilad
@@ -29,6 +29,7 @@ pid=$(piladb_status | jq '.pid')
 
 
 # test config
+
 piladb_config
 
 max_stack_size=$(piladb_config_get MAX_STACK_SIZE | jq '.element')
@@ -50,7 +51,7 @@ fi
 
 # test databases
 
-number_of_databases=$(piladb_show_databases | jq '.number_of_databases')
+number_of_databases=$(piladb_databases | jq '.number_of_databases')
 if [ "$number_of_databases" -ne "0" ]; then
    _log "ERROR: no databases expected, got $number_of_databases"
    piladb_stop $pid
@@ -61,7 +62,7 @@ piladb_create_database db1
 piladb_create_database db2
 piladb_create_database db3
 
-number_of_databases=$(piladb_show_databases | jq '.number_of_databases')
+number_of_databases=$(piladb_databases | jq '.number_of_databases')
 if [ "$number_of_databases" -ne "3" ]; then
    _log "ERROR: number of databases is $number_of_databases, expected 3"
    piladb_stop $pid
@@ -69,7 +70,7 @@ if [ "$number_of_databases" -ne "3" ]; then
 fi
 
 piladb_delete_database db2
-number_of_databases=$(piladb_show_database db2 | jq '.number_of_databases')
+number_of_databases=$(piladb_database db2 | jq '.number_of_databases')
 if [ -n "$number_of_databases" ]; then
    _log "ERROR: database db2 exists"
    piladb_stop $pid
@@ -83,19 +84,20 @@ piladb_create_stack db1 mystack1
 piladb_create_stack db1 mystack2
 piladb_create_stack db1 mystack3
 
-number_of_stacks=$(piladb_show_database db1 | jq '.number_of_stacks')
+number_of_stacks=$(piladb_database db1 | jq '.number_of_stacks')
 if [ "$number_of_stacks" -ne "3" ]; then
    _log "ERROR: number of stacks is $number_of_stacks, expected 3"
    piladb_stop $pid
    exit 1
 fi
 
-piladb_show_stack db1 mystack1
+piladb_stack db1 mystack1
 
 piladb_PUSH db1 mystack1 false
 piladb_PUSH db1 mystack1 '{"json":"example"}'
 piladb_PUSH db1 mystack1 1
 piladb_PUSH db1 mystack1 '"this is a string"'
+piladb_BASE db1 mystack1 '[1,2,3,5,8,13]'
 
 popped=$(piladb_POP db1 mystack1 | jq '.element')
 if [ "$popped" != '"this is a string"' ]; then
@@ -112,8 +114,8 @@ if [ "$peek" != 1 ]; then
 fi
 
 size=$(piladb_SIZE db1 mystack1)
-if [ "$size" -ne 3 ]; then
-   _log "ERROR: size is $size, expected 2"
+if [ "$size" -ne 4 ]; then
+   _log "ERROR: size is $size, expected 4"
    piladb_stop $pid
    exit 1
 fi
@@ -127,15 +129,73 @@ if [ "$size" -ne "0" ]; then
    exit 1
 fi
 
+empty=$(piladb_EMPTY db1 mystack1)
+if [ "$empty" != true ]; then
+   _log "ERROR: empty is $empty, expected true"
+   piladb_stop $pid
+   exit 1
+fi
+
 piladb_delete_stack db1 mystack2
 
-number_of_stacks=$(piladb_show_database db1 | jq '.number_of_stacks')
+number_of_stacks=$(piladb_database db1 | jq '.number_of_stacks')
 if [ "$number_of_stacks" -ne "2" ]; then
    _log "ERROR: number of stacks is $number_of_stacks, expected 2"
    piladb_stop $pid
    exit 1
 fi
 
+# test MAX_SIZE_STACK and FULL
+
+piladb_config_set MAX_STACK_SIZE 3
+piladb_create_stack db1 maxsize
+
+full=$(piladb_FULL db1 maxsize)
+if [ "$full" = true ]; then
+   _log "ERROR: full is $full, expected false"
+   piladb_stop $pid
+   exit 1
+fi
+
+piladb_PUSH db1 maxsize 1
+piladb_PUSH db1 maxsize 2
+piladb_PUSH db1 maxsize 3
+
+full=$(piladb_FULL db1 maxsize)
+if [ "$full" != true ]; then
+   _log "ERROR: full is $full, expected true"
+   piladb_stop $pid
+   exit 1
+fi
+
+# test PUSH_WHEN_FULL
+
+piladb_PUSH db1 maxsize 4
+
+peek=$(piladb_PEEK db1 maxsize | jq '.element')
+if [ "$peek" != 3 ]; then
+   _log "ERROR: peek is $peek, expected 3"
+   piladb_stop $pid
+   exit 1
+fi
+
+piladb_config_set PUSH_WHEN_FULL true
+
+piladb_PUSH db1 maxsize 4
+
+peek=$(piladb_PEEK db1 maxsize | jq '.element')
+if [ "$peek" != 4 ]; then
+   _log "ERROR: peek is $peek, expected 4"
+   piladb_stop $pid
+   exit 1
+fi
+
+size=$(piladb_SIZE db1 maxsize)
+if [ "$size" -ne "3" ]; then
+   _log "ERROR: size is $size, expected 3"
+   piladb_stop $pid
+   exit 1
+fi
 
 # cleanup