diff --git a/.gitignore b/.gitignore
index 783a4ae..abf52e7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 *~
 *.sw[op]
+/hooks/
diff --git a/README.md b/README.md
index eacabe2..98cb053 100644
--- a/README.md
+++ b/README.md
@@ -37,8 +37,43 @@ Once installed, **updates from the uptream app are managed from within the app.*
 
 ## Configuration
 
-All the configuration of the app take place inside the app itself.
+### Sensors, language and this kind of stuff
+Main configuration of the app take place inside the app itself.
 
+### Access and API
+By default, access for the [JSON API](https://www.domoticz.com/wiki/Domoticz_API/JSON_URL's) is allowed on following path `/yourdomain.tld/api_/domoticzpath`.
+So if you access domoticz via https://mydomainname.tld/domoticz, use the following webpath for the api : `/mydomainname.tld/api_/domoticz/json.htm?yourapicommand`
+
+By default, only sensor updates and switch toogle are authorized. To authorized a new command, you have (for now) to manually update the nginx config file :
+````
+sudo nano /etc/nginx/conf.d/yourdomain.tld.d/domoticz.conf
+````
+Then edit the following block by adding the regex of the command you want to allow:
+````
+  #set the list of authorized json command here in regex format
+  #you may retrieve the command from https://www.domoticz.com/wiki/Domoticz_API/JSON_URL's
+  #By default, sensors updates and toggle switch are authorized
+  if ( $args ~* type=command&param=udevice&idx=[0-9]*&nvalue=[0-9]*&svalue=.*$|type=command&param=switchlight&idx=[0-9]*&switchcmd=Toggle$) {
+    set $api "1";
+    }
+````
+For example, to add the json command to retrieve the status of a device (/json.htm?type=devices&rid=IDX),modify the line as this:
+````
+  #set the list of authorized json command here in regex format
+  #you may retrieve the command from https://www.domoticz.com/wiki/Domoticz_API/JSON_URL's
+  #By default, sensors updates and toggle switch are authorized
+  if ( $args ~* type=command&param=udevice&idx=[0-9]*&nvalue=[0-9]*&svalue=.*$|type=command&param=switchlight&idx=[0-9]*&switchcmd=Toggle$|type=devices&rid=[0-9]* ) {
+    set $api "1";
+    }
+````
+
+All IPv6 and IPv4 address within the local network (192.168.0.0/24) are authorized as API.
+As far as I know, there is no way to use such filter for IPv6 address : You may remove the authorization by removing or commenting this line in `/etc/nginx/conf.d/yourdomain.tld.d/domoticz.conf`:
+````
+allow ::/1;
+````
+This will authorized only IPv4 within local network to access your domoticz API.
+You may add individual IPv6 address in the same way.
 
 ## Documentation
 
diff --git a/README_fr.md b/README_fr.md
index ab352bb..2f8bd05 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -35,7 +35,44 @@ Une fois installée, **les mises à jour de l'application sont gérées depuis l
 
 ## Configuration
 
-Toute la configuration a lieu à l'intérieur de l'application elle-même.
+### Senseurs, langue et ce genre de choses
+Toute la configuration de l'application a lieu dans l'application elle même
+Main configuration of the app take place inside the app itself.
+
+### Accès et API
+Par défaut, l'accès aux [API JSON](https://www.domoticz.com/wiki/Domoticz_API/JSON_URL's) est autorisé sur cette URL `/votredomaine.tld/api_/chemindedomoticz`.
+Donc, si vous accédez à domoticz par https://votredomaine.tld/domoticz, utilisez le chemin suivant pour l'api: `/votredomaine.tld/api_/domoticz/json.htm?votrecommandeapi`
+
+Par défaut, seuls la mise à jour de senseur et les interrupteurs sont autorisés. Pour autoriser une nouvelle commande, vous devez (pour l'instant) manuellement éditer le fichier de configuration nginx :
+````
+sudo nano /etc/nginx/conf.d/yourdomain.tld.d/domoticz.conf
+````
+Puis éditer le bloc suivant en y ajoutant le regex de la commmande à autoriser :
+````
+  #set the list of authorized json command here in regex format
+  #you may retrieve the command from https://www.domoticz.com/wiki/Domoticz_API/JSON_URL's
+  #By default, sensors updates and toggle switch are authorized
+  if ( $args ~* type=command&param=udevice&idx=[0-9]*&nvalue=[0-9]*&svalue=.*$|type=command&param=switchlight&idx=[0-9]*&switchcmd=Toggle$) {
+    set $api "1";
+    }
+````
+Par exemple, pour ajouter la commmande json pour retrouver le statut d'un équipement (/json.htm?type=devices&rid=IDX),il faut modifier la ligne comme ceci:
+````
+  #set the list of authorized json command here in regex format
+  #you may retrieve the command from https://www.domoticz.com/wiki/Domoticz_API/JSON_URL's
+  #By default, sensors updates and toggle switch are authorized
+  if ( $args ~* type=command&param=udevice&idx=[0-9]*&nvalue=[0-9]*&svalue=.*$|type=command&param=switchlight&idx=[0-9]*&switchcmd=Toggle$|type=devices&rid=[0-9]* ) {
+    set $api "1";
+    }
+````
+
+Toutes les adresses IPv6 et les adresses IPv4 du réseau local (192.168.0.0/24) sont autorisées pour l'API.
+A ma connaissance, il n'y a pas moyen d'effectuer un tel filtre pour les adresses IPv6, vous pouvez donc retirer leur autorisation en enlevant ou en commentant la ligne suivante dans `/etc/nginx/conf.d/yourdomain.tld.d/domoticz.conf`:
+````
+allow ::/1;
+````
+Ceci autorisera seulement les adresses IPv4 local a accéder aux API de domoticz.
+Vous pouvez ajouter des adresses IPv6 de la même façon.
 
 ## Documentation
 
diff --git a/check_process b/check_process
index 3ab463d..b9d9af3 100644
--- a/check_process
+++ b/check_process
@@ -13,11 +13,10 @@
 		pkg_linter=1
 		setup_sub_dir=1
 		setup_root=1
-		setup_nourl=0
 		setup_private=1
 		setup_public=1
 		upgrade=1
-#		upgrade=1	from_commit=
+		upgrade=1	from_commit=cf402923ff6feeead1c87555c6e9207b8c7f6595
 		backup_restore=1
 		multi_instance=0
 		port_already_use=1
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 7414aa6..67ff968 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -1,20 +1,18 @@
 #sub_path_only rewrite ^__PATH__$ __PATH__/ permanent;
 location __PATH__/ {
 
-  # Path to source
-  #alias __FINALPATH__/ ;
-  proxy_http_version            1.1;
-  proxy_read_timeout            90;
-  proxy_set_header        X-Real-IP $remote_addr;
-  proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
-  proxy_set_header        X-Forwarded_Proto $scheme;
-  proxy_set_header              X-Scheme $scheme;
-  proxy_set_header              Upgrade $http_upgrade;
-  proxy_set_header              Connection $connection_upgrade;
-  more_set_headers                            "X-Frame-Options: SAMEORIGIN";
+  #Settings for main domoticz interface via web browser
+  proxy_http_version 1.1;
+  proxy_read_timeout 90;
+  proxy_set_header X-Real-IP $remote_addr;
+  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+  proxy_set_header X-Forwarded_Proto $scheme;
+  proxy_set_header X-Scheme $scheme;
+  proxy_set_header Upgrade $http_upgrade;
+  proxy_set_header Connection $connection_upgrade;
+  more_set_headers "X-Frame-Options: SAMEORIGIN";
   proxy_pass http://localhost:__PORT__/;
   proxy_set_header Host $host;
-  #proxy_buffering off;
   
 
   # Force usage of https
@@ -22,7 +20,49 @@ location __PATH__/ {
     rewrite ^ https://$server_name$request_uri? permanent;
   }
 
-
   # Include SSOWAT user panel.
   include conf.d/yunohost_panel.conf.inc;
+}
+
+
+#sub_path_only rewrite ^api___PATH__$ api___PATH__/ permanent;
+location __API_PATH__/ {
+  #Alternative path for api, only authorized json command will be accepted
+
+  #allow only local network on IPv4
+  allow 192.168.0.0/16;
+  #allow all address in IPv6 => how to filter?
+  allow ::/1;
+  deny all;
+
+  proxy_http_version 1.1;
+  proxy_read_timeout 90;
+  proxy_set_header X-Real-IP $remote_addr;
+  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+  proxy_set_header X-Forwarded_Proto $scheme;
+  proxy_set_header X-Scheme $scheme;
+  proxy_set_header Upgrade $http_upgrade;
+  proxy_set_header Connection $connection_upgrade;
+  more_set_headers "X-Frame-Options: SAMEORIGIN";
+  proxy_pass http://localhost:__PORT__/;
+  proxy_set_header Host $host;
+  
+  set $api "0";
+  
+  #set the list of authorized json command here in regex format
+  #you may retrieve the command from https://www.domoticz.com/wiki/Domoticz_API/JSON_URL's
+  #By default, sensors updates and toggle switch are authorized
+  if ( $args ~* type=command&param=udevice&idx=[0-9]*&nvalue=[0-9]*&svalue=.*$|type=command&param=switchlight&idx=[0-9]*&switchcmd=Toggle$) {
+    set $api "1";
+  }
+
+  if ($api = 0) {
+    return 403;
+  }
+
+  # Force usage of https
+  if ($scheme = http) {
+    rewrite ^ https://$server_name$request_uri? permanent;
+  }
+
 }
\ No newline at end of file
diff --git a/manifest.json b/manifest.json
index 71d10f2..f461f3b 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Very light weight open sources home automation system that lets you monitor and configure miscellaneous devices",
         "fr": "Logiciel open sources et gratuit de domotique qui vous permet de configurer un grand nombre d'appareils"
     },
-    "version": "2020.2~ynh1",
+    "version": "2020.2~ynh2",
     "url": "https://www.domoticz.com",
     "license": "GPL-3.0-or-later",
     "maintainer": {
diff --git a/scripts/change_url b/scripts/change_url
index 117a84a..4656f85 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -25,17 +25,25 @@ app=$YNH_APP_INSTANCE_NAME
 #=================================================
 # LOAD SETTINGS
 #=================================================
-ynh_script_progression --message="Loading installation settings..." --time --weight=1
+ynh_script_progression --message="Loading installation settings..." --weight=1
 
 # Needed for helper "ynh_add_nginx_config"
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 port=$(ynh_app_setting_get --app=$app --key=port)
+old_api=$(ynh_app_setting_get --app=$app --key=api_path)
+
+if [ "$new_path" == "/" ]; then
+	new_api=/api_/$app
+else
+	new_api=/api_$new_path
+fi
+
 
 
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================
-ynh_script_progression --message="Backing up the app before changing its url (may take a while)..." --time --weight=1
+ynh_script_progression --message="Backing up the app before changing its url (may take a while)..." --weight=5
 
 # Backup the current version of the app
 ynh_backup_before_upgrade
@@ -70,14 +78,14 @@ fi
 #=================================================
 # STOP SYSTEMD SERVICE
 #=================================================
-ynh_script_progression --message="Stopping a systemd service..." --time --weight=1
+ynh_script_progression --message="Stopping a systemd service..." --weight=2
 
 ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
 
 #=================================================
 # MODIFY URL IN NGINX CONF
 #=================================================
-ynh_script_progression --message="Updating nginx web server configuration..." --time --weight=1
+ynh_script_progression --message="Updating nginx web server configuration..." --weight=1
 
 nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf
 
@@ -89,8 +97,10 @@ then
 	# Set global variables for nginx helper
 	domain="$old_domain"
 	path_url="$new_path"
+	api_path="$new_api"
 	# Create a dedicated nginx config
-	ynh_add_nginx_config
+	# Create a dedicated nginx config
+	ynh_add_nginx_config "api_path"
 fi
 
 # Change the domain for nginx
@@ -111,17 +121,29 @@ fi
 
 #=================================================
 # GENERIC FINALISATION
+#=================================================
+# SETUP SSOWAT
+#=================================================
+ynh_script_progression --message="Upgrading SSOwat configuration..." --weight=1
+
+# If the app is private, API should stays publicly accessible.
+ynh_app_setting_delete --app=$app --key="api_path"
+ynh_app_setting_set --app=$app --key="api_path" --value=$new_api
+ynh_permission_url --permission domoticz_API --url "$new_domain$new_api"
+
+
 #=================================================
 # START SYSTEMD SERVICE
 #=================================================
-ynh_script_progression --message="Starting a systemd service..." --time --weight=1
+
+ynh_script_progression --message="Starting a systemd service..." --weight=2
 
 ynh_systemd_action --service_name=$app --action="start"
 
 #=================================================
 # RELOAD NGINX
 #=================================================
-ynh_script_progression --message="Reloading nginx web server..." --time --weight=1
+ynh_script_progression --message="Reloading nginx web server..." --weight=1
 
 ynh_systemd_action --service_name=nginx --action=reload
 
@@ -129,4 +151,4 @@ ynh_systemd_action --service_name=nginx --action=reload
 # END OF SCRIPT
 #=================================================
 
-ynh_script_progression --message="Change of URL completed for $app" --time --last
+ynh_script_progression --message="Change of URL completed for $app"--last
diff --git a/scripts/install b/scripts/install
index 8598b32..2217b28 100755
--- a/scripts/install
+++ b/scripts/install
@@ -29,6 +29,12 @@ path_url=$YNH_APP_ARG_PATH
 is_public=$YNH_APP_ARG_IS_PUBLIC
 app=$YNH_APP_INSTANCE_NAME
 
+#Set dedicated variables
+if [ "$path_url" == "/" ]; then
+	api_path=/api_/$app
+else
+	api_path=/api_$path_url
+fi
 #=================================================
 # CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
 #=================================================
@@ -39,6 +45,8 @@ test ! -e "$final_path" || ynh_die --message="This path already contains a folde
 
 # Register (book) web path
 ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url
+#ynh_webpath_register --app=$app --domain=$domain --path_url=$api_path
+
 
 #=================================================
 # STORE SETTINGS FROM MANIFEST
@@ -53,6 +61,9 @@ ynh_app_setting_set --app=$app --key=is_public --value=$is_public
 ynh_app_setting_set --app=$app --key=OS --value=$OS
 ynh_app_setting_set --app=$app --key=mach --value=$MACH
 
+#path used by api to read/update domoticz
+ynh_app_setting_set --app=$app --key=api_path --value=$api_path
+
 
 #=================================================
 # STANDARD MODIFICATIONS
@@ -63,8 +74,6 @@ ynh_app_setting_set --app=$app --key=mach --value=$MACH
 # Find an available port
 port=$(ynh_find_port --port=8080)
 ynh_app_setting_set --app=$app --key=port --value=$port
-#Standard yunohost does not change __PORT__ in systemd.service
-ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file="../conf/systemd.service"
 
 #=================================================
 # INSTALL DEPENDENCIES
@@ -101,7 +110,7 @@ fi
 ynh_script_progression --message="Configuring nginx web server..." --weight=2
 
 # Create a dedicated nginx config
-ynh_add_nginx_config
+ynh_add_nginx_config "api_path"
 
 #=================================================
 # CREATE DEDICATED USER
@@ -128,16 +137,19 @@ chmod 440 /etc/sudoers.d/$app
 mkdir -p /var/log/$app
 chown -R domoticz: /var/log/$app
 
+
 #=================================================
 # SETUP SYSTEMD
 #=================================================
 ynh_script_progression --message="Configuring a systemd service..." --weight=1
 
 # Create a dedicated systemd config
-ynh_add_systemd_config
+ynh_add_systemd_config --others_var="port"
 
 #ynh_store_file_checksum --file="$final_path/CONFIG_FILE"
 
+
+
 #=================================================
 # GENERIC FINALIZATION
 #=================================================
@@ -183,11 +195,13 @@ ynh_systemd_action --service_name=$app --action="start"
 ynh_script_progression --message="Configuring SSOwat..." --weight=1
 
 # Make app public if necessary
-if [ $is_public -eq 1 ]
-then
-	# unprotected_uris allows SSO credentials to be passed anyway.
+if [ $is_public -eq 1 ]; then
 	ynh_permission_update --permission "main" --add visitors
 fi
+#API should stay publicly accessible.
+ynh_permission_create --permission="domoticz_API" --url="$domain$api_path" --allowed="visitors"
+
+
 
 #=================================================
 # RELOAD NGINX
diff --git a/scripts/restore b/scripts/restore
index ad9f96a..165a767 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -33,6 +33,7 @@ path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 backup_OS=$(ynh_app_setting_get --app=$app --key=OS)
 backup_mach=$(ynh_app_setting_get --app=$app --key=mach)
+api_path=$(ynh_app_setting_get --app=$app --key=api_path)
 
 #=================================================
 # CHECK IF THE APP CAN BE RESTORED
@@ -41,6 +42,8 @@ ynh_script_progression --message="Validating restoration parameters..." --weight
 
 ynh_webpath_available --domain=$domain --path_url=$path_url \
 	|| ynh_die --message="Path not available: ${domain}${path_url}"
+#ynh_webpath_available --domain=$domain --path_url=$api_path \
+#	|| ynh_die --message="Path not available: ${domain}${api_path}"
 test ! -d $final_path \
 	|| ynh_die --message="There is already a directory: $final_path "
 #As we are downloading compiled binaries for each system, we have to check if the restore occurs
@@ -113,7 +116,7 @@ systemctl enable $app.service --quiet
 #=================================================
 ynh_script_progression --message="Integrating service in YunoHost..." --weight=1
 
-yunohost service add $app --description "A short description of the app" --log "/var/log/$app/$app.log"
+yunohost service add $app --description "Domotique open sources" --log "/var/log/$app/$app.log"
 
 #=================================================
 # START SYSTEMD SERVICE
diff --git a/scripts/upgrade b/scripts/upgrade
index 17858a2..cc4a906 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -27,6 +27,7 @@ final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 port=$(ynh_app_setting_get --app=$app --key=port)
 current_OS=$(ynh_app_setting_get --app=$app --key=OS)
 current_mach=$(ynh_app_setting_get --app=$app --key=mach)
+api_path=$(ynh_app_setting_get --app=$app --key=api_path)
 
 #=================================================
 # CHECK VERSION
@@ -57,7 +58,7 @@ elif [ "$is_public" = "No" ]; then
 elif [ -z "$is_public" ]; then
 	ynh_app_setting_set --app=$app --key=is_public --value=1
 	is_public=1
-	ynh_print_warn --message="Application was set as public in the previous version,meaning it's available without authentifaction."
+ynh_print_warn --message="Application was set as public in the previous version,meaning it's available without authentication."
 	ynh_print_warn --message="if you require to set it as private, please use the authorization config panel in Users/Manage Groups and permissions"
 fi
 
@@ -75,6 +76,25 @@ if [ -z "$final_path" ]; then
 	ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 fi
 
+#Create a dedicated path for the api access
+if [ -z "$api_path" ]; then
+	if [ "$path_url" == "/" ]; then
+		api_path=/api_/$app
+	else
+		api_path=/api_$path_url
+	fi
+	ynh_app_setting_set --app=$app --key=api_path --value=$api_path
+fi
+
+
+# Create the permission "domoticz_API" only if it doesn't exist.
+if ! ynh_permission_exists --permission="domoticz_API"
+then
+	# API Authorization with dedicated URL
+	ynh_permission_create --permission="domoticz_API" --url="$domain$api_path" --allowed="visitors"
+fi
+
+
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================
@@ -102,19 +122,6 @@ fi
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
 
-#=================================================
-# CHECK THE PATH
-#=================================================
-
-
-# Normalize the URL path syntax
-# N.B. : this is for app installations before YunoHost 2.7
-# where this value might be something like /foo/ or foo/
-# instead of /foo ....
-# If nobody installed your app before 2.7, then you may
-# safely remove this line
-path_url=$(ynh_normalize_url_path --path_url=$path_url)
-
 #=================================================
 # STANDARD UPGRADE STEPS
 #=================================================
@@ -151,7 +158,7 @@ fi
 ynh_script_progression --message="Upgrading nginx web server configuration..." --weight=1
 
 # Create a dedicated nginx config
-#ynh_add_nginx_config
+ynh_add_nginx_config "api_path"
 
 #=================================================
 # UPGRADE DEPENDENCIES
@@ -183,14 +190,14 @@ chmod 440 /etc/sudoers.d/$app
 mkdir -p /var/log/$app
 chown -R domoticz: /var/log/$app
 
+
 #=================================================
 # SETUP SYSTEMD
 #=================================================
 ynh_script_progression --message="Upgrading systemd configuration..." --weight=1
-#Standard yunohost does not change __PORT__ in systemd.service
-ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file="../conf/systemd.service"
+
 # Create a dedicated systemd config
-ynh_add_systemd_config
+ynh_add_systemd_config --others_var="port"
 
 #=================================================
 # MODIFY A CONFIG FILE