update readme

README.md

@@ -110,14 +110,6 @@ written to STDERR. To hide them add a 2>/dev/null to hide the comments.
 []
 ```
 
-### dns-api.sh
-
-Low level command to access the api. It is called from ./dns-search.sh too - but can be started manually for custom api urls.
-
-`dns-api.sh [METHOD] URL`
-
-This script is used by dns-search.sh ans show_ttls.sh.
-
 ### show_ttls.sh
 
 This helper searches for all **host** entries that override the default
@@ -155,3 +147,27 @@ host2.example.com
 
 Between the json data are lines starting with a semikolon - these are comments
 written to STDERR. To hide them add a 2>/dev/null to hide the comments.
+
+### dns-api.sh
+
+This is a low level command to access the api. 
+This script is used by dns-search.sh ans show_ttls.sh.
+But it can be started manually for custom api urls.
+
+`dns-api.sh [METHOD] URL`
+
+Example:
+
+As an additional information for show_ttl.sh: how to get the default TTL?
+
+```txt
+./dns-api.sh GET '/zone_auth?fqdn=example.com&_return_fields=soa_default_ttl,use_grid_zone_timer'
+; === DNS API :: GET /zone_auth?fqdn=example.com&_return_fields=soa_default_ttl,use_grid_zone_timer
+[
+  {
+    "_ref": "zone_auth/RFID:example.com/default",
+    "soa_default_ttl": 28800,
+    "use_grid_zone_timer": false
+  }
+]
+```