diff --git a/README.md b/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..1c1177de54160b81ee9ae9bca9e5a42d62bffc5a
--- /dev/null
+++ b/README.md
@@ -0,0 +1,27 @@
+# REST API CLIENT
+
+This is a bash solution to script REST API calls.
+
+The specialties of this component are
+
+* It was build to simplify http calls and handle http response for scripts
+* After making a request the response stays is in memory. There is no output to any file to grep something or to cleanup after usage.
+* Its functions feel a bit like class methods, i.e. http.getResponse to get the response body or http.getResponseHeader for the Http response header
+* This component wraps curl - ist supports any http method
+* works with anonymous requests and Basic Authentication
+* The response can be stored ... and reimported later. After import you can use the http.get* functions to fetch results from the former request.
+* Caching support for GET requests with a given TTL: if you repeat a request to the same url and ttl was not reached yet then you continue with the cached result
+
+Source: https://git-repo.iml.unibe.ch/iml-open-source/bash-rest-api-client
+
+License: GNU GPL 3
+
+## Requirements
+
+* Bash as shell (runs on Linux - or with Cygwin or other Bash implementations on MS Windows too.)
+* Curl must be in the path
+* optional: sha1sum (for export function with autogenerated filenames only)
+
+---
+
+[Installation](./docs/10_Installation.md) | [Usage](./docs/20_Usage.md)
\ No newline at end of file
diff --git a/docs/10_Installation.md b/docs/10_Installation.md
new file mode 100644
index 0000000000000000000000000000000000000000..1e67cab7fe0ba7a37b6c9299a00e8fc7a161bb3b
--- /dev/null
+++ b/docs/10_Installation.md
@@ -0,0 +1,19 @@
+# Download
+
+
+Download the archive i.e. as zip:
+
+https://git-repo.iml.unibe.ch/iml-open-source/bash-rest-api-client/-/archive/master/bash-rest-api-client-master.zip
+
+(see other formats at the download button on https://git-repo.iml.unibe.ch/iml-open-source/bash-rest-api-client)
+
+# OR: Git clone
+
+```sh
+git clone https://git-repo.iml.unibe.ch/iml-open-source/bash-rest-api-client.git
+```
+
+# Copy somewhere
+
+Copy the file `rest-api-client.sh` anywhere you want.
+If you need it in a single script then copy it to its directory. If you need it more often then copy it to a folter of your PATH environment.
diff --git a/readme.md b/docs/20_Usage.md
similarity index 72%
rename from readme.md
rename to docs/20_Usage.md
index eed17a790d9bb5decc867db97645cc13fee81dc7..591344e563bf463fa7b67e9be9ad8bde33bc4fc8 100644
--- a/readme.md
+++ b/docs/20_Usage.md
@@ -1,56 +1,13 @@
-# REST API CLIENT #
-
-This is a bash solution to script REST API calls.
-
-The specialties of this component are
-
-* It was build to simplify http calls and handle http response for scripts
-* After making a request the response stays is in memory. There is no output to any file to grep something or to cleanup after usage.
-* Its functions feel a bit like class methods, i.e. http.getResponse to get the response body or http.getResponseHeader for the Http response header
-* This component wraps curl - ist supports any http method
-* works with anonymous requests and Basic Authentication
-* The response can be stored ... and reimported later. After import you can use the http.get* functions to fetch results from the former request.
-* Caching support for GET requests with a given TTL
-
-
-Source: https://git-repo.iml.unibe.ch/iml-open-source/bash-rest-api-client
-
-License: GNU GPL 3
-
-
-## Requirements ##
-
-* Bash as shell (runs on Linux - or with Cygwin or other Bash implementations on MS Windows too.)
-* Curl must be in the path
-* optional: sha1sum (for export function with autogenerated filenames only)
-
-
-## Installation ##
-
-**Download** the archive i.e. as zip:
-
-https://git-repo.iml.unibe.ch/iml-open-source/bash-rest-api-client/-/archive/master/bash-rest-api-client-master.zip
-
-(see other formats at the download button on https://git-repo.iml.unibe.ch/iml-open-source/bash-rest-api-client)
-
-or **Git clone**
-
-```
-$ git clone https://git-repo.iml.unibe.ch/iml-open-source/bash-rest-api-client.git
-```
-
-Copy the *rest-api-client.sh* anywhere you want.
-
-
-## Usage ##
+# Step 1: source the script
You must source the rest-api-client.sh. Then its functions are usable in the current process.
The "methods" start with "http" dot "[method]".
-You should start with *http.help* to get an overwiew.
+# Step 2: Use http.* functions
+You should start with *http.help* to get an overwiew.
-```
+```sh
#
# step one: source the shell script
#
diff --git a/docs/30_Examples.md b/docs/30_Examples.md
new file mode 100644
index 0000000000000000000000000000000000000000..c3a92f74cda6e6e83a4695481d864882ae46d599
--- /dev/null
+++ b/docs/30_Examples.md
@@ -0,0 +1,112 @@
+# Preparation
+
+A required step is sourcing the script to make the http.* function available in the current shell.
+
+```sh
+# --- source script
+> . ./rest-api-client.sh
+```
+
+Then you can follow the examples.
+
+# A first example
+
+```sh
+# --- init ... to flush anything of a request that was made before
+> http.init
+
+# --- make a GET request ...
+> http.makeRequest GET http://www.iml.unibe.ch
+# OR "http.makeRequest [url]" ... GET is the default
+
+# --- get the result
+> http.getStatuscode
+301
+
+> http.getStatus
+Redirect
+
+# --- view the http response header
+> http.getResponseHeader
+HTTP/1.1 301 Moved Permanently
+Date: Tue, 11 Jan 2022 12:26:37 GMT
+Server: Apache
+Location: https://www.iml.unibe.ch/
+Content-Length: 233
+Connection: close
+Content-Type: text/html; charset=iso-8859-1
+
+# --- view curl data
+> http.getResponseData
+http_code:301
+http_connect:000
+local_ip:172.30.158.65
+local_port:58512
+num_connects:1
+num_redirects:0
+redirect_url:https://www.iml.unibe.ch/
+remote_ip:130.92.30.80
+remote_port:80
+size_download:233
+size_header:209
+size_request:139
+size_upload:0
+speed_download:3405
+speed_upload:0
+ssl_verify_result:0
+time_appconnect:0.000000
+time_connect:0.049925
+time_namelookup:0.024735
+time_pretransfer:0.050054
+time_redirect:0.000000
+time_starttransfer:0.068274
+time_total:0.068411
+url_effective:http://www.iml.unibe.ch/
+
+```
+
+# Icinga API
+
+In that example we have a config for an api access with url, user and password.
+The docs url is not required for functionality. It will be shown on errors.
+
+Imagine, to deploy such a config with Ansible/ Puppet/ on all hosts.
+
+```sh
+# --- data in a config file that is sourced by your script:
+RestApiBaseUrl="https://icinga-endpoint.example.com:5665/v1/"
+RestApiUser="icingaapi"
+RestApiPassword="password-of-Icinga-Api-User"
+RestApiDocs="https://icinga.com/docs/icinga2/latest/doc/12-icinga2-api/"
+```
+
+And now let's access the Icinga API...
+
+```sh
+myHost=( hostname -f )
+
+# --- init:
+http.init
+http.setAuth "${RestApiUser}:${RestApiPassword}"
+http.setBaseUrl "${RestApiBaseUrl}"
+http.setDocs "${RestApiDocs}"
+
+# --- check if my host exists in the monitoring
+# Because we set a base url we can operate with the part behind it
+http.makeRequest GET "objects/hosts/${myHost}"
+
+# set return code of GET action ... $? is 0 on success (2xx status code)
+http.isOk >/dev/null
+
+# --- show a result
+if [ $? -ne 0 ]; then
+ http.getResponse
+ if [ "`http.getStatuscode`" = "000" ]; then
+ echo "ERROR: Unable to reach the Icinga node. Stopping script current monitoring actions."
+ exit 1
+ fi
+ echo "ERROR: host object for ${myHost} is not available on Icinga service (yet) - Status: `http.getStatuscode`"
+ exit 1
+fi
+echo "OK, ${myHost} was found."
+```
diff --git a/docs/_index.md b/docs/_index.md
new file mode 100644
index 0000000000000000000000000000000000000000..5541390c9c284956728423f483189877201c6c62
--- /dev/null
+++ b/docs/_index.md
@@ -0,0 +1,23 @@
+# Description
+
+This is a bash solution to script REST API calls.
+
+The specialties of this component are
+
+* It was build to simplify http calls and handle http response for scripts
+* After making a request the response stays is in memory. There is no output to any file to grep something or to cleanup after usage.
+* Its functions feel a bit like class methods, i.e. http.getResponse to get the response body or http.getResponseHeader for the Http response header
+* This component wraps curl - ist supports any http method
+* works with anonymous requests and Basic Authentication
+* The response can be stored ... and reimported later. After import you can use the http.get* functions to fetch results from the former request.
+* Caching support for GET requests with a given TTL: if you repeat a request to the same url and ttl was not reached yet then you continue with the cached result
+
+Source: https://git-repo.iml.unibe.ch/iml-open-source/bash-rest-api-client
+
+License: GNU GPL 3
+
+# Requirements
+
+* Bash as shell (runs on Linux - or with Cygwin or other Bash implementations on MS Windows too.)
+* Curl must be in the path
+* optional: sha1sum (for export function with autogenerated filenames only)
diff --git a/docs/config.json b/docs/config.json
new file mode 100644
index 0000000000000000000000000000000000000000..d66950af28ba32447ec6cc8af06201ec1dbb3f33
--- /dev/null
+++ b/docs/config.json
@@ -0,0 +1,20 @@
+{
+ "title": "Bash: Rest-Api-Client",
+ "author": "Axel Hahn; Institute for Medical Education; University of Bern",
+ "ignore": {
+ "files": ["30_PHP-client/Plugins/Checks/_skeleton.md"],
+ "folders": ["99_Not_Ready"]
+ },
+ "html": {
+ "auto_landing": false,
+ "auto_toc": true,
+ "date_modified": false,
+ "jump_buttons": true,
+ "edit_on_github_": "iml-it/appmonitor/tree/master/docs",
+ "links": {
+ "GitHub Repo": "https://git-repo.iml.unibe.ch/iml-open-source/bash-rest-api-client"
+ },
+ "theme": "daux-blue",
+ "search": true
+ }
+}
\ No newline at end of file
diff --git a/docs/style.css b/docs/style.css
new file mode 100644
index 0000000000000000000000000000000000000000..aa0563aa4cbe6cf5b2ac363d95eaf12b0e81c96f
--- /dev/null
+++ b/docs/style.css
@@ -0,0 +1,178 @@
+/*
+
+ patch css elements of daux.io blue theme
+
+*/
+
+
+/* ---------- vars ---------- */
+
+:root{
+
+ /* background colors */
+ --bg:none;
+ --bg-body: #fff;
+ --bg-navlinkactive:#f4f4f4;
+ --bg-navlinkactive: linear-gradient(-90deg,rgba(0,0,0,0), rgba(40,60,80,0.05) 30%);
+ --bg-pre:linear-gradient(-4deg, #f0f0f0, #fefefe,#f0f0f0);
+ --bg-toc: #fff;
+
+ /* foreground colors */
+ --color: #234;
+ --navlinkactive:#f33;
+ --title: #aaa;
+
+ --link:#12a;
+ --toclink:rgba(40,60,80,0.8);
+ --pagerlink:rgba(40,60,80,0.8);
+
+ --h1: rgba(40,60,80,0.8);
+ --h1-bottom: 1px solid rgba(40,60,80,0.1);
+ --h2: rgba(40,60,80,0.5);
+ --h3: rgba(40,60,80,0.3);
+
+}
+
+/* ---------- tags ---------- */
+
+body, *{color: var(--color); }
+body{background: var(--bg-body);}
+
+
+a{color: var(--link);}
+a:hover{opacity: 0.7;}
+
+h1>a{ color:var(--title);}
+_h1:nth-child(1){position: fixed; background: var(--bg); box-shadow: 0 0 1em #ccc; padding: 0 1em}
+h1:nth-child(1)>a{ color:var(--navlinkactive); }
+
+.s-content h1{color: var(--h1); font-size: 200%; font-weight:bold; margin-top: 2em; border-bottom: var(--h1-bottom);}
+.s-content h2{color: var(--h2); font-size: 160%; }
+.s-content h3{color: var(--h3); font-size: 140%; }
+.s-content h4{margin: 0; font-size: 100%; text-align: center; background-color: rgba(0,0,0,0.05);padding: 0.3em;}
+
+.s-content pre{
+ background: var(--bg-pre);
+ border: 4px solid #fff;
+ box-shadow: 0 0 2em #eee;
+}
+
+/* ---------- classes ---------- */
+
+.required{color:#a42;}
+.optional{color:#888;}
+
+
+/* ----- top left */
+.Brand,
+.Columns__left {
+ background: var(--bg);
+ border-right: 0px solid #e7e7e9;
+ color: var(--color);
+}
+.Brand{font-size: 200%;
+ background_: linear-gradient(-10deg,#fff 50%, #ddd);
+ background: var(--bg);
+}
+.Columns__right__content {
+ background: var(--bg);
+}
+
+/* ----- Navi left */
+
+.Nav a:hover{
+ background: none;
+ color: var(--navlinkactive) !important;
+}
+
+.Nav__item--active {
+ border-right_: 0.3em solid var(--navlinkactive);
+}
+.Nav__item--active > a{
+ background: var(--bg-navlinkactive);
+ color: var(--navlinkactive);
+}
+.Nav .Nav .Nav__item--active a {
+ color: var(--navlinkactive);
+}
+.Nav .Nav .Nav__item a {
+ opacity: 1;
+}
+.Nav__item--open > a {
+ background-color: var(--bg);
+}
+
+.Nav a[href*="__Welcome"]{
+ background: url("/icons/house.png") no-repeat 10px 4px ;
+ padding-left: 40px;
+}
+.Nav a[href*="__How_does_it_work"]{
+ background: url("/icons/light-bulb.png") no-repeat 10px 4px ;
+ padding-left: 40px;
+}
+
+
+
+
+/* ---------- classes ---------- */
+
+/* FIX smaller fnt size in tables */
+.s-content table {
+ font-size: 1em;
+}
+
+
+/* TOC */
+@media(min-width:1700px){
+ .TableOfContentsContainer{
+ position: fixed;
+ right: 2em;
+ top: 1em;
+ }
+}
+
+.TableOfContentsContainer{
+ border-top-left-radius: 1em;
+ background-color: var(--bg-toc);
+ border-left: 2px solid rgba(0,0,0,0.05);
+ padding: 0em;
+}
+.TableOfContentsContainer__content {
+
+ border: none;
+ font-size: 0.5em;
+
+}
+ul.TableOfContents ul{
+ list-style-type: none;
+ padding-left: 1em;
+}
+.TableOfContentsContainer a{ color:var(--toclink);}
+
+.TableOfContentsContainer__content > .TableOfContents > li + li {
+ border-top: none;
+}
+.TableOfContentsContainer__content > .TableOfContents > li {
+ border-bottom: 1px dashed #ddd;
+}
+
+/* pager - prev .. next */
+.s-content{
+ margin-bottom: 6em;
+}
+.Pager{
+ __border-top: 1px dashed #aaa;
+ margin: 0; padding: 1em;
+ box-shadow: 0 -0.5em 1em #f8f8f8;
+}
+.Pager li a{
+ color:var(--pagerlink);
+ border: 2px solid #f8f8f8;
+ box-shadow: 0.3em 0.3em 0.5em #eee;
+ transition: all ease-in-out 0.3s;
+}
+
+.Pager li a:hover{
+ border: 2px solid #fff;
+ box-shadow: 0.1em 0.1em 0.2em #eee;
+}
\ No newline at end of file