diff --git a/README.md b/README.md
index c7e3d37..b3099eb 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,103 @@
-# fritzbox_exporter
-
-Exports statistics from FritzBox to Prometheus
\ No newline at end of file
+# fritzbox_exporter
+
+Collects data from FRITZ!Box via its SOAP api and exports it to Prometheus via http.
+
+The program is split up into two parts:
+
+## Bash script
+Collects various information from your FRITZ!Box via its SOAP api. It outputs the data to stdout in JSON format.
+
+It can also be used from the command line. Script can output:
+
+- link uptime 
+- connection status
+- maximum upstream sync speed on current connection
+- maximum downstream sync speed on current connection
+- Current downstream bandwidth usage
+- Current upstream bandwidth usage
+- Total download usage on current connection
+- Total upload usage on current connection
+
+This bash script is taken from https://github.com/mrwhale/fritzbox-api
+
+### Requirement
+
+The Universal Plug & Play (UPnP) service must be enabled.
+
+You can do that in the settings: Home Network » Network » Network Settings
+
+Enable "Transmit status information over UPnP"
+
+### Usage
+
+```text
+usage: fritz-api.sh [-f <function>] [-h hostname] [-b rate] [-j] [-d]
+  -f: function to be executed [Default: bandwidthdown]
+  -h: hostname or IP of the FRITZ!Box [Default: fritz.box]
+  -b: rate to display. b, k, m. all in  bytes
+  -j: JSON output
+      Does not accept any functions.
+      Will display all output in JSON format.
+      Useful for running in cron and ingesting into another program
+  -d: enable debug output
+
+functions:
+  linkuptime     connection time in seconds
+  connection     connection status
+  downstream     maximum downstream on current connection (Downstream Sync)
+  upstream       maximum upstream on current connection (Upstream Sync)
+  bandwidthdown  current bandwidth down
+  bandwidthup    current bandwidth up
+  totalbwdown    total downloads
+  totalbwup      total uploads
+
+Example: fritz-api.sh -f downstream -h 192.168.100.1 -b m
+```
+
+### Dependancies
+
+- curl
+- bc
+
+## Python program
+
+This is the actual exporter. It takes the output from the bash script, processes it and exposes it via http (default port 9000) to Prometheus.
+
+### Usage
+
+Configure prometheus.yml:
+
+```text
+- job_name: 'FritzBox'
+
+static_configs:
+- targets: ['localhost:9001']
+```
+
+Start program as background process:
+
+```text
+python3 ./fritzbox_exporter.py &
+```
+
+Use Graphana to display the data.
+
+### Configuration
+
+It can be configured via the file config.yml.
+
+```text
+# Set port (default: 9000)
+port: 9001
+# Set scrape frequency (default: 15 seconds)
+scrape_frequency: 60
+```
+
+### Dependancies
+
+- Python 3
+- subprocess
+- json
+- pyyaml
+- prometheus_client
+
diff --git a/config.yml b/config.yml
new file mode 100644
index 0000000..4dbb355
--- /dev/null
+++ b/config.yml
@@ -0,0 +1,2 @@
+port: 9001
+scrape_frequency: 60
diff --git a/fritz-api.sh b/fritz-api.sh
new file mode 100755
index 0000000..0f22bb2
--- /dev/null
+++ b/fritz-api.sh
@@ -0,0 +1,304 @@
+#!/usr/bin/bash
+
+RC_OK=0
+RC_WARN=1
+RC_CRIT=2
+RC_UNKNOWN=3
+HOSTNAME="fritz.box"
+CHECK="bandwidthdown"
+MY_SCRIPT_NAME=$(basename "$0")
+# Duration we wait for curl response.
+MY_CURL_TIMEOUT="5"
+
+usage(){
+    echo "usage: $MY_SCRIPT_NAME [-f <function>] [-h hostname] [-b rate] [-j] [-d]"
+    echo "  -f: function to be executed [Default: ${CHECK}]"
+    echo "  -h: hostname or IP of the FRITZ!Box [Default: ${HOSTNAME}]"
+    echo "  -b: rate to display. b, k, m. all in  bytes"
+    echo "  -j: JSON output"
+    echo "      Does not accept any functions."
+    echo "      Will display all output in JSON format."
+    echo "      Useful for running in cron and ingesting into another program"
+    echo "  -d: enable debug output"
+    echo
+    echo "functions:"
+    echo "  linkuptime     connection time in seconds"
+    echo "  connection     connection status"
+    echo "  downstream     maximum downstream on current connection (Downstream Sync)"
+    echo "  upstream       maximum upstream on current connection (Upstream Sync)"
+    echo "  bandwidthdown  current bandwidth down"
+    echo "  bandwidthup    current bandwidth up"
+    echo "  totalbwdown    total downloads"
+    echo "  totalbwup      total uploads"
+    echo
+    echo "Example: $MY_SCRIPT_NAME -f downstream -h 192.168.100.1 -b m"
+    exit ${RC_UNKNOWN}
+}
+
+require_number()
+{
+    VAR=$1
+    MSG=$2
+
+    if [[ ! "${VAR}" =~ ^[0-9]+$ ]] ; then
+        echo "ERROR - ${MSG} (${VAR})"
+        exit ${RC_UNKNOWN}
+    fi
+}
+
+find_xml_value()
+{
+    XML=$1
+    VAL=$2
+
+    echo "${XML}" | grep "${VAL}" | sed "s/<${VAL}>\([^<]*\)<\/${VAL}>/\1/"
+}
+
+check_greater()
+{
+    VAL=$1
+    WARN=$2
+    CRIT=$3
+    MSG=$4
+
+    if [ "${VAL}" -gt "${WARN}" ] || [ "${WARN}" -eq 0 ]; then
+        echo "OK - ${MSG}"
+        exit ${RC_OK}
+    elif [ "${VAL}" -gt "${CRIT}" ] || [ "${CRIT}" -eq 0 ]; then
+        echo "WARNING - ${MSG}"
+        exit ${RC_WARN}
+    else
+        echo "CRITICAL - ${MSG}"
+        exit ${RC_CRIT}
+    fi
+}
+
+print_json(){
+    VERB1=GetStatusInfo
+    URL1=WANIPConn1
+    NS1=WANIPConnection
+
+    VERB2=GetCommonLinkProperties
+    URL2=WANCommonIFC1
+    NS2=WANCommonInterfaceConfig
+
+    VERB3=GetAddonInfos
+    URL3=WANCommonIFC1
+    NS3=WANCommonInterfaceConfig
+
+    STATUS1=$(curl --max-time "${MY_CURL_TIMEOUT}" "http://${HOSTNAME}:${PORT}/igdupnp/control/${URL1}" \
+        -H "Content-Type: text/xml; charset=\"utf-8\"" \
+        -H "SoapAction:urn:schemas-upnp-org:service:${NS1}:1#${VERB1}" \
+        -d "<?xml version='1.0' encoding='utf-8'?> <s:Envelope s:encodingStyle='http://schemas.xmlsoap.org/soap/encoding/' xmlns:s='http://schemas.xmlsoap.org/soap/envelope/'> <s:Body> <u:${VERB1} xmlns:u=\"urn:schemas-upnp-org:service:${NS1}:1\" /> </s:Body> </s:Envelope>" \
+        -s)
+
+    if [ "$?" -ne "0" ]; then
+        printf '{"Connection":"ERROR - Could not retrieve status from FRITZ!Box"}'
+        exit ${RC_CRIT}
+    fi
+
+
+    STATUS2=$(curl --max-time "${MY_CURL_TIMEOUT}" "http://${HOSTNAME}:${PORT}/igdupnp/control/${URL2}" \
+        -H "Content-Type: text/xml; charset=\"utf-8\"" \
+        -H "SoapAction:urn:schemas-upnp-org:service:${NS2}:1#${VERB2}" \
+        -d "<?xml version='1.0' encoding='utf-8'?> <s:Envelope s:encodingStyle='http://schemas.xmlsoap.org/soap/encoding/' xmlns:s='http://schemas.xmlsoap.org/soap/envelope/'> <s:Body> <u:${VERB2} xmlns:u=\"urn:schemas-upnp-org:service:${NS2}:1\" /> </s:Body> </s:Envelope>" \
+        -s)
+
+    if [ "$?" -ne "0" ]; then
+        printf '{"Connection":"ERROR - Could not retrieve status from FRITZ!Box"}'
+        exit ${RC_CRIT}
+    fi
+
+    STATUS3=$(curl --max-time "${MY_CURL_TIMEOUT}" "http://${HOSTNAME}:${PORT}/igdupnp/control/${URL3}" \
+        -H "Content-Type: text/xml; charset=\"utf-8\"" \
+        -H "SoapAction:urn:schemas-upnp-org:service:${NS3}:1#${VERB3}" \
+        -d "<?xml version='1.0' encoding='utf-8'?> <s:Envelope s:encodingStyle='http://schemas.xmlsoap.org/soap/encoding/' xmlns:s='http://schemas.xmlsoap.org/soap/envelope/'> <s:Body> <u:${VERB3} xmlns:u=\"urn:schemas-upnp-org:service:${NS3}:1\" /> </s:Body> </s:Envelope>" \
+        -s)
+
+    if [ "$?" -ne "0" ]; then
+        printf '{"Connection":"ERROR - Could not retrieve status from FRITZ!Box"}'
+        exit ${RC_CRIT}
+    fi
+    CONNECTIONSTATUS=$(find_xml_value "${STATUS1}" NewConnectionStatus)
+    UPTIME=$(find_xml_value "${STATUS1}" NewUptime)
+    DOWNSTREAM=$(find_xml_value "${STATUS2}" NewLayer1DownstreamMaxBitRate)
+    UPSTREAM=$(find_xml_value "${STATUS2}" NewLayer1UpstreamMaxBitRate)
+    BANDWIDTHDOWNBYTES=$(find_xml_value "${STATUS3}" NewByteReceiveRate)
+    BANDWIDTHUPBYTES=$(find_xml_value "${STATUS3}" NewByteSendRate)
+    TOTALBWDOWNBYTES=$(find_xml_value "${STATUS3}" NewTotalBytesReceived)
+    TOTALBWUPBYTES=$(find_xml_value "${STATUS3}" NewTotalBytesSent)
+    if [ "${DEBUG}" -eq 1 ]; then
+        echo "DEBUG - Status:"
+        echo "$CONNECTIONSTATUS"
+        echo "$UPTIME"
+        echo "$DOWNSTREAM"
+        echo "$UPSTREAM"
+        echo "$BANDWIDTHDOWNBYTES"
+        echo "$BANDWIDTHUPBYTES"
+        echo "$TOTALBWDOWNBYTES"
+        echo "$TOTALBWUPBYTES"
+    fi
+    printf '{"Connection":"%s","Uptime":%d,"UpstreamSync":%d,"DownstreamSync":%d,"UploadBW":%d,"DownloadBW":%d,"TotalUploads":%d,"TotalDownloads":%d}\n' "$CONNECTIONSTATUS" "$UPTIME" "$UPSTREAM" "$DOWNSTREAM" "$BANDWIDTHUPBYTES" "$BANDWIDTHDOWNBYTES" "$TOTALBWUPBYTES" "$TOTALBWDOWNBYTES"
+    exit #exit so we dont get unknown service check error
+}
+
+
+# Check Commands
+command -v curl >/dev/null 2>&1 || { echo >&2 "ERROR: 'curl' is needed. Please install 'curl'. More details can be found at https://curl.haxx.se/"; exit 1; }
+command -v bc >/dev/null 2>&1 || { echo >&2 "ERROR: 'bc' is needed. Please install 'bc'."; exit 1; }
+
+PORT=49000
+DEBUG=0
+WARN=0
+CRIT=0
+RATE=1
+PRE=
+
+while getopts h:jf:db: OPTNAME; do
+    case "${OPTNAME}" in
+    h)
+        HOSTNAME="${OPTARG}"
+        ;;
+    j)
+        CHECK=""
+        print_json
+        ;;
+    f)
+        CHECK="${OPTARG}"
+        ;;
+    d)
+        DEBUG=1
+        ;;
+    b)
+        case "${OPTARG}" in
+        b)
+            RATE=1
+            PRE=
+            ;;
+        k)
+            RATE=1000
+            PRE=kilo
+            ;;
+        m)
+            RATE=1000000
+            PRE=mega
+            ;;
+        *)
+            echo "Wrong prefix"
+            ;;
+        esac
+        ;;
+    *)
+        echo "$OPTNAME"
+        usage
+        ;;
+    esac
+done
+
+case ${CHECK} in
+    linkuptime|connection)
+        VERB=GetStatusInfo
+        URL=WANIPConn1
+        NS=WANIPConnection
+        ;;
+    downstream|upstream)
+        VERB=GetCommonLinkProperties
+        URL=WANCommonIFC1
+        NS=WANCommonInterfaceConfig
+        ;;
+    bandwidthup|bandwidthdown|totalbwup|totalbwdown)
+        VERB=GetAddonInfos
+        URL=WANCommonIFC1
+        NS=WANCommonInterfaceConfig
+        ;;
+    *)
+        echo "ERROR - Unknown service check ${CHECK}"
+        exit ${RC_UNKNOWN}
+        ;;
+esac
+
+STATUS=$(curl --max-time "${MY_CURL_TIMEOUT}" "http://${HOSTNAME}:${PORT}/igdupnp/control/${URL}" \
+    -H "Content-Type: text/xml; charset=\"utf-8\"" \
+    -H "SoapAction:urn:schemas-upnp-org:service:${NS}:1#${VERB}" \
+    -d "<?xml version='1.0' encoding='utf-8'?> <s:Envelope s:encodingStyle='http://schemas.xmlsoap.org/soap/encoding/' xmlns:s='http://schemas.xmlsoap.org/soap/envelope/'> <s:Body> <u:${VERB} xmlns:u=\"urn:schemas-upnp-org:service:${NS}:1\" /> </s:Body> </s:Envelope>" \
+    -s)
+
+if [ "$?" -ne "0" ]; then
+    echo "ERROR - Could not retrieve status from FRITZ!Box"
+    exit ${RC_CRIT}
+fi
+
+if [ ${DEBUG} -eq 1 ]; then
+    echo "DEBUG - Status:"
+    echo "${STATUS}"
+fi
+
+case ${CHECK} in
+linkuptime)
+    UPTIME=$(find_xml_value "${STATUS}" NewUptime)
+    require_number "${UPTIME}" "Could not parse uptime"
+    HOURS=$((${UPTIME}/3600))
+    MINUTES=$(((${UPTIME}-(${HOURS}*3600))/60))
+    SECONDS=$((${UPTIME}-(${HOURS}*3600)-(${MINUTES}*60)))
+    RESULT="Link uptime ${UPTIME} seconds [${HOURS}h ${MINUTES}m ${SECONDS}s]"
+    echo "${RESULT}"
+    ;;
+upstream)
+    UPSTREAMBITS=$(find_xml_value "${STATUS}" NewLayer1UpstreamMaxBitRate)
+    require_number "${UPSTREAMBITS}" "Could not parse upstream"
+    UPSTREAM=$(echo "scale=3;$UPSTREAMBITS/$RATE" | bc)
+    RESULT="Upstream ${UPSTREAM} ${PRE}bits per second"
+    echo "${RESULT}"
+    ;;
+downstream)
+    DOWNSTREAMBITS=$(find_xml_value "${STATUS}" NewLayer1DownstreamMaxBitRate)
+    require_number "${DOWNSTREAMBITS}" "Could not parse downstream"
+    DOWNSTREAM=$(echo "scale=3;$DOWNSTREAMBITS/$RATE" | bc)
+    RESULT="Downstream ${DOWNSTREAM} ${PRE}bits per second"
+    echo "${RESULT}"
+    ;;
+bandwidthdown)
+    BANDWIDTHDOWNBYTES=$(find_xml_value "${STATUS}" NewByteReceiveRate)
+    BANDWIDTHDOWN=$(echo "scale=3;$BANDWIDTHDOWNBYTES/$RATE" | bc)
+    RESULT="Current download ${BANDWIDTHDOWN} ${PRE}bytes per second"
+    echo "${RESULT}"
+    ;;
+bandwidthup)
+    BANDWIDTHUPBYTES=$(find_xml_value "${STATUS}" NewByteSendRate)
+    BANDWIDTHUP=$(echo "scale=3;$BANDWIDTHUPBYTES/$RATE" | bc)
+    RESULT="Current upload ${BANDWIDTHUP} ${PRE}bytes per second"
+    echo "${RESULT}"
+    ;;
+totalbwdown)
+    TOTALBWDOWNBYTES=$(find_xml_value "${STATUS}" NewTotalBytesReceived)
+    TOTALBWDOWN=$(echo "scale=3;$TOTALBWDOWNBYTES/$RATE" | bc)
+    RESULT="total download ${TOTALBWDOWN} ${PRE}bytes"
+    echo "$RESULT"
+    ;;
+totalbwup)
+    TOTALBWUPBYTES=$(find_xml_value "${STATUS}" NewTotalBytesSent)
+    TOTALBWUP=$(echo "scale=3;$TOTALBWUPBYTES/$RATE" | bc)
+    RESULT="total uploads ${TOTALBWUP} ${PRE}bytes"
+    echo "$RESULT"
+    ;;
+connection)
+    STATE=$(find_xml_value "${STATUS}" NewConnectionStatus)
+    case ${STATE} in
+    Connected)
+        echo "OK - Connected"
+        exit ${RC_OK}
+        ;;
+    Connecting | Disconnected)
+        echo "WARNING - Connection lost"
+        exit ${RC_WARN}
+        ;;
+    *)
+        echo "ERROR - Unknown connection state ${STATE}"
+        exit ${RC_UNKNOWN}
+        ;;
+    esac
+    ;;
+*)
+    echo "ERROR - Unknown service check ${CHECK}"
+    exit ${RC_UNKNOWN}
+esac
diff --git a/fritzbox_exporter.py b/fritzbox_exporter.py
new file mode 100644
index 0000000..2913597
--- /dev/null
+++ b/fritzbox_exporter.py
@@ -0,0 +1,104 @@
+##################################################################################
+#                                                                                #
+# Takes the output from fritz-api.sh , processes it and exports it to Promethues #
+# via http on default port 9000 (can be configured via config.yml                #
+#                                                                                #
+# (C)2022 M.T. Konstapel https://meezenest.nl/mees                               #
+#                                                                                # 
+# This file is part of fritzbox_exporter.                                        #
+#                                                                                #
+#    fritzbox_exporter is free software: you can redistribute it and/or modify   #
+#    it under the terms of the GNU General Public License as published by        #
+#    the Free Software Foundation, either version 3 of the License, or           #
+#    (at your option) any later version.                                         #
+#                                                                                #
+#    fritzbox_exporter is distributed in the hope that it will be useful,        #
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of              #
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
+#    GNU General Public License for more details.                                #
+#                                                                                #  
+#    You should have received a copy of the GNU General Public License           #
+#    along with fritzbox_exporter. If not, see <https://www.gnu.org/licenses/>.  #
+#                                                                                #
+##################################################################################
+
+import time
+import random
+import subprocess
+import json
+from os import path
+import yaml
+from prometheus_client.core import GaugeMetricFamily, REGISTRY, CounterMetricFamily
+from prometheus_client import start_http_server
+totalRandomNumber = 0
+
+# Collect Fritzbox data for the first time. This way, the json_object is defined globally. This is not the proper way to do it, but it works.
+result = subprocess.run(['./fritz-api.sh', '-j'], stdout=subprocess.PIPE)
+#convert string to object
+json_object = json.loads(result.stdout)
+
+class Fritzbox_collector(object):
+    def __init__(self):
+        pass
+    def collect(self):
+        # Connection state
+        if json_object["Connection"] in ['Connected']:
+            Fritzbox_connection_state = 2
+        else:
+            Fritzbox_connection_state = 1
+        
+        gauge = GaugeMetricFamily("fritz_connect_state", "Fritzbox connection state (1=not connected, 2=connected)", labels=["Fritzbox"])
+        gauge.add_metric(['1'], Fritzbox_connection_state)
+        yield gauge
+        
+        gauge = GaugeMetricFamily("fritz_down_speed", "Fritzbox downlink speed", labels=["Fritzbox"])
+        gauge.add_metric(['1'], json_object["DownstreamSync"])
+        yield gauge
+        
+        gauge = GaugeMetricFamily("fritz_up_speed", "Fritzbox uplink speed", labels=["Fritzbox"])
+        gauge.add_metric(['1'], json_object["UpstreamSync"])
+        yield gauge
+        
+        count = CounterMetricFamily("fritz_uptime", "Fritzbox uptime", labels=['Fritzbox'])
+        count.add_metric(['1'], json_object["Uptime"])
+        yield count
+        
+        count = CounterMetricFamily("fritz_upload_bw", "Fritzbox upload BW", labels=['Fritzbox'])
+        count.add_metric(['1'], json_object["UploadBW"])
+        yield count
+        
+        count = CounterMetricFamily("fritz_download_bw", "Fritzbox download BW", labels=['Fritzbox'])
+        count.add_metric(['1'], json_object["DownloadBW"])
+        yield count
+        
+        count = CounterMetricFamily("fritz_total_uploads", "Fritzbox total uploads", labels=['Fritzbox'])
+        count.add_metric(['1'], json_object["TotalUploads"])
+        yield count
+        
+        count = CounterMetricFamily("fritz_total_downloads", "Fritzbox total downloads", labels=['Fritzbox'])
+        count.add_metric(['1'], json_object["TotalDownloads"])
+        yield count        
+
+if __name__ == "__main__":
+    port = 9000
+    frequency = 15
+    if path.exists('config.yml'):
+        with open('config.yml', 'r') as config_file:
+            try:
+                config = yaml.safe_load(config_file)
+                port = int(config['port'])
+                frequency = config['scrape_frequency']
+            except yaml.YAMLError as error:
+                print(error)
+
+    start_http_server(port)
+    REGISTRY.register(Fritzbox_collector())
+
+    while True: 
+        # Collect Fritzbox data
+        result = subprocess.run(['./fritz-api.sh', '-j'], stdout=subprocess.PIPE)
+        #convert string to json object
+        json_object = json.loads(result.stdout)
+        
+        # period between collection
+        time.sleep(frequency)