From ef2f90fc6f3354db0dc1bca083af8cf5a48501dc Mon Sep 17 00:00:00 2001
From: louis <louis@systemli.org>
Date: Fri, 11 Jan 2019 20:05:26 +0100
Subject: [PATCH] add support for basic metric exporting

---
 README.md                  |  4 ++-
 config.yml.dist            |  2 ++
 go.mod                     | 10 ++++--
 go.sum                     | 38 ++++++++++++++++++++++
 internal/api/api.go        |  2 ++
 internal/api/prometheus.go | 64 ++++++++++++++++++++++++++++++++++++++
 internal/model/config.go   | 18 ++++++-----
 main.go                    | 16 ++++++++++
 8 files changed, 144 insertions(+), 10 deletions(-)
 create mode 100644 internal/api/prometheus.go

diff --git a/README.md b/README.md
index 2ec82529..ec6fbb8e 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,8 @@ secret: "slorp-panfil-becall-dorp-hashab-incus-biter-lyra-pelage-sarraf-drunk"
 # twitter configuration
 twitter_consumer_key: ""
 twitter_consumer_secret: ""
-
+# listen port for prometheus metrics exporter
+metrics_listen: ":8181"
 ```
 
 We use [viper](https://github.com/spf13/viper). That means you can use any of the supported
@@ -54,6 +55,7 @@ The following env vars can be used:
 * TICKER_SECRET
 * TICKER_TWITTER_CONSUMER_KEY
 * TICKER_TWITTER_CONSUMER_SECRET
+* TICKER_METRICS_LISTEN
 
 ## Testing
 
diff --git a/config.yml.dist b/config.yml.dist
index db5dcff4..ee911118 100644
--- a/config.yml.dist
+++ b/config.yml.dist
@@ -11,3 +11,5 @@ secret: "slorp-panfil-becall-dorp-hashab-incus-biter-lyra-pelage-sarraf-drunk"
 # twitter configuration
 twitter_consumer_key: ""
 twitter_consumer_secret: ""
+# listen port for prometheus metrics exporter
+metrics_listen: ":8181"
diff --git a/go.mod b/go.mod
index 192d3942..a97f8546 100644
--- a/go.mod
+++ b/go.mod
@@ -16,6 +16,8 @@ require (
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
 	github.com/gin-contrib/cors v0.0.0-20190101123304-5e7acb10687f
 	github.com/gin-gonic/gin v1.3.0
+	github.com/go-logfmt/logfmt v0.4.0 // indirect
+	github.com/gogo/protobuf v1.2.0 // indirect
 	github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db // indirect
 	github.com/google/go-querystring v1.0.0 // indirect
 	github.com/labstack/echo v3.3.5+incompatible // indirect
@@ -26,6 +28,10 @@ require (
 	github.com/onsi/ginkgo v1.7.0 // indirect
 	github.com/onsi/gomega v1.4.3 // indirect
 	github.com/pkg/errors v0.8.1
+	github.com/prometheus/client_golang v0.9.2
+	github.com/prometheus/client_model v0.0.0-20190109181635-f287a105a20e // indirect
+	github.com/prometheus/common v0.0.0-20190107103113-2998b132700a // indirect
+	github.com/prometheus/procfs v0.0.0-20190104112138-b1a0a9a36d74 // indirect
 	github.com/sethvargo/go-password v0.1.2
 	github.com/sirupsen/logrus v1.3.0
 	github.com/spf13/afero v1.2.0 // indirect
@@ -39,8 +45,8 @@ require (
 	github.com/vmihailenco/msgpack v4.0.1+incompatible // indirect
 	go.etcd.io/bbolt v1.3.0 // indirect
 	golang.org/x/crypto v0.0.0-20190103213133-ff983b9c42bc
-	golang.org/x/net v0.0.0-20190107210223-45ffb0cd1ba0 // indirect
-	golang.org/x/sys v0.0.0-20190108104531-7fbe1cd0fcc2 // indirect
+	golang.org/x/net v0.0.0-20190110044637-be1c187aa6c6 // indirect
+	golang.org/x/sys v0.0.0-20190109145017-48ac38b7c8cb // indirect
 	google.golang.org/appengine v1.4.0 // indirect
 	gopkg.in/airbrake/gobrake.v2 v2.0.9 // indirect
 	gopkg.in/appleboy/gofight.v2 v2.0.0 // indirect
diff --git a/go.sum b/go.sum
index 1a979ba5..d518b7fe 100644
--- a/go.sum
+++ b/go.sum
@@ -4,6 +4,8 @@ github.com/DataDog/zstd v1.3.5 h1:DtpNbljikUepEPD16hD4LvIcmhnhdLTiW/5pHgbmp14=
 github.com/DataDog/zstd v1.3.5/go.mod h1:1jcaCB/ufaK+sKp1NBhlGmpz41jOoPQ35bpF36t7BBo=
 github.com/Sereal/Sereal v0.0.0-20181211220259-509a78ddbda3 h1:Xu7z47ZiE/J+sKXHZMGxEor/oY2q6dq51fkO0JqdSwY=
 github.com/Sereal/Sereal v0.0.0-20181211220259-509a78ddbda3/go.mod h1:D0JMgToj/WdxCgd30Kc1UcA9E+WdZoJqeVOuYW7iTBM=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/appleboy/gin-jwt v0.0.0-20180621072952-4b14dcd1ac53 h1:sqk1bMe9hr9DimCXUUr8yZTABImKT6YsXYZfNR5TZMo=
 github.com/appleboy/gin-jwt v0.0.0-20180621072952-4b14dcd1ac53/go.mod h1:pG7tv32IEe5wEh1NSQzcyD02ZZAqZWp07RdGiIhgaRQ=
 github.com/appleboy/gin-jwt v2.5.0+incompatible h1:oLQTP1fiGDoDKoC2UDqXD9iqCP44ABIZMMenfH/xCqw=
@@ -15,6 +17,8 @@ github.com/asdine/storm v2.1.1+incompatible h1:j/IqbSqHVmrU908a11QGf+2Iv7pr7NXiy
 github.com/asdine/storm v2.1.1+incompatible/go.mod h1:RarYDc9hq1UPLImuiXK3BIWPJLdIygvV3PsInK0FbVQ=
 github.com/asdine/storm v2.1.2+incompatible h1:dczuIkyqwY2LrtXPz8ixMrU/OFgZp71kbKTHGrXYt/Q=
 github.com/asdine/storm v2.1.2+incompatible/go.mod h1:RarYDc9hq1UPLImuiXK3BIWPJLdIygvV3PsInK0FbVQ=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 h1:xJ4a3vCFaGF/jqvzLMYoU8P317H5OQ+Via4RmuPwCS0=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23 h1:D21IyuvjDCshj1/qq+pCNd3VZOAEI9jy6Bi131YlXgI=
 github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23/go.mod h1:bbYlZJ7hK1yFx9hf58LP0zeX7UjIGs20ufpu3evjr+s=
 github.com/cenkalti/backoff v0.0.0-20150814094333-4dc77674acea h1:t3NrrH++iWzB9ZeRxce7o4/eJhRWpZYueEg/Kr1YFM0=
@@ -55,6 +59,12 @@ github.com/gin-gonic/gin v0.0.0-20180703091708-85221af84cf6 h1:y+oPvs3tGkHfI0XMH
 github.com/gin-gonic/gin v0.0.0-20180703091708-85221af84cf6/go.mod h1:7cKuhb5qV2ggCFctp2fJQ+ErvciLZrIeoOSOm6mUr7Y=
 github.com/gin-gonic/gin v1.3.0 h1:kCmZyPklC0gVdL728E6Aj20uYBJV93nj/TkwBTKhFbs=
 github.com/gin-gonic/gin v1.3.0/go.mod h1:7cKuhb5qV2ggCFctp2fJQ+ErvciLZrIeoOSOm6mUr7Y=
+github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
+github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
+github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
+github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
+github.com/gogo/protobuf v1.2.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db h1:woRePGFeVFfLKN/pOkfl+p/TAqKOfFu+7KPlMVpok/w=
@@ -69,7 +79,9 @@ github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/json-iterator/go v1.1.5 h1:gL2yXlmiIo4+t+y32d4WGwOjKGYcGOuyrg46vadswDE=
 github.com/json-iterator/go v1.1.5/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
+github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/labstack/echo v3.3.5+incompatible h1:9PfxPUmasKzeJor9uQTaXLT6WUG/r+vSTmvXxvv3JO4=
 github.com/labstack/echo v3.3.5+incompatible/go.mod h1:0INS7j/VjnFxD4E2wkz67b8cVwCLbBmJyDaka6Cmk1s=
 github.com/labstack/gommon v0.2.8 h1:JvRqmeZcfrHC5u6uVleB4NxxNbzx6gpbJiQknDbKQu0=
@@ -80,6 +92,8 @@ github.com/mattn/go-colorable v0.0.9 h1:UVL0vNpWh04HeJXV0KLcaT7r06gOH2l4OW6ddYRU
 github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
 github.com/mattn/go-isatty v0.0.4 h1:bnP0vzxcAdeI1zdubAl5PjU6zsERjGZb7raWodagDYs=
 github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
+github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
+github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/mitchellh/gox v0.4.0 h1:lfGJxY7ToLJQjHHwi0EX6uYBdK78egf954SQl13PQJc=
 github.com/mitchellh/gox v0.4.0/go.mod h1:Sd9lOJ0+aimLBi73mGofS1ycjY8lL3uZM3JPS42BGNg=
 github.com/mitchellh/iochan v1.0.0 h1:C+X3KsSTLFVBr/tK1eYN/vs4rJcvsiLU338UhYPJWeY=
@@ -90,6 +104,7 @@ github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
+github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.7.0 h1:WSHQ+IS43OoUrWtD1/bbclrwK8TTH5hzp+umCiuxHgs=
 github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
@@ -99,16 +114,31 @@ github.com/pelletier/go-toml v1.2.0 h1:T5zMGML61Wp+FlcbWjRDT7yAxhJNAiPPLOFECq181
 github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/pkg/errors v0.0.0-20170505043639-c605e284fe17 h1:chPfVn+gpAM5CTpTyVU9j8J+xgRGwmoDlNDLjKnJiYo=
 github.com/pkg/errors v0.0.0-20170505043639-c605e284fe17/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
+github.com/prometheus/client_golang v0.9.2 h1:awm861/B8OKDd2I/6o1dy3ra4BamzKhYOiGItCeZ740=
+github.com/prometheus/client_golang v0.9.2/go.mod h1:OsXs2jCmiKlQ1lTBmv21f2mNfw4xf/QclQDMrYNZzcM=
+github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
+github.com/prometheus/client_model v0.0.0-20190109181635-f287a105a20e h1:/F8S20P9KteTOlxM8k6xWtTiY+u32wemAL2/zilHKzw=
+github.com/prometheus/client_model v0.0.0-20190109181635-f287a105a20e/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
+github.com/prometheus/common v0.0.0-20181126121408-4724e9255275/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
+github.com/prometheus/common v0.0.0-20190107103113-2998b132700a h1:bLKgQQEViHvsdgCwCGyyga8npETKygQ8b7c/28mJ8tw=
+github.com/prometheus/common v0.0.0-20190107103113-2998b132700a/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
+github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
+github.com/prometheus/procfs v0.0.0-20181204211112-1dc9a6cbc91a/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
+github.com/prometheus/procfs v0.0.0-20190104112138-b1a0a9a36d74 h1:d1Xoc24yp/pXmWl2leBiBA+Tptce6cQsA+MMx/nOOcY=
+github.com/prometheus/procfs v0.0.0-20190104112138-b1a0a9a36d74/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/sethvargo/go-password v0.1.0 h1:J3NXLAa3MrJHmTVzquNpjWG3kimX532TMWEBzs+zs8w=
 github.com/sethvargo/go-password v0.1.0/go.mod h1:qKHfdSjT26DpHQWHWWR5+X4BI45jT31dg6j4RI2TEb0=
 github.com/sethvargo/go-password v0.1.2 h1:fhBF4thiPVKEZ7R6+CX46GWJiPyCyXshbeqZ7lqEeYo=
 github.com/sethvargo/go-password v0.1.2/go.mod h1:qKHfdSjT26DpHQWHWWR5+X4BI45jT31dg6j4RI2TEb0=
 github.com/sirupsen/logrus v0.0.0-20180523074243-ea8897e79973 h1:3AJZYTzw3gm3TNTt30x0CCKD7GOn2sdd50Hn35fQkGY=
 github.com/sirupsen/logrus v0.0.0-20180523074243-ea8897e79973/go.mod h1:pMByvHTf9Beacp5x1UXfOR9xyW/9antXMhjMPG0dEzc=
+github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.3.0 h1:hI/7Q+DtNZ2kINb6qt/lS+IyXnHQe9e90POfeewL/ME=
 github.com/sirupsen/logrus v1.3.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
@@ -156,25 +186,33 @@ golang.org/x/crypto v0.0.0-20190103213133-ff983b9c42bc h1:F5tKCVGp+MUAHhKp5MZtGq
 golang.org/x/crypto v0.0.0-20190103213133-ff983b9c42bc/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20181201002055-351d144fa1fc/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190107210223-45ffb0cd1ba0 h1:1DW40AJQ7AP4nY6ORUGUdkpXyEC9W2GAXcOPaMZK0K8=
 golang.org/x/net v0.0.0-20190107210223-45ffb0cd1ba0/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190110044637-be1c187aa6c6/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4 h1:YUO/7uOKsKeq9UokNS62b8FYywz3ker1l1vDZRCRefw=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a h1:1n5lsVfiQW3yfsRGu98756EH1YthsFqr/5mxHduZW2A=
 golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181228144115-9a3f9b0469bb/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190108104531-7fbe1cd0fcc2 h1:ku9Kvp2ZBWAz3GyvuUH3UV1bZCd7RxH0Qf1epWfIDKc=
 golang.org/x/sys v0.0.0-20190108104531-7fbe1cd0fcc2/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190109145017-48ac38b7c8cb h1:1w588/yEchbPNpa9sEvOcMZYbWHedwJjg4VOAdDHWHk=
+golang.org/x/sys v0.0.0-20190109145017-48ac38b7c8cb/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 google.golang.org/appengine v1.4.0 h1:/wp5JvzpHIxhs/dumFmF7BXTf3Z+dd4uXta4kVyO508=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 gopkg.in/airbrake/gobrake.v2 v2.0.9 h1:7z2uVWwn7oVeeugY1DtlPAy5H+KYgB1KeKTnqjNatLo=
 gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
+gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/appleboy/gofight.v2 v2.0.0 h1:tbwzV5a3rkoA7M+INNFZ0l1FqsbzVYbWKmJIcwpajLY=
 gopkg.in/appleboy/gofight.v2 v2.0.0/go.mod h1:/oCUdVhE1UdRqheD5PmH/2GBvcaxShR7/cDBUoSk2wQ=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
diff --git a/internal/api/api.go b/internal/api/api.go
index f78b2551..14fa9579 100644
--- a/internal/api/api.go
+++ b/internal/api/api.go
@@ -25,6 +25,8 @@ func API() *gin.Engine {
 
 	r.Use(cors.New(config))
 
+	r.Use(NewPrometheus())
+
 	// the jwt middleware
 	authMiddleware := AuthMiddleware()
 
diff --git a/internal/api/prometheus.go b/internal/api/prometheus.go
new file mode 100644
index 00000000..f2f2ccf4
--- /dev/null
+++ b/internal/api/prometheus.go
@@ -0,0 +1,64 @@
+package api
+
+import (
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/prometheus/client_golang/prometheus"
+	log "github.com/sirupsen/logrus"
+)
+
+var (
+	reqCnt = prometheus.NewCounterVec(prometheus.CounterOpts{
+		Name: "http_requests_total",
+		Help: "The total number of requests",
+	}, []string{"handler", "origin", "code"})
+
+	reqDur = prometheus.NewSummaryVec(prometheus.SummaryOpts{
+		Name: "http_request_duration_seconds",
+		Help: "The HTTP requests latency in seconds",
+	}, []string{"handler", "origin", "code"})
+)
+
+// NewPrometheus returns the Gin Middleware for collecting basic http metrics.
+func NewPrometheus() gin.HandlerFunc {
+	err := prometheus.Register(reqCnt)
+	if err != nil {
+		log.WithError(err).Error(`"reqCnt" could not be registered in Prometheus`)
+	}
+	err = prometheus.Register(reqDur)
+	if err != nil {
+		log.WithError(err).Error(`"reqDur" could not be registered in Prometheus`)
+	}
+
+	return func(c *gin.Context) {
+		start := time.Now()
+
+		c.Next()
+
+		handler := prepareHandler(c.HandlerName())
+		origin := prepareOrigin(c)
+		code := strconv.Itoa(c.Writer.Status())
+
+		elapsed := float64(time.Since(start)) / float64(time.Second)
+		reqDur.WithLabelValues(handler, origin, code).Observe(elapsed)
+		reqCnt.WithLabelValues(handler, origin, code).Inc()
+	}
+}
+
+func prepareHandler(h string) string {
+	s := strings.Split(h, ".")
+
+	return s[len(s)-1]
+}
+
+func prepareOrigin(c *gin.Context) string {
+	domain, err := GetDomain(c)
+	if err != nil {
+		return ""
+	}
+
+	return domain
+}
diff --git a/internal/model/config.go b/internal/model/config.go
index 718aa115..67023621 100644
--- a/internal/model/config.go
+++ b/internal/model/config.go
@@ -2,10 +2,11 @@ package model
 
 import (
 	"fmt"
-	"github.com/sethvargo/go-password/password"
-	"github.com/spf13/viper"
 	"path/filepath"
 	"strings"
+
+	"github.com/sethvargo/go-password/password"
+	"github.com/spf13/viper"
 )
 
 var Config *config
@@ -18,6 +19,7 @@ type config struct {
 	Database              string `mapstructure:"database"`
 	TwitterConsumerKey    string `mapstructure:"twitter_consumer_key"`
 	TwitterConsumerSecret string `mapstructure:"twitter_consumer_secret"`
+	MetricsListen         string `mapstructure:"metrics_listen"`
 }
 
 //NewConfig returns config with default values.
@@ -25,11 +27,12 @@ func NewConfig() *config {
 	secret, _ := password.Generate(64, 12, 12, false, false)
 
 	return &config{
-		Listen:    ":8080",
-		LogLevel:  "debug",
-		Initiator: "admin@systemli.org",
-		Secret:    secret,
-		Database:  "ticker.db",
+		Listen:        ":8080",
+		LogLevel:      "debug",
+		Initiator:     "admin@systemli.org",
+		Secret:        secret,
+		Database:      "ticker.db",
+		MetricsListen: ":8181",
 	}
 }
 
@@ -49,6 +52,7 @@ func LoadConfig(path string) *config {
 	viper.SetDefault("initiator", c.Initiator)
 	viper.SetDefault("secret", c.Secret)
 	viper.SetDefault("database", c.Database)
+	viper.SetDefault("metrics_listen", c.MetricsListen)
 	viper.SetDefault("twitter_consumer_key", "")
 	viper.SetDefault("twitter_consumer_secret", "")
 
diff --git a/main.go b/main.go
index eeddd46d..76d834fe 100644
--- a/main.go
+++ b/main.go
@@ -8,6 +8,8 @@ import (
 	"os/signal"
 	"time"
 
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+
 	"github.com/sethvargo/go-password/password"
 
 	log "github.com/sirupsen/logrus"
@@ -76,6 +78,20 @@ func init() {
 	}
 
 	log.SetLevel(lvl)
+
+	go func() {
+		http.Handle("/metrics", promhttp.Handler())
+		http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+			_, _ = w.Write([]byte(`<html>
+			<head><title>Ticker Metrics Exporter</title></head>
+			<body>
+			<h1>Ticker Metrics Exporter</h1>
+			<p><a href="/metrics">Metrics</a></p>
+			</body>
+			</html>`))
+		})
+		log.Fatal(http.ListenAndServe(Config.MetricsListen, nil))
+	}()
 }
 
 func buildInfo() {