Dropping rxgo (#201)

* rxgo event source to channel with drop strategy

* code optimizations

frontend/src/components/LogTerminal.tsx

@@ -22,8 +22,8 @@ const LogTerminal: React.FC = () => {
 
   useEffect(() => {
     eventSource.addEventListener('log', event => {
-      const msg: string[] = JSON.parse(event.data)
+      const msg: string = JSON.parse(event.data)
-      setLogBuffer(buff => [...buff, ...msg].slice(-500))
+      setLogBuffer(buff => [...buff, msg].slice(-500))
 
       boxRef.current?.scrollTo(0, boxRef.current.scrollHeight)
     })

go.mod

@@ -10,7 +10,6 @@ require (
 	github.com/golang-jwt/jwt/v5 v5.2.1
 	github.com/google/uuid v1.6.0
 	github.com/gorilla/websocket v1.5.3
-	github.com/reactivex/rxgo/v2 v2.5.0
 	golang.org/x/oauth2 v0.23.0
 	golang.org/x/sync v0.8.0
 	golang.org/x/sys v0.25.0
@@ -19,21 +18,16 @@ require (
 )
 
 require (
-	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
-	github.com/emirpasic/gods v1.18.1 // indirect
 	github.com/go-jose/go-jose/v4 v4.0.4 // indirect
 	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
+	github.com/kr/pretty v0.1.0 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/ncruces/go-strftime v0.1.9 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
-	github.com/stretchr/objx v0.5.2 // indirect
-	github.com/stretchr/testify v1.9.0 // indirect
-	github.com/teivah/onecontext v1.3.0 // indirect
 	golang.org/x/crypto v0.27.0 // indirect
 	golang.org/x/exp v0.0.0-20240909161429-701f63a606c0 // indirect
+	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
 	modernc.org/gc/v3 v3.0.0-20240801135723-a856999a2e4a // indirect
 	modernc.org/libc v1.61.0 // indirect
 	modernc.org/mathutil v1.6.0 // indirect

go.sum

@@ -1,18 +1,11 @@
 github.com/asaskevich/EventBus v0.0.0-20200907212545-49d423059eef h1:2JGTg6JapxP9/R33ZaagQtAM4EkkSYnIAlOG5EI8gkM=
 github.com/asaskevich/EventBus v0.0.0-20200907212545-49d423059eef/go.mod h1:JS7hed4L1fj0hXcyEejnW57/7LCetXggd+vwrRnYeII=
-github.com/cenkalti/backoff/v4 v4.0.0/go.mod h1:eEew/i+1Q6OrCDZh3WiXYv3+nJwBASZ8Bog/87DQnVg=
-github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
-github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
 github.com/coreos/go-oidc/v3 v3.11.0 h1:Ia3MxdwpSw702YW0xgfmP1GVCMA9aEFWu12XUZ3/OtI=
 github.com/coreos/go-oidc/v3 v3.11.0/go.mod h1:gE3LgjOgFoHi9a4ce4/tJczr0Ai2/BoDhf0r5lltWI0=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
-github.com/emirpasic/gods v1.12.0/go.mod h1:YfzfFFoVP/catgzJb4IKIqXjX78Ha8FMSDh3ymbK86o=
-github.com/emirpasic/gods v1.18.1 h1:FXtiHYKDGKCW2KzwZKx0iC0PQmdlorYgdFG9jPXJ1Bc=
-github.com/emirpasic/gods v1.18.1/go.mod h1:8tpGGwCnJ5H4r6BWwaV6OrWmMoPhUl5jm/FMNAnJvWQ=
 github.com/go-chi/chi/v5 v5.1.0 h1:acVI1TYaD+hhedDJ3r54HyA6sExp3HfXq7QWEEY/xMw=
 github.com/go-chi/chi/v5 v5.1.0/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
 github.com/go-chi/cors v1.2.1 h1:xEC8UT3Rlp2QuWNEr4Fs/c2EAGVKBwy/1vHx3bppil4=
@@ -42,78 +35,40 @@ github.com/ncruces/go-strftime v0.1.9 h1:bY0MQC28UADQmHmaF5dgpLmImcShSi2kHU9XLdh
 github.com/ncruces/go-strftime v0.1.9/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
 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/reactivex/rxgo/v2 v2.5.0 h1:FhPgHwX9vKdNQB2gq9EPt+EKk9QrrzoeztGbEEnZam4=
-github.com/reactivex/rxgo/v2 v2.5.0/go.mod h1:bs4fVZxcb5ZckLIOeIeVH942yunJLWDABWGbrHAW+qU=
 github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
 github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/objx v0.5.2 h1:xuMeJ0Sdp5ZMRXx/aWO6RZxdr3beISkG5/G/aIRr3pY=
-github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
-github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-github.com/teivah/onecontext v0.0.0-20200513185103-40f981bfd775/go.mod h1:XUZ4x3oGhWfiOnUvTslnKKs39AWUct3g3yJvXTQSJOQ=
-github.com/teivah/onecontext v1.3.0 h1:tbikMhAlo6VhAuEGCvhc8HlTnpX4xTNPTOseWuhO1J0=
-github.com/teivah/onecontext v1.3.0/go.mod h1:hoW1nmdPVK/0jrvGtcx8sCKYs2PiS4z0zzfdeuEVyb0=
-go.uber.org/goleak v1.1.10 h1:z+mqJhf6ss6BSfSM671tgKyZBFPTTJM+HLxnhPC3wu0=
-go.uber.org/goleak v1.1.10/go.mod h1:8a7PlsEVH3e/a/GLqe5IIrQx6GzcnRmZEufDUTk4A7A=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.26.0 h1:RrRspgV4mU+YwB4FYnuBoKsUapNIL5cohGAmSH3azsw=
-golang.org/x/crypto v0.26.0/go.mod h1:GY7jblb9wI+FOo5y8/S2oY4zWP07AkOJ4+jxCqdqn54=
 golang.org/x/crypto v0.27.0 h1:GXm2NjJrPaiv/h1tb2UH8QfgC/hOf/+z0p6PT8o1w7A=
 golang.org/x/crypto v0.27.0/go.mod h1:1Xngt8kV6Dvbssa53Ziq6Eqn0HqbZi5Z6R0ZpwQzt70=
 golang.org/x/exp v0.0.0-20240909161429-701f63a606c0 h1:e66Fs6Z+fZTbFBAxKfP3PALWBtpfqks2bwGcexMxgtk=
 golang.org/x/exp v0.0.0-20240909161429-701f63a606c0/go.mod h1:2TbTHSBQa924w8M6Xs1QcRcFwyucIwBGpK1p2f1YFFY=
-golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
-golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/mod v0.19.0 h1:fEdghXQSo20giMthA7cd28ZC+jts4amQ3YMXiP5oMQ8=
-golang.org/x/mod v0.19.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/mod v0.21.0 h1:vvrHzRwRfVKSiLrG+d4FMl/Qi4ukBCE6kZlTUkDYRT0=
-golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/mod v0.21.0/go.mod h1:6SkKJ3Xj0I0BrPOZoBy3bdMptDDU9oJrpohJ3eWZ1fY=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/oauth2 v0.22.0 h1:BzDx2FehcG7jJwgWLELCdmLuxk2i+x9UDpSiss2u0ZA=
-golang.org/x/oauth2 v0.22.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
 golang.org/x/oauth2 v0.23.0 h1:PbgcYx2W7i4LvjJWEbf0ngHV6qJYr86PkAV3bXdLEbs=
 golang.org/x/oauth2 v0.23.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.8.0 h1:3NFvSEYkUoMifnESzZl15y791HH1qU2xm6eCJU5ZPXQ=
 golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg=
-golang.org/x/sys v0.24.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.25.0 h1:r+8e+loiHxRqhXVl6ML1nO3l1+oFoWbnlu2Ehimmi34=
 golang.org/x/sys v0.25.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.23.0 h1:SGsXPZ+2l4JsgaCKkx+FQ9YZ5XEtA1GZYuoDjenLjvg=
-golang.org/x/tools v0.23.0/go.mod h1:pnu6ufv6vQkll6szChhK3C3L/ruaIv5eBeztNG8wtsI=
 golang.org/x/tools v0.25.0 h1:oFU9pkj/iJgs+0DT+VMHrx+oBKs/LJMV+Uvg78sl+fE=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/tools v0.25.0/go.mod h1:/vtpO8WL1N9cQC3FN5zPqb//fRXskFHbLKk4OW1Q7rg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 modernc.org/cc/v4 v4.21.4 h1:3Be/Rdo1fpr8GrQ7IVw9OHtplU4gWbb+wNgeoBMmGLQ=
 modernc.org/cc/v4 v4.21.4/go.mod h1:HM7VJTZbUCR3rV8EYBi9wxnJ0ZBRiGE5OeGXNA0IsLQ=
-modernc.org/ccgo/v4 v4.20.7 h1:skrinQsjxWfvj6nbC3ztZPJy+NuwmB3hV9zX/pthNYQ=
-modernc.org/ccgo/v4 v4.20.7/go.mod h1:UOkI3JSG2zT4E2ioHlncSOZsXbuDCZLvPi3uMlZT5GY=
 modernc.org/ccgo/v4 v4.21.0 h1:kKPI3dF7RIag8YcToh5ZwDcVMIv6VGa0ED5cvh0LMW4=
+modernc.org/ccgo/v4 v4.21.0/go.mod h1:h6kt6H/A2+ew/3MW/p6KEoQmrq/i3pr0J/SiwiaF/g0=
 modernc.org/fileutil v1.3.0 h1:gQ5SIzK3H9kdfai/5x41oQiKValumqNTDXMvKo62HvE=
 modernc.org/fileutil v1.3.0/go.mod h1:XatxS8fZi3pS8/hKG2GH/ArUogfxjpEKs3Ku3aK4JyQ=
 modernc.org/gc/v2 v2.5.0 h1:bJ9ChznK1L1mUtAQtxi0wi5AtAs5jQuw4PrPHO5pb6M=
 modernc.org/gc/v2 v2.5.0/go.mod h1:wzN5dK1AzVGoH6XOzc3YZ+ey/jPgYHLuVckd62P0GYU=
 modernc.org/gc/v3 v3.0.0-20240801135723-a856999a2e4a h1:CfbpOLEo2IwNzJdMvE8aiRbPMxoTpgAJeyePh0SmO8M=
 modernc.org/gc/v3 v3.0.0-20240801135723-a856999a2e4a/go.mod h1:Qz0X07sNOR1jWYCrJMEnbW/X55x206Q7Vt4mz6/wHp4=
-modernc.org/libc v1.59.9 h1:k+nNDDakwipimgmJ1D9H466LhFeSkaPPycAs1OZiDmY=
-modernc.org/libc v1.59.9/go.mod h1:EY/egGEU7Ju66eU6SBqCNYaFUDuc4npICkMWnU5EE3A=
-modernc.org/libc v1.60.1 h1:at373l8IFRTkJIkAU85BIuUoBM4T1b51ds0E1ovPG2s=
-modernc.org/libc v1.60.1/go.mod h1:xJuobKuNxKH3RUatS7GjR+suWj+5c2K7bi4m/S5arOY=
 modernc.org/libc v1.61.0 h1:eGFcvWpqlnoGwzZeZe3PWJkkKbM/3SUGyk1DVZQ0TpE=
 modernc.org/libc v1.61.0/go.mod h1:DvxVX89wtGTu+r72MLGhygpfi3aUGgZRdAYGCAVVud0=
 modernc.org/mathutil v1.6.0 h1:fRe9+AmYlaej+64JsEEhoWuAYBkOtQiMEU7n/XgfYi4=
@@ -124,8 +79,6 @@ modernc.org/opt v0.1.3 h1:3XOZf2yznlhC+ibLltsDGzABUGVx8J6pnFMS3E4dcq4=
 modernc.org/opt v0.1.3/go.mod h1:WdSiB5evDcignE70guQKxYUl14mgWtbClRi5wmkkTX0=
 modernc.org/sortutil v1.2.0 h1:jQiD3PfS2REGJNzNCMMaLSp/wdMNieTbKX920Cqdgqc=
 modernc.org/sortutil v1.2.0/go.mod h1:TKU2s7kJMf1AE84OoiGppNHJwvB753OYfNl2WRb++Ss=
-modernc.org/sqlite v1.32.0 h1:6BM4uGza7bWypsw4fdLRsLxut6bHe4c58VeqjRgST8s=
-modernc.org/sqlite v1.32.0/go.mod h1:UqoylwmTb9F+IqXERT8bW9zzOWN8qwAIcLdzeBZs4hA=
 modernc.org/sqlite v1.33.1 h1:trb6Z3YYoeM9eDL1O8do81kP+0ejv+YzgyFo+Gwy0nM=
 modernc.org/sqlite v1.33.1/go.mod h1:pXV2xHxhzXZsgT/RtTFAPY6JJDEvOTcTdwADQCCWD4k=
 modernc.org/strutil v1.2.0 h1:agBi9dp1I+eOnxXeiZawM8F4LawKv4NzGWSaLfyeNZA=

server/logging/handler.go

@@ -3,9 +3,9 @@ package logging
 import (
 	"bytes"
 	"encoding/json"
-	"fmt"
+	"io"
+	"log/slog"
 	"net/http"
-	"strings"
 
 	"github.com/go-chi/chi/v5"
 	"github.com/gorilla/websocket"
@@ -22,19 +22,29 @@ var upgrader = websocket.Upgrader{
 	WriteBufferSize: 1000,
 }
 
-func webSocket(w http.ResponseWriter, r *http.Request) {
+func webSocket(logger *ObservableLogger) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
 		c, err := upgrader.Upgrade(w, r, nil)
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-	for msg := range logsObservable.Observe() {
+		logs := logger.Observe(r.Context())
-		c.WriteJSON(msg.V)
+
+		for {
+			select {
+			case <-r.Context().Done():
+				return
+			case msg := <-logs:
+				c.WriteJSON(msg)
+			}
+		}
 	}
 }
 
-func sse(w http.ResponseWriter, r *http.Request) {
+func sse(logger *ObservableLogger) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Content-Type", "text/event-stream")
 		w.Header().Set("Cache-Control", "no-cache")
 		w.Header().Set("Connection", "keep-alive")
@@ -45,35 +55,41 @@ func sse(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 
-	for msg := range logsObservable.Observe() {
+		logs := logger.Observe(r.Context())
-		if msg.E != nil {
+
-			http.Error(w, msg.E.Error(), http.StatusInternalServerError)
+		for {
+			select {
+			case <-r.Context().Done():
+				slog.Info("detaching from logger")
+				return
+			case msg, ok := <-logs:
+				if !ok {
+					http.Error(w, "closed logs channel", http.StatusInternalServerError)
 					return
 				}
 
-		var (
+				var b bytes.Buffer
-			b  bytes.Buffer
-			sb strings.Builder
-		)
 
-		if err := json.NewEncoder(&b).Encode(msg.V); err != nil {
+				b.WriteString("event: log\n")
+				b.WriteString("data: ")
+
+				if err := json.NewEncoder(&b).Encode(msg); err != nil {
 					http.Error(w, err.Error(), http.StatusInternalServerError)
 					return
 				}
 
-		sb.WriteString("event: log\n")
+				b.WriteRune('\n')
-		sb.WriteString("data: ")
+				b.WriteRune('\n')
-		sb.WriteString(b.String())
-		sb.WriteRune('\n')
-		sb.WriteRune('\n')
 
-		fmt.Fprint(w, sb.String())
+				io.Copy(w, &b)
 
 				flusher.Flush()
 			}
+		}
+	}
 }
 
-func ApplyRouter() func(chi.Router) {
+func ApplyRouter(logger *ObservableLogger) func(chi.Router) {
 	return func(r chi.Router) {
 		if config.Instance().RequireAuth {
 			r.Use(middlewares.Authenticated)
@@ -81,7 +97,7 @@ func ApplyRouter() func(chi.Router) {
 		if config.Instance().UseOpenId {
 			r.Use(openid.Middleware)
 		}
-		r.Get("/ws", webSocket)
+		r.Get("/ws", webSocket(logger))
-		r.Get("/sse", sse)
+		r.Get("/sse", sse(logger))
 	}
 }

server/logging/observable_logger.go

@@ -1,40 +1,53 @@
 package logging
 
 import (
-	"time"
+	"context"
-
-	"github.com/reactivex/rxgo/v2"
 )
 
 /*
-	Logger implementation using the observable pattern.
+Logger implementation using the observable pattern.
-	Implements io.Writer interface.
+Implements io.Writer interface.
 
-	The observable is an event source which drops everythigng unless there's
+The observable is an event source which drops everythigng unless there's
-	a subscriber connected.
+a subscriber connected.
 
-	The observer implementatios are a http ServerSentEvents handler and a
+The observer implementatios are a http ServerSentEvents handler and a
-	websocket one in handler.go
+websocket one in handler.go
 */
-
+type ObservableLogger struct {
-var (
+	logsChan chan []byte
-	logsChan       = make(chan rxgo.Item, 100)
+}
-	logsObservable = rxgo.
-			FromEventSource(logsChan, rxgo.WithBackPressureStrategy(rxgo.Drop)).
-			BufferWithTime(rxgo.WithDuration(time.Millisecond * 500))
-)
-
-type ObservableLogger struct{}
 
 func NewObservableLogger() *ObservableLogger {
-	return &ObservableLogger{}
+	return &ObservableLogger{
+		logsChan: make(chan []byte, 100),
+	}
 }
 
 func (o *ObservableLogger) Write(p []byte) (n int, err error) {
-	logsChan <- rxgo.Of(string(p))
+	select {
-
+	case o.logsChan <- p:
 		n = len(p)
 		err = nil
-
 		return
+	default:
+		return
+	}
+}
+
+func (o *ObservableLogger) Observe(ctx context.Context) <-chan string {
+	logs := make(chan string)
+
+	go func() {
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case logLine := <-o.logsChan:
+				logs <- string(logLine)
+			}
+		}
+	}()
+
+	return logs
 }

server/server.go

@@ -47,13 +47,16 @@ type serverConfig struct {
 	lm       *livestream.Monitor
 }
 
+// TODO: change scope
+var observableLogger = logging.NewObservableLogger()
+
 func RunBlocking(rc *RunConfig) {
 	mdb := internal.NewMemoryDB()
 
 	// ---- LOGGING ---------------------------------------------------
 	logWriters := []io.Writer{
 		os.Stdout,
-		logging.NewObservableLogger(), // for web-ui
+		observableLogger, // for web-ui
 	}
 
 	conf := config.Instance()
@@ -207,7 +210,7 @@ func newServer(c serverConfig) *http.Server {
 	}))
 
 	// Logging
-	r.Route("/log", logging.ApplyRouter())
+	r.Route("/log", logging.ApplyRouter(observableLogger))
 
 	return &http.Server{Handler: r}
 }