status api, linter

.golangci.yaml

@@ -27,6 +27,7 @@ linters:
     - wsl
     - exhaustruct
     - depguard
+    - err113
 
     #
     # Disabled because of generics:

README.md

@@ -6,11 +6,12 @@ WIP Toolbox
 - [Create TLS certificate + key (PEM format)](cmd/tls-gen/main.go)
 - [Server using custom TLS certificate](cmd/https-server/main.go)
 - [Client allowing only server using the custom TLS certificate](cmd/https-client/main.go)
+- [Status API server for recording and querying events](cmd/status-api/)
 
 ## Usage
 
 ```bash
-# create the TLS cert
+# create the TLS cert (cert.pem) and key (key.pem)
 $ go run cmd/tls-gen/main.go --host 127.0.0.1,localhost
 
 # run the server (serving the created TLS cert)
@@ -23,6 +24,31 @@ $ curl --cacert cert.pem https://127.0.0.1:8080
 $ go run cmd/https-client/main.go
 ```
 
+Status api server that can be used to record and query events.
+
+```bash
+# Start the server
+$ go run cmd/status-api/*
+
+# Add events
+$ curl localhost:8082/api/v1/new_event?message=111
+$ curl localhost:8082/api/v1/new_event?message=222
+
+# Query events
+$ curl -s localhost:8082/api/v1/events | jq
+[
+  {
+    "ReceivedAt": "2024-09-21T07:51:47.709512Z",
+    "Message": "111"
+  },
+  {
+    "ReceivedAt": "2024-09-21T07:51:49.294175Z",
+    "Message": "222"
+  }
+]
+```
+
+
 ## Next Steps
 
 These partly overlap with https://github.com/flashbots/cvm-reverse-proxy:

cmd/ecdsa-gen/main.go

@@ -9,7 +9,7 @@ import (
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/flashbots/go-template/common"
-	"github.com/urfave/cli/v2" // imports as package "cli"
+	cli "github.com/urfave/cli/v2" // imports as package "cli"
 )
 
 // var flags []cli.Flag = []cli.Flag{

cmd/https-client/main.go

@@ -10,7 +10,7 @@ import (
 	"os"
 
 	"github.com/flashbots/go-template/common"
-	"github.com/urfave/cli/v2" // imports as package "cli"
+	cli "github.com/urfave/cli/v2"
 )
 
 var flags []cli.Flag = []cli.Flag{
@@ -57,7 +57,8 @@ func runCli(cCtx *cli.Context) error {
 	client := &http.Client{
 		Transport: &http.Transport{
 			TLSClientConfig: &tls.Config{
-				RootCAs: roots,
+				RootCAs:    roots,
+				MinVersion: tls.VersionTLS13,
 			},
 		},
 	}

cmd/https-server/main.go

@@ -9,7 +9,7 @@ import (
 	"time"
 
 	"github.com/flashbots/go-template/common"
-	"github.com/urfave/cli/v2" // imports as package "cli"
+	cli "github.com/urfave/cli/v2" // imports as package "cli"
 )
 
 var flags []cli.Flag = []cli.Flag{

go.mod

@@ -6,16 +6,22 @@ toolchain go1.23.1
 
 require (
 	github.com/ethereum/go-ethereum v1.14.9
+	github.com/flashbots/go-utils v0.6.1-0.20240611151222-14d18c5e94d0
+	github.com/go-chi/chi/v5 v5.1.0
 	github.com/urfave/cli/v2 v2.27.2
 )
 
 require (
 	github.com/btcsuite/btcd/btcec/v2 v2.3.4 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.4 // indirect
 	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
 	github.com/holiman/uint256 v1.3.1 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
 	github.com/xrash/smetrics v0.0.0-20240312152122-5f08fbb34913 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.27.0 // indirect
 	golang.org/x/crypto v0.22.0 // indirect
-	golang.org/x/sys v0.22.0 // indirect
+	golang.org/x/sys v0.25.0 // indirect
 )

go.sum

@@ -4,6 +4,7 @@ github.com/btcsuite/btcd/chaincfg/chainhash v1.0.1 h1:q0rUy8C/TYNBQS1+CGKw68tLOF
 github.com/btcsuite/btcd/chaincfg/chainhash v1.0.1/go.mod h1:7SFka0XMvUgj3hfZtydOrQY2mwhPclbT2snogU7SQQc=
 github.com/cpuguy83/go-md2man/v2 v2.0.4 h1:wfIWP927BUkWJb2NmU/kNDYIBTh/ziUX91+lVfRxZq4=
 github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+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/decred/dcrd/crypto/blake256 v1.0.1 h1:7PltbUIQB7u/FfZ39+DGa/ShuMyJ5ilcvdfma9wOH6Y=
@@ -12,15 +13,40 @@ github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 h1:8UrgZ3GkP4i/CLijOJx79Yu+etly
 github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0/go.mod h1:v57UDF4pDQJcEfFUCRop3lJL149eHGSe9Jvczhzjo/0=
 github.com/ethereum/go-ethereum v1.14.9 h1:J7iwXDrtUyE9FUjUYbd4c9tyzwMh6dTJsKzo9i6SrwA=
 github.com/ethereum/go-ethereum v1.14.9/go.mod h1:QeW+MtTpRdBEm2pUFoonByee8zfHv7kGp0wK0odvU1I=
+github.com/flashbots/go-utils v0.6.1-0.20240611151222-14d18c5e94d0 h1:aJ+jlJVI8p8Wnj/+o6Ds/URwMg0d/+msQB7RgrxacOA=
+github.com/flashbots/go-utils v0.6.1-0.20240611151222-14d18c5e94d0/go.mod h1:l5jkDHCCt225ohwNtqafEJSKV7PfrFfXb2JT145I1ms=
+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/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/holiman/uint256 v1.3.1 h1:JfTzmih28bittyHM8z360dCjIA9dbPIBlcTI6lmctQs=
 github.com/holiman/uint256 v1.3.1/go.mod h1:EOMSn4q6Nyt9P6efbI3bueV4e1b3dGlUCXeiRV4ng7E=
+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/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
+github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+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/urfave/cli/v2 v2.27.2 h1:6e0H+AkS+zDckwPCUrZkKX38mRaau4nL2uipkJpbkcI=
 github.com/urfave/cli/v2 v2.27.2/go.mod h1:g0+79LmHHATl7DAcHO99smiR/T7uGLw84w8Y42x+4eM=
 github.com/xrash/smetrics v0.0.0-20240312152122-5f08fbb34913 h1:+qGGcbkzsfDQNPPe9UDgpxAWQrhbbBXOYJFQDq/dtJw=
 github.com/xrash/smetrics v0.0.0-20240312152122-5f08fbb34913/go.mod h1:4aEEwZQutDLsQv2Deui4iYQ6DWTxR14g6m8Wv88+Xqk=
+go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
+go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
+go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
+go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
+go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8=
+go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
 golang.org/x/crypto v0.22.0 h1:g1v0xeRhjcugydODzvb3mEM9SQ0HGp9s/nh3COQ/C30=
 golang.org/x/crypto v0.22.0/go.mod h1:vr6Su+7cTlO45qkww3VDJlzDn0ctJvRgYbC2NvXHt+M=
-golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI=
-golang.org/x/sys v0.22.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+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=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=