feat: config parsing for error and latency-based routing control

.github/workflows/golangci-lint.yml

@@ -17,7 +17,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v3
         with:
-          go-version: 1.19
+          go-version: 1.21
       - uses: actions/checkout@v3
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3

.github/workflows/test.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v3
         with:
-          go-version: 1.19
+          go-version: 1.21
       - uses: actions/checkout@v3
       - name: Cache Go modules
         uses: actions/cache@v2

.golangci.yml

@@ -58,6 +58,6 @@ linters:
     - wsl
 
 run:
-  go: '1.19'
+  go: '1.21'
   timeout: 5m
   issues-exit-code: 1

Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1.4
 
-FROM golang:1.19-alpine3.16 as builder
+FROM golang:1.21-alpine3.20 as builder
 
 RUN apk add --no-cache make libc6-compat build-base
 

README.md

@@ -84,7 +84,7 @@ By default, Prometheus metrics are exposed on port 9090. See
 
 #### Running locally
 
-1. Install Go 1.19.
+1. Install Go 1.22.
 2. Install dependencies: `go mod download`.
 3. Run `go run cmd/gateway/main.go`.
 
@@ -98,13 +98,20 @@ go generate ./...
 
 This command will generate mocks for interfaces/types annotated with `go:generate mockery ...` and place them in the `mocks` folder
 
+If you get a `command not found` error, make sure `~/go/bin` is in your `PATH`.
+
 Run tests with:
 
 ```sh
 go build -v ./...
 go test -v ./...
 ```
 
+To measure test code coverage, install the following tool and run the above `go test` command with the `-cover` flag:
+```sh
+go get golang.org/x/tools/cmd/cover
+```
+
 #### Linting
 
 This project relies on [golangci-lint](https://github.com/golangci/golangci-lint) for linting. You can set up an [integration with your code editor](https://golangci-lint.run/usage/integrations/) to run lint checks locally.

configs/config.sample.yml

@@ -21,7 +21,7 @@ chains:
     groups:
       # Each group must have the following keys
       #
-      # id - Unique identifer for the group.
+      # id - Unique identifier for the group.
       # priority - Defines the routing priority for nodes in the group.
       #            The lower the number, the higher the priority.
       #            Priority routing works by identifying the highest priority group with at least

go.mod

@@ -1,17 +1,19 @@
 module github.com/satsuma-data/node-gateway
 
-go 1.19
+go 1.22
+
+toolchain go1.22.3
 
 require (
 	github.com/ethereum/go-ethereum v1.12.0
 	github.com/go-redis/cache/v9 v9.0.0
-	github.com/google/go-cmp v0.5.9
+	github.com/google/go-cmp v0.6.0
 	github.com/prometheus/client_golang v1.14.0
 	github.com/redis/go-redis/v9 v9.0.5
 	github.com/samber/lo v1.36.0
-	github.com/stretchr/testify v1.8.1
+	github.com/stretchr/testify v1.9.0
 	go.uber.org/zap v1.23.0
-	golang.org/x/exp v0.0.0-20230206171751-46f607a40771
+	golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56
 	gopkg.in/yaml.v3 v3.0.1
 )
 
@@ -20,34 +22,66 @@ require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/btcsuite/btcd/btcec/v2 v2.2.0 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/chigopher/pathlib v0.19.1 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/deckarep/golang-set/v2 v2.1.0 // indirect
 	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/go-ole/go-ole v1.2.1 // indirect
 	github.com/go-redis/redismock/v9 v9.0.3 // indirect
 	github.com/go-stack/stack v1.8.1 // indirect
-	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/gorilla/websocket v1.4.2 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/holiman/uint256 v1.2.2-0.20230321075855-87b91420868c // indirect
-	github.com/klauspost/compress v1.15.15 // indirect
+	github.com/huandu/xstrings v1.5.0 // indirect
+	github.com/iancoleman/strcase v0.3.0 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/jinzhu/copier v0.4.0 // indirect
+	github.com/klauspost/compress v1.17.2 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/prometheus/client_model v0.3.0 // indirect
 	github.com/prometheus/common v0.39.0 // indirect
 	github.com/prometheus/procfs v0.9.0 // indirect
+	github.com/rs/zerolog v1.33.0 // indirect
+	github.com/sagikazarmark/locafero v0.6.0 // indirect
+	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
 	github.com/shirou/gopsutil v3.21.4-0.20210419000835-c7a38de76ee5+incompatible // indirect
-	github.com/stretchr/objx v0.5.0 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/spf13/afero v1.11.0 // indirect
+	github.com/spf13/cast v1.6.0 // indirect
+	github.com/spf13/cobra v1.8.1 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/spf13/viper v1.19.0 // indirect
+	github.com/stretchr/objx v0.5.2 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
 	github.com/tklauser/go-sysconf v0.3.5 // indirect
 	github.com/tklauser/numcpus v0.2.2 // indirect
+	github.com/vektra/mockery/v2 v2.43.2 // indirect
 	github.com/vmihailenco/go-tinylfu v0.2.2 // indirect
 	github.com/vmihailenco/msgpack/v5 v5.3.4 // indirect
 	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
-	go.uber.org/atomic v1.7.0 // indirect
-	go.uber.org/multierr v1.6.0 // indirect
-	golang.org/x/crypto v0.1.0 // indirect
-	golang.org/x/sync v0.1.0 // indirect
-	golang.org/x/sys v0.7.0 // indirect
-	google.golang.org/protobuf v1.28.1 // indirect
+	go.uber.org/atomic v1.11.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/crypto v0.21.0 // indirect
+	golang.org/x/mod v0.19.0 // indirect
+	golang.org/x/sync v0.7.0 // indirect
+	golang.org/x/sys v0.22.0 // indirect
+	golang.org/x/term v0.22.0 // indirect
+	golang.org/x/text v0.16.0 // indirect
+	golang.org/x/tools v0.23.0 // indirect
+	golang.org/x/tools/cmd/cover v0.1.0-deprecated // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 )