JSONRPC example

nwaku/jsonrpc.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"time"
+	"github.com/ethereum/go-ethereum/rpc"
+)
+
+// NOTE Can be generalized with different transports (HTTP, IPC, WS etc)
+// https://github.com/ethereum/go-ethereum/blob/master/rpc/client.go#L169
+
+type WakuInfo struct {
+	ListenStr string `json:"listenStr"`
+}
+
+func main() {
+	fmt.Println("JSON RPC request...")
+
+	_, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	// Assumes node started
+	client, _ := rpc.Dial("http://127.0.0.1:8545")
+	var wakuInfo WakuInfo
+	// TODO id, params?
+	if err := client.Call(&wakuInfo, "get_waku_v2_debug_v1_info"); err != nil {
+		panic(err)
+	}
+	fmt.Println("WakuInfo ListenStr", wakuInfo.ListenStr)
+}