feat: add query example requests (#31)

Signed-off-by: Ales Verbic <[email protected]>

examples/query/main.go

@@ -0,0 +1,107 @@
+package main
+
+import (
+	"context"
+	"encoding/hex"
+	"fmt"
+	"log"
+
+	"connectrpc.com/connect"
+	"github.com/utxorpc/go-codegen/utxorpc/v1alpha/cardano"
+	"github.com/utxorpc/go-codegen/utxorpc/v1alpha/query"
+	utxorpc "github.com/utxorpc/go-sdk"
+)
+
+func main() {
+
+	ctx := context.Background()
+	baseUrl := "https://preview.utxorpc-v0.demeter.run"
+	// set API key for demeter
+	client := utxorpc.CreateUtxoRPCClient(baseUrl,
+		// set API key for demeter
+		utxorpc.WithHeaders(map[string]string{
+			"dmtr-api-key": "dmtr_apikey...",
+		}),
+	)
+
+	// Set mode to "readParams", "readUtxos", "searchUtxos" to select the desired example.
+	var mode string = "readParams"
+
+	switch mode {
+	case "readParams":
+		readParams(ctx, client)
+	case "readUtxos":
+		readUtxos(ctx, client)
+	case "searchUtxos":
+		searchUtxos(ctx, client)
+	default:
+		fmt.Println("Unknown mode:", mode)
+	}
+}
+
+func readParams(ctx context.Context, client *utxorpc.UtxorpcClient) {
+	req := connect.NewRequest(&query.ReadParamsRequest{})
+	client.AddHeadersToRequest(req)
+
+	fmt.Println("Connecting to utxorpc host:", client.URL())
+	resp, err := client.Query.ReadParams(ctx, req)
+	if err != nil {
+		utxorpc.HandleError(err)
+	}
+	fmt.Printf("Response: %+v\n", resp)
+}
+
+func readUtxos(ctx context.Context, client *utxorpc.UtxorpcClient) {
+	txHash, err := hex.DecodeString("3394533cb02fb71b062690d85bbe9d79a7b6f8f4c1b92b0e728fe7b93a1440c9")
+	if err != nil {
+		log.Fatalf("failed to decode hex string: %v", err)
+	}
+	txoRef := &query.TxoRef{
+		Hash: txHash,
+	}
+
+	req := connect.NewRequest(&query.ReadUtxosRequest{
+		Keys: []*query.TxoRef{txoRef},
+	})
+	client.AddHeadersToRequest(req)
+	fmt.Println("connecting to utxorpc host:", client.URL())
+	resp, err := client.Query.ReadUtxos(ctx, req)
+	if err != nil {
+		utxorpc.HandleError(err)
+	}
+	fmt.Printf("Response: %+v\n", resp)
+}
+
+func searchUtxos(ctx context.Context, client *utxorpc.UtxorpcClient) {
+
+	rawAddress := "00fc26cca7cc4b67032c38ed6a568237cc05ba73e31d375198ffe0e7f56c4506809de7d19eb9b619908e2027471e97fe953b3234a476258560"
+	exactAddress, err := hex.DecodeString(rawAddress)
+	if err != nil {
+		log.Fatalf("failed to decode hex string address: %v", err)
+	}
+
+	req := connect.NewRequest(&query.SearchUtxosRequest{
+		Predicate: &query.UtxoPredicate{
+			Match: &query.AnyUtxoPattern{
+				UtxoPattern: &query.AnyUtxoPattern_Cardano{
+					Cardano: &cardano.TxOutputPattern{
+						Address: &cardano.AddressPattern{
+							ExactAddress: exactAddress,
+						},
+						Asset: &cardano.AssetPattern{
+							// Populate the fields as necessary
+						},
+					},
+				},
+			},
+		},
+	})
+	client.AddHeadersToRequest(req)
+
+	fmt.Println("connecting to utxorpc host:", client.URL())
+	resp, err := client.Query.SearchUtxos(ctx, req)
+	if err != nil {
+		utxorpc.HandleError(err)
+	}
+	fmt.Printf("Response: %+v\n", resp)
+}