start logic webhook and added model for webhook payload

internal/models/alchemy/webhook.go

@@ -0,0 +1,39 @@
+package alchemy
+
+type AlchemyAddressActivityWebhook struct {
+	CreatedAt string `json:"createdAt"`
+	Event     struct {
+		Activity []struct {
+			Asset    string `json:"asset"`
+			BlockNum string `json:"blockNum"`
+			Category string `json:"category"`
+			//Erc1155Metadata  interface{} `json:"erc1155Metadata"`
+			//Erc721TokenId    interface{} `json:"erc721TokenId"`
+			FromAddress string `json:"fromAddress"`
+			Hash        string `json:"hash"`
+			Log         struct {
+				Address          string   `json:"address"`
+				BlockHash        string   `json:"blockHash"`
+				BlockNumber      string   `json:"blockNumber"`
+				Data             string   `json:"data"`
+				LogIndex         string   `json:"logIndex"`
+				Removed          bool     `json:"removed"`
+				Topics           []string `json:"topics"`
+				TransactionHash  string   `json:"transactionHash"`
+				TransactionIndex string   `json:"transactionIndex"`
+			} `json:"log"`
+			RawContract struct {
+				Address  string `json:"address"`
+				Decimals int    `json:"decimals"`
+				RawValue string `json:"rawValue"`
+			} `json:"rawContract"`
+			ToAddress string `json:"toAddress"`
+			//TypeTraceAddress interface{} `json:"typeTraceAddress"`
+			Value float64 `json:"value"`
+		} `json:"activity"`
+		Network string `json:"network"`
+	} `json:"event"`
+	ID        string `json:"id"`
+	Type      string `json:"type"`
+	WebhookId string `json:"webhookId"`
+}

internal/payment_provider/alchemy/provider.go

@@ -2,8 +2,10 @@ package alchemy
 
 import (
 	"context"
+	"fmt"
 	"gitea.pena/PenaSide/treasurer/internal/errors"
 	"gitea.pena/PenaSide/treasurer/internal/models"
+	"gitea.pena/PenaSide/treasurer/internal/models/alchemy"
 	"github.com/gofiber/fiber/v2"
 	"go.uber.org/zap"
 )
@@ -11,6 +13,7 @@ import (
 const ProviderName = "alchemy"
 
 type Config struct {
+	WalletAddress string `json:"walletAddress"`
 }
 
 type Provider struct {
@@ -47,5 +50,16 @@ func (p *Provider) RegisterWebhookHandlers(router fiber.Router) {
 }
 
 func (p *Provider) handleWebhook(ctx *fiber.Ctx) error {
-	return nil
+	var payload alchemy.AlchemyAddressActivityWebhook
+	if err := ctx.BodyParser(&payload); err != nil {
+		return ctx.Status(fiber.StatusBadRequest).SendString(fmt.Sprintf("failed to parse Alchemy webhook: %s", err.Error()))
+	}
+
+	for _, act := range payload.Event.Activity {
+		if act.ToAddress != p.config.WalletAddress {
+			continue
+		}
+		//TODO: найти инвойс по act.Value и act.FromAddress
+	}
+	return ctx.SendStatus(fiber.StatusOK)
 }