Feature: add assets request

cmd/api/handler/asset.go

@@ -0,0 +1,72 @@
+// SPDX-FileCopyrightText: 2024 PK Lab AG <[email protected]>
+// SPDX-License-Identifier: MIT
+
+package handler
+
+import (
+	"net/http"
+
+	"github.com/celenium-io/astria-indexer/cmd/api/handler/responses"
+	"github.com/celenium-io/astria-indexer/internal/storage"
+	"github.com/labstack/echo/v4"
+)
+
+type AssetHandler struct {
+	asset  storage.IAsset
+	blocks storage.IBlock
+}
+
+func NewAssetHandler(
+	asset storage.IAsset,
+	blocks storage.IBlock,
+) *AssetHandler {
+	return &AssetHandler{
+		asset:  asset,
+		blocks: blocks,
+	}
+}
+
+type assetListRequest struct {
+	Limit  uint64 `query:"limit"  validate:"omitempty,min=1,max=100"`
+	Offset uint64 `query:"offset" validate:"omitempty,min=0"`
+}
+
+func (p *assetListRequest) SetDefault() {
+	if p.Limit == 0 {
+		p.Limit = 10
+	}
+}
+
+// List godoc
+//
+//	@Summary		Get assets info
+//	@Description	Get assets info
+//	@Tags			assets
+//	@ID				get-asset
+//	@Param			limit	query	integer	false	"Count of requested entities"	mininum(1)	maximum(100)
+//	@Param			offset	query	integer	false	"Offset"						mininum(1)
+//	@Produce		json
+//	@Success		200	{object}	responses.Asset
+//	@Success		204
+//	@Failure		400	{object}	Error
+//	@Failure		500	{object}	Error
+//	@Router			/v1/asset [get]
+func (handler *AssetHandler) List(c echo.Context) error {
+	req, err := bindAndValidate[assetListRequest](c)
+	if err != nil {
+		return badRequestError(c, err)
+	}
+	req.SetDefault()
+
+	assets, err := handler.asset.List(c.Request().Context(), int(req.Limit), int(req.Offset))
+	if err != nil {
+		return handleError(c, err, handler.blocks)
+	}
+
+	response := make([]responses.Asset, len(assets))
+	for i := range assets {
+		response[i] = responses.NewAsset(assets[i])
+	}
+
+	return c.JSON(http.StatusOK, response)
+}