draft: adding handler to return all assets of an account

daemon/algod/api/algod.oas2.json

@@ -293,7 +293,7 @@
             "description": "An asset identifier",
             "name": "asset-id",
             "in": "path",
-            "required": true
+            "required": false 
           },
           {
             "$ref": "#/parameters/format"

daemon/algod/api/server/v2/handlers.go

@@ -503,6 +503,53 @@ func (v2 *Handlers) AccountAssetInformation(ctx echo.Context, address string, as
 	ledger := v2.Node.LedgerForAPI()
 
 	lastRound := ledger.Latest()
+
+	// highjack the endpoint when 0 is passed to get all assets
+	// TODO: this is a hack, we should have a separate endpoint for this
+	if assetID == 0 {
+		// First lookup the account
+		acct, _, _, err := ledger.LookupLatest(addr)
+		if err != nil {
+			return internalError(ctx, err, fmt.Sprintf("could not retrieve account information for last round (%d)", lastRound), v2.Log)
+		}
+
+		// Just stealing the current response struct for this
+		responses := []model.AccountAssetResponse{}
+
+		// For each asset, lookup the asset creator then asset params
+		for assetID, holding := range acct.Assets {
+
+			creator, ok, err := ledger.GetCreator(basics.CreatableIndex(assetID), basics.AssetCreatable)
+			if err != nil {
+				return internalError(ctx, err, errFailedLookingUpLedger, v2.Log)
+			}
+			if !ok {
+				return notFound(ctx, errors.New(errAssetDoesNotExist), errAssetDoesNotExist, v2.Log)
+			}
+
+			record, err := ledger.LookupAsset(lastRound, creator, basics.AssetIndex(assetID))
+			if err != nil {
+				return internalError(ctx, err, errFailedLookingUpLedger, v2.Log)
+			}
+			if record.AssetParams == nil {
+				return notFound(ctx, errors.New(errAccountAssetDoesNotExist), errAccountAssetDoesNotExist, v2.Log)
+			}
+			asset := AssetParamsToAsset(creator.String(), basics.AssetIndex(assetID), record.AssetParams)
+			recordResponse := model.AccountAssetResponse{
+				CreatedAsset: &asset.Params,
+				AssetHolding: &model.AssetHolding{
+					Amount:   holding.Amount,
+					AssetID:  uint64(assetID),
+					IsFrozen: holding.Frozen,
+				},
+			}
+			responses = append(responses, recordResponse)
+		}
+
+		return ctx.JSON(http.StatusOK, responses)
+
+	}
+
 	record, err := ledger.LookupAsset(lastRound, addr, basics.AssetIndex(assetID))
 	if err != nil {
 		return internalError(ctx, err, errFailedLookingUpLedger, v2.Log)