ItemStackRequest

The client's authoritative request stream for every inventory/crafting/trade operation: each request has an id, a list of filtered stack operations and string filters.

item-stack-request.bin

struct ItemStackRequest {
  varuint32 [] · ItemStackRequestCereal.RequestData[] Requests;
}

Structure

Field	Type	Description
Requests	varuint32 count + ItemStackRequestCereal.RequestData[]	Length-prefixed sequence.

Structure of RequestData

Field	Type	Description
Client Request Id	ItemStackRequestId
Actions	varuint32 count + TakeActionData \| PlaceActionData \| SwapActionData \| DropActionData \| DestroyActionData \| ConsumeActionData \| CreateActionData \| LabTableCombineActionData \| BeaconPaymentActionData \| MineBlockActionData \| CraftRecipeActionData \| CraftRecipeAutoActionData \| CraftCreativeActionData \| CraftRecipeOptionalActionData \| CraftRepairAndDisenchantActionData \| CraftLoomActionData \| CraftNonImplementedActionData \| CraftResultsActionData[]	Length-prefixed sequence.
Strings To Filter	varuint32 count + string[]	Length-prefixed sequence.
Strings To Filter Origin	int32 (LE)

Structure of ItemStackRequestId

Field	Type	Description
Raw Id	varint32

Structure of TakeActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.TAKE	Fixed tag written on the wire.
Amount	uint8
Source	SlotInfoData
Destination	SlotInfoData

Structure of PlaceActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.PLACE	Fixed tag written on the wire.
Amount	uint8
Source	SlotInfoData
Destination	SlotInfoData

Structure of SwapActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.SWAP	Fixed tag written on the wire.
Source	SlotInfoData
Destination	SlotInfoData

Structure of DropActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.DROP	Fixed tag written on the wire.
Amount	uint8
Source	SlotInfoData
Randomly	bool

Structure of DestroyActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.DESTROY	Fixed tag written on the wire.
Amount	uint8
Source	SlotInfoData

Structure of ConsumeActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.CONSUME	Fixed tag written on the wire.
Amount	uint8
Source	SlotInfoData

Structure of CreateActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.CREATE	Fixed tag written on the wire.
Results Index	uint8

Structure of LabTableCombineActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.SCREEN_LAB_TABLE_COMBINE	Fixed tag written on the wire.

Structure of BeaconPaymentActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.SCREEN_BEACON_PAYMENT	Fixed tag written on the wire.
Primary Effect Id	varint32
Secondary Effect Id	varint32

Structure of MineBlockActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.SCREEN_HUD_MINE_BLOCK	Fixed tag written on the wire.
Slot	varint32
Predicted Durability	varint32
Net Id Variant	int32 (LE)

Structure of CraftRecipeActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.CRAFT_RECIPE	Fixed tag written on the wire.
Recipe Net Id	RecipeNetId
Num Crafts	uint8

Structure of CraftRecipeAutoActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.CRAFT_RECIPE_AUTO	Fixed tag written on the wire.
Recipe Net Id	RecipeNetId
Num Crafts	uint8
Ingredients	varuint32 count + RecipeIngredientData[]	Length-prefixed sequence.

Structure of CraftCreativeActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.CRAFT_CREATIVE	Fixed tag written on the wire.
Creative Item Net Id	varuint32
Num Crafts	uint8

Structure of CraftRecipeOptionalActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.CRAFT_RECIPE_OPTIONAL	Fixed tag written on the wire.
Recipe Net Id	RecipeNetId
Filtered String Index	int32 (LE)

Structure of CraftRepairAndDisenchantActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.CRAFT_REPAIR_AND_DISENCHANT	Fixed tag written on the wire.
Recipe Net Id	int32 (LE)
Num Crafts	uint8
Repair Cost	varint32

Structure of CraftLoomActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.CRAFT_LOOM	Fixed tag written on the wire.
Pattern Name Id	string
Num Crafts	uint8

Structure of CraftNonImplementedActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.CRAFT_NON_IMPLEMENTED_DEPRECATEDASKTYLAING	Fixed tag written on the wire.

Structure of CraftResultsActionData

Field	Type	Description
Action Type	constant ItemStackRequestActionType.CRAFT_RESULTS_DEPRECATEDASKTYLAING	Fixed tag written on the wire.
Craft Results	varuint32 count + NetworkItemInstanceDescriptorData[]	Length-prefixed sequence.
Num Crafts	uint8

Notes

The server answers with ItemStackResponse using the same request ids.
Since 1.26.40 requests are cereal-serialised (ItemStackRequest.RequestData).