VRF zero confirmation delay

common/client/multi_node.go

@@ -449,6 +449,17 @@ func (c *multiNode[CHAIN_ID, SEQ, ADDR, BLOCK_HASH, TX, TX_HASH, EVENT, EVENT_OP
 	return n.RPC().CallContract(ctx, attempt, blockNumber)
 }
 
+func (c *multiNode[CHAIN_ID, SEQ, ADDR, BLOCK_HASH, TX, TX_HASH, EVENT, EVENT_OPS, TX_RECEIPT, FEE, HEAD, RPC_CLIENT]) PendingCallContract(
+	ctx context.Context,
+	attempt interface{},
+) (rpcErr []byte, extractErr error) {
+	n, err := c.selectNode()
+	if err != nil {
+		return rpcErr, err
+	}
+	return n.RPC().PendingCallContract(ctx, attempt)
+}
+
 // ChainID makes a direct RPC call. In most cases it should be better to use the configured chain id instead by
 // calling ConfiguredChainID.
 func (c *multiNode[CHAIN_ID, SEQ, ADDR, BLOCK_HASH, TX, TX_HASH, EVENT, EVENT_OPS, TX_RECEIPT, FEE, HEAD, RPC_CLIENT]) ChainID(ctx context.Context) (id CHAIN_ID, err error) {

common/client/types.go

@@ -124,6 +124,10 @@ type clientAPI[
 		msg interface{},
 		blockNumber *big.Int,
 	) (rpcErr []byte, extractErr error)
+	PendingCallContract(
+		ctx context.Context,
+		msg interface{},
+	) (rpcErr []byte, extractErr error)
 	CallContext(ctx context.Context, result interface{}, method string, args ...interface{}) error
 	CodeAt(ctx context.Context, account ADDR, blockNumber *big.Int) ([]byte, error)
 }

core/chains/evm/client/chain_client.go

@@ -127,6 +127,10 @@ func (c *chainClient) CallContract(ctx context.Context, msg ethereum.CallMsg, bl
 	return c.multiNode.CallContract(ctx, msg, blockNumber)
 }
 
+func (c *chainClient) PendingCallContract(ctx context.Context, msg ethereum.CallMsg) ([]byte, error) {
+	return c.multiNode.PendingCallContract(ctx, msg)
+}
+
 // TODO-1663: change this to actual ChainID() call once client.go is deprecated.
 func (c *chainClient) ChainID() (*big.Int, error) {
 	//return c.multiNode.ChainID(ctx), nil

core/chains/evm/client/client.go

@@ -91,6 +91,7 @@ type Client interface {
 	HeaderByHash(ctx context.Context, h common.Hash) (*types.Header, error)
 
 	CallContract(ctx context.Context, msg ethereum.CallMsg, blockNumber *big.Int) ([]byte, error)
+	PendingCallContract(ctx context.Context, msg ethereum.CallMsg) ([]byte, error)
 
 	IsL2() bool
 }
@@ -260,6 +261,10 @@ func (client *client) CallContract(ctx context.Context, msg ethereum.CallMsg, bl
 	return client.pool.CallContract(ctx, msg, blockNumber)
 }
 
+func (client *client) PendingCallContract(ctx context.Context, msg ethereum.CallMsg) ([]byte, error) {
+	return client.pool.PendingCallContract(ctx, msg)
+}
+
 func (client *client) CodeAt(ctx context.Context, account common.Address, blockNumber *big.Int) ([]byte, error) {
 	return client.pool.CodeAt(ctx, account, blockNumber)
 }

core/chains/evm/client/erroring_node.go

@@ -103,6 +103,10 @@ func (e *erroringNode) CallContract(ctx context.Context, msg ethereum.CallMsg, b
 	return nil, errors.New(e.errMsg)
 }
 
+func (e *erroringNode) PendingCallContract(ctx context.Context, msg ethereum.CallMsg) ([]byte, error) {
+	return nil, errors.New(e.errMsg)
+}
+
 func (e *erroringNode) CodeAt(ctx context.Context, account common.Address, blockNumber *big.Int) ([]byte, error) {
 	return nil, errors.New(e.errMsg)
 }

core/chains/evm/client/node.go

@@ -117,6 +117,7 @@ type Node interface {
 	EstimateGas(ctx context.Context, call ethereum.CallMsg) (uint64, error)
 	SuggestGasPrice(ctx context.Context) (*big.Int, error)
 	CallContract(ctx context.Context, msg ethereum.CallMsg, blockNumber *big.Int) ([]byte, error)
+	PendingCallContract(ctx context.Context, msg ethereum.CallMsg) ([]byte, error)
 	CodeAt(ctx context.Context, account common.Address, blockNumber *big.Int) ([]byte, error)
 	HeaderByNumber(context.Context, *big.Int) (*types.Header, error)
 	HeaderByHash(context.Context, common.Hash) (*types.Header, error)
@@ -830,6 +831,33 @@ func (n *node) CallContract(ctx context.Context, msg ethereum.CallMsg, blockNumb
 
 }
 
+func (n *node) PendingCallContract(ctx context.Context, msg ethereum.CallMsg) (val []byte, err error) {
+	ctx, cancel, ws, http, err := n.makeLiveQueryCtxAndSafeGetClients(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer cancel()
+	lggr := n.newRqLggr().With("callMsg", msg)
+
+	lggr.Debug("RPC call: evmclient.Client#PendingCallContract")
+	start := time.Now()
+	if http != nil {
+		val, err = http.geth.PendingCallContract(ctx, msg)
+		err = n.wrapHTTP(err)
+	} else {
+		val, err = ws.geth.PendingCallContract(ctx, msg)
+		err = n.wrapWS(err)
+	}
+	duration := time.Since(start)
+
+	n.logResult(lggr, err, duration, n.getRPCDomain(), "PendingCallContract",
+		"val", val,
+	)
+
+	return
+
+}
+
 func (n *node) BlockByNumber(ctx context.Context, number *big.Int) (b *types.Block, err error) {
 	ctx, cancel, ws, http, err := n.makeLiveQueryCtxAndSafeGetClients(ctx)
 	if err != nil {

core/chains/evm/client/null_client.go

@@ -196,6 +196,11 @@ func (nc *NullClient) CallContract(ctx context.Context, msg ethereum.CallMsg, bl
 	return nil, nil
 }
 
+func (nc *NullClient) PendingCallContract(ctx context.Context, msg ethereum.CallMsg) ([]byte, error) {
+	nc.lggr.Debug("PendingCallContract")
+	return nil, nil
+}
+
 func (nc *NullClient) CodeAt(ctx context.Context, account common.Address, blockNumber *big.Int) ([]byte, error) {
 	nc.lggr.Debug("CodeAt")
 	return nil, nil

core/chains/evm/client/pool.go

@@ -477,6 +477,10 @@ func (p *Pool) CallContract(ctx context.Context, msg ethereum.CallMsg, blockNumb
 	return p.selectNode().CallContract(ctx, msg, blockNumber)
 }
 
+func (p *Pool) PendingCallContract(ctx context.Context, msg ethereum.CallMsg) ([]byte, error) {
+	return p.selectNode().PendingCallContract(ctx, msg)
+}
+
 func (p *Pool) CodeAt(ctx context.Context, account common.Address, blockNumber *big.Int) ([]byte, error) {
 	return p.selectNode().CodeAt(ctx, account, blockNumber)
 }

core/chains/evm/client/rpc_client.go

@@ -792,6 +792,34 @@ func (r *rpcClient) CallContract(ctx context.Context, msg interface{}, blockNumb
 
 }
 
+func (r *rpcClient) PendingCallContract(ctx context.Context, msg interface{}) (val []byte, err error) {
+	ctx, cancel, ws, http, err := r.makeLiveQueryCtxAndSafeGetClients(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer cancel()
+	lggr := r.newRqLggr().With("callMsg", msg)
+	message := msg.(ethereum.CallMsg)
+
+	lggr.Debug("RPC call: evmclient.Client#PendingCallContract")
+	start := time.Now()
+	if http != nil {
+		val, err = http.geth.PendingCallContract(ctx, message)
+		err = r.wrapHTTP(err)
+	} else {
+		val, err = ws.geth.PendingCallContract(ctx, message)
+		err = r.wrapWS(err)
+	}
+	duration := time.Since(start)
+
+	r.logResult(lggr, err, duration, r.getRPCDomain(), "PendingCallContract",
+		"val", val,
+	)
+
+	return
+
+}
+
 func (r *rpcClient) LatestBlockHeight(ctx context.Context) (*big.Int, error) {
 	var height big.Int
 	h, err := r.BlockNumber(ctx)