// NotifyBlocksAsync returns an instance of a type that can be used to get the
// result of the RPC at some future time by invoking the Receive function on
// the returned instance.
//
// See NotifyBlocks for the blocking version and more details.
//
// NOTE: This is a btcd extension and requires a websocket connection.
func (c *Client) NotifyBlocksAsync() FutureNotifyBlocksResult {
// Not supported in HTTP POST mode.
if c.config.HTTPPostMode {
return newFutureError(ErrNotificationsNotSupported)
}
// Ignore the notification if the client is not interested in
// notifications.
if c.ntfnHandlers == nil {
return newNilFutureResult()
}
cmd := btcjson.NewNotifyBlocksCmd()
return c.sendCmd(cmd)
}
// TestChainSvrWsCmds tests all of the chain server websocket-specific commands
// marshal and unmarshal into valid results include handling of optional fields
// being omitted in the marshalled command, while optional fields with defaults
// have the default assigned on unmarshalled commands.
func TestChainSvrWsCmds(t *testing.T) {
t.Parallel()
testID := int(1)
tests := []struct {
name string
newCmd func() (interface{}, error)
staticCmd func() interface{}
marshalled string
unmarshalled interface{}
}{
{
name: "authenticate",
newCmd: func() (interface{}, error) {
return btcjson.NewCmd("authenticate", "user", "pass")
},
staticCmd: func() interface{} {
return btcjson.NewAuthenticateCmd("user", "pass")
},
marshalled: `{"jsonrpc":"1.0","method":"authenticate","params":["user","pass"],"id":1}`,
unmarshalled: &btcjson.AuthenticateCmd{Username: "******", Passphrase: "pass"},
},
{
name: "notifyblocks",
newCmd: func() (interface{}, error) {
return btcjson.NewCmd("notifyblocks")
},
staticCmd: func() interface{} {
return btcjson.NewNotifyBlocksCmd()
},
marshalled: `{"jsonrpc":"1.0","method":"notifyblocks","params":[],"id":1}`,
unmarshalled: &btcjson.NotifyBlocksCmd{},
},
{
name: "stopnotifyblocks",
newCmd: func() (interface{}, error) {
return btcjson.NewCmd("stopnotifyblocks")
},
staticCmd: func() interface{} {
return btcjson.NewStopNotifyBlocksCmd()
},
marshalled: `{"jsonrpc":"1.0","method":"stopnotifyblocks","params":[],"id":1}`,
unmarshalled: &btcjson.StopNotifyBlocksCmd{},
},
{
name: "notifynewtransactions",
newCmd: func() (interface{}, error) {
return btcjson.NewCmd("notifynewtransactions")
},
staticCmd: func() interface{} {
return btcjson.NewNotifyNewTransactionsCmd(nil)
},
marshalled: `{"jsonrpc":"1.0","method":"notifynewtransactions","params":[],"id":1}`,
unmarshalled: &btcjson.NotifyNewTransactionsCmd{
Verbose: btcjson.Bool(false),
},
},
{
name: "notifynewtransactions optional",
newCmd: func() (interface{}, error) {
return btcjson.NewCmd("notifynewtransactions", true)
},
staticCmd: func() interface{} {
return btcjson.NewNotifyNewTransactionsCmd(btcjson.Bool(true))
},
marshalled: `{"jsonrpc":"1.0","method":"notifynewtransactions","params":[true],"id":1}`,
unmarshalled: &btcjson.NotifyNewTransactionsCmd{
Verbose: btcjson.Bool(true),
},
},
{
name: "stopnotifynewtransactions",
newCmd: func() (interface{}, error) {
return btcjson.NewCmd("stopnotifynewtransactions")
},
staticCmd: func() interface{} {
return btcjson.NewStopNotifyNewTransactionsCmd()
},
marshalled: `{"jsonrpc":"1.0","method":"stopnotifynewtransactions","params":[],"id":1}`,
unmarshalled: &btcjson.StopNotifyNewTransactionsCmd{},
},
{
name: "notifyreceived",
newCmd: func() (interface{}, error) {
return btcjson.NewCmd("notifyreceived", []string{"1Address"})
},
staticCmd: func() interface{} {
return btcjson.NewNotifyReceivedCmd([]string{"1Address"})
},
marshalled: `{"jsonrpc":"1.0","method":"notifyreceived","params":[["1Address"]],"id":1}`,
unmarshalled: &btcjson.NotifyReceivedCmd{
Addresses: []string{"1Address"},
},
},
{
name: "stopnotifyreceived",
newCmd: func() (interface{}, error) {
return btcjson.NewCmd("stopnotifyreceived", []string{"1Address"})
},
staticCmd: func() interface{} {
return btcjson.NewStopNotifyReceivedCmd([]string{"1Address"})
},
marshalled: `{"jsonrpc":"1.0","method":"stopnotifyreceived","params":[["1Address"]],"id":1}`,
unmarshalled: &btcjson.StopNotifyReceivedCmd{
Addresses: []string{"1Address"},
},
},
{
name: "notifyspent",
newCmd: func() (interface{}, error) {
return btcjson.NewCmd("notifyspent", `[{"hash":"123","index":0}]`)
},
staticCmd: func() interface{} {
ops := []btcjson.OutPoint{{Hash: "123", Index: 0}}
return btcjson.NewNotifySpentCmd(ops)
},
marshalled: `{"jsonrpc":"1.0","method":"notifyspent","params":[[{"hash":"123","index":0}]],"id":1}`,
unmarshalled: &btcjson.NotifySpentCmd{
OutPoints: []btcjson.OutPoint{{Hash: "123", Index: 0}},
},
},
{
name: "stopnotifyspent",
newCmd: func() (interface{}, error) {
return btcjson.NewCmd("stopnotifyspent", `[{"hash":"123","index":0}]`)
},
staticCmd: func() interface{} {
ops := []btcjson.OutPoint{{Hash: "123", Index: 0}}
return btcjson.NewStopNotifySpentCmd(ops)
},
marshalled: `{"jsonrpc":"1.0","method":"stopnotifyspent","params":[[{"hash":"123","index":0}]],"id":1}`,
unmarshalled: &btcjson.StopNotifySpentCmd{
OutPoints: []btcjson.OutPoint{{Hash: "123", Index: 0}},
},
},
{
name: "rescan",
newCmd: func() (interface{}, error) {
return btcjson.NewCmd("rescan", "123", `["1Address"]`, `[{"hash":"0000000000000000000000000000000000000000000000000000000000000123","index":0}]`)
},
staticCmd: func() interface{} {
addrs := []string{"1Address"}
ops := []btcjson.OutPoint{{
Hash: "0000000000000000000000000000000000000000000000000000000000000123",
Index: 0,
}}
return btcjson.NewRescanCmd("123", addrs, ops, nil)
},
marshalled: `{"jsonrpc":"1.0","method":"rescan","params":["123",["1Address"],[{"hash":"0000000000000000000000000000000000000000000000000000000000000123","index":0}]],"id":1}`,
unmarshalled: &btcjson.RescanCmd{
BeginBlock: "123",
Addresses: []string{"1Address"},
OutPoints: []btcjson.OutPoint{{Hash: "0000000000000000000000000000000000000000000000000000000000000123", Index: 0}},
EndBlock: nil,
},
},
{
name: "rescan optional",
newCmd: func() (interface{}, error) {
return btcjson.NewCmd("rescan", "123", `["1Address"]`, `[{"hash":"123","index":0}]`, "456")
},
staticCmd: func() interface{} {
addrs := []string{"1Address"}
ops := []btcjson.OutPoint{{Hash: "123", Index: 0}}
return btcjson.NewRescanCmd("123", addrs, ops, btcjson.String("456"))
},
marshalled: `{"jsonrpc":"1.0","method":"rescan","params":["123",["1Address"],[{"hash":"123","index":0}],"456"],"id":1}`,
unmarshalled: &btcjson.RescanCmd{
BeginBlock: "123",
Addresses: []string{"1Address"},
OutPoints: []btcjson.OutPoint{{Hash: "123", Index: 0}},
EndBlock: btcjson.String("456"),
},
},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Marshal the command as created by the new static command
// creation function.
marshalled, err := btcjson.MarshalCmd(testID, test.staticCmd())
if err != nil {
t.Errorf("MarshalCmd #%d (%s) unexpected error: %v", i,
test.name, err)
continue
}
if !bytes.Equal(marshalled, []byte(test.marshalled)) {
t.Errorf("Test #%d (%s) unexpected marshalled data - "+
"got %s, want %s", i, test.name, marshalled,
test.marshalled)
continue
}
// Ensure the command is created without error via the generic
// new command creation function.
cmd, err := test.newCmd()
if err != nil {
t.Errorf("Test #%d (%s) unexpected NewCmd error: %v ",
i, test.name, err)
}
// Marshal the command as created by the generic new command
// creation function.
marshalled, err = btcjson.MarshalCmd(testID, cmd)
if err != nil {
t.Errorf("MarshalCmd #%d (%s) unexpected error: %v", i,
test.name, err)
continue
}
if !bytes.Equal(marshalled, []byte(test.marshalled)) {
t.Errorf("Test #%d (%s) unexpected marshalled data - "+
"got %s, want %s", i, test.name, marshalled,
test.marshalled)
continue
}
var request btcjson.Request
if err := json.Unmarshal(marshalled, &request); err != nil {
t.Errorf("Test #%d (%s) unexpected error while "+
"unmarshalling JSON-RPC request: %v", i,
test.name, err)
continue
}
cmd, err = btcjson.UnmarshalCmd(&request)
if err != nil {
t.Errorf("UnmarshalCmd #%d (%s) unexpected error: %v", i,
test.name, err)
continue
}
if !reflect.DeepEqual(cmd, test.unmarshalled) {
t.Errorf("Test #%d (%s) unexpected unmarshalled command "+
"- got %s, want %s", i, test.name,
fmt.Sprintf("(%T) %+[1]v", cmd),
fmt.Sprintf("(%T) %+[1]v\n", test.unmarshalled))
continue
}
}
}