MarketDataRequest

To enable/disable quotes streaming, client is expected to send an individual request per each instrument. Subscription is considered to be canceled after each disconnection.

MarketDataRequest message fields, Tag 35=V
Tag	Field Name	Required	Type	Comments
<Standard Header>
262	MDReqID	Y	String	User-defined value, unique per session.
1500	MDStreamID	Y	String	Custom identificator to define source feed. Please contact your manager to get actual list of available feeds and corresponding instruments.
263	SubscriptionRequestType	Y	Int	Request type enumeration, possible values are: 1 = Snapshot + Updates (Subscribe) 2 = Unsubscribe
264	MarketDepth	Y	Int	Depth of Market to subscribe 1 = TOP of the book 2 = Full book
265	MDUpdateType	Y	Int	0 = Full refresh
267	NoMDEntryTypes	Y	Int	Number of MDEntryTypes requested. Expected to be=2
>269	MDEntryType	Y	Int	0 = Bid 1 = Offer
146	NoRelatedSym	Y	Int	Number of instruments requested, must be = 1
>55	Symbol	Y	String	Instrument symbol to be quoted, e.g. BTC/USDT