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Version: 8.4.12.1

Schema: MLinkStream (ID: 3380)

METADATA​

AttributeValue
Topic3325-mlink
MLink TokenMLinkWs

Note: The symbol = next to a field number indicates that it is a primary key.

BODY​

#FieldTypeComment
100msgNamestring(32)(required) a SpiderRock message name (topic channel) (can be string name or protobuf message number)
103wheretext2(optional) where clause; eg. "(bidexch:eq:AMEX
106viewtext2(optional) list (subset) of field names to return with this message (eg. bidprice,askprice,bidsize,asksize) (default is all names)
109unsubscribeenum : YesNo(optional) if set to Yes the specified message type will be unsubscribed and thus no longer return
112sessionIDshort(optional) actions below apply only to the sessionID virtual session; should be zero for non-multiplexed web-socket connections.
115queryIDlong(optional) queryID will be reflected back in the corresponding MLinkStreamAck message; nothing is assumed about structure of this number
118queryLabelstring(64)(optional) query label; used for logging and query tracking
121activeLatencyint(optional) number of milliseconds between active send attempts (1 = minimum delay, 0 = wait for SignalReady) [default = 0]
124sysEnvironmentenum : SysEnvironment(optional) records cannot have [sysEnvironment + sysRealm] in their route history (no loops)
127sysRealmenum : SysRealm
130highwaterTslong(optional) records must have a header.sentTs that is later than this value (nanoseconds after the UNIX epoch) [-1 means start from current server side highwaterTs]
133stripeFiltertext1(optional) if supplied records must be within the specified stripe
136schemaHashlong(optional) message schema hash [if supplied and matches server schema hash for this message binary encoding will be used]
139localMsgTypeushort(optional) if != 0 the msgType number will be translated from msgType to localMsgType in the mlink server (protobuf and binary messages)
142localMsgNamestring(32)(optional) if exists the message name will be translated from msgName to localMsgName in the mlink server (json messages)

Get Schema API Call​

import requests 

# Replace with your desired MLINK URL 
MLINK_PROD_URL = 'https://mlink-live.nms.saturn.spiderrockconnect.com/rest/json'

# Replace with your MLINK API Key
API_KEY = 'XXXX-XXXX-XXXX-XXXX'

# Replace with your desired MsgType.  
MSG_TYPE = 'MLinkStream'

# Request Parameters for Get Schema Of The MsgType
params = {
#Required Parameters
"apiKey": API_KEY,
"cmd": 'getschema',
"msgType": MSG_TYPE, 
}

response = requests.get(MLINK_PROD_URL, params=params)

Get Msg API Call​

import requests 

# Replace with your desired MLINK URL 
MLINK_PROD_URL = 'https://mlink-live.nms.saturn.spiderrockconnect.com/rest/json'

# Replace with your MLINK API Key
API_KEY = 'XXXX-XXXX-XXXX-XXXX'

# Replace with your desired MsgType.  
MSG_TYPE = 'MLinkStream'

# Replace with your pkey value for getting the specific message desired
PKEY = 'ReplaceThisValueForTheQueryToWork'

# Replace with your desired view. A "|" separated list of views can be provided
# If no view is provided, all views will be returned. 
VIEW = 'msgName|where|view|unsubscribe|sessionID|queryID|queryLabel|activeLatency|sysEnvironment|sysRealm|highwaterTs|stripeFilter|schemaHash|localMsgType|localMsgName'

# Replace with your desired where clause.
# a string in the form "field1:eq:valuse" or "(field1:ne:value1 & field1:ne:value2)
# "WHERE" clauses can contain the following comparison symbols:
# :gt: is greater than
# :ge: is greater than or equal to
# :lt: is less than
# :le: is less than or equal to
# :eq: is equal
# :ne: is not equal
# %26 is an AND statement
# | is an OR statement
# :sw: is starts with
# :ew: is ends with
# :cv: is contains values
# :nv: is does not contain value
# :cb: is contained between (two dates for instance) separated by '$'
WHERE = 'msgName:eq:ExampleString'

# Request Parameters for getmsg Of The MsgType
params = {
    # Required Parameters
    "apiKey": API_KEY,
    "cmd": 'getmsg',
    "pkey": PKEY,
    "msgType": MSG_TYPE,
    # Optional Parameters
    "view": VIEW, 
    "where": WHERE
}

response = requests.get(MLINK_PROD_URL, params=params)

Get Msgs API Call​

import requests 

# Replace with your desired MLINK URL 
MLINK_PROD_URL = 'https://mlink-live.nms.saturn.spiderrockconnect.com/rest/json'

# Replace with your MLINK API Key
API_KEY = 'XXXX-XXXX-XXXX-XXXX'

# Replace with your desired MsgType.  
MSG_TYPE = 'MLinkStream'

# Replace with your desired view. A "|" separated list of views can be provided
# If no view is provided, all views will be returned
VIEW = 'msgName|where|view|unsubscribe|sessionID|queryID|queryLabel|activeLatency|sysEnvironment|sysRealm|highwaterTs|stripeFilter|schemaHash|localMsgType|localMsgName'

# Replace with your desired where clause.
# a string in the form "field1:eq:value" or "(field1:ne:value1 & field1:ne:value2)
# "WHERE" clauses can contain the following comparison symbols:
# :gt: is greater than
# :ge: is greater than or equal to
# :lt: is less than
# :le: is less than or equal to
# :eq: is equal
# :ne: is not equal
# %26 is an AND statement
# | is an OR statement
# :sw: is starts with
# :ew: is ends with
# :cv: is contains values
# :nv: is does not contain value
# :cb: is contained between (two dates for instance) separated by '$'
WHERE = 'msgName:eq:ExampleString'

# Replace with your desired limit of how many messages you receive. The default limit is 500
LIMIT = 500

# Order clause eg. "(field1:DESC | field1:ASC | field2:DESC:ABS | field2:ASC:ABS" (default is unordered; default is faster)
ORDER = 'msgName:ASC'

# Request Parameters for getmsgs Of The MsgType
params = {
    # Required Parameters
    "apiKey": API_KEY,
    "cmd": 'getmsgs',
    "msgType": MSG_TYPE,
    # Optional Parameters
    "view": VIEW, 
    "where": WHERE,
    "limit": LIMIT,
    "order": ORDER
}

response = requests.get(MLINK_PROD_URL, params=params)

Get Aggregate API Call​

import requests 

# Replace with your desired MLINK URL 
MLINK_PROD_URL = 'https://mlink-live.nms.saturn.spiderrockconnect.com/rest/json'

# Replace with your MLINK API Key
API_KEY = 'XXXX-XXXX-XXXX-XXXX'

# Replace with your desired MsgType.  
MSG_TYPE = 'MLinkStream'

# Replace with fields you want to see aggregate values for. A "|" separated list of measures should be provided
MEASURE = 'msgName|where|view|unsubscribe|sessionID|queryID|queryLabel|activeLatency|sysEnvironment|sysRealm|highwaterTs|stripeFilter|schemaHash|localMsgType|localMsgName'

# Replace with fields you want to see aggregated. A "|" separated list of fields should be provided
GROUP = 'unsubscribe|sysEnvironment|sysRealm'

# Replace with your desired where clause.
# a string in the form "field1:eq:value" or "(field1:ne:value1 & field1:ne:value2)
# "WHERE" clauses can contain the following comparison symbols:
# :gt: is greater than
# :ge: is greater than or equal to
# :lt: is less than
# :le: is less than or equal to
# :eq: is equal
# :ne: is not equal
# %26 is an AND statement
# | is an OR statement
# :sw: is starts with
# :ew: is ends with
# :cv: is contains values
# :nv: is does not contain value
# :cb: is contained between (two dates for instance) separated by '$'
WHERE = 'msgName:eq:ExampleString'

# Request Parameters for getaggregate Of The MsgType
params = {
# Required Parameters
"apiKey": API_KEY,
"cmd": 'getaggregate',
"msgType": MSG_TYPE,
"measure": MEASURE,
"group": GROUP,
# Optional Parameters
"where": WHERE,
}

response = requests.get(MLINK_PROD_URL, params=params)

Get Count API Call​

import requests 

# Replace with your desired MLINK URL 
MLINK_PROD_URL = 'https://mlink-live.nms.saturn.spiderrockconnect.com/rest/json'

# Replace with your MLINK API Key
API_KEY = 'XXXX-XXXX-XXXX-XXXX'

# Replace with your desired MsgType.  
MSG_TYPE = 'MLinkStream'

# Replace with your desired where clause.
# a string in the form "field1:eq:value" or "(field1:ne:value1 & field1:ne:value2)
# "WHERE" clauses can contain the following comparison symbols:
# :gt: is greater than
# :ge: is greater than or equal to
# :lt: is less than
# :le: is less than or equal to
# :eq: is equal
# :ne: is not equal
# %26 is an AND statement
# | is an OR statement
# :sw: is starts with
# :ew: is ends with
# :cv: is contains values
# :nv: is does not contain value
# :cb: is contained between (two dates for instance) separated by '$'
WHERE = 'msgName:eq:ExampleString'

# Request Parameters for getCount Of The MsgType
params = {
# Required Parameters
"apiKey": API_KEY,
"cmd": 'getcount',
"msgType": MSG_TYPE,
# Optional Parameters
"where": WHERE,
}

response = requests.get(MLINK_PROD_URL, params=params)