listMarketBook: Return listMarketBook data

In phillc73/abettor: R bindings to Betfair API-NG

Return listMarketBook data

Description

listMarketBook returns pricing data for the selected market.

Usage

listMarketBook(
  marketIds,
  priceData,
  orderProjection = NULL,
  matchProjection = NULL,
  virtualise = FALSE,
  rolloverStakes = FALSE,
  bestPricesDepth = 3,
  rollupModel = NULL,
  rollupLimit = NULL,
  suppress = FALSE,
  sslVerify = TRUE
)

Arguments

marketIds	String. The market identification number of the required event. IDs can be obtained via listMarketCatalogue. Required. No default.
priceData	String. Supports five price data types, one of which must be specified. Valid price data types are SP_AVAILABLE, SP_TRADED, EX_BEST_OFFERS, EX_ALL_OFFERS and EX_TRADED. Must be upper case. See note below explaining each of these options. Required. no default.
orderProjection	string. Restricts the results to the specified order status. Possible values are: "EXECUTABLE" (An order that has a remaining unmatched portion); "EXECUTION_COMPLETE" (An order that does not have any remaining unmatched portion); "ALL" (EXECUTABLE and EXECUTION_COMPLETE orders). Default value is NULL, which Betfair interprets as "ALL". Optional.
matchProjection	string. If orders are requested (see orderProjection), this specifies the representation of the matches. The three options are: "NO_ROLLUP" (no rollup, return raw fragments), "ROLLUP_BY_PRICE" (rollup matched amounts by distinct matched prices per side) and "ROLLED_UP_BY_AVG_PRICE" (rollup matched amounts by average matched price per side). Optional. Default is NULL.
virtualise	boolean. Indicates if the returned prices should include virtual prices. This is only applicable to EX_BEST_OFFERS and EX_ALL_OFFERS priceData selections. Default value is FALSE. Note that prices on website include virtual bets, so setting this parameter to FALSE may produce different results to manually checking the website. More information on virtual bets can be found here: https://api.developer.betfair.com/services/webapps/docs/display/1smk3cen4v3lu3yomq5qye0ni/Virtual+Bets
rolloverStakes	boolean. Indicates if the volume returned at each price point should be the absolute value or a cumulative sum of volumes available at the price and all better prices. It is only applicable to EX_BEST_OFFERS and EX_ALL_OFFERS price projections. Optional. Default is FALSE. According to Betfair online documentation, this paramter is not supported as yet.
bestPricesDepth	integer. The maximum number of prices to return on each side for each runner. The default value is 3.
rollupModel	string. Determines the model to use when rolling up available sizes. The viable paramter values are "STAKE" (the volumes will be rolled up to the minimum value, which is >= rollupLimit); "PAYOUT" (the volumes will be rolled up to the minimum value, where the payout( price * volume ) is >= rollupLimit); "MANAGED_LIABILITY" (the volumes will be rolled up to the minimum value which is >= rollupLimit, until a lay price threshold. There after, the volumes will be rolled up to the minimum value such that the liability >= a minimum liability. Not supported as yet); "NONE" (No rollup will be applied. However the volumes will be filtered by currency specific minimum stake unless overridden specifically for the channel). The default value is NULL, which Betfair interprets as "STAKE".
rollupLimit	integer. The volume limit to use when rolling up returned sizes. The exact definition of the limit depends on the rollupModel. Ignored if no rollup model is specified. Optional. Default is NULL, which means it will use minimum stake as the default value.
suppress	Boolean. By default, this parameter is set to FALSE, meaning that a warning is posted when the listMarketBook call throws an error. Changing this parameter to TRUE will suppress this warning.
sslVerify	Boolean. This argument defaults to TRUE and is optional. In some cases, where users have a self signed SSL Certificate, for example they may be behind a proxy server, Betfair will fail login with "SSL certificate problem: self signed certificate in certificate chain". If this error occurs you may set sslVerify to FALSE. This does open a small security risk of a man-in-the-middle intercepting your login credentials.

Details

listMarketBook returns pricing data for the selected market. It is also possible to filter price returns based on either those currently available or the volume currently available in the Starting Price (SP) market.

Value

Response from Betfair is stored in listMarketBook variable, which is then parsed from JSON as a list. Only the first item of this list contains the required event type identification details. The runners column includes various lists of price information, which may need to be reformatted (e.g. converted to data frames) depending on the user's circumstances. If the listMarketBook call throws an error, a data frame containing error information is returned.

Notes on priceData options

There are three options for this argument and one of them must be specified. All upper case letters must be used.

SP_AVAILABLE

Amount available for the Betfair Starting Price (BSP) auction.

SP_TRADED

Amount traded in the Betfair Starting Price (BSP) auction. Zero returns if the event has not yet started.

EX_BEST_OFFERS

Only the best prices available for each runner.

EX_ALL_OFFERS

EX_ALL_OFFERS trumps EX_BEST_OFFERS if both settings are present

EX_TRADED

Amount traded in this market on the Betfair exchange.

Note on listMarketBookOps variable

The listMarketBookOps variable is used to firstly build an R data frame containing all the data to be passed to Betfair, in order for the function to execute successfully. The data frame is then converted to JSON and included in the HTTP POST request.

See Also

loginBF, which must be executed first. Do NOT use the DELAY application key. The DELAY application key does not support price data.

Examples

## Not run: 
# Return all prices for the requested market. This actual market ID is
unlikely to work and is just for demonstration purposes.
listMarketBook(marketIds = "1.116700328", priceData = "EX_ALL_OFFERS")

## End(Not run)

phillc73/abettor documentation built on June 10, 2022, 4:43 p.m.