Market Data Request Limits

What are Market Data Request Limits?

Although you can request multiple markets from listMarketBook, listRunnerBook/wiki/spaces/BFAPIBETA/pages/1212460 and listMarketProfitandLoss, there are limits on the amount of data requested in one request.

sum(Weight) * number market ids must not exceed 200 points per requests

The following tables explain the "weighting" of data for each MarketProjection or PriceProjection. If you exceed the maximum weighting of 200 points, the API will return a TOO_MUCH_DATA error.

listMarketCatalogue

MarketProjection

Weight

MARKET_DESCRIPTION

1

RUNNER_DESCRIPTION

0

EVENT

0

EVENT_TYPE

0

COMPETITION

0

RUNNER_METADATA

1

MARKET_START_TIME

0

listMarketBook/listRunnerBook

PriceProjection

Weight

Null (No PriceProjection set)

2

SP_AVAILABLE

3

SP_TRADED

7

EX_BEST_OFFERS

5

EX_ALL_OFFERS

17

EX_TRADED

17

Please note: specific combinations of priceProjections will carry different weights that aren't the sum of their individual weights.  Please see a summary of these below:

PriceProjection

Weight

EX_BEST_OFFERS + EX_TRADED

20

EX_ALL_OFFERS + EX_TRADED

32


If exBestOffersOverrides is used the weight is is calculated by weight * (requestedDepth/3).

listMarketProfitandLoss

PriceProjection

Weight

Not applicable

4