listMarketBook error -32602 (invalid params)

[Wonker_]

I'm calling the listMarketBook method.

My first request,

"jsonrpc":"2.0","id":1,"method":"SportsAPING/v1.0/listMarketBook","params":{"marketIds":["1.109309710"]}}

returns

{"jsonrpc":"2.0","result":[{"marketId":"1.109309710", ... ]}],"id":1}

That's all gravy.

My second request,

{"jsonrpc":"2.0","id":2,"method":"SportsAPING/v1.0/listMarketBook","params":{"marketIds":["1.109309710"],"priceProjection":["EX_BEST_OFFERS"]}}

returns,

{"jsonrpc":"2.0","error":{"code":-32602,"message":"DSC-0018"},"id":2}

I believe I'm missing something that's going to make me look very stupid...

[PT_PT]

Hi Wonker,

Take a look at this page: https://api.developer.betfair.com/se...-+8th+May+2013

This method has been changed yesterday, 8th May's release

[StefanBelo.]

listMarketBook and priceProjection settings

I want to query just best offered prices for back and lay, so I set my parameters:

{
"jsonrpc": "2.0",
"method": "SportsAPING/v1.0/listMarketBook",
"params": {
"marketIds": [
"1.109510186"
],
"priceProjection": {
"priceData": [
"EX_BEST_OFFERS"
],
"exBestOfferOverRides": {
"bestPricesDepth": 1,
"rollupModel": "NONE",
"rollupLimit": 0
}
},
"orderProjection": "ALL",
"matchProjection": "NO_ROLLUP"
},
"id": 5
}

Instead of 1 price for back and lay there are 3 prices for back and lay. How should I set priceProjection and exBestOfferOverRides to get 1 or x number of prices for back and lay side?

[StefanBelo.]

listMarketBook and no bets in response

The listMarketBook method will be used for updating selections prices as well. In such case when I am not interested for bet/s status placed on a market there is no way to set OrderProjection and MatchProjection to return no bets. Please add this option for this api method.

[BetfairDeveloperProgram]

Instead of 1 price for back and lay there are 3 prices for back and lay. How should I set priceProjection and exBestOfferOverRides to get 1 or x number of prices for back and lay side?

Please try

[{"jsonrpc": "2.0", "method": "SportsAPING/v1.0/listMarketBook", "params": {"marketIds":["1.109510186"],"priceProjection":{"priceData":["EX_BEST_OFFERS"],"exBestOffersOverrides":{"bestPricesDepth":"1","rollupModel":"NONE"}},"orderProjection":"ALL","matchProjection":"NO_ROLLUP"}, "id": 1}]

[BetfairDeveloperProgram]

In such case when I am not interested for bet/s status placed on a market there is no way to set OrderProjection and MatchProjection to return no bets. Please add this option for this api method

Both OrderProjection and MatchProjection are optional fields. Therefore, if you only require price data you can exclude these from the listMarketBook request.

[{"jsonrpc": "2.0", "method": "SportsAPING/v1.0/listMarketBook", "params": {"marketIds":["1.109284082"],"priceProjection":{"priceData":["EX_BEST_OFFERS"]}}, "id": 1}]

[StefanBelo.]

Please try

[{"jsonrpc": "2.0", "method": "SportsAPING/v1.0/listMarketBook", "params": {"marketIds":["1.109510186"],"priceProjection":{"priceData":["EX_BEST_OFFERS"],"exBestOffersOverrides":{"bestPricesDepth":"1","rollupModel":"NONE"}},"orderProjection":"ALL","matchProjection":"NO_ROLLUP"}, "id": 1}]

Unfortunately treating that parameter as string does not return just 1 price in array, there are still returned 3 prices as by default.

[StefanBelo.]

Both OrderProjection and MatchProjection are optional fields. Therefore, if you only require price data you can exclude these from the listMarketBook request.

Thanks, I did not realize that, now it works as expected.