Back/Lay odds for ladder

[PROGRAMMING]

Hello,

How can I retrieve the back/lay odds of a particular event in order to create the ladder that trade software have?


Many thanks
Al

[jabe]

They're available via listMarketBook.

[PROGRAMMING]

They're available via listMarketBook.

Hello again,

I tried listMarketBook and the following is the enquiry I send to the server:

{
	"filter": {
		"eventIds": ["28328368"]
	},
	"maxResults": 100,
	"marketProjection": ["COMPETITION", "EVENT", "EVENT_TYPE", "RUNNER_DESCRIPTION", "RUNNER_METADATA", "MARKET_START_TIME"],
	"sort": "MINIMUM_TRADED",
	"marketIds": ["1.132972749"],
	"priceProjection": {
		"priceData": ["EX_BEST_OFFERS", "EX_TRADED"],
		"virtualise": true
	}
}

and I have the following answer:

{
	"jsonrpc": "2.0",
	"result": [{
		"marketId": "1.132972749",
		"isMarketDataDelayed": true,
		"status": "OPEN",
		"betDelay": 0,
		"bspReconciled": false,
		"complete": true,
		"inplay": false,
		"numberOfWinners": 1,
		"numberOfRunners": 2,
		"numberOfActiveRunners": 2,
		"totalMatched": 0.0,
		"totalAvailable": 2869.63,
		"crossMatching": true,
		"runnersVoidable": false,
		"version": 1715405509,
		"runners": [{
			"selectionId": 2407528,
			"handicap": 0.0,
			"status": "ACTIVE",
			"totalMatched": 0.0,
			"ex": {
				"availableToBack": [],
				"availableToLay": [{
					"price": 1.01,
					"size": 2679.05
				}, {
					"price": 7.0,
					"size": 17.07
				}],
				"tradedVolume": []
			}
		}, {
			"selectionId": 2407529,
			"handicap": 0.0,
			"status": "ACTIVE",
			"totalMatched": 0.0,
			"ex": {
				"availableToBack": [{
					"price": 430.0,
					"size": 14.38
				}, {
					"price": 100.0,
					"size": 27.06
				}, {
					"price": 1.8,
					"size": 21.58
				}],
				"availableToLay": [],
				"tradedVolume": []
			}
		}]
	}],
	"id": "1"
}

There are just two pricing on the back and three on the lay but I was expecting more than that

Where am I doing wrong?

Many thanks
Al

[LiamP]

You requested 'EX_BEST_OFFERS' which defaults to top 3 prices, for more use ExBestOffersOverrides or to get all offers use 'EX_ALL_OFFERS'.


http://docs.developer.betfair.com/do...riceProjection

[PROGRAMMING]

You requested 'EX_BEST_OFFERS' which defaults to top 3 prices, for more use ExBestOffersOverrides or to get all offers use 'EX_ALL_OFFERS'.


http://docs.developer.betfair.com/do...riceProjection

I ran again the request with EX_ALL_OFFERS

{
	"filter": {
		"eventIds": ["28328368"]
	},
	"maxResults": 100,
	"marketProjection": ["COMPETITION", "EVENT", "EVENT_TYPE", "RUNNER_DESCRIPTION", "RUNNER_METADATA", "MARKET_START_TIME"],
	"sort": "MINIMUM_TRADED",
	"marketIds": ["1.132972749"],
	"priceProjection": {
		"priceData": ["EX_ALL_OFFERS", "EX_TRADED"],
		"virtualise": true
	}
}

and the following is the result:

{
	"jsonrpc": "2.0",
	"result": [{
		"marketId": "1.132972749",
		"isMarketDataDelayed": true,
		"status": "OPEN",
		"betDelay": 0,
		"bspReconciled": false,
		"complete": true,
		"inplay": false,
		"numberOfWinners": 1,
		"numberOfRunners": 2,
		"numberOfActiveRunners": 2,
		"totalMatched": 0.0,
		"totalAvailable": 2869.63,
		"crossMatching": true,
		"runnersVoidable": false,
		"version": 1715405509,
		"runners": [{
			"selectionId": 2407528,
			"handicap": 0.0,
			"status": "ACTIVE",
			"totalMatched": 0.0,
			"ex": {
				"availableToBack": [],
				"availableToLay": [{
					"price": 1.01,
					"size": 2679.05
				}, {
					"price": 7.0,
					"size": 17.07
				}],
				"tradedVolume": []
			}
		}, {
			"selectionId": 2407529,
			"handicap": 0.0,
			"status": "ACTIVE",
			"totalMatched": 0.0,
			"ex": {
				"availableToBack": [{
					"price": 430.0,
					"size": 14.38
				}, {
					"price": 100.0,
					"size": 27.06
				}, {
					"price": 1.8,
					"size": 21.58
				}],
				"availableToLay": [],
				"tradedVolume": []
			}
		}]
	}],
	"id": "1"
}

there are still only five prices available in total with a bet and none of them is matched. Is that correct ?

[LiamP]

Looking at the website, no, unless things have changed since you made that request. Do you get the same response if you remove 'virtualise'?