跳转到主要内容

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概述

ChainStream GraphQL 提供三个预测市场数据 Cube，主要在 Polygon 上使用。这些 Cube 覆盖预测市场的完整生命周期 — 从创建、交易到结算。
预测市场 Cube 属于 EVM Chain Group，主要配合 network: polygon 使用。

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PredictionTrades

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近期预测市场交易

query {
  EVM(network: polygon) {
    PredictionTrades(
      limit: {count: 20}
      orderBy: Block_Time_DESC
    ) {
      Block { Time }
      Transaction { Hash }
      Trade {
        Buyer
        Seller
        Amount
        Price
        Fee
      }
      Prediction {
        Condition { Id Outcomes }
        Question { Id }
        Outcome
        Marketplace { ProtocolName }
      }
    }
  }
}

​
特定 Condition 的交易

query {
  EVM(network: polygon) {
    PredictionTrades(
      conditionId: {is: "CONDITION_ID"}
      limit: {count: 50}
      orderBy: Block_Time_DESC
    ) {
      Block { Time }
      Trade { Buyer Seller Amount Price }
      Prediction { Outcome OutcomeToken { SmartContract } }
    }
  }
}

​
按 Marketplace 统计交易量

query {
  EVM(network: polygon) {
    PredictionTrades(
      marketplace: {is: "Polymarket"}
      limit: {count: 100}
      orderBy: Block_Time_DESC
    ) {
      Block { Time }
      Trade { Amount Price }
      Prediction {
        Question { Id }
        Marketplace { ProtocolName }
      }
      count
      sum(of: Trade_Amount)
    }
  }
}

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PredictionManagements

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市场创建与解析事件

query {
  EVM(network: polygon) {
    PredictionManagements(
      limit: {count: 20}
      orderBy: Block_Time_DESC
    ) {
      Block { Time }
      Transaction { Hash }
      Management {
        EventType
        Description
        Group
        Prediction {
          Condition { Id }
          Question { Id }
          Marketplace { ProtocolName }
        }
      }
    }
  }
}

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按事件类型过滤

query {
  EVM(network: polygon) {
    PredictionManagements(
      eventType: {is: "ConditionResolution"}
      limit: {count: 20}
      orderBy: Block_Time_DESC
    ) {
      Block { Time }
      Management {
        EventType
        Description
        Prediction { Condition { Id Outcomes } }
      }
    }
  }
}

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PredictionSettlements

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近期结算

query {
  EVM(network: polygon) {
    PredictionSettlements(
      limit: {count: 20}
      orderBy: Block_Time_DESC
    ) {
      Block { Time }
      Transaction { Hash }
      Settlement {
        EventType
        Holder
        OutcomeTokenIds
        Amounts
        Prediction {
          Condition { Id }
          CollateralToken { SmartContract Symbol }
          Marketplace { ProtocolName }
        }
      }
    }
  }
}

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特定持有者的结算

query {
  EVM(network: polygon) {
    PredictionSettlements(
      holder: {is: "0xHOLDER_ADDRESS"}
      limit: {count: 50}
      orderBy: Block_Time_DESC
    ) {
      Block { Time }
      Settlement {
        EventType
        Amounts
        Prediction { Condition { Id } }
      }
    }
  }
}

​
相关文档

数据 Cube

预测市场 Cube 的详细字段结构。

Chain Groups

预测市场 Cube 属 EVM 专属，主要在 Polygon 使用。