{"blocks": [{"key": "c7228e5d", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "fa911029", "text": "Design a cryptocurrency trading system integrating with third-party exchanges that expose (nominally) synchronous APIs. Explain the life-cycle and state transitions of a transaction order. Describe how the system should handle third-party exchange timeouts or failures. Describe strategies to cope with spiky traffic loads.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}