Developer shares key lessons from adding Bybit to a multi-exchange trading bot

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A developer building NOVA, a Spot trading automation system, expanded it from a single MEXC integration to also support Bybit across nine of ten trading profiles. The process revealed that exchange-specific assumptions — such as order status fields and quantity formats — had quietly embedded themselves in the core business logic. A key challenge was distinguishing between order acknowledgement and actual execution, since Bybit's initial API response does not confirm a completed fill or final quantity. Fee handling also proved critical, as fees charged in the purchased asset reduce the available balance, requiring rounding-down logic before placing exit orders. The experience led the developer to reframe multi-exchange support not as a simple feature flag but as a capability matrix, where each exchange-market combination must be validated individually against real metadata.

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