Method mapBadRequestError

core/src/utils/error-mapper.ts:192–223

* Maps 400 errors to specific bad request subtypes

(message: string, data: unknown)

     * Maps 400 errors to specific bad request subtypes
     */
    protected mapBadRequestError(message: string, data: unknown): BadRequest {
        const lowerMessage = message.toLowerCase();

        // Detect insufficient funds
        if (
            lowerMessage.includes('insufficient') ||
            lowerMessage.includes('balance') ||
            lowerMessage.includes('not enough')
        ) {
            return new InsufficientFunds(message, this.exchangeName);
        }

        // Detect invalid order
        if (
            lowerMessage.includes('invalid order') ||
            lowerMessage.includes('invalid orderid') ||
            lowerMessage.includes('invalid order id') ||
            lowerMessage.includes('tick size') ||
            lowerMessage.includes('price must be') ||
            lowerMessage.includes('size must be') ||
            lowerMessage.includes('amount must be')
        ) {
            return new InvalidOrder(message, this.exchangeName);
        }

        // Detect validation errors
        if (lowerMessage.includes('validation') || lowerMessage.includes('invalid parameter')) {
            return new ValidationError(message, undefined, this.exchangeName);
        }

        return new BadRequest(message, this.exchangeName);
    }

    /**
     * Maps 404 errors to specific not found subtypes