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According to https://en.wikipedia.org/wiki/Visa_policy_of_Bosnia_and_Herzegovina EU citizens can enter using a national ID card (incl. Irish passport card) for a stay of up to 90 days within 180 days
Also
Citizens of the Kingdom of Sweden are exempted from the visa requirement when entering, exiting or travelling through Bosnia and Herzegovina to 90 days, for a period of six months, starting from the day of entry.
http://www.mvp.gov.ba/konzularne_informacije/vize/Default.aspx?template_id=16&s1=331&id=5173