Ok, I just realized that I probably answered the question less helpfully with the chocolate syrup idea.
Now that I understand that you're trying to make a chocolate confection, probably a molded chocolatw or possibly a truffle…
There we go. Truffles would work extremely well for this. Aim for a truffle.
To get the coffee flavoring, best results will likely be returned with a cold extraction. Not sure how much you want to make, but you basically take about a cup of regular ground coffee, about two cups of cold water, combine and stir. Place in refrigerator for 24 hours. Drain, saving liquid - press on coffee grounds to extract more liquid (think cheesecloth ball and twist). If you want to get all fancy about this, look at a Toddy coffee kit - they make some marginally specialized hardware to make coffee this way. This turns out a highly concentrated coffee; either dilute with hot water to get "regular american style coffee", or use in cooking or baking like you would espresso… except with way less bitterness.
I would look at the basic truffle recipe, plus a tablespoon or two of this coffee.
That would be a pound of shaved or chopped chocolate, a cup of heavy cream… boil cream, pour over chocolate, stir with whisk, stir in the coffee and a dash of vanilla extract, then form into balls, dust, and chill.
The dust is usually powdered sugar or cocoa powder or a mix of the two. I would suggest a ratio like 1 teaspoon of turkish grind coffee to 1 tablespoon of powdered sugar to 2 tablespoons of cocoa to make the dust for these.