Ok I will answer my own question. After reading more about Eve, you can use any of Flask's methods because Eve is simply inheriting from the Flask class. For example, you can do this:
from eve import Eve
app = Eve()
@app.route("/x")
def hello():
return "Hello World!"
if __name__ == '__main__':
app.run(debug=True)
There's more info at the Flask documentation site here: Flask
