No, smoking is not the only way one can consume cannabis.  Below are some other ways cannabis can be consumed:

1) Edibles - Cannabis-infused food products that are consumed like food, generally in form of gummies, chocolate, brownies, and drinks. 

2) Transdermal Patches - allow cannabinoids to penetrate the skin and enter the bloodstream.

3) Vape - Heated cannabis oils to the levels that release cannabinoids and other compounds in the air producing a vapor that is inhaled.

4) Pills, Capsules, Tablets - Cannabis in the form of pills, capsules, and tablets allow for precise dosage without the calories of edibles.

5) Powder - is a form of powder THC that can dissolve in liquid for consumption.

6) Tinctures - Extracts are cannabis flowers & leaves that are soaked in a solvent over a long period of time.

7) Topicals - These are applied directly to the skin in balms, gels, lotions, and salves to treat muscle aches and pains.