In a large bowl, combine the sliced cucumbers and salt. Toss well and let sit for about 10 minutes to draw out excess moisture.
After 10 minutes, drain any liquid from the cucumbers and pat them dry with paper towels.
In a separate bowl, whisk together the sugar, rice vinegar, soy sauce, sesame oil, and chili garlic sauce until the sugar is dissolved.
Pour the dressing over the cucumbers and toss to coat evenly.
Sprinkle with sesame seeds and chopped green onions. Toss again gently.
Chill in the refrigerator for at least 15 minutes before serving to allow the flavors to meld.