Hi Krit !
From what i see, the problem might be the url of thumbnailImageUrl and the url itself, LINE requires you to use HTTPS for the url, so make sure...
Post : 21/02/2018
Hello Agis, it's based on how you code about it, you can save the history and check for chat frequency and such. But keep in mind that unlike regular user a...
Post : 20/02/2018