How can i add direction lines on my map ?

[azimari-toure-ikbal]

Hello everyone ! This is my map and I want to be able to create lines from point A to point B passing by the markers. So how can I draw lines between two markers please ? This will look like Google Directions API

[gregegan]

I also am looking to build something similar and looking for recommended path.

I also came across this old thread on a similar topic
#591

[gregegan]

Here is another thread #1379 (comment)

[azimari-toure-ikbal]

Thank you ! I'll have a look but this is definitely complicated.