If I want to scratch my left hear, I would use my left hand. Why in the world I'll do it with my right foot?

What happened to the simple screenshot?

This seems to be the flow:

    +----------+        +----------+          +-------------+
    |          |        |          |          |             |
    |   NodeJS +------->+   POI    +--------->+ Puppeteer   +----+
    |          |        |          |          |             |    |
    +----------+        +----------+          +-------------+    |
                                                                 |
                                                                 |
    +----------+        +----------+          +-------------+    |
    |          |        |          |          |             |    |
    |   NodeJS <--------+   POI    <----------+ Puppeteer   +<---+
    |          |        |          |          |             |
    +----------+        +----------+          +-------------+

* drawn with http://asciiflow.com/