Apache Flink Stream processing

I am new to flink and I am need help with Windowing function.

I have a stream (for now lets say we are reading 100 elements through a file in my local).

For example, lets say we get a stream of price tickers:

{"eventTime": "2020-10-21T18:08:34.269973", "ticker": "AAPL", "price": 32.57}

{"eventTime": "2020-10-21T18:08:34.793659", "ticker": "TBV", "price": 5.69}

{"eventTime": "2020-10-21T18:08:34.890711", "ticker": "INTC", "price": 24.27}

{"eventTime": "2020-10-21T18:08:34.984684", "ticker": "MSFT", "price": 48.21}

I need to write flink code:

How many AAPL stocks came in a minute?

Out of 100 stocks how many AAPL stocks were above $50?

All this needs to be done in local eclipse IDE.

I need help where I/you share screen and you walk me through an example and help me understand the code.

And I have few more questions where I need help.

Навыки: Java, Linux, PHP, Архитектура ПО, Программирование на С

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