[HttpGet]
public IAsyncEnumerable<Product> Get()
    => productsRepository.GetAllProducts();

The type ‘IAsyncEnumerable’ exists in both ‘System.Interactive.Async, Version=3.2.0.0, Culture=neutral, PublicKeyToken=94bc3704cddfc263’
and ‘System.Runtime, Version=4.2.2.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a’

<Target Name="AddAssemblyAliasToReactiveAsync" AfterTargets="ResolveAssemblyReferences">
    <ItemGroup>
        <ReferencePath Condition=" '%(FileName)' == 'System.Interactive.Async' ">
            <Aliases>reactive</Aliases>
        </ReferencePath>
    </ItemGroup>
</Target>

‘AsyncEnumerableReader’ reached the configured maximum size of the buffer when enumerating a value of type ‘<type>’. 
This limit is in place to prevent infinite streams of ‘IAsyncEnumerable<>’ from continuing indefinitely. 
If this is not a programming mistake, consider ways to reduce the collection size, or consider manually converting ‘<type>’ into a list rather than increasing the limit.

function timeDiff(current, prev) {
  const millisecond = current - prev;
  const second = millisecond / 1000;
  const minute = second / 60;
  const hour = minute / 60;
  const day = hour / 24;
  const week = day / 7;
  const month = week / 4.3;
  const year = month / 12;
  const quarter = year / 4;
  const unitValues = {
    millisecond,
    second,
    minute,
    hour,
    day,
    week,
    month,
    year,
    quarter
  };
  return function diffValueByUnit(unitKey) {
    return unitValues[unitKey];
  };
}


const from = new Date();
from.setDate(from.getDate() - 2);
console.log(from);
const to = new Date(Date.now());
console.log(to);
const diff = timeDiff(from, to);
const result = parseFloat(Math.round(diff("hour")));
console.log(result);
const rtf = new Intl.RelativeTimeFormat("fa");
console.log(rtf.format(result, "hour"));

> Wed Feb 19 2020 02:24:36 GMT+0330 (Iran Standard Time)
> Fri Feb 21 2020 02:24:36 GMT+0330 (Iran Standard Time)
> -48
> "۴۸ ساعت پیش"