what is mining inserter?

inserter that take ore from resource tile.

technically,this mod spawn a superspeed infinte-energy and invisiable mining drill at hand side of your inserter,
although it still require entity deletion,but by the way original developer take,it should not crash the game when entity is 404 not found.

is this created before?

Yes,most of code is simplified version of this(https://mods.factorio.com/mod/MinerInserter)
but it seems not undated,and I want every inserter has such functionality.

and this version seems not supporting rotating.
(you can try bobs inserter,although it won`t start mining if you just change setting,but if you rotate it,it should function properly)
((and I have no idea to fix it))

wait,your mod spawn ore item too quickly!

if I lower the spawn rate,it might be too slow for some high speed inserter acting slow,
and you probably will not want to do it by hand,this is automation game I mean...

your code sucks,I can give better code for this.

Finally,a worthy developer,your contribution will be legendary!