Javascript express microservice function that compares two objects within the same array and returns the differences in key-value pairs. Gets called from POST localhost/data, and is passed the array with 2 objects. This function then needs to return an array of differences in the body.

So it would need,

app.post("/data" , (req,res)=>{

//code here

}

Ex:

arrayOriginal = [ {name: 'Paul', school:'Harper Elementary', cost:130, grade:'Second'},

{name: 'Susan', school: 'Harper Elementary', cost: 130, grade:'second'} ]

Result should be:

[ 'name: Paul -> Susan' , 'grade: Second -> second' ]