In GraphQL, the alias is used to change the field name of the query. It facilitates you to rename the result of a field according to yourself.
For example:
{
classA : employee(id : String){
name
}
classB : employee(id: String){
name
}
}
In the above query, we have used an alias to use a different name for two 'employees.' Without alias, you will get an error in the result.
