How apollo-server suggestions works?

[nikitastupin]

Following document returns following suggestions:

mutation { setNameFor }

Cannot query field \"setNameFor\" on type \"Mutation\". Did you mean \"setNameForHome\", \"setNameForCamera\", or \"setNameForHomeSensor\"?

However similar document returns less suggestions:

mutation { setName }

Cannot query field \"setName\" on type \"Mutation\". Did you mean \"setNameForHome\"?

If we would know the algorithm apollo-server uses for suggestion generation we'd potentially speed up guessing of fields, arguments and so on.

[nikitastupin]

It looks like suggestions implemented in underlying graphql-js library. The actual algorithm implemented in suggestionList() function.