Show where parsing error occurred

[isubasinghe]

I am trying to convert the following code into golang, we have an existing firebase app but we are attempting to convert it into faunadb. I have more complex authentication requirements and therefore cannot use faunadb's built-in system. My solution is to write a go Lamba function that can handle login/sign up functionality.

Create(
  Tokens(), {
    instance: Select("ref", Get(Match(Index('users_by_email'), "alice@site.example")))
  }
)

func loginUser(email string) {
	expr := fauna.Create(fauna.Tokens(), fauna.Select("ref",
		fauna.Get(
			fauna.MatchTerm(fauna.Index("users_by_email"), email),
		),
	))
	value, err := client.Query(expr)
	if err != nil {
		fmt.Println(err)
	} else {
		fmt.Println(value)
	}
}

I'm very new to faunadb, I get this error when running the above code snippet.
Response error 400. Errors: [params](invalid argument): Object expected, Ref provided.

This isn't the best to help debug, what would be more helpful is to return a FQL string with the error section highlighted in red.
Would this be a feature you can implement?

P.S.

Would appreciate any help with the above issue

[trevorsibanda]

Hi @isubasinghe
You seem to have missed the object. Try changing it to:

expr := fauna.Create(fauna.Tokens(), fauna.Obj{"instance: fauna.Select("ref",
		fauna.Get(
			fauna.MatchTerm(fauna.Index("users_by_email"), email),
		),
	)})

On showing the position of errors occured, we have a ticket on this (DRV-96) and will be rolling this out with other related features/fixes.

[isubasinghe]

Cool thanks for that :)