error response

[bsr203]

As per the spec, https://facebook.github.io/graphql/#sec-Errors , error is indicated by a field errors of non empty list in the response.

so I was returning something like from my field resolver

return &graphql.Result{Errors: gqlerrors.FormatErrors(err)}

but that didn't work.

it does further validation and output the message

Locations: [{Line: 1, Column: 302}]
Message: "Cannot return null for non-nullable field GroupConnection.pageInfo."

my intention is to add more details to the error in the data field.

so, how can I return an error from Resolve method which passes to the client?

[sogko]

Currently there isn't a way to return a custom error from field resolvers.

This is being considered in #44, i.e. to allow user to return an error from Resolve function) #44 (comment)

For e.g.:

    helloResolve := func(p graphql.ResolveParams) (interface{}, error) {
        ...
        if err != nil {
            return nil, err
        }
        return "world", nil
    }

You're welcome to add to the discussion there to keep it going 👍🏻 (PRs are also welcomed :))

[bsr203]

closing so we track it at #44