GraphQL query giving me a a "Cannot return null" error when I know data is in the database

Asked Jun 05 '20 at 17:11

Active Jun 05 '20 at 17:45

Viewed 18 times

Here's the data:

Here's my code.

const { idArg, queryType, stringArg } = require('@nexus/schema')
const { getUserId } = require('../utils')

const Query = queryType({
  definition(t) {
    t.field('users', {
      type: 'User',
      resolve: (parent, args, ctx) => {
        return ctx.prisma.user.findMany()
      },
    })

module.exports = {
  Query,
}

I know the database has users in the table, but here's what I get when I run the following query in playground.

query {
  users{
    id
  }
}

{
  "data": null,
  "errors": [
    {
      "message": "Cannot return null for non-nullable field User.id.",
      "locations": [
        {
          "line": 3,
          "column": 5
        }
      ],
      "path": [
        "users",
        "id"
      ]
    }
  ]
}

Thank you in advance for any help!

edited Jun 05 '20 at 17:45

asked Jun 05 '20 at 17:11

Darkmatter5

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user records without id field? – xadm Jun 05 '20 at 17:19
Nope, I just added a screenshot of the data. – Darkmatter5 Jun 05 '20 at 17:45
The type of your field is an object, not a list, but your resolver returns an array. There is no `id` property on the returned array, so GraphQL returns an error. You need to either change the type of your field to a list or return a single object inside your resolver. – Daniel Rearden Jun 05 '20 at 18:04
To make a field a list in Nexus, you use `t.list.field` instead of `t.field` – Daniel Rearden Jun 05 '20 at 18:08

GraphQL query giving me a a "Cannot return null" error when I know data is in the database

0 Answers0