CODEWITHSUNDEEP
javascriptnode.jsmongodbmongoosegraphql
Kinara Nyakaru
Kinara Nyakaru

Reputation: 501

Graphql query is only resolving _id field, the other fields are null

My GraphQL query is resolving docID and docTitle to null. Though the data is being retrieved from the DB. Only the _id field is being returned. When I console log I can see the data.

GraphQL query

query{
  docs{
    docId
    docTitle
    _id
  }
}

My resolver

const getDocs = async (_parent, _args, context, _info) => {
    const docs = await context.app.models.docs.find()
    return docs
}

Docs schema

type Docs {
    _id: ID!
    docId: String
    docTitle: String
}

On the GraphQL playground, this is what I get

{
  "data": {
    "getDocs": [
      {
        "docId": null,
        "docTitle": null,
        "_id": "5e7c9007f4c3"
      }
    ]
  }
}

But when I console log I am able to see data for all the fields

[
  {
    _id: 5e7c9007f4c3,
    docId: 'c18c-57e4b5134cbe',
    docTitle: 'cloud',
    __v: 0
  }
]

What am I missing please?

Upvotes: 1

Views: 538

Answers (2)

Kinara Nyakaru
Kinara Nyakaru

Reputation: 501

Using the aggregate parameter also resolved the query correctly

const getDocs = async (_parent, _args, context, _info) => {
return await context.app.models.docs.aggregate([
    {
        $project: { docId:1, docTitle:1 },
    },
])}

Upvotes: 0

Tunmise Ogunniyi
Tunmise Ogunniyi

Reputation: 2573

I'm guessing the types of docId and docTitle returned from the DB are not explicitly strings, consequently, some type checking is happening somewhere that causes their values to be stripped out of the output docs object. Try adding the lean option to the query so that each document in the query result is transformed into a javascript object, that should help ensure the values docId and docTitle are cast down to strings.

Update your DB query to something like this:

await context.app.models.docs.find({}, {}, { lean: true })

Upvotes: 2

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