GraphQL - 是否可以设置一个带有突变结果的变量

Question

I want to do 2 creations in my GraphQL query. (I know my query structure is not correct, but it's to illustrate my question)

mutation {
    affiliateCreate(company: "test mutation") {
    $id: id,
    affiliateUserCreate(affiliate_id: $id, name: "test name") {
      id, 
      name
    },
    company
  }
}

I want my first id result to be in variable who i pass to the second creation call? I'm very new to GraphQL and i was wondering if it's possible.

Is there any other way possible to do such thing? Or i must do 2 mutation call? The first with affiliateCreate and in it's fallback the second one?

Thank you

Answer 1

What you want to do is not supported by GraphQL. In the Graphcool APIs we approach this kind of situation with what we call nested mutations . I've also heard it being referred to as complex mutations .

A nested create mutation is characterized by a nested input object argument . If you add an input object author to the affiliateCreate mutation, you could use it like that:

mutation createAffiliateAndUser {
  affiliateCreate(
    company: "test company"
    author: {
      name: "test user"
    }
  ) {
    id
  }
}

This would create an affiliate, a user and then link the two together. Similarily, if you add an input object affiliates to the userCreate mutation, it could look like this:

mutation createUserAndAffiliates {
  userCreate(
    name: "test user"
    affiliates: [{
      company: "first company"
    }, {
      company: "second company"
    }]
  ) {
    id
  }
}