How to work with relationships in Absinthe, Ecto and Dataloader?

Phoenix Forum Questions / Help
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1

How to work with relationships in Absinthe, Ecto and Dataloader? Below is the link of the repo. The code does not seem to work. It gives association errors. Thoughts?

2

Hi @inblack67 can you point to specific code that doesn’t work, or include the error message?

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3

I have been looking for documentation on this subject. For example, how would one go about using dataloader for the following model structure (i.e. has_many through):

  schema "people" do
    field :email, :string
    field :first_name, :string
    field :last_name, :string
    field :username, :string

    has_many :friendships, Friendship
    has_many :friends, through: [:friendships, :friend]

    timestamps()
  end

  schema "friendships" do
    belongs_to :person, Person
    belongs_to :friend, Person

    timestamps()
  end
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4

Can your show the corresponding graphql schema? What have you tried so far?

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5

@benwilson512 You can find the corresponding GraphQL schema here:

6

I was able to resolve my issue after reading the finer points within the Absinthe GraphQL documentation. My issue was that I wasn’t defining the context function within schema.ex file.

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