Absinthe (absinthe v1.6.0) View Source

Documentation for the Absinthe package, a toolkit for building GraphQL APIs with Elixir.

For usage information, see the documentation, which includes guides, API information for important modules, and links to useful resources.

Link to this section Summary

Functions

Evaluates a query document against a schema, with options.

Evaluates a query document against a schema, without options.

Link to this section Types

Specs

result_error_t() ::
  %{message: String.t()}
  | %{
      message: String.t(),
      locations: [%{line: pos_integer(), column: integer()}]
    }

Specs

result_selection_t() :: %{
  required(String.t()) =>
    nil
    | integer()
    | float()
    | boolean()
    | binary()
    | atom()
    | result_selection_t()
    | [result_selection_t()]
}

Specs

result_t() ::
  %{data: nil | result_selection_t()}
  | %{data: nil | result_selection_t(), errors: [result_error_t()]}
  | %{errors: [result_error_t()]}

Specs

run_opts() :: [
  context: %{},
  adapter: Absinthe.Adapter.t(),
  root_value: term(),
  operation_name: String.t(),
  analyze_complexity: boolean(),
  variables: %{optional(String.t()) => any()},
  max_complexity: non_neg_integer() | :infinity
]

Specs

run_result() :: {:ok, result_t()} | {:error, String.t()}

Link to this section Functions

Link to this function

run(document, schema, options \\ [])

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Specs

run(
  binary() | Absinthe.Language.Source.t() | Absinthe.Language.Document.t(),
  Absinthe.Schema.t(),
  run_opts()
) :: run_result()

Evaluates a query document against a schema, with options.

Options

  • :adapter - The name of the adapter to use. See the Absinthe.Adapter behaviour and the Absinthe.Adapter.Passthrough and Absinthe.Adapter.LanguageConventions modules that implement it. (Absinthe.Adapter.LanguageConventions is the default value for this option.)
  • :operation_name - If more than one operation is present in the provided query document, this must be provided to select which operation to execute.
  • :variables - A map of provided variable values to be used when filling in arguments in the provided query document.
  • :context -> A map of the execution context.
  • :root_value -> A root value to use as the source for toplevel fields.
  • :analyze_complexity -> Whether to analyze the complexity before executing an operation.
  • :max_complexity -> An integer (or :infinity) for the maximum allowed complexity for the operation being executed.

Examples

"""
query GetItemById($id: ID) {
  item(id: $id) {
    name
  }
}
"""
|> Absinthe.run(App.Schema, variables: %{"id" => params[:item_id]})

See the Absinthe module documentation for more examples.

Link to this function

run!(input, schema, options \\ [])

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Specs

run!(
  binary() | Absinthe.Language.Source.t() | Absinthe.Language.Document.t(),
  Absinthe.Schema.t(),
  Keyword.t()
) :: result_t() | no_return()

Evaluates a query document against a schema, without options.

Options

See run/3 for the available options.