Tools

Strawberry provides some utility functions to help you build your GraphQL server. All tools can be imported from strawberry.tools


create_type

Create a Strawberry type from a list of fields.

def create_type(
name: str,
fields: List[StrawberryField],
is_input: bool = False,
is_interface: bool = False,
description: Optional[str] = None,
directives: Optional[Sequence[object]] = (),
extend: bool = False,
) -> Type: ...

Example:

import strawberry
from strawberry.tools import create_type
@strawberry.field
def hello(info) -> str:
return "World"
def get_name(info) -> str:
return info.context.user.name
my_name = strawberry.field(name="myName", resolver=get_name)
Query = create_type("Query", [hello, my_name])
schema = strawberry.Schema(query=Query)
type Query {
hello: String!
myName: String!
}

merge_types

Merge multiple Strawberry types into one. Example:

import strawberry
from strawberry.tools import merge_types
@strawberry.type
class QueryA:
@strawberry.field
def perform_a(self) -> str: ...
@strawberry.type
class QueryB:
@strawberry.field
def perform_b(self) -> str: ...
ComboQuery = merge_types("ComboQuery", (QueryB, QueryA))
type ComboQuery {
performB: String!
performA: String!
}