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.

python

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:

python

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)

graphql

type Query {
  hello: String!
  myName: String!
}

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`merge_types`

Merge multiple Strawberry types into one. Example:

python

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))

graphql

type ComboQuery {
  performB: String!
  performA: String!
}

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