我正在尝试创建一个自定义源插件,并尝试使用addThirdPartySchema
方法,我在下面的这个简单示例中尝试过,但是收到此错误:
Error: Cannot create as TypeComposer the following value: Test.
import * as graphql from "graphql";
import { SourceNodesArgs } from "gatsby";
export const sourceNodes = function sourceNodes(args: SourceNodesArgs) {
const { addThirdPartySchema } = args.actions;
const schema = new graphql.GraphQLSchema({
query: new graphql.GraphQLObjectType({
name: "Test",
fields: {
test: {
type: graphql.GraphQLString,
resolve: () => "hello",
},
},
}),
});
addThirdPartySchema({
schema,
});
};
答案 0 :(得分:2)
在我发表评论之前,我在本地运行您的代码,并可以确认错误由graphql@^15
引发。
降级为graphql@14.6.0
(与Gatsby的graphql版本相同)解决了该问题。