import { type CallToolResult } from "@modelcontextprotocol/sdk/types.js";
import { buildClientSchema, getIntrospectionQuery, printSchema } from "graphql";
import { type IntrospectionQuery } from "graphql";
import { type Config } from "@/config.js";
export async function introspection(conf: Config, schemaName: string): Promise<CallToolResult> {
const url = `${conf.graphQL.endpoint}/${schemaName}?sc_apikey=${conf.graphQL.apiKey}`;
const response = await fetch(url, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
...conf.graphQL.headers,
},
body: JSON.stringify({
query: getIntrospectionQuery(),
}),
});
if (!response.ok) {
throw new Error(`GraphQL request failed: ${response.statusText}`);
}
const responseJson = await response.json() as unknown as { data: IntrospectionQuery };
// Transform to a schema object
const schema = buildClientSchema(responseJson.data);
// Print the schema SDL
return {
content: [
{
type: "text",
text: printSchema(schema),
},
],
isError: false,
}
}
