39 lines
1.0 KiB
JavaScript
39 lines
1.0 KiB
JavaScript
import { GraphQLError } from "../error/GraphQLError.mjs";
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/**
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* Extracts the root type of the operation from the schema.
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*/
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export function getOperationRootType(schema, operation) {
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if (operation.operation === 'query') {
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var queryType = schema.getQueryType();
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if (!queryType) {
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throw new GraphQLError('Schema does not define the required query root type.', operation);
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}
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return queryType;
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}
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if (operation.operation === 'mutation') {
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var mutationType = schema.getMutationType();
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if (!mutationType) {
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throw new GraphQLError('Schema is not configured for mutations.', operation);
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}
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return mutationType;
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}
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if (operation.operation === 'subscription') {
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var subscriptionType = schema.getSubscriptionType();
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if (!subscriptionType) {
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throw new GraphQLError('Schema is not configured for subscriptions.', operation);
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}
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return subscriptionType;
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}
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throw new GraphQLError('Can only have query, mutation and subscription operations.', operation);
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}
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