32 lines
1.2 KiB
JavaScript
32 lines
1.2 KiB
JavaScript
export function extendResolversFromInterfaces(schema, resolvers) {
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const extendedResolvers = {};
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const typeMap = schema.getTypeMap();
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for (const typeName in typeMap) {
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const type = typeMap[typeName];
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if ('getInterfaces' in type) {
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extendedResolvers[typeName] = {};
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for (const iFace of type.getInterfaces()) {
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if (resolvers[iFace.name]) {
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for (const fieldName in resolvers[iFace.name]) {
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if (fieldName === '__isTypeOf' || !fieldName.startsWith('__')) {
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extendedResolvers[typeName][fieldName] = resolvers[iFace.name][fieldName];
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}
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}
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}
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}
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const typeResolvers = resolvers[typeName];
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extendedResolvers[typeName] = {
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...extendedResolvers[typeName],
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...typeResolvers,
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};
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}
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else {
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const typeResolvers = resolvers[typeName];
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if (typeResolvers != null) {
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extendedResolvers[typeName] = typeResolvers;
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}
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}
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}
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return extendedResolvers;
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}
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