@theguild/federation-composition
Version:
Open Source Composition library for Apollo Federation
49 lines (48 loc) • 2.15 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ShareableRules = ShareableRules;
const graphql_1 = require("graphql");
const helpers_js_1 = require("../../../helpers.js");
function ShareableRules(context) {
return {
DirectiveDefinition(node) {
(0, helpers_js_1.validateDirectiveAgainstOriginal)(node, 'shareable', context);
},
Directive(node) {
if (!context.isAvailableFederationDirective('shareable', node)) {
return;
}
const typeDef = context.typeNodeInfo.getTypeDef();
const fieldDef = context.typeNodeInfo.getFieldDef();
if (!typeDef) {
return;
}
if ((typeDef.kind === graphql_1.Kind.OBJECT_TYPE_DEFINITION ||
typeDef.kind === graphql_1.Kind.OBJECT_TYPE_EXTENSION) &&
!context.stateBuilder.isInterfaceObject(typeDef.name.value)) {
if (fieldDef) {
context.stateBuilder.objectType.field.setShareable(typeDef.name.value, fieldDef.name.value);
}
else {
context.stateBuilder.objectType.setShareable(typeDef.name.value);
if (typeDef.fields) {
for (const fieldDef of typeDef.fields) {
context.stateBuilder.objectType.field.setShareable(typeDef.name.value, fieldDef.name.value);
}
}
}
}
if (!fieldDef) {
return;
}
if (typeDef.kind === graphql_1.Kind.INTERFACE_TYPE_DEFINITION ||
typeDef.kind === graphql_1.Kind.INTERFACE_TYPE_EXTENSION) {
context.reportError(new graphql_1.GraphQLError(`Invalid use of @shareable on field "${typeDef.name.value}.${fieldDef.name.value}": only object type fields can be marked with @shareable`, {
nodes: node,
extensions: { code: 'INVALID_SHAREABLE_USAGE' },
}));
return;
}
},
};
}