@theguild/federation-composition
Version:
Open Source Composition library for Apollo Federation
52 lines (51 loc) • 2.62 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ComposeDirectiveRules = ComposeDirectiveRules;
const graphql_1 = require("graphql");
const helpers_js_1 = require("../../../helpers.js");
function ComposeDirectiveRules(context) {
return {
DirectiveDefinition(node) {
(0, helpers_js_1.validateDirectiveAgainstOriginal)(node, 'composeDirective', context);
},
Directive(node) {
if (!context.isAvailableFederationDirective('composeDirective', node)) {
return;
}
if (!context.satisfiesVersionRange('>= v2.1')) {
return;
}
const nameArg = node.arguments?.find(arg => arg.name.value === 'name');
if (!nameArg || nameArg.value.kind !== graphql_1.Kind.STRING) {
return;
}
const name = nameArg.value.value.replace(/^@/, '');
const definedDirectives = context.getDocument().definitions.filter(helpers_js_1.isDirectiveDefinitionNode);
const matchingDirective = definedDirectives.find(directive => directive.name.value === name);
if (matchingDirective) {
const hasSpec = context.stateBuilder.state.links.some(link => link.imports.some(im => im.kind === 'directive' &&
(im.alias ? im.alias.replace(/^@/, '') === name : im.name.replace(/^@/, '') === name)));
if (!hasSpec) {
context.reportError(new graphql_1.GraphQLError(`Directive "@${name}" in subgraph "${context.getSubgraphName()}" cannot be composed because it is not a member of a core feature`, {
extensions: {
code: 'DIRECTIVE_COMPOSITION_ERROR',
subgraphName: context.getSubgraphName(),
},
}));
return;
}
context.stateBuilder.directive.setComposed(matchingDirective.name.value);
context.stateBuilder.composedDirectives.add(matchingDirective.name.value);
}
else {
context.reportError(new graphql_1.GraphQLError(`Could not find matching directive definition for argument to @composeDirective "@${name}" in subgraph "${context.getSubgraphName()}".`, {
nodes: node,
extensions: {
code: 'DIRECTIVE_COMPOSITION_ERROR',
subgraphName: context.getSubgraphName(),
},
}));
}
},
};
}