@envelop/apollo-federation
Version:
This plugin integrates Apollo Federation Gateway into Envelop.
38 lines (37 loc) • 1.3 kB
JavaScript
;
// Taken from https://github.com/apollographql/apollo-server/blob/main/packages/apollo-server-core/src/cachePolicy.ts
Object.defineProperty(exports, "__esModule", { value: true });
exports.newCachePolicy = newCachePolicy;
var CacheScope;
(function (CacheScope) {
CacheScope["Public"] = "PUBLIC";
CacheScope["Private"] = "PRIVATE";
})(CacheScope || (CacheScope = {}));
function newCachePolicy() {
return {
maxAge: undefined,
scope: undefined,
restrict(hint) {
if (hint.maxAge !== undefined && (this.maxAge === undefined || hint.maxAge < this.maxAge)) {
this.maxAge = hint.maxAge;
}
if (hint.scope !== undefined && this.scope !== CacheScope.Private) {
this.scope = hint.scope;
}
},
replace(hint) {
if (hint.maxAge !== undefined) {
this.maxAge = hint.maxAge;
}
if (hint.scope !== undefined) {
this.scope = hint.scope;
}
},
policyIfCacheable() {
if (this.maxAge === undefined || this.maxAge === 0) {
return null;
}
return { maxAge: this.maxAge, scope: this.scope ?? CacheScope.Public };
},
};
}