@nestjs/graphql
Version:
Nest - modern, fast, powerful node.js web framework (@graphql)
35 lines (34 loc) • 1.3 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.decorateFieldResolverWithMiddleware = void 0;
function decorateFieldResolverWithMiddleware(originalResolveFnFactory, middlewareFunctions = []) {
return (root, args, context, info) => {
let index = -1;
const run = async (currentIndex) => {
if (currentIndex <= index) {
throw new Error('next() called multiple times');
}
index = currentIndex;
let middlewareFn;
if (currentIndex === middlewareFunctions.length) {
middlewareFn = originalResolveFnFactory(root, args, context, info);
}
else {
middlewareFn = middlewareFunctions[currentIndex];
}
let tempResult = undefined;
const result = await middlewareFn({
info,
args,
context,
source: root,
}, async () => {
tempResult = await run(currentIndex + 1);
return tempResult;
});
return result !== undefined ? result : tempResult;
};
return run(0);
};
}
exports.decorateFieldResolverWithMiddleware = decorateFieldResolverWithMiddleware;