type-graphql
Version:
Create GraphQL schema and resolvers with TypeScript, using classes and decorators!
82 lines (81 loc) • 5.13 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.wrapResolverWithAuthChecker = exports.createBasicFieldResolver = exports.createAdvancedFieldResolver = exports.createHandlerResolver = void 0;
const auth_middleware_1 = require("../helpers/auth-middleware");
const types_1 = require("../helpers/types");
const build_context_1 = require("../schema/build-context");
const isPromiseLike_1 = require("../utils/isPromiseLike");
const helpers_1 = require("./helpers");
function createHandlerResolver(resolverMetadata) {
const { validate: globalValidate, validateFn, authChecker, authMode, globalMiddlewares, container, } = build_context_1.BuildContext;
const middlewares = globalMiddlewares.concat(resolverMetadata.middlewares);
(0, helpers_1.applyAuthChecker)(middlewares, authChecker, container, authMode, resolverMetadata.roles);
return (root, args, context, info) => {
const resolverData = { root, args, context, info };
const targetInstanceOrPromise = container.getInstance(resolverMetadata.target, resolverData);
if ((0, isPromiseLike_1.isPromiseLike)(targetInstanceOrPromise)) {
return targetInstanceOrPromise.then(targetInstance => (0, helpers_1.applyMiddlewares)(container, resolverData, middlewares, () => {
const params = (0, helpers_1.getParams)(resolverMetadata.params, resolverData, globalValidate, validateFn);
if ((0, isPromiseLike_1.isPromiseLike)(params)) {
return params.then(resolvedParams => targetInstance[resolverMetadata.methodName].apply(targetInstance, resolvedParams));
}
return targetInstance[resolverMetadata.methodName].apply(targetInstance, params);
}));
}
return (0, helpers_1.applyMiddlewares)(container, resolverData, middlewares, () => {
const params = (0, helpers_1.getParams)(resolverMetadata.params, resolverData, globalValidate, validateFn);
const targetInstance = targetInstanceOrPromise;
if ((0, isPromiseLike_1.isPromiseLike)(params)) {
return params.then(resolvedParams => targetInstance[resolverMetadata.methodName].apply(targetInstance, resolvedParams));
}
return targetInstance[resolverMetadata.methodName].apply(targetInstance, params);
});
};
}
exports.createHandlerResolver = createHandlerResolver;
function createAdvancedFieldResolver(fieldResolverMetadata) {
if (fieldResolverMetadata.kind === "external") {
return createHandlerResolver(fieldResolverMetadata);
}
const targetType = fieldResolverMetadata.getObjectType();
const { validate: globalValidate, validateFn, authChecker, authMode, globalMiddlewares, container, } = build_context_1.BuildContext;
const middlewares = globalMiddlewares.concat(fieldResolverMetadata.middlewares);
(0, helpers_1.applyAuthChecker)(middlewares, authChecker, container, authMode, fieldResolverMetadata.roles);
return (root, args, context, info) => {
const resolverData = { root, args, context, info };
const targetInstance = (0, types_1.convertToType)(targetType, root);
return (0, helpers_1.applyMiddlewares)(container, resolverData, middlewares, () => {
const handlerOrGetterValue = targetInstance[fieldResolverMetadata.methodName];
if (typeof handlerOrGetterValue !== "function") {
return handlerOrGetterValue;
}
const params = (0, helpers_1.getParams)(fieldResolverMetadata.params, resolverData, globalValidate, validateFn);
if ((0, isPromiseLike_1.isPromiseLike)(params)) {
return params.then(resolvedParams => handlerOrGetterValue.apply(targetInstance, resolvedParams));
}
return handlerOrGetterValue.apply(targetInstance, params);
});
};
}
exports.createAdvancedFieldResolver = createAdvancedFieldResolver;
function createBasicFieldResolver(fieldMetadata) {
const { authChecker, authMode, globalMiddlewares, container } = build_context_1.BuildContext;
const middlewares = globalMiddlewares.concat(fieldMetadata.middlewares);
(0, helpers_1.applyAuthChecker)(middlewares, authChecker, container, authMode, fieldMetadata.roles);
return (root, args, context, info) => {
const resolverData = { root, args, context, info };
return (0, helpers_1.applyMiddlewares)(container, resolverData, middlewares, () => root[fieldMetadata.name]);
};
}
exports.createBasicFieldResolver = createBasicFieldResolver;
function wrapResolverWithAuthChecker(resolver, container, roles) {
const { authChecker, authMode } = build_context_1.BuildContext;
if (!authChecker || !roles) {
return resolver;
}
return (root, args, context, info) => {
const resolverData = { root, args, context, info };
return (0, auth_middleware_1.AuthMiddleware)(authChecker, container, authMode, roles)(resolverData, async () => resolver(root, args, context, info));
};
}
exports.wrapResolverWithAuthChecker = wrapResolverWithAuthChecker;