@methodus/server
Version:
Server components for @methodus workflow
219 lines • 10.7 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.validateServerIsRunning = exports.handleResult = exports.verbBasedMethod = void 0;
const tslib_1 = require("tslib");
require("reflect-metadata");
const commons_1 = tslib_1.__importStar(require("@methodus/framework-decorators/commons"));
const response_1 = require("../response");
const serversList_1 = require("../servers/serversList");
const fast_safe_stringify_1 = tslib_1.__importDefault(require("fast-safe-stringify"));
const injection_1 = tslib_1.__importDefault(require("@methodus/framework-decorators/injection"));
const getClassOf = Function.prototype.call.bind(Object.prototype.toString);
const methodMetadataKey = 'methodus';
function verbBasedMethod(target, propertyKey, descriptor, verb, route, middlewares) {
target.methodus = target.methodus || {};
const name = target.name || target.constructor.name;
target.methodus[name] = target.methodus[name] || { _auth: {}, _events: {}, _descriptors: {} };
const mTarget = target.methodus[name];
const metaObject = Object.assign({}, { verb, route, propertyKey, middlewares, params: [] });
if (mTarget._descriptors[propertyKey]) {
Object.assign(metaObject, { params: mTarget._descriptors[propertyKey].params });
}
Reflect.defineMetadata(methodMetadataKey, metaObject, target, propertyKey);
mTarget._descriptors[propertyKey] = metaObject;
const paramsMap = metaObject.params;
paramsMap.sort((a, b) => {
return a.index - b.index;
});
const originalMethod = descriptor.value;
const value = function (...args) {
return tslib_1.__awaiter(this, void 0, void 0, function* () {
target = this;
validateServerIsRunning();
let configName = target.name;
if (!configName && target.constructor && target.constructor.name !== 'Object') {
configName = target.constructor.name;
}
let methodResult = null;
let methodus = mTarget;
if (!methodus) {
methodus = Reflect.getOwnMetadata(methodMetadataKey, target, propertyKey) || {};
}
let ParserResponse;
let parser;
let completeConfiguration;
let methodType = commons_1.MethodType.Local;
const config = serversList_1.Servers.classes[configName];
if (!config) {
const client = serversList_1.Servers.clients[configName];
const existingClassMetadata = injection_1.default.ClassContainer.get(configName);
if (client) {
Object.assign(methodus, methodus._descriptors[propertyKey], existingClassMetadata);
if (getClassOf(target) === '[object Object]') {
Object.assign(client, target);
if (target.credentials) {
methodus._auth.options = target.credentials;
}
}
methodus.resolver = client.resolver;
try {
const validationResult = yield commons_1.validate(args);
if (validationResult) {
throw new commons_1.MethodError(validationResult, 422);
}
if (client.transportType === commons_1.TransportType.Mock) {
if (methodus._mocks && methodus._mocks[propertyKey]) {
if (typeof methodus._mocks[propertyKey] === 'function') {
methodResult = yield methodus._mocks[propertyKey].apply(target, args);
}
else {
methodResult = methodus._mocks[propertyKey];
}
}
else {
methodResult = yield originalMethod.apply(target, args);
}
}
else {
methodResult = yield client.transportType.send.apply(target, [methodus, args, paramsMap]);
}
return handleResult(methodResult);
}
catch (ex) {
if (Buffer.isBuffer(ex.error)) {
ex.error = ex.error.toString();
ex.message = ex.error;
}
try {
ex.message = JSON.parse(ex.message).error;
}
catch (err) {
}
throw (ex);
}
}
else {
const result = yield originalMethod.apply(target, args);
return handleResult(result);
}
}
else {
const existingClassMetadata = injection_1.default.ClassContainer.get(methodus.name);
Object.assign(methodus, methodus._descriptors[propertyKey], existingClassMetadata);
const functionArgs = [];
completeConfiguration = Object.assign({}, methodus, config);
parser = new response_1.ResponseParser(completeConfiguration.serverType.name);
ParserResponse = parser.parse(args, paramsMap, functionArgs);
if (completeConfiguration && completeConfiguration.methodType) {
methodType = completeConfiguration.methodType;
}
if (completeConfiguration && completeConfiguration.transportType) {
methodType = completeConfiguration.transportType;
}
const restHeaders = null;
try {
const validationResult = yield commons_1.validate(ParserResponse.args);
if (validationResult) {
throw new commons_1.MethodError(validationResult, 422);
}
const mappedArgs = paramsMap.map((param) => {
return { [param.name || param.from]: ParserResponse.args[param.index] };
});
commons_1.default.logger.info('@Method::call', methodType, originalMethod.name, fast_safe_stringify_1.default(mappedArgs));
switch (methodType) {
case commons_1.MethodType.Mock:
if (methodus._mocks && methodus._mocks[propertyKey]) {
if (typeof methodus._mocks[propertyKey] === 'function') {
methodResult = methodus._mocks[propertyKey].apply(target, ParserResponse.args);
}
else {
methodResult = methodus._mocks[propertyKey];
}
}
else {
methodResult = yield originalMethod.apply(target, ParserResponse.args);
}
break;
case commons_1.MethodType.Local:
let instanceFromDI = target;
methodResult = yield originalMethod.apply(instanceFromDI, ParserResponse.args);
break;
}
}
catch (error) {
error.statusCode = error.statusCode || 500;
commons_1.default.logger.error(error);
if (ParserResponse.isRest) {
return parser.response(args, error, restHeaders);
}
else {
throw (error);
}
}
if (methodResult && ParserResponse.isRest) {
return parser.response(args, methodResult, methodResult.headers);
}
else {
return handleResult(methodResult);
}
}
});
};
descriptor.value = value;
return descriptor;
}
exports.verbBasedMethod = verbBasedMethod;
function handleResult(methodResult) {
return tslib_1.__awaiter(this, void 0, void 0, function* () {
if (methodResult !== null && methodResult !== undefined &&
methodResult.result !== null && methodResult.result !== undefined) {
try {
const requestResult = yield methodResult.result;
if (!requestResult) {
methodResult = {};
}
else {
if (Buffer.isBuffer(requestResult)) {
const bufferedResult = Buffer.from(requestResult).toString();
if (typeof bufferedResult === 'string') {
try {
methodResult = new commons_1.MethodResult(JSON.parse(bufferedResult));
}
catch (error) {
methodResult = bufferedResult;
}
}
}
else {
if (requestResult.result === undefined) {
methodResult = new commons_1.MethodResult(requestResult);
}
else {
methodResult = requestResult;
}
}
}
}
catch (error) {
error.statusCode = error.statusCode || 500;
if (error.error && Buffer.isBuffer(error.error)) {
error.error = Buffer.from(error.error).toString();
}
delete error.response;
delete error.options;
delete error.message;
commons_1.default.logger.error(error);
throw new commons_1.MethodResultStatus(error, error.statusCode);
}
}
return methodResult;
});
}
exports.handleResult = handleResult;
function validateServerIsRunning() {
if (!serversList_1.Servers) {
throw (new Error(`methodus server is not running, did you miss a 'run' statement?`));
}
}
exports.validateServerIsRunning = validateServerIsRunning;
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