@methodus/server
Version:
Server components for @methodus workflow
210 lines • 9.55 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
require("reflect-metadata");
const class_container_1 = require("../class-container");
const log_1 = require("../log");
const response_1 = require("../response");
const rest_1 = require("../rest");
const serversList_1 = require("../servers/serversList");
const methodMetadataKey = 'methodus';
function Method(verb, route, middlewares) {
return (target, propertyKey, descriptor) => {
target.methodus = target.methodus || {};
const name = target.name || target.constructor.name;
target.methodus[name] = target.methodus[name] || { _events: {}, _descriptors: {} };
let mTarget = target.methodus[name];
let metaObject = Object.assign({}, { verb, route, propertyKey, middlewares, params: [] });
if (mTarget._descriptors[propertyKey]) {
metaObject = Object.assign(metaObject, { params: mTarget._descriptors[propertyKey].params });
}
Reflect.defineMetadata(methodMetadataKey, metaObject, target, propertyKey);
mTarget._descriptors[propertyKey] = metaObject;
let paramsMap = metaObject.params;
paramsMap.sort((a, b) => {
return a.index - b.index;
});
const originalMethod = descriptor.value;
const value = async function (...args) {
if (args && args[args.length - 1] && args[args.length - 1].instruct) {
mTarget = args[args.length - 1].target;
target = mTarget;
metaObject = mTarget._descriptors[propertyKey];
paramsMap = metaObject.params;
paramsMap.sort((a, b) => {
return a.index - b.index;
});
}
validateServerIsRunning();
let configName = name;
if (!configName && target.constructor) {
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 = "Local";
const config = serversList_1.Servers.classes[configName];
if (!config) {
const client = serversList_1.Servers.clients[configName];
const existingClassMetadata = class_container_1.ClassContainer.get(configName);
if (client) {
Object.assign(methodus, methodus._descriptors[propertyKey], existingClassMetadata);
methodus.resolver = client.resolver;
try {
if (client.transportType === "Mock") {
if (methodus._mocks && methodus._mocks[propertyKey]) {
if (typeof methodus._mocks[propertyKey] === 'function') {
methodResult = await methodus._mocks[propertyKey].apply(target, args);
}
else {
methodResult = methodus._mocks[propertyKey];
}
}
else {
methodResult = await originalMethod.apply(target, args);
}
}
else {
const result = await client.transportType.send(methodus, args, paramsMap);
methodResult = new response_1.MethodResult(result);
}
return handleResult(methodResult);
}
catch (ex) {
if (Buffer.isBuffer(ex.error)) {
ex.error = ex.error.toString();
throw (ex);
}
}
}
else {
const result = await originalMethod.apply(this, args);
return handleResult(result);
}
}
else {
const existingClassMetadata = class_container_1.ClassContainer.get(methodus.name);
Object.assign(methodus, methodus._descriptors[propertyKey], existingClassMetadata);
const functionArgs = [];
parser = new rest_1.RestParser(methodus.serverType);
ParserResponse = parser.parse(args, paramsMap, functionArgs);
completeConfiguration = Object.assign({}, methodus, config);
if (completeConfiguration && completeConfiguration.methodType) {
methodType = completeConfiguration.methodType;
}
if (completeConfiguration && completeConfiguration.transportType) {
methodType = completeConfiguration.transportType;
}
const restHeaders = null;
try {
const mappedArgs = paramsMap.map((param) => {
return { [param.name || param.from]: ParserResponse.args[param.index] };
});
log_1.logger.info('@Method::call', methodType, originalMethod.name, ...mappedArgs);
switch (methodType) {
case "Mock":
if (methodus._mocks && methodus._mocks[propertyKey]) {
if (typeof methodus._mocks[propertyKey] === 'function') {
methodResult = new response_1.MethodResult(methodus._mocks[propertyKey](...ParserResponse.args));
}
else {
methodResult = new response_1.MethodResult(methodus._mocks[propertyKey]);
}
}
else {
methodResult = await originalMethod.apply(target, ParserResponse.args);
}
break;
case "Local":
methodResult = await originalMethod.apply(this, ParserResponse.args);
break;
}
}
catch (error) {
error.statusCode = error.statusCode || 500;
log_1.logger.error(error);
if (ParserResponse.isRest) {
return new parser.response(args, error, restHeaders);
}
else {
throw (error);
}
}
if (methodResult && ParserResponse.isRest) {
return new parser.response(args, methodResult, methodResult.headers);
}
else {
return handleResult(methodResult);
}
}
};
delete descriptor.value;
delete descriptor.writable;
descriptor.get = function () {
Object.defineProperty(this, propertyKey, {
enumerable: descriptor.enumerable,
configurable: descriptor.configurable,
value() {
return value.apply(this, arguments);
},
});
};
return descriptor;
};
}
exports.Method = Method;
async function handleResult(methodResult) {
if (methodResult !== null && methodResult !== undefined &&
methodResult.result !== null && methodResult.result !== undefined) {
try {
const requestResult = await methodResult.result;
if (!requestResult) {
methodResult = {};
}
else {
if (Buffer.isBuffer(requestResult)) {
const bufferedResult = Buffer.from(requestResult).toString();
if (typeof bufferedResult === 'string') {
try {
methodResult = new response_1.MethodResult(JSON.parse(bufferedResult));
}
catch (error) {
methodResult = bufferedResult;
}
}
}
else {
if (requestResult.result === undefined) {
methodResult = new response_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;
log_1.logger.error(error);
throw new response_1.MethodResultStatus(error, error.statusCode);
}
}
return methodResult;
}
function validateServerIsRunning() {
if (!serversList_1.Servers) {
throw (new Error(`methodus server is not running, did you miss a 'run' statement?`));
}
}
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