【发布时间】：2019-07-23 09:36:29
【问题描述】：
我正在尝试创建自定义环回 (3.25.1) 连接器
我不需要使用外部模块创建连接器，这是一个非常简单的连接器，它正在建立 rabbitmq 连接。
我在项目根目录的connectors/rabbitmq.js 中有一个文件
rabbitmq.js的内容是
const Connector = require('loopback-connector').Connector;
/**
* Initialize the connector against the given data source
*
* @param {DataSource} dataSource The loopback-datasource-juggler dataSource
* @param {Function} [callback] The callback function
*/
exports.initialize = function initializeDataSource(dataSource, callback) {
dataSource.connector = new RabbitMQ(dataSource.settings);
};
function RabbitMQ(settings) {
// Call the super constructor with name and settings
Connector.call(this, 'rabbitmq', settings);
//...
}
RabbitMQ.prototype.connect = function (cb) {
// ...
};
RabbitMQ.prototype.disconnect = function (cb) {
// ...
};
开始我的项目我收到以下错误消息
WARNING: LoopBack connector "rabbitmq" is not installed as any of the following modules:
./connectors/rabbitmq
loopback-connector-rabbitmq
rabbitmq
To fix, run:
npm install rabbitmq --save
/usr/src/app/node_modules/loopback/lib/application.js:280
throw err;
^
Error: Cannot create data source "rabbitmq":
WARNING: LoopBack connector "rabbitmq" is not installed as any of the following modules:
./connectors/rabbitmq
loopback-connector-rabbitmq
rabbitmq
To fix, run:
npm install rabbitmq --save
at DataSource.setup (/usr/src/app/node_modules/loopback-datasource-juggler/lib/datasource.js:448:26)
at new DataSource (/usr/src/app/node_modules/loopback-datasource-juggler/lib/datasource.js:138:8)
at Registry.createDataSource (/usr/src/app/node_modules/loopback/lib/registry.js:364:12)
at dataSourcesFromConfig (/usr/src/app/node_modules/loopback/lib/application.js:570:19)
at Function.app.dataSource (/usr/src/app/node_modules/loopback/lib/application.js:269:14)
at /usr/src/app/node_modules/loopback-boot/lib/executor.js:191:9
at /usr/src/app/node_modules/loopback-boot/lib/executor.js:282:5
at Array.forEach (<anonymous>)
at forEachKeyedObject (/usr/src/app/node_modules/loopback-boot/lib/executor.js:281:20)
at setupDataSources (/usr/src/app/node_modules/loopback-boot/lib/executor.js:181:3)
at execute (/usr/src/app/node_modules/loopback-boot/lib/executor.js:39:3)
at bootLoopBackApp (/usr/src/app/node_modules/loopback-boot/index.js:154:3)
at Object.<anonymous> (/usr/src/app/server/server.js:63:1)
at Module._compile (internal/modules/cjs/loader.js:776:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
Emitted 'error' event at:
at DataSource.setup (/usr/src/app/node_modules/loopback-datasource-juggler/lib/datasource.js:448:12)
at new DataSource (/usr/src/app/node_modules/loopback-datasource-juggler/lib/datasource.js:138:8)
[... lines matching original stack trace ...]
at Module.load (internal/modules/cjs/loader.js:653:32)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! service-rest@1.0.0 fixtures: `node bin/fixtures/index.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the service-rest@1.0.0 fixtures script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! /root/.npm/_logs/2019-07-23T09_31_48_754Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! service-rest@1.0.0 launch: `npm run fixtures && npm start`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the service-rest@1.0.0 launch script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! /root/.npm/_logs/2019-07-23T09_31_48_808Z-debug.log
我的文件在./connectors/rabbitmq，我尝试了以下路径，但总是遇到同样的问题
connectors/rabbitmq.js
connectors/rabbitmq/index.js
server/connectors/rabbitmq.js
server/connectors/rabbitmq/index.js
我也试过添加
app.connector('rabbitmq', require('../connectors/rabbitmq')) 在 var app = module.exports = loopback(); 之后 server/server.js 但我有同样的问题
【问题讨论】：
标签： node.js rabbitmq loopbackjs