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SYS_MessageBus.pullAsync() method

Private message bus: pull a message (Promise version)

Signature

function pullAsync(topic: string): Promise<any>;

Parameters

Parameter	Type	Description
topic	string	Theme

Returns

Promise<any>

The pulled message

Remarks

Only one message can be pulled at a time. You can use await to wait for the message to be pulled

Example

// 1. 先发起拉取（Promise 挂起等待消息）
const pending = eda.sys_MessageBus.pullAsync('嘉立创示例_异步拉取');

// 2. 推送消息，挂起的 Promise 随即满足
eda.sys_MessageBus.push('嘉立创示例_异步拉取', { task: '导出 BOM', done: true });

// 3. await 直接拿到拉到的消息
const message = await pending;
console.log('拉到的消息：', message);