我尝试从云函数发送命令,但出现错误:该服务当前不可用。
Package.JSON “依赖关系”:{ “ firebase-admin”:“〜6.0.0”, “ firebase-functions”:“ ^ 2.0.3”, “ googleapis”:“ 34.0.0” }
const parentName = `projects/${projectId}/locations/${cloudRegion}`;
const registryName = `${parentName}/registries/${reqData.registryId}`;
const binaryData = Buffer.from(JSON.stringify(reqData.message)).toString('base64');
const request = {
name: `${registryName}/devices/${reqData.deviceId}`,
binaryData: binaryData
};
google.auth.getClient().then((authClient) => {
const discoveryUrl =
`${DISCOVERY_API}?version=${API_VERSION}`;
if (authClient.createScopedRequired && authClient.createScopedRequired()) {
// Scopes can be specified either as an array or as a single,
// space-delimited string.
authClient = authClient.createScoped([
'https://www.googleapis.com/auth/cloud-platform'
]);
}
google.options({
auth: authClient
});
google.discoverAPI(discoveryUrl).then((client, err) => {
if (err) {
console.log('Error during API discovery', err);
return undefined;
}
client.projects.locations.registries.devices.sendCommandToDevice(request,
(err, data) => {
if (err) {
console.log('Could not send command:', request);
console.log('Message: ', err);
} else {
console.log('Success :', data.statusText);
}
});
});
});
日志: {错误:该服务当前不可用。在结算时(/user_code/node_modules/googleapis/node_modules/axios/lib/core/settle.js:18)在createError(/user_code/node_modules/googleapis/node_modules/axios/lib/core/createError.js:16:15)处: 12)位于Unzip.handleStreamEnd(/user_code/node_modules/googleapis/node_modules/axios/lib/adapters/http.js:201:11)位于Unzip.emit(events.js:91:20)(events.js: 185:7)位于process._tickDomainCallback(内部/process/next_tick.js:128:9)的_combinedTickCallback(内部/进程/next_tick.js:80:11)的endReadableNT(_stream_read.js:974:12)
答案 0 :(得分:2)
问题是必须指定subfolder
必须,并且必须不能为空字符串。
就像我在Firebase函数中使用它一样,我只对所有没有特定子文件夹的命令使用firebase
子文件夹
const request = {
name: `${registryName}/devices/${deviceId}`,
binaryData: Buffer.from(JSON.stringify(commandMessage)).toString("base64"),
subfolder: 'firebase'
}
这里的功能取决于:
"dependencies": {
"firebase-admin": "^6.4.0",
"firebase-functions": "^2.1.0",
"fs-extra": "^7.0.0",
"googleapis": "^36.0.0",
},
这可能是由于
似乎Google的“ IoT”还很年轻,需要大量工作
答案 1 :(得分:1)
我对Firebase云功能不太熟悉,但是使用Cloud Functions(https://console.cloud.google.com/functions)的内联编辑器却没有收到错误消息。您能告诉我何时开始出现此错误(如果仍然遇到此错误)吗?
作为参考,这是我使用的代码(基本上是您所使用的代码,但具有.join()
的更明确的定义。
projectId, cloudRegion