我必须使用Google Dataflow Process中的 const google = require('googleapis');
exports.goWithTheDataFlow = function(event, callback) {
const file = event.data;
if (file.resourceState === 'exists' && file.name) {
google.auth.getApplicationDefault(function (err, authClient, projectId) {
if (err) {
throw err;
}
if (authClient.createScopedRequired && authClient.createScopedRequired()) {
authClient = authClient.createScoped([
'https://www.googleapis.com/auth/cloud-platform',
'https://www.googleapis.com/auth/userinfo.email'
]);
}
const dataflow = google.dataflow({ version: 'v1b3', auth: authClient });
dataflow.projects.templates.create({
projectId: 'testing1-180111',
resource: {
parameters: {
},
jobName: 'cloud-fn-dataflow-test',
gcsPath: 'gs://kishan-configuration/templates/FinalConfigTable'
}
}, function(err, response) {
if (err) {
console.error("problem running dataflow template, error was: ", err);
}
console.log("Dataflow template response: ", response);
callback();
});
});
}
};
功能逐个触发多个模板。执行一个模板后，必须调用另一个模板。
package.json {
"name": "kishan_kumar464",
"version": "1.0.0",
"main": "index.js",
"dependencies": {
"google-cloud": "^0.56.0",
"googleapis": "^22.2.0"
},
"devDependencies": {},
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "Kishan",
"license": "ISC",
"description": ""
}
文件代码是这个
declare @Table table(ID int identity(1,1), patient_date date)
insert into @Table values
('10/5/2017'),
('6/6/2017'),
('6/10/2017'),
('8/7/2017'),
('9/19/2017')
select A.ID,
A.patient_date,
cast(B.patient_date as varchar(10)) + ' - ' + cast(A.patient_date as varchar(10)) as Period, --this column will show exactly what you asked
abs(datediff(day,B.patient_date, A.patient_date)) as DaysDifference --this column is computed absolute difference in days between to dates
from @Table A left join @Table B on A.ID = B.ID - 1
答案 0 :(得分：0)
如果我理解正确，您希望从模板创建作业并等到完成。之后，您可以从模板创建下一个作业。正确的吗？
我认为您可以在创建作业后轮询作业状态（作业ID在dataflow.projects.templates.create的响应中。
要检查作业的状态，请使用projects.jobs.get API。