how to switch to user account to access bigquery - google-bigquery

Question

all.need your help there~
In GCP vm instance, i use nodejs write code,try to access dataset, I want use email account, and try this way to set account:
//in linux run commond to set the account
var exec = require('child_process').exec;
var cmdStr = 'gcloud config set account email#mmm.com';
exec(cmdStr, function (err, stdout, srderr) {
if(err) {
console.log(err);
} else {
console.log(out);
}
});
and when I run it, it uses a service account to access a big query.
Anyone can help me to switch the account from the service account to an email account?

Answer 1

Running ‘gcloud config set account email#mmm.com’ “sets the specified property in your active configuration” and does NOT authenticate your Cloud SDK with email#mmm.com.
You can authenticate Cloud SDK by executing ‘gcloud auth init’ from the command line. For more information please refer to documentation. Note that this does not authenticate the BigQuery API as explained below, instead this authenticates the GCloud SDK command line tools such as bq command line and gcloud commands.
To authenticate your Google Cloud API calls, you need to use a service account key. Please refer to steps 3-4 in documentation for detailed steps on achieving this in node.js.
You cannot authenticate API calls with an email account. The workaround is to use service account impersonation, please refer to documentation for further explanation.