How to request data from google analytics multi-channel funnels - node.js

Question

I can successfully request data from the google analytics core reporting api but am struggling to pull from the multi-channel funnels api. I am pretty sure my problem is with permission/access but I've gone through the documentation and can't figure out exactly what the problem is. I am using node and the googleapis library. Here is my code for pulling the google analytics information (This works)
var {google} = require('googleapis');
var key = require('./auth.json');
var viewID = 'XXXXXXX';
var analytics = google.analyticsreporting('v4');
var jwtClient = new google.auth.JWT(key.client_email,
null,
key.private_key,
['https://www.googleapis.com/auth/analytics.readonly'],
null);
jwtClient.authorize(function (err, tokens) {
if (err) {
console.log(err);
return;
} else {
console.log('Yup, we got authorized!');
console.log(tokens)
}
});
var req = {
reportRequests: [{
viewId: viewID,
dateRanges: [{
startDate: '2020-11-01',
endDate: '2020-11-01'}],
metrics: [{expression: 'ga:pageViews'}],
dimensions: [{name: 'ga:city'}],
pageSize: 10
}],
};
analytics.reports.batchGet({
auth: jwtClient,
resource: req
},
function (err, response) {
if (err) {
console.log('Failed to get Report');
console.log(err);
return;
}
console.log('Success');
console.log(response.data)
}
);
This produces the desired output just fine. I tried to change the metrics and dimensions so I can pull some multi-channel funnel information that I want but am getting an error
var {google} = require('googleapis');
var key = require('./auth.json');
var viewID = 'XXXXXXX';
var analytics = google.analyticsreporting('v4');
var jwtClient = new google.auth.JWT(key.client_email,
null,
key.private_key,
['https://www.googleapis.com/auth/analytics.readonly'],
null);
jwtClient.authorize(function (err, tokens) {
if (err) {
console.log(err);
return;
} else {
console.log('Yup, we got authorized!');
console.log(tokens)
}
});
var req = {
reportRequests: [{
viewId: viewID,
dateRanges: [{
startDate: '2020-11-01',
endDate: '2020-11-01'}],
metrics: [{expression: 'mcf:sourceMedium'}],
dimensions: [{name: 'mcf:lastInteractionConversions'}],
pageSize: 10
}],
};
analytics.reports.batchGet({
auth: jwtClient,
resource: req
},
function (err, response) {
if (err) {
console.log('Failed to get Report');
console.log(err);
return;
}
console.log('Success - got something back from the Googlez');
console.log(response.data)
}
);
It is producing this
code: 400,
errors: [
{
message: 'Unknown dimensions(s): mcf:lastInteractionConversions, unknown metric(s): mcf:sourceMedium\n' +
'For details see https://developers.google.com/analytics/devguides/reporting/core/dimsmets.',
domain: 'global',
reason: 'badRequest'
}
]
I am pretty sure my problem is either I am requesting from the wrong source or my permissions are only available for ga and not mcf, but I don't fully understand the reason for the error or how to fix it, and the documentation hasn't provided much help. Any help would be appreciated, thanks.

Answer 1

You are using Reporting API V4 instead of Multi-Channel Funnels API V3: https://developers.google.com/analytics/devguides/reporting/mcf/v3/reference
The API you need provides a single method to request data:
analytics.data.mcf.get()