Encoding issue when using POST with v3 API

[Eduardo Scoz]

Hi guys,

It seems like I was finally able to understand exactly a problem that is happening to the new v3 API when passing data in the body of a POST request (used by the iOS library). 

Here's the problem: the API cannot understand UTF8 characters passed in filters, like the following request. The data always comes back as empty (no errors).

{

    "method": "analytics.data.ga.get",

    "id": "gtl_17",

    "jsonrpc": "2.0",

    "params": {

        "end-date": "2012-04-22",

        "ids": "ga:MYID",

        "filters": "ga:Region==Baden-Württemberg",

        "metrics": "ga:visits, ga:pageviews, ga:visitBounceRate, ga:pageviewsPerVisit",

        "start-date": "2012-03-23",

        "sort": "-ga:visits",

        "dimensions": "ga:City"

    },

    "apiVersion": "v3"

}

If I remove the filter, or change it to "ga:Region==Germany" (no utf8 chars), it works correctly. But when I pass the ü it fails. It also fails for names that have commas in them, like the region of "Mariy El, Republic" in Russia. I tried to urlencode the filter to "ga:Region==Baden-W%C3%BCrttemberg", but it doesn't work either.

This works when doing normal GET requests (worked correctly on http://ga-dev-tools.appspot.com/explorer/?csw=1). 

Any ideas? This is causing a lot of frustration for some of the users of my app Quicklytics..

Thanks!

Eduardo Scoz

[Nick]

Hi,

Our Core Reporting API is designed to only work with GET so I'm surprised you are making POST requests. It might be that POST is incorrectly encoding utf8 characters?

-Nick

[Eduardo Scoz]

Hi Nick,

I'm using the Google Analytics SDK for iOS, which uses the GTMHTTPFetcher library to POST the request to Google. It works with POSTs out of the box, I haven't made any changes. Everything but this seems to work correctly.

From looking at the code, it uses UTF8 encoding correctly; I was able to decode the text just before it's sent to google and it appears correctly on the client.

[Eduardo Scoz]

any chance somebody could look into this? It's still an issue..

[Nick]

Hi,

We looked into it and we fixed it for you Eduardo.

See our most recent change log update for 2012-05: https://developers.google.com/analytics/community/export_changelog

-Nick

[Eduardo Scoz]

Yup, I saw that update yesterday.. Thanks so much Nick/team! App works perfectly now.

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