42203 - Conversion of JSON to Avro failed

[Denny Britz]

Hello,

I have the following schema: https://gist.github.com/dennybritz/224082c5b95eed0e574c

And I'm trying to POST this record: https://gist.github.com/dennybritz/f0c4a324b48239ab4cb8

I am getting a 42203 "Conversion of JSON to Avro failed" error. I'm new to Avro but I've spend several hours trying to debug this fiddling around with records and schema. I can't see what's going wrong. Any ideas?

[Jun Rao]

Your JSON has to match Avro's JSON encoding, which has a few special rules (see http://avro.apache.org/docs/1.7.7/spec.html#json_encoding). In the case of union type, the JSON encoding need to include the type, unless the type is null.

So, instead of 

{
    "url":"Text",
    "title":"Text",
    "authors":[],
    "keywords":[],
    "text":"Text",
    "tags":[],
    "publishDate": "",
    "metaDescription":"",
    "metadata":""
}

you will need sth like the following

{
    "url":"Text",
    "title":"Text",
    "authors":[],
    "keywords":[],
    "text":"Text",
    "tags":[],
    "publishDate": {"string": ""},
    "metaDescription": {"string": ""},
    "metadata": {"string": ""}
}

Thanks,

Jun

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[Denny]

Ah! Thank you Jun, I should have read that part more carefully.

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