Parse Json

Retrieve json field value without proper defining struct in Go

using type assertion.

Photo by Fotis Fotopoulos on Unsplash

For example you want to retrieve variant_id from this json

"_shards": {
        "total": 20,
        "successful": 20,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": 150798,
        "max_score": 6.5599113,
        "hits": [
            {
                "_index": "zz",
                "_type": "3",
                "_id": "1",
                "_score": 6.5599113,
                "_source": {
                    "project_id": "xxxx",
                    "auth_resource_path": "/programs/DGV4VN/projects/VN1000G",
                    "variant_id": "tttt",
                    "flag": true,
                    "allele": "?",
                    "consequence": "?",
                    "impact": "zz",
                    "symbol": "l",
                    "gene": "z",
                    "feature_type": "z",
                    "feature": "z",
                    "biotype": "z",
                    "hgvsc": "k",
                    "strand": "-1",
...                }
            },
            {
               ...
                }
            },
        ]
    }
}

Hope it helps.

Happy coding!