Parse dynamic key in Json in Go

There is time, when we’re not sure what the key_name in json data will be. How do we do it in Go?

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We will use interface for the dynamic key.

For example the json value be like:

{
  "TRPV6": {
    "ncbi": {
      "symbol": "",
      "symbol_source": "",
      "id": "",
      "gene_name": "",
      "gene_synonyms": null,
      "biotype": "",
      "contig": "",
      "start": 0,
      "end": 0,
      "reference_genome": "",
      "strand": "",
      "description": ""
    },
    "ensembl": {
      "symbol": "TRPV6",
      "symbol_source": "ensembl_havana",
      "id": "ENSG00000165125",
      "gene_name": "TRPV6",
      "gene_synonyms": [
        "CaT1",
        "ECAC2"
      ],
      "biotype": "",
      "contig": "chr7",
      "start": 142871208,
      "end": 142885745,
      "reference_genome": "GRCh38",
      "strand": "-",
      "description": ""
    },
    "gene_cards": {
      "symbol": "",
      "id": "",
      "gene_name": "",
      "gene_synonyms": null,
      "biotype": "",
      "contig": ""…