[vpp-dev] how to know data type mapping between *.api.json with PYTHON API ?

[Pei, Yulong]

Hello vpp-dev & csit-dev,

I  have a question about how to know data type mapping between  *.api.json with 
PYTHON API ?

Let me use "./src/vnet/ip/ip.api" as example,  as I know,   vppapigen will 
autogenerate  "ip.api.json" from "ip.api"

And then vpp_papi can autogenerate  its python api from "ip.api.json", is there 
any way to know data type mapping between  *.api.json with PYTHON API ?

For example:

In "./src/vnet/ip/ip.api",

define ip6_fib_details
{
  u32 context;
  u32 table_id;
  u8  table_name[64];
  u8  address_length;
  u8  address[16];
  u32 count;
  u32 stats_index;
  vl_api_fib_path_t path[count];
};

Then in   "ip.api.json", I  got,

        [
            "ip6_fib_details",
            [
                "u16",
                "_vl_msg_id"
            ],
            [
                "u32",
                "context"
            ],
            [
                "u32",
                "table_id"
            ],
            [
                "u8",
                "table_name",
                64
            ],
            [
                "u8",
                "address_length"
            ],
            [
                "u8",
                "address",
                16
            ],
            [
                "u32",
                "count"
            ],
            [
                "u32",
                "stats_index"
            ],
            [
                "vl_api_fib_path_t",
                "path",
                0,
                "count"
            ],
            {
                "crc": "0xef11e94d"
            }
        ],

My question is that which kind of python data type can be used to map below 
json types ?
            [
                "u8",
                "table_name",
                64
            ],

            [
                "u8",
                "address",
                16
            ],

            [
                "vl_api_fib_path_t",
                "path",
                0,
                "count"
            ],

Best Regards
Yulong Pei



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