The map field didn't work because it would be an object *inside* the reply
-- like so:
{
"balances": {
"somekey": "somevalue"
}
}
To make the top-level object an arbitrary map, it would need to be a
google.protobuf.Struct
<https://github.com/protocolbuffers/protobuf/blob/main/src/google/protobuf/struct.proto#L43-L54>.
This type is basically analogous to a JSON object with arbitrary
keys/properties.
The downside to that type is that it is not type-safe: the values can be
*any* type. So you'd need to do something special in the consuming code to
check that all values are of an expected type (e.g. string).
----
*Josh Humphries*
[email protected]
On Thu, Nov 24, 2022 at 12:28 PM MantasS <[email protected]> wrote:
> I'm trying to model this JSON into ProtoBuff reply:
> {
> "0xc02aaa39b223fe8d4a0e5c4f27ead9083c756cc2": "73185315951404654",
> "0x111111111117dc0aa78b770fa6a738034120c302": "90483392540197705773",
> "0xdac17f958d2ee523a2206206944597c13d831ec7": "2599292593",
> }
>
> Tried to use map:
>
> message Reply { map<string, string> balances = 1; }
> but ended up with this error message:
> Object literal may only specify known properties, and
> '0xc02aaa39b223fe8d4a0e5c4f27ead9083c756cc2' does not exist in type 'Reply'.
>
> Is there a way to return this type of JSON?
>
>
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