On Tuesday, 25 June 2019 at 05:33:57 UTC, mark wrote:
I have the following array of structs:
struct Person {
string name;
int age;
};
Person people[];
Person p;
Person p1 = {
"Bob",
12
};
Person p2 = {
"Bob",
12
};
people ~= p1;
people ~= p2;
I've read through the std.json documentation, but I'm still
confused as to how to create an array of objects, especially if
the objects are structs.
I've included this:
JSONValue jj;
jj["nodes"].array = [];
But I get the error: JSONValue is not an object. Ideally, I'd
like to have a json output that looks like this:
[
{
"name": "Bob",
"age": 12
},
{
"name": "Bob",
"age": 12
},
]
Any help would be greatly appreciated.
As far as I can tell, there's no "out of the box" support for
serialization in std.json. You can work around that by manually
supplying the serialization:
https://run.dlang.io/is/AZqTJE
struct Person
{
string name;
int age;
JSONValue toJson()
{
return JSONValue(["name": JSONValue(name), "age":
JSONValue(age)]);
}
}
auto json = JSONValue(people.map!(p => p.toJson).array);
writeln(json);
I use the data module from vibe.d, which supports data
serialization:
http://code.dlang.org/packages/vibe-d%3Adata
https://vibed.org/api/vibe.data.json/
struct Person
{
string name;
int age;
}
auto json = people.serializeToJson();
writeln(json);
