Serde is a framework for serializing and deserializing Rust data structures efficiently and generically.
Serde is a framework for serializing and deserializing Rust data structures efficiently and generically.
Questions tagged [serde]
839 questions
0
votes
1 answer
The trait Serialize is not implemented despite being implemented?
I'm using actix-web for creating an app for reclaiming packets, then inserting them into MongoDB database. I have a struct
#[derive(Serialize, Deserialize, Debug)]
pub struct Gyro{
/// GYRO FRONT + MIDDLE
pub x0x800: [i32; 12],
…
Patrox27
- 3
- 2
0
votes
1 answer
How do I serialize an enum to a number and deserialize from a number via serde-json?
struct ResponseData {
success : bool,
res_data : T,
}
struct FooRes {
result:RESULT,
}
num RESULT {
RESULT_OK = 0,
RESULT_NG = 1,
}
fn test(){
let s = ResponseData::{
success : true,
res_data : FooRes{
…
Ryo-chan
- 31
- 2
0
votes
1 answer
How do I serialize from request's Response with JSON into a typed struct?
I don't understand how I can convert a requests::Response to a serde JSON object. I tried this:
extern crate requests;
extern crate serde;
#[macro_use]
extern crate serde_derive;
extern crate serde_json;
fn get_json() -> requests::Response {
…
XaniXxable
- 109
- 1
- 9
0
votes
1 answer
How to just use custom serialisation for "stringy" serialisation?
I've recently got to grips with custom serialisation/deserialisation: https://stackoverflow.com/a/63846824/129805
I want to use this custom "stringy" serialisation (and des.) only for JSON and RON, while using the #[derive(Serialisation, ... for all…
fadedbee
- 42,671
- 44
- 178
- 308
0
votes
0 answers
Cannot get the lifetimes right when implementing serde's sequence serializer for MessagePack
I want to write a no-std compatible MessagePack serializer/deserializer in Rust. I have most of the serialization working, but I am struggling with serializing structs, sequences and maps using serde. I copied a lot from serde_json_core, but I can't…
Karsten
- 1,814
- 2
- 17
- 32
0
votes
0 answers
How to split enum variants and their contents in Rust to generate correct JSON schema
With schemars, it is possible to generate a JSON schema from Rust code.
Consider this JSON example:
{
"cause" : {
"type" : "EVT1",
"payload" : {
"cause_id" : "ABC-123"
}
}
}
and the Rust code used to generate the…
nomad
- 131
- 1
- 8
0
votes
1 answer
"key must be a string" when deserializing a JSON string with Serde
I'm building a React app utilizing Rust for complex computations. In this case I'm passing a JSON formatted string from the React app to Rust:
{
{'clientid': 1, 'category': 'Category #1', 'subcategory': 'Subcategory #1', 'cost': 1000.00},
…
chasahodge
- 373
- 1
- 4
- 11
0
votes
1 answer
How to modify a string inside a serde_json::Value::String?
I have a serde_json::Value containing a string that I want to modify, if possible without cloning the string. I would imagine you would do it like this:
let mut value = Value::String("Hello world".to_string());
let mut string =…
Anders
- 8,307
- 9
- 56
- 88
0
votes
2 answers
Deserializing multiple JSON fields to a single Vec in serde
Could you please help me with the following problem?
I have a JSON:
{
"some_other_field": "value",
"option1": "value1",
"option2": "value2",
[...]
"option10": "value10",
}
There are up to X optionX fields which are all…
Antonio Grant
- 3
- 3
0
votes
0 answers
How can I deserialize a single field from an array of objects with serde_json?
I have JSON where a key has an array of objects and I'm only interested in one of the strings within that:
{
"actors": [{
"name": "Bob",
"foo": "bar"
}, {
"name": "Jim",
"foo": "baz"
}],
"fruits": [{
…
SuperWig
- 155
- 3
- 14
0
votes
0 answers
odbc_iter error: the trait `serde::ser::Serialize` is not implemented for `odbc_iter::value::Value`
Please help, I got this serde not implemented for trait error when i am trying out odbc_iter example
let row = db.query::("SELECT 'hello world', CAST(42 AS INTEGER), CAST(10000000 AS BIGINT)")
.expect("failed to run…
yih lim
- 13
- 3
0
votes
1 answer
Websocket JSON parsing type mismatch
I'm trying to hack together a simple WebSocket client using tungstenite that parses JSON. Most of the code comes from this example.
If I do println!("{}", msg) It works fine, so I'm not sure why the type is mismatched (msg is supposedly a string…
SoGoddamnUgly
- 706
- 4
- 9
0
votes
2 answers
How to use serde to deserialize a json formatted array of structs within a struct?
Suppose I have the following structs "Wheel" and "Car" where a "Car" can contain a list of Cars (a recursive definition).
use serde::{Deserialize, Serialize};
#[derive(Serialize, Deserialize, Debug, Clone)]
pub struct Wheel {
#[serde(default,…
Nona
- 5,302
- 7
- 41
- 79
0
votes
1 answer
Serde Deserializer, how to have distinct behavior while decoding an `u8` directly and a `u8` in a `Vec`
I'm writing a Deserializer for a format that already exists, but the format has one peculiarity which I don't know how to implement in serde:
// pseudo code
fn example(){
// when decoding an u8 directly, the value 0x00 is invalid
…
Augusto Hack
- 2,032
- 18
- 35
0
votes
1 answer
Yew callback for different Json structs
I am using yew with the WebsocketService and sending jsonrpcs to a backend and receive the according answers. I have a problem to distinguish between valid and error jsonrpc answers.
Within the model implementation, I create the callback via:
let…
mostsignificant
- 312
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