# sqlx-transparent-json-decode
This crate is meant for use with [sqlx](https://github.com/launchbadge/sqlx) and allows you to query JSON or JSONB fields from PostgreSQL without needing to wrap the types in a `sqlx::types::Json<>` wrapper type.
```rust
use serde::{Deserialize, Serialize};
use sqlx_transparent_json_decode::sqlx_json_decode;
#[derive(Serialize, Deserialize)]
pub struct SomeJsonField {
// Whatever fields match the JSON structure
pub name: String,
pub some_param: Option<String>,
pub count: i32,
}
sqlx_json_decode!(SomeJsonField);
#[derive(sqlx::FromRow)]
pub struct QueryResult {
pub id: i32,
pub name: String,
pub params: SomeJsonField,
}
```
Normally, you would need to use `Json<SomeJsonField>` as the type for `params` in the above example. This crate allows you to use `SomeJsonField` directly.
```rust
let result = sqlx::query_as::<_, QueryResult>(
r##"SELECT id,
name,
params as "params: SomeJsonField"
FROM some_table"##,
).fetch_one(&pool).await?;
```