8 files changed, 131 insertions, 0 deletions
diff --git a/lib/api-config/Cargo.toml b/lib/api-config/Cargo.toml
new file mode 100644
index 0000000..ec31262
--- /dev/null
+++ b/lib/api-config/Cargo.toml
@@ -0,0 +1,26 @@
+[package]
+name = "api-config"
+version = "0.1.0"
+edition = "2024"
+license.workspace = true
+readme.workspace = true
+documentation.workspace = true
+homepage.workspace = true
+publish.workspace = true
+
+[dependencies]
+serde.workspace = true
+serde_json.workspace = true
+thiserror.workspace = true
+time = { workspace = true, features = ["serde"] }
+tracing.workspace = true
+utoipa = { workspace = true, optional = true }
+warden-core.workspace = true
+
+[features]
+default = []
+utoipa = ["dep:utoipa", "utoipa/time"]
+
+[dependencies.sqlx]
+workspace = true
+features = ["json", "runtime-tokio-rustls", "time"]
diff --git a/lib/api-config/src/error.rs b/lib/api-config/src/error.rs
new file mode 100644
index 0000000..6f7b099
--- /dev/null
+++ b/lib/api-config/src/error.rs
@@ -0,0 +1,13 @@
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum ConfigurationError {
+    #[error("data store disconnected")]
+    Disconnect(#[from] sqlx::Error),
+    #[error("the data for key `{0}` is not available")]
+    Redaction(String),
+    #[error("invalid header (expected {expected:?}, found {found:?})")]
+    InvalidHeader { expected: String, found: String },
+    #[error("unknown data store error")]
+    Unknown,
+}
diff --git a/lib/api-config/src/lib.rs b/lib/api-config/src/lib.rs
new file mode 100644
index 0000000..84366c1
--- /dev/null
+++ b/lib/api-config/src/lib.rs
@@ -0,0 +1,3 @@
+mod error;
+pub mod schema;
+pub use error::ConfigurationError;
diff --git a/lib/api-config/src/schema/create.rs b/lib/api-config/src/schema/create.rs
new file mode 100644
index 0000000..5c91f64
--- /dev/null
+++ b/lib/api-config/src/schema/create.rs
@@ -0,0 +1,15 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Deserialize, Serialize)]
+#[cfg_attr(feature = "utoipa", derive(utoipa::ToSchema))]
+/// Transaction to monitor
+pub struct CreateSchema {
+    #[serde(rename = "type")]
+    /// Transaction schema type
+    pub kind: String,
+    /// The schema's version
+    pub version: String,
+    /// Transaction data
+    #[serde(rename = "json_schema")]
+    pub schema: serde_json::Value,
+}
diff --git a/lib/api-config/src/schema/mod.rs b/lib/api-config/src/schema/mod.rs
new file mode 100644
index 0000000..654e6ad
--- /dev/null
+++ b/lib/api-config/src/schema/mod.rs
@@ -0,0 +1,33 @@
+pub mod create;
+
+use serde::{Deserialize, Serialize};
+use time::OffsetDateTime;
+
+use crate::ConfigurationError;
+
+/// Transaction to monitor
+#[derive(Deserialize, Serialize)]
+#[cfg_attr(feature = "utoipa", derive(utoipa::ToSchema))]
+pub struct TransactionSchema {
+    #[serde(rename = "type")]
+    /// Transaction schema type
+    pub kind: String,
+    /// The schema's version
+    pub version: String,
+    /// JSON schema for transcation
+    #[serde(rename = "json_schema")]
+    pub schema: serde_json::Value,
+    #[serde(with = "time::serde::rfc3339")]
+    pub created_at: OffsetDateTime,
+    #[serde(with = "time::serde::rfc3339")]
+    pub updated_at: OffsetDateTime,
+}
+
+pub trait SchemaDriver {
+    fn create(
+        &self,
+        name: impl AsRef<str>,
+        version: impl AsRef<str>,
+        schema: serde_json::Value,
+    ) -> impl std::future::Future<Output = Result<TransactionSchema, ConfigurationError>> + Send + Sync;
+}
diff --git a/lib/warden-core/src/lib.rs b/lib/warden-core/src/lib.rs
index f200ba1..413087b 100644
--- a/lib/warden-core/src/lib.rs
+++ b/lib/warden-core/src/lib.rs
@@ -1,3 +1,4 @@
 mod error;
 pub use error::WardenError;
 pub mod config;
+pub mod state;
diff --git a/lib/warden-core/src/state/database.rs b/lib/warden-core/src/state/database.rs
new file mode 100644
index 0000000..cf34484
--- /dev/null
+++ b/lib/warden-core/src/state/database.rs
@@ -0,0 +1,16 @@
+use sqlx::PgPool;
+use tracing::{debug, error};
+
+use crate::{WardenError, config::cli::database::Database};
+
+pub async fn connect(config: &Database) -> Result<PgPool, WardenError> {
+    let url = config.get_url()?;
+    let host = url.host_str();
+    debug!(host = host, "connecting to database");
+
+    Ok(sqlx::postgres::PgPoolOptions::new()
+        .max_connections(config.database_pool_size.unwrap_or(10))
+        .connect(url.as_str())
+        .await
+        .inspect_err(|e| error!("{e}"))?)
+}
diff --git a/lib/warden-core/src/state/mod.rs b/lib/warden-core/src/state/mod.rs
new file mode 100644
index 0000000..f4692c2
--- /dev/null
+++ b/lib/warden-core/src/state/mod.rs
@@ -0,0 +1,24 @@
+pub(crate) mod database;
+use sqlx::PgPool;
+use tracing_subscriber::EnvFilter;
+
+use crate::{WardenError, config::Configuration};
+
+pub type LogHandle = tracing_subscriber::reload::Handle<EnvFilter, tracing_subscriber::Registry>;
+
+#[derive(Debug, Clone)]
+pub struct AppState {
+    pub log_handle: LogHandle,
+    pub database: PgPool,
+}
+
+impl AppState {
+    pub async fn new(log_handle: LogHandle, config: &Configuration) -> Result<Self, WardenError> {
+        let database = database::connect(&config.database).await?;
+
+        Ok(Self {
+            log_handle,
+            database,
+        })
+    }
+}