minor edit

.gitignore

@@ -1,4 +1,6 @@
 /target
 Cargo.lock
+
 *.log
-test.db*
+
+demo.db*

Cargo.toml

@@ -12,6 +12,13 @@ log = { version = "^0.4", features = [
 ] }
 fern = "^0.5"
 
+# serialization
+serde = { version = "^1.0.127", features = ["derive"] }
+serde_json = "^1.0.66"
+
+# ids
+uuid = { version = "0.8.2", features = ["v4"] }
+
 # sqlx
 sqlx = { version = "0.5.6", features = [
   # tokio + rustls

Makefile

@@ -5,6 +5,9 @@ all:
 
 clean:
 	rm -rf target
+	rm -rf Cargo.lock
+	rm -rf *.log
+	rm -rf demo.db*
 
 build:
 	cargo build
@@ -14,6 +17,7 @@ test:
 
 up:
 	docker-compose up -d
+	rm -rf demo.db*
 
 down:
 	docker-compose down

README.md

@@ -1 +1,21 @@
-# sqlx Test
+# `sqlx` Test
+
+This is a test program to try few things with the `sqlx` library.
+The idea is to figure out everything needed to support
+moving [cqrs-es2](https://github.com/brgirgis/cqrs-es2) to use `sqlx`.
+
+## Build
+
+To build the executable simply trigger `Cargo`
+
+    cargo build
+
+## Usage
+
+To run the executable you will need to spin up the database stack:
+
+    docker-compose up -d
+
+Wait for a few seconds for the stack to be ready and then you can run the executable:
+
+    cargo run

db/mariadb/init.sql

@@ -4,11 +4,11 @@ USE demo;
 -- a single table is used for all events in the cqrs system
 CREATE TABLE events
 (
-    aggregate_type VARCHAR(256)                         NOT NULL,
-    aggregate_id   VARCHAR(256)                         NOT NULL,
-    sequence       bigint CHECK (sequence >= 0) ,
-    payload        TEXT                       ,
-    metadata       TEXT                        ,
+    aggregate_type VARCHAR(256)                 NOT NULL,
+    aggregate_id   VARCHAR(256)                 NOT NULL,
+    sequence       bigint CHECK (sequence >= 0)         ,
+    payload        TEXT                                 ,
+    metadata       TEXT                                 ,
     timestamp      timestamp DEFAULT (CURRENT_TIMESTAMP),
     PRIMARY KEY (aggregate_type, aggregate_id, sequence)
 );

db/mssql/init.sql

@@ -18,10 +18,20 @@ GO
 CREATE USER demo_user WITH PASSWORD = 'pas$w0rd';
 GO
 
-CREATE TABLE Products (ID int, ProductName nvarchar(max));
+-- a single table is used for all events in the cqrs system
+CREATE TABLE events
+(
+    aggregate_type VARCHAR(256)                         NOT NULL,
+    aggregate_id   VARCHAR(256)                         NOT NULL,
+    sequence       bigint CHECK (sequence >= 0) NOT NULL,
+    payload        TEXT         NOT NULL,
+    metadata       TEXT         NOT NULL,
+    PRIMARY KEY (aggregate_type, aggregate_id, sequence)
+);
+
 GO
 
-GRANT SELECT ON OBJECT::dbo.Products TO demo_user;
-GRANT INSERT ON OBJECT::dbo.Products TO demo_user;
-GRANT UPDATE ON OBJECT::dbo.Products TO demo_user;
-GRANT DELETE ON OBJECT::dbo.Products TO demo_user;
+GRANT SELECT ON OBJECT::dbo.events TO demo_user;
+GRANT INSERT ON OBJECT::dbo.events TO demo_user;
+GRANT UPDATE ON OBJECT::dbo.events TO demo_user;
+GRANT DELETE ON OBJECT::dbo.events TO demo_user;

db/mysql/init.sql

@@ -4,11 +4,11 @@ USE demo;
 -- a single table is used for all events in the cqrs system
 CREATE TABLE events
 (
-    aggregate_type VARCHAR(256)                         NOT NULL,
-    aggregate_id   VARCHAR(256)                         NOT NULL,
+    aggregate_type VARCHAR(256)                 NOT NULL,
+    aggregate_id   VARCHAR(256)                 NOT NULL,
     sequence       bigint CHECK (sequence >= 0) NOT NULL,
-    payload        TEXT         NOT NULL,
-    metadata       TEXT         NOT NULL,
+    payload        TEXT                         NOT NULL,
+    metadata       TEXT                         NOT NULL,
     timestamp      timestamp DEFAULT (CURRENT_TIMESTAMP),
     PRIMARY KEY (aggregate_type, aggregate_id, sequence)
 );

docker-compose.yml

@@ -8,7 +8,7 @@ services:
     networks:
       - default
     ports:
-      - "8084:3306"
+      - "8081:3306"
     environment:
       #- "MARIADB_USER=root"
       - "MARIADB_ROOT_PASSWORD=admin_pass"
@@ -24,7 +24,7 @@ services:
     networks:
       - default
     ports:
-      - "8085:1433"
+      - "8082:1433"
     environment:
       #- "SA_USER=sa"
       - "SA_PASSWORD=adm1n_pa%s"
@@ -37,7 +37,7 @@ services:
     networks:
       - default
     ports:
-      - "8086:3306"
+      - "8083:3306"
     environment:
       #- "MYSQL_USER=root"
       - "MYSQL_ROOT_PASSWORD=admin_pass"
@@ -50,7 +50,7 @@ services:
     networks:
       - default
     ports:
-      - "8087:5432"
+      - "8084:5432"
     environment:
       - "POSTGRES_USER=admin"
       - "POSTGRES_PASSWORD=admin_pass"
@@ -61,9 +61,8 @@ services:
     networks:
       - default
     ports:
-      - "8083:8080"
+      - "8080:8080"
     depends_on:
       - maria-db
-      - mssql-db
       - mysql-db
       - postgres-db

src/check_maria_db.rs

@@ -1,15 +1,67 @@
 use log::info;
 
+use std::collections::HashMap;
+
 use sqlx::mysql::{
     MySqlConnectOptions,
+    MySqlPool,
     MySqlPoolOptions,
 };
 
-pub async fn check_maria_db() -> Result<(), sqlx::Error> {
-    // "mysql://demo_user:demo_pass@localhost:8084/demo"
+static INSERT_EVENT: &str = "
+INSERT INTO
+    events
+    (
+        aggregate_type,
+        aggregate_id,
+        sequence,
+        payload,
+        metadata
+    )
+VALUES
+    (
+        ?,
+        ?,
+        ?,
+        ?,
+        ?
+    );
+";
+
+static SELECT_EVENTS_WITH_METADATA: &str = "
+SELECT
+    sequence,
+    payload,
+    metadata
+FROM
+    events
+WHERE
+    aggregate_type = ?
+    AND
+    aggregate_id = ?
+ORDER BY 
+    sequence;
+";
+
+static UPDATE_EVENTS: &str = "
+UPDATE
+    events
+SET
+    payload = ?,
+    metadata = ?
+WHERE
+    aggregate_type = ?
+    AND
+    aggregate_id = ?
+    AND
+    sequence = ?;
+";
+
+pub async fn get_pool() -> Result<MySqlPool, sqlx::Error> {
+    // "mysql://demo_user:demo_pass@localhost:8081/demo"
     let options = MySqlConnectOptions::new()
         .host("localhost")
-        .port(8084)
+        .port(8081)
         .database("demo")
         .username("demo_user")
         .password("demo_pass");
@@ -19,12 +71,152 @@ pub async fn check_maria_db() -> Result<(), sqlx::Error> {
         .connect_with(options)
         .await?;
 
-    // Make a simple query to return the given parameter
-    let row = sqlx::query("SELECT * from events")
+    Ok(pool)
+}
+
+pub async fn test_insert_select_update() -> Result<(), sqlx::Error> {
+    let pool = get_pool().await?;
+
+    // insert
+    let mut payload = HashMap::new();
+    payload.insert("k".to_string(), "v".to_string());
+
+    let payload = match serde_json::to_value(payload) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "payload serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let mut metadata = HashMap::new();
+    metadata.insert("k1".to_string(), "v1".to_string());
+
+    let metadata = match serde_json::to_value(metadata) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "metadata serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let aggregate_type = uuid::Uuid::new_v4().to_string();
+    let aggregate_id = uuid::Uuid::new_v4().to_string();
+
+    let rows_affected = sqlx::query(INSERT_EVENT)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .bind(1)
+        .bind(payload)
+        .bind(metadata)
+        .execute(&pool)
+        .await?
+        .rows_affected();
+
+    info!(
+        "Insert affected '{}' rows",
+        rows_affected
+    );
+
+    // select
+    let rows: Vec<(
+        i64,
+        serde_json::Value,
+        serde_json::Value,
+    )> = sqlx::query_as(SELECT_EVENTS_WITH_METADATA)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
         .fetch_all(&pool)
         .await?;
 
-    info!("Received {:?}", row);
+    info!("select success");
+
+    for row in rows {
+        let payload: HashMap<String, String> =
+            serde_json::from_value(row.1).unwrap();
+        let metadata: HashMap<String, String> =
+            serde_json::from_value(row.2).unwrap();
+        info!(
+            "{},{:?},{:?}",
+            &row.0, payload, metadata
+        )
+    }
+
+    // update
+    let mut payload = HashMap::new();
+    payload.insert("k2".to_string(), "v2".to_string());
+
+    let payload = match serde_json::to_value(payload) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "payload serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let mut metadata = HashMap::new();
+    metadata.insert("k3".to_string(), "v3".to_string());
+
+    let metadata = match serde_json::to_value(metadata) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "metadata serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let rows_affected = sqlx::query(UPDATE_EVENTS)
+        .bind(payload)
+        .bind(metadata)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .bind(1)
+        .execute(&pool)
+        .await?
+        .rows_affected();
+
+    info!(
+        "Insert affected '{}' rows",
+        rows_affected
+    );
+
+    // select
+    let rows: Vec<(
+        i64,
+        serde_json::Value,
+        serde_json::Value,
+    )> = sqlx::query_as(SELECT_EVENTS_WITH_METADATA)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .fetch_all(&pool)
+        .await?;
+
+    info!("select success");
+
+    for row in rows {
+        let payload: HashMap<String, String> =
+            serde_json::from_value(row.1).unwrap();
+        let metadata: HashMap<String, String> =
+            serde_json::from_value(row.2).unwrap();
+        info!(
+            "{},{:?},{:?}",
+            &row.0, payload, metadata
+        )
+    }
+
+    Ok(())
+}
+
+pub async fn check_maria_db() -> Result<(), sqlx::Error> {
+    test_insert_select_update().await?;
 
     Ok(())
 }

src/check_ms_sql.rs

@@ -1,27 +1,212 @@
 use log::info;
 
+use std::collections::HashMap;
+
 use sqlx::mssql::{
     MssqlConnectOptions,
     MssqlPool,
 };
 
-pub async fn check_ms_sql() -> Result<(), sqlx::Error> {
-    // "mssql://sa:'adm1n_pa%s'@localhost:8085/demo"
+static INSERT_EVENT: &str = "
+INSERT INTO
+    events
+    (
+        aggregate_type, 
+        aggregate_id,
+        sequence,
+        payload, 
+        metadata
+    )
+VALUES
+    (
+        ?,
+        ?,
+        ?,
+        ?,
+        ?
+    );
+";
+
+static SELECT_EVENTS_WITH_METADATA: &str = "
+SELECT
+    sequence,
+    payload,
+    metadata
+FROM
+    events
+WHERE
+    aggregate_type = $1
+    AND
+    aggregate_id = $2
+ORDER BY 
+    sequence;
+";
+
+static UPDATE_EVENTS: &str = "
+UPDATE
+    events
+SET
+    payload = $4,
+    metadata = $5
+WHERE
+    aggregate_type = $1
+    AND
+    aggregate_id = $2
+    AND
+    sequence = $3;
+";
+
+pub async fn get_pool() -> Result<MssqlPool, sqlx::Error> {
+    // "mssql://sa:'adm1n_pa%s'@localhost:8082/demo"
     let options = MssqlConnectOptions::new()
         .host("localhost")
-        .port(8085)
+        .port(8082)
         .database("demo")
         .username("demo_user")
         .password("pas$w0rd");
 
     let pool = MssqlPool::connect_with(options).await?;
 
-    // Make a simple query to return the given parameter
-    let _row = sqlx::query("SELECT * from Products")
-        .fetch_all(&pool)
-        .await?;
+    Ok(pool)
+}
 
-    info!("Received ok!");
+async fn test_insert_select_update() -> Result<(), sqlx::Error> {
+    let pool = get_pool().await?;
+
+    // insert
+    let mut payload = HashMap::new();
+    payload.insert("k".to_string(), "v".to_string());
+
+    let payload = match serde_json::to_string(&payload) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "payload serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let mut metadata = HashMap::new();
+    metadata.insert("k1".to_string(), "v1".to_string());
+
+    let metadata = match serde_json::to_string(&metadata) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "metadata serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let aggregate_type = uuid::Uuid::new_v4().to_string();
+    let aggregate_id = uuid::Uuid::new_v4().to_string();
+
+    let rows_affected = sqlx::query(INSERT_EVENT)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .bind(1)
+        .bind(payload)
+        .bind(metadata)
+        .execute(&pool)
+        .await?
+        .rows_affected();
+
+    info!(
+        "Insert affected '{}' rows",
+        rows_affected
+    );
+
+    // select
+    let rows: Vec<(i64, String, String)> =
+        sqlx::query_as(SELECT_EVENTS_WITH_METADATA)
+            .bind(&aggregate_type)
+            .bind(&aggregate_id)
+            .fetch_all(&pool)
+            .await?;
+
+    info!("select success");
+
+    for row in rows {
+        let payload: HashMap<String, String> =
+            serde_json::from_str(&row.1).unwrap();
+        let metadata: HashMap<String, String> =
+            serde_json::from_str(&row.2).unwrap();
+        info!(
+            "{},{:?},{:?}",
+            &row.0, payload, metadata
+        )
+    }
+
+    // update
+    let mut payload = HashMap::new();
+    payload.insert("k2".to_string(), "v2".to_string());
+
+    let payload = match serde_json::to_string(&payload) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "payload serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let mut metadata = HashMap::new();
+    metadata.insert("k3".to_string(), "v3".to_string());
+
+    let metadata = match serde_json::to_string(&metadata) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "metadata serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let rows_affected = sqlx::query(UPDATE_EVENTS)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .bind(1)
+        .bind(payload)
+        .bind(metadata)
+        .execute(&pool)
+        .await?
+        .rows_affected();
+
+    info!(
+        "Insert affected '{}' rows",
+        rows_affected
+    );
+
+    // select
+    let rows: Vec<(i64, String, String)> =
+        sqlx::query_as(SELECT_EVENTS_WITH_METADATA)
+            .bind(&aggregate_type)
+            .bind(&aggregate_id)
+            .fetch_all(&pool)
+            .await?;
+
+    info!("select success");
+
+    for row in rows {
+        let payload: HashMap<String, String> =
+            serde_json::from_str(&row.1).unwrap();
+        let metadata: HashMap<String, String> =
+            serde_json::from_str(&row.2).unwrap();
+        info!(
+            "{},{:?},{:?}",
+            &row.0, payload, metadata
+        )
+    }
+
+    Ok(())
+}
+
+pub async fn check_ms_sql() -> Result<(), sqlx::Error> {
+    test_insert_select_update().await?;
 
     Ok(())
 }

src/check_mysql.rs

@@ -1,15 +1,67 @@
 use log::info;
 
+use std::collections::HashMap;
+
 use sqlx::mysql::{
     MySqlConnectOptions,
+    MySqlPool,
     MySqlPoolOptions,
 };
 
-pub async fn check_mysql() -> Result<(), sqlx::Error> {
-    // "mysql://demo_user:demo_pass@localhost:8086/demo"
+static INSERT_EVENT: &str = "
+INSERT INTO
+    events
+    (
+        aggregate_type,
+        aggregate_id,
+        sequence,
+        payload,
+        metadata
+    )
+VALUES
+    (
+        ?,
+        ?,
+        ?,
+        ?,
+        ?
+    );
+";
+
+static SELECT_EVENTS_WITH_METADATA: &str = "
+SELECT
+    sequence,
+    payload,
+    metadata
+FROM
+    events
+WHERE
+    aggregate_type = ?
+    AND
+    aggregate_id = ?
+ORDER BY 
+    sequence;
+";
+
+static UPDATE_EVENTS: &str = "
+UPDATE
+    events
+SET
+    payload = ?,
+    metadata = ?
+WHERE
+    aggregate_type = ?
+    AND
+    aggregate_id = ?
+    AND
+    sequence = ?;
+";
+
+pub async fn get_pool() -> Result<MySqlPool, sqlx::Error> {
+    // "mysql://demo_user:demo_pass@localhost:8083/demo"
     let options = MySqlConnectOptions::new()
         .host("localhost")
-        .port(8086)
+        .port(8083)
         .database("demo")
         .username("demo_user")
         .password("demo_pass");
@@ -19,12 +71,152 @@ pub async fn check_mysql() -> Result<(), sqlx::Error> {
         .connect_with(options)
         .await?;
 
-    // Make a simple query to return the given parameter
-    let row = sqlx::query("SELECT * from events")
+    Ok(pool)
+}
+
+pub async fn test_insert_select_update() -> Result<(), sqlx::Error> {
+    let pool = get_pool().await?;
+
+    // insert
+    let mut payload = HashMap::new();
+    payload.insert("k".to_string(), "v".to_string());
+
+    let payload = match serde_json::to_value(payload) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "payload serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let mut metadata = HashMap::new();
+    metadata.insert("k1".to_string(), "v1".to_string());
+
+    let metadata = match serde_json::to_value(metadata) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "metadata serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let aggregate_type = uuid::Uuid::new_v4().to_string();
+    let aggregate_id = uuid::Uuid::new_v4().to_string();
+
+    let rows_affected = sqlx::query(INSERT_EVENT)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .bind(1)
+        .bind(payload)
+        .bind(metadata)
+        .execute(&pool)
+        .await?
+        .rows_affected();
+
+    info!(
+        "Insert affected '{}' rows",
+        rows_affected
+    );
+
+    // select
+    let rows: Vec<(
+        i64,
+        serde_json::Value,
+        serde_json::Value,
+    )> = sqlx::query_as(SELECT_EVENTS_WITH_METADATA)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
         .fetch_all(&pool)
         .await?;
 
-    info!("Received {:?}", row);
+    info!("select success");
+
+    for row in rows {
+        let payload: HashMap<String, String> =
+            serde_json::from_value(row.1).unwrap();
+        let metadata: HashMap<String, String> =
+            serde_json::from_value(row.2).unwrap();
+        info!(
+            "{},{:?},{:?}",
+            &row.0, payload, metadata
+        )
+    }
+
+    // update
+    let mut payload = HashMap::new();
+    payload.insert("k2".to_string(), "v2".to_string());
+
+    let payload = match serde_json::to_value(payload) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "payload serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let mut metadata = HashMap::new();
+    metadata.insert("k3".to_string(), "v3".to_string());
+
+    let metadata = match serde_json::to_value(metadata) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "metadata serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let rows_affected = sqlx::query(UPDATE_EVENTS)
+        .bind(payload)
+        .bind(metadata)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .bind(1)
+        .execute(&pool)
+        .await?
+        .rows_affected();
+
+    info!(
+        "Insert affected '{}' rows",
+        rows_affected
+    );
+
+    // select
+    let rows: Vec<(
+        i64,
+        serde_json::Value,
+        serde_json::Value,
+    )> = sqlx::query_as(SELECT_EVENTS_WITH_METADATA)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .fetch_all(&pool)
+        .await?;
+
+    info!("select success");
+
+    for row in rows {
+        let payload: HashMap<String, String> =
+            serde_json::from_value(row.1).unwrap();
+        let metadata: HashMap<String, String> =
+            serde_json::from_value(row.2).unwrap();
+        info!(
+            "{},{:?},{:?}",
+            &row.0, payload, metadata
+        )
+    }
+
+    Ok(())
+}
+
+pub async fn check_mysql() -> Result<(), sqlx::Error> {
+    test_insert_select_update().await?;
 
     Ok(())
 }

src/check_postgres.rs

@@ -1,15 +1,67 @@
 use log::info;
 
+use std::collections::HashMap;
+
 use sqlx::postgres::{
     PgConnectOptions,
+    PgPool,
     PgPoolOptions,
 };
 
-pub async fn check_postgres() -> Result<(), sqlx::Error> {
-    // "postgres://demo_user:demo_pass@localhost:8087/demo"
+static INSERT_EVENT: &str = "
+INSERT INTO
+    events
+    (
+        aggregate_type,
+        aggregate_id,
+        sequence,
+        payload,
+        metadata
+    )
+VALUES
+    (
+        $1,
+        $2,
+        $3,
+        $4,
+        $5
+    );
+";
+
+static SELECT_EVENTS_WITH_METADATA: &str = "
+SELECT
+    sequence,
+    payload,
+    metadata
+FROM
+    events
+WHERE
+    aggregate_type = $1
+    AND
+    aggregate_id = $2
+ORDER BY 
+    sequence;
+";
+
+static UPDATE_EVENTS: &str = "
+UPDATE
+    events
+SET
+    payload = $1,
+    metadata = $2
+WHERE
+    aggregate_type = $3
+    AND
+    aggregate_id = $4
+    AND
+    sequence = $5;
+";
+
+async fn get_pool() -> Result<PgPool, sqlx::Error> {
+    // "postgres://demo_user:demo_pass@localhost:8084/demo"
     let options = PgConnectOptions::new()
         .host("localhost")
-        .port(8087)
+        .port(8084)
         .database("demo")
         .username("demo_user")
         .password("demo_pass");
@@ -19,6 +71,12 @@ pub async fn check_postgres() -> Result<(), sqlx::Error> {
         .connect_with(options)
         .await?;
 
+    Ok(pool)
+}
+
+async fn test_connect() -> Result<(), sqlx::Error> {
+    let pool = get_pool().await?;
+
     // Make a simple query to return the given parameter
     let row: (i64,) = sqlx::query_as("SELECT $1")
         .bind(150_i64)
@@ -28,6 +86,153 @@ pub async fn check_postgres() -> Result<(), sqlx::Error> {
     assert_eq!(row.0, 150);
 
     info!("Received {}", row.0);
+    Ok(())
+}
+
+async fn test_insert_select_update() -> Result<(), sqlx::Error> {
+    let pool = get_pool().await?;
+
+    // insert
+    let mut payload = HashMap::new();
+    payload.insert("k".to_string(), "v".to_string());
+
+    let payload = match serde_json::to_value(payload) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "payload serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let mut metadata = HashMap::new();
+    metadata.insert("k1".to_string(), "v1".to_string());
+
+    let metadata = match serde_json::to_value(metadata) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "metadata serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let aggregate_type = uuid::Uuid::new_v4().to_string();
+    let aggregate_id = uuid::Uuid::new_v4().to_string();
+
+    let rows_affected = sqlx::query(INSERT_EVENT)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .bind(1)
+        .bind(payload)
+        .bind(metadata)
+        .execute(&pool)
+        .await?
+        .rows_affected();
+
+    info!(
+        "Insert affected '{}' rows",
+        rows_affected
+    );
+
+    // select
+    let rows: Vec<(
+        i64,
+        serde_json::Value,
+        serde_json::Value,
+    )> = sqlx::query_as(SELECT_EVENTS_WITH_METADATA)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .fetch_all(&pool)
+        .await?;
+
+    info!("select success");
+
+    for row in rows {
+        let payload: HashMap<String, String> =
+            serde_json::from_value(row.1).unwrap();
+        let metadata: HashMap<String, String> =
+            serde_json::from_value(row.2).unwrap();
+        info!(
+            "{},{:?},{:?}",
+            &row.0, payload, metadata
+        )
+    }
+
+    // update
+    let mut payload = HashMap::new();
+    payload.insert("k2".to_string(), "v2".to_string());
+
+    let payload = match serde_json::to_value(payload) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "payload serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let mut metadata = HashMap::new();
+    metadata.insert("k3".to_string(), "v3".to_string());
+
+    let metadata = match serde_json::to_value(metadata) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "metadata serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let rows_affected = sqlx::query(UPDATE_EVENTS)
+        .bind(payload)
+        .bind(metadata)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .bind(1)
+        .execute(&pool)
+        .await?
+        .rows_affected();
+
+    info!(
+        "Insert affected '{}' rows",
+        rows_affected
+    );
+
+    // select
+    let rows: Vec<(
+        i64,
+        serde_json::Value,
+        serde_json::Value,
+    )> = sqlx::query_as(SELECT_EVENTS_WITH_METADATA)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .fetch_all(&pool)
+        .await?;
+
+    info!("select success");
+
+    for row in rows {
+        let payload: HashMap<String, String> =
+            serde_json::from_value(row.1).unwrap();
+        let metadata: HashMap<String, String> =
+            serde_json::from_value(row.2).unwrap();
+        info!(
+            "{},{:?},{:?}",
+            &row.0, payload, metadata
+        )
+    }
+
+    Ok(())
+}
+
+pub async fn check_postgres() -> Result<(), sqlx::Error> {
+    test_connect().await?;
+    test_insert_select_update().await?;
 
     Ok(())
 }

src/check_sqlite.rs

@@ -1,14 +1,80 @@
 use log::info;
 
+use std::collections::HashMap;
+
 use sqlx::sqlite::{
     SqliteConnectOptions,
+    SqlitePool,
     SqlitePoolOptions,
 };
 
-pub async fn check_sqlite() -> Result<(), sqlx::Error> {
-    // "sqlite://test.db"
+static CREATE_TABLE: &str = "
+CREATE TABLE IF NOT EXISTS
+events
+    (
+        aggregate_type TEXT                         NOT NULL,
+        aggregate_id   TEXT                         NOT NULL,
+        sequence       bigint CHECK (sequence >= 0) NOT NULL,
+        payload        TEXT                         NOT NULL,
+        metadata       TEXT                         NOT NULL,
+        timestamp      timestamp DEFAULT (CURRENT_TIMESTAMP),
+        PRIMARY KEY (aggregate_type, aggregate_id, sequence)
+    );
+";
+
+static INSERT_EVENT: &str = "
+INSERT INTO
+    events
+    (
+        aggregate_type,
+        aggregate_id,
+        sequence,
+        payload,
+        metadata
+    )
+VALUES
+    (
+        ?,
+        ?,
+        ?,
+        ?,
+        ?
+    );
+";
+
+static SELECT_EVENTS_WITH_METADATA: &str = "
+SELECT
+    sequence,
+    payload,
+    metadata
+FROM
+    events
+WHERE
+    aggregate_type = ?
+    AND
+    aggregate_id = ?
+ORDER BY 
+    sequence;
+";
+
+static UPDATE_EVENTS: &str = "
+UPDATE
+    events
+SET
+    payload = ?,
+    metadata = ?
+WHERE
+    aggregate_type = ?
+    AND
+    aggregate_id = ?
+    AND
+    sequence = ?;
+";
+
+pub async fn get_pool() -> Result<SqlitePool, sqlx::Error> {
+    // "sqlite://demo.db"
     let options = SqliteConnectOptions::new()
-        .filename("test.db")
+        .filename("demo.db")
         .create_if_missing(true);
 
     let pool = SqlitePoolOptions::new()
@@ -16,6 +82,12 @@ pub async fn check_sqlite() -> Result<(), sqlx::Error> {
         .connect_with(options)
         .await?;
 
+    Ok(pool)
+}
+
+pub async fn test_connect() -> Result<(), sqlx::Error> {
+    let pool = get_pool().await?;
+
     // Make a simple query to return the given parameter
     let row: (i64,) = sqlx::query_as("SELECT $1")
         .bind(150_i64)
@@ -28,3 +100,162 @@ pub async fn check_sqlite() -> Result<(), sqlx::Error> {
 
     Ok(())
 }
+
+async fn test_insert_select_update() -> Result<(), sqlx::Error> {
+    let pool = get_pool().await?;
+
+    // create
+    let rows_affected = sqlx::query(CREATE_TABLE)
+        .execute(&pool)
+        .await?
+        .rows_affected();
+
+    info!(
+        "Create affected '{}' rows",
+        rows_affected
+    );
+
+    // insert
+    let mut payload = HashMap::new();
+    payload.insert("k".to_string(), "v".to_string());
+
+    let payload = match serde_json::to_value(payload) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "payload serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let mut metadata = HashMap::new();
+    metadata.insert("k1".to_string(), "v1".to_string());
+
+    let metadata = match serde_json::to_value(metadata) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "metadata serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let aggregate_type = uuid::Uuid::new_v4().to_string();
+    let aggregate_id = uuid::Uuid::new_v4().to_string();
+
+    let rows_affected = sqlx::query(INSERT_EVENT)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .bind(1)
+        .bind(payload)
+        .bind(metadata)
+        .execute(&pool)
+        .await?
+        .rows_affected();
+
+    info!(
+        "Insert affected '{}' rows",
+        rows_affected
+    );
+
+    // select
+    let rows: Vec<(
+        i64,
+        serde_json::Value,
+        serde_json::Value,
+    )> = sqlx::query_as(SELECT_EVENTS_WITH_METADATA)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .fetch_all(&pool)
+        .await?;
+
+    info!("select success");
+
+    for row in rows {
+        let payload: HashMap<String, String> =
+            serde_json::from_value(row.1).unwrap();
+        let metadata: HashMap<String, String> =
+            serde_json::from_value(row.2).unwrap();
+        info!(
+            "{},{:?},{:?}",
+            &row.0, payload, metadata
+        )
+    }
+
+    // update
+    let mut payload = HashMap::new();
+    payload.insert("k2".to_string(), "v2".to_string());
+
+    let payload = match serde_json::to_value(payload) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "payload serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let mut metadata = HashMap::new();
+    metadata.insert("k3".to_string(), "v3".to_string());
+
+    let metadata = match serde_json::to_value(metadata) {
+        Ok(x) => x,
+        Err(e) => {
+            panic!(
+                "metadata serialization error '{}'",
+                e.to_string()
+            );
+        },
+    };
+
+    let rows_affected = sqlx::query(UPDATE_EVENTS)
+        .bind(payload)
+        .bind(metadata)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .bind(1)
+        .execute(&pool)
+        .await?
+        .rows_affected();
+
+    info!(
+        "Insert affected '{}' rows",
+        rows_affected
+    );
+
+    // select
+    let rows: Vec<(
+        i64,
+        serde_json::Value,
+        serde_json::Value,
+    )> = sqlx::query_as(SELECT_EVENTS_WITH_METADATA)
+        .bind(&aggregate_type)
+        .bind(&aggregate_id)
+        .fetch_all(&pool)
+        .await?;
+
+    info!("select success");
+
+    for row in rows {
+        let payload: HashMap<String, String> =
+            serde_json::from_value(row.1).unwrap();
+        let metadata: HashMap<String, String> =
+            serde_json::from_value(row.2).unwrap();
+        info!(
+            "{},{:?},{:?}",
+            &row.0, payload, metadata
+        )
+    }
+
+    Ok(())
+}
+
+pub async fn check_sqlite() -> Result<(), sqlx::Error> {
+    test_connect().await?;
+    test_insert_select_update().await?;
+
+    Ok(())
+}

src/main.rs

@@ -37,19 +37,44 @@ async fn main() -> Result<(), sqlx::Error> {
 
     let ts = vec![
         tokio::spawn(async move {
-            check_postgres().await.unwrap();
+            match check_maria_db().await {
+                Ok(()) => {},
+                Err(e) => {
+                    panic!("MARIADB ERROR '{}'", e.to_string())
+                },
+            };
+        }),
+        // tokio::spawn(async move {
+        //     match check_ms_sql().await {
+        //         Ok(()) => {},
+        //         Err(e) => {
+        //             panic!("MSSQL ERROR '{}'", e.to_string())
+        //         },
+        //     };
+        // }),
+        tokio::spawn(async move {
+            match check_mysql().await {
+                Ok(()) => {},
+                Err(e) => {
+                    panic!("MYSQL ERROR '{}'", e.to_string())
+                },
+            };
         }),
         tokio::spawn(async move {
-            check_mysql().await.unwrap();
+            match check_postgres().await {
+                Ok(()) => {},
+                Err(e) => {
+                    panic!("POSTGRES ERROR '{}'", e.to_string())
+                },
+            };
         }),
         tokio::spawn(async move {
-            check_ms_sql().await.unwrap();
-        }),
-        tokio::spawn(async move {
-            check_maria_db().await.unwrap();
-        }),
-        tokio::spawn(async move {
-            check_sqlite().await.unwrap();
+            match check_sqlite().await {
+                Ok(()) => {},
+                Err(e) => {
+                    panic!("SQLITE ERROR '{}'", e.to_string())
+                },
+            };
         }),
     ];