feat(multitenancy): add support for multitenancy and handle the same in router, producer, consumer, drainer and analytics (#4630)

Co-authored-by: hyperswitch-bot[bot] <148525504+hyperswitch-bot[bot]@users.noreply.github.com>
Co-authored-by: Arun Raj M <jarnura47@gmail.com>

crates/common_utils/src/consts.rs

@@ -84,6 +84,9 @@ pub const DEFAULT_TTL_FOR_EXTENDED_CARD_INFO: u16 = 15 * 60;
 /// Max ttl for Extended card info in redis (in seconds)
 pub const MAX_TTL_FOR_EXTENDED_CARD_INFO: u16 = 60 * 60 * 2;
 
+/// Default tenant to be used when multitenancy is disabled
+pub const DEFAULT_TENANT: &str = "public";
+
 /// Max Length for MerchantReferenceId
 pub const MAX_ALLOWED_MERCHANT_REFERENCE_ID_LENGTH: u8 = 64;
 

crates/common_utils/src/lib.rs

@@ -2,6 +2,8 @@
 #![warn(missing_docs, missing_debug_implementations)]
 #![doc = include_str!(concat!(env!("CARGO_MANIFEST_DIR" ), "/", "README.md"))]
 
+use masking::{PeekInterface, Secret};
+
 use crate::{
     consts::ID_LENGTH,
     id_type::{CustomerId, MerchantReferenceId},
@@ -224,6 +226,27 @@ pub fn generate_time_ordered_id(prefix: &str) -> String {
     format!("{prefix}_{}", uuid::Uuid::now_v7().as_simple())
 }
 
+#[allow(missing_docs)]
+pub trait DbConnectionParams {
+    fn get_username(&self) -> &str;
+    fn get_password(&self) -> Secret<String>;
+    fn get_host(&self) -> &str;
+    fn get_port(&self) -> u16;
+    fn get_dbname(&self) -> &str;
+    fn get_database_url(&self, schema: &str) -> String {
+        format!(
+            "postgres://{}:{}@{}:{}/{}?application_name={}&options=-c search_path%3D{}",
+            self.get_username(),
+            self.get_password().peek(),
+            self.get_host(),
+            self.get_port(),
+            self.get_dbname(),
+            schema,
+            schema,
+        )
+    }
+}
+
 #[cfg(test)]
 mod nanoid_tests {
     #![allow(clippy::unwrap_used)]