Basics of auth

db/migrations/000001_create_users_table.up.sql

@@ -1,41 +1,41 @@
 create table clients
 (
-    id             uuid             default gen_random_uuid()
+    id             VARCHAR(26) not null
         constraint client_pk
             primary key,
-    client_id      varchar not null
+    client_id      varchar     not null
         constraint client_client_id_key
             unique,
-    client_secret  varchar not null,
-    name           varchar not null,
-    description    varchar          default '',
-    private_key    text    not null,
-    encryption_key text    not null,
-    grant_types    jsonb   not null default '[]'::jsonb,
-    capabilities   jsonb   not null default '[]'::jsonb,
-    confidential   boolean not null default true,
-    created_at     timestamp        default now(),
-    updated_at     timestamp        default now()
+    client_secret  varchar     not null,
+    name           varchar     not null,
+    description    varchar              default '',
+    private_key    text        not null,
+    encryption_key text        not null,
+    grant_types    jsonb       not null default '[]'::jsonb,
+    capabilities   jsonb       not null default '[]'::jsonb,
+    confidential   boolean     not null default true,
+    created_at     timestamp            default now(),
+    updated_at     timestamp            default now()
 );
 
 create table client_redirect_uris
 (
-    id           uuid default gen_random_uuid()
+    id           VARCHAR(26) not null
         constraint client_redirect_uris_pk
             primary key,
-    client_id    uuid    not null
+    client_id    VARCHAR(26) not null
         constraint client_redirect_uris_client_id_fk
             references clients
             on delete cascade,
-    redirect_uri varchar not null
+    redirect_uri varchar     not null
 );
 
 create table scopes
 (
-    id          uuid default gen_random_uuid()
+    id          VARCHAR(26) not null
         constraint scopes_pk
             primary key,
-    name        varchar not null
+    name        varchar     not null
         constraint scopes_name_key
             unique,
     description varchar
@@ -43,14 +43,14 @@ create table scopes
 
 create table client_scopes
 (
-    id        uuid default gen_random_uuid()
+    id        VARCHAR(26) not null
         constraint client_scopes_pk
             primary key,
-    client_id uuid not null
+    client_id VARCHAR(26) not null
         constraint client_scopes_client_id_fk
             references clients
             on delete cascade,
-    scope_id  uuid not null
+    scope_id  VARCHAR(26) not null
         constraint client_scopes_scope_id_fk
             references scopes
             on delete cascade,
@@ -60,29 +60,29 @@ create table client_scopes
 
 create table users
 (
-    id         uuid      default gen_random_uuid()
+    id         VARCHAR(26) not null
         constraint users_pk
             primary key,
-    first_name varchar not null,
-    last_name  varchar not null,
-    email      varchar not null
+    first_name varchar     not null,
+    last_name  varchar     not null,
+    email      varchar     not null
         constraint users_email_key
             unique,
-    password   varchar not null,
+    password   varchar     not null,
     created_at timestamp default now(),
     updated_at timestamp default now()
 );
 
 create table client_users
 (
-    id        uuid default gen_random_uuid()
+    id        VARCHAR(26) not null
         constraint client_users_pk
             primary key,
-    client_id uuid not null
+    client_id VARCHAR(26) not null
         constraint client_users_client_id_fk
             references clients
             on delete cascade,
-    user_id   uuid not null
+    user_id   VARCHAR(26) not null
         constraint client_users_user_id_fk
             references users
             on delete cascade,