feat: email sending and invites backend code

apps/api/config/config.py

@@ -51,12 +51,19 @@ class HostingConfig(BaseModel):
     content_delivery: ContentDeliveryConfig
 
 
+class MailingConfig(BaseModel):
+    resend_api_key: str
+    system_email_address: str
+
+
 class DatabaseConfig(BaseModel):
     sql_connection_string: Optional[str]
 
+
 class RedisConfig(BaseModel):
     redis_connection_string: Optional[str]
 
+
 class LearnHouseConfig(BaseModel):
     site_name: str
     site_description: str
@@ -67,6 +74,7 @@ class LearnHouseConfig(BaseModel):
     redis_config: RedisConfig
     security_config: SecurityConfig
     ai_config: AIConfig
+    mailing_config: MailingConfig
 
 
 def get_learnhouse_config() -> LearnHouseConfig:
@@ -113,6 +121,7 @@ def get_learnhouse_config() -> LearnHouseConfig:
     env_use_default_org = os.environ.get("LEARNHOUSE_USE_DEFAULT_ORG")
     env_allowed_origins = os.environ.get("LEARNHOUSE_ALLOWED_ORIGINS")
     env_cookie_domain = os.environ.get("LEARNHOUSE_COOKIE_DOMAIN")
+
     # Allowed origins should be a comma separated string
     if env_allowed_origins:
         env_allowed_origins = env_allowed_origins.split(",")
@@ -182,14 +191,6 @@ def get_learnhouse_config() -> LearnHouseConfig:
     ).get("sql_connection_string")
 
     
-
-    # Redis config 
-    env_redis_connection_string = os.environ.get("LEARNHOUSE_REDIS_CONNECTION_STRING")
-    redis_connection_string = env_redis_connection_string or yaml_config.get(
-        "redis_config", {}
-    ).get("redis_connection_string")
-
-
     # AI Config
     env_openai_api_key = os.environ.get("LEARNHOUSE_OPENAI_API_KEY")
     env_is_ai_enabled = os.environ.get("LEARNHOUSE_IS_AI_ENABLED")
@@ -200,6 +201,22 @@ def get_learnhouse_config() -> LearnHouseConfig:
         "is_ai_enabled"
     )
 
+    # Redis config
+    env_redis_connection_string = os.environ.get("LEARNHOUSE_REDIS_CONNECTION_STRING")
+    redis_connection_string = env_redis_connection_string or yaml_config.get(
+        "redis_config", {}
+    ).get("redis_connection_string")
+
+    # Mailing config
+    env_resend_api_key = os.environ.get("LEARNHOUSE_RESEND_API_KEY")
+    env_system_email_address = os.environ.get("LEARNHOUSE_SYSTEM_EMAIL_ADDRESS")
+    resend_api_key = env_resend_api_key or yaml_config.get("mailing_config", {}).get(
+        "resend_api_key"
+    )
+    system_email_address = env_system_email_address or yaml_config.get(
+        "mailing_config", {}
+    ).get("system_email_adress")
+
     # Sentry config
     # check if the sentry config is provided in the YAML file
     sentry_config_verif = (
@@ -262,6 +279,9 @@ def get_learnhouse_config() -> LearnHouseConfig:
         security_config=SecurityConfig(auth_jwt_secret_key=auth_jwt_secret_key),
         ai_config=ai_config,
         redis_config=RedisConfig(redis_connection_string=redis_connection_string),
+        mailing_config=MailingConfig(
+            resend_api_key=resend_api_key, system_email_address=system_email_address
+        ),
     )
 
     return config

apps/api/config/config.yaml

@@ -24,6 +24,10 @@ hosting_config:
       bucket_name: ""
       endpoint_url: ""
 
+mailing_config:
+  resend_api_key: ""
+  system_email_adress: ""
+
 database_config:
   sql_connection_string: postgresql://learnhouse:learnhouse@db:5432/learnhouse
 

apps/api/poetry.lock

@@ -2510,6 +2510,20 @@ requests = ">=2.0.0"
 [package.extras]
 rsa = ["oauthlib[signedtoken] (>=3.0.0)"]
 
+[[package]]
+name = "resend"
+version = "0.7.2"
+description = "Resend Python SDK"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "resend-0.7.2-py2.py3-none-any.whl", hash = "sha256:4f16711e11b007da7f8826283af6cdc34c99bd77c1dfad92afe9466a90d06c61"},
+    {file = "resend-0.7.2.tar.gz", hash = "sha256:bb10522a5ef1235b6cc2d74902df39c4863ac12b89dc48b46dd5c6f980574622"},
+]
+
+[package.dependencies]
+requests = "2.31.0"
+
 [[package]]
 name = "rsa"
 version = "4.9"
@@ -3495,4 +3509,4 @@ testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "p
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.12"
-content-hash = "909bc8706c915f93e93d0d27bcc69db648213249ecd53e293283a1a8369e9692"
+content-hash = "7443226d64e2ee6b0844e1f85d7c01b20c0bdb78e32f84875aa71ce956e141d3"

apps/api/pyproject.toml

@@ -35,6 +35,7 @@ python-dotenv = "^1.0.0"
 redis = "^5.0.1"
 langchain-community = "^0.0.11"
 langchain-openai = "^0.0.2.post1"
+resend = "^0.7.2"
 
 
 [build-system]

apps/api/src/routers/orgs.py

@@ -174,6 +174,7 @@ async def api_get_invite_codes(
     """
     return await get_invite_codes(request, org_id, current_user, db_session)
 
+
 @router.get("/{org_id}/invites/code/{invite_code}")
 async def api_get_invite_code(
     request: Request,
@@ -186,7 +187,7 @@ async def api_get_invite_code(
     Get invite code
     """
     print(f"org_id: {org_id}, invite_code: {invite_code}")
-    return await get_invite_code(request, org_id,invite_code, current_user, db_session)
+    return await get_invite_code(request, org_id, invite_code, current_user, db_session)
 
 
 @router.delete("/{org_id}/invites/{org_invite_code_uuid}")
@@ -209,14 +210,17 @@ async def api_delete_invite_code(
 async def api_invite_batch_users(
     request: Request,
     org_id: int,
-    users: str,
+    emails: str,
+    invite_code_uuid: str,
     current_user: PublicUser = Depends(get_current_user),
     db_session: Session = Depends(get_db_session),
 ):
     """
-    Invite batch users
+    Invite batch users by emails
     """
-    return await invite_batch_users(request, org_id, users, db_session, current_user)
+    return await invite_batch_users(
+        request, org_id, emails, invite_code_uuid, db_session, current_user
+    )
 
 
 @router.get("/{org_id}/invites/users")
@@ -231,6 +235,7 @@ async def api_get_org_users_invites(
     """
     return await get_list_of_invited_users(request, org_id, db_session, current_user)
 
+
 @router.delete("/{org_id}/invites/users/{email}")
 async def api_delete_org_users_invites(
     request: Request,

apps/api/src/services/email/utils.py

@@ -0,0 +1,19 @@
+import resend
+from config.config import get_learnhouse_config
+
+def send_email(to: str, subject: str, body: str):
+    lh_config = get_learnhouse_config()
+    params = {
+        "from": f"LearnHouse <"
+        + lh_config.mailing_config.system_email_address
+        + ">",
+        "to": [to],
+        "subject": subject,
+        "html": body,
+    }
+
+    
+    resend.api_key = lh_config.mailing_config.resend_api_key
+    email = resend.Emails.send(params)
+
+    return email

apps/api/src/services/orgs/invites.py

@@ -5,11 +5,13 @@ import uuid
 import redis
 from datetime import datetime, timedelta
 from sqlmodel import Session, select
+from src.services.email.utils import send_email
 from config.config import get_learnhouse_config
 from src.services.orgs.orgs import rbac_check
-from src.db.users import AnonymousUser, PublicUser
+from src.db.users import AnonymousUser, PublicUser, UserRead
 from src.db.organizations import (
     Organization,
+    OrganizationRead,
 )
 from fastapi import HTTPException, Request
 
@@ -142,6 +144,7 @@ async def get_invite_codes(
 
     return invite_codes_list
 
+
 async def get_invite_code(
     request: Request,
     org_id: int,
@@ -182,7 +185,6 @@ async def get_invite_code(
             detail="Could not connect to Redis",
         )
 
-
     # Get invite code
     invite_code = r.keys(f"org_invite_code_*:org:{org.org_uuid}:code:{invite_code}")  # type: ignore
 
@@ -198,7 +200,6 @@ async def get_invite_code(
     return invite_code
 
 
-
 async def delete_invite_code(
     request: Request,
     org_id: int,
@@ -251,3 +252,57 @@ async def delete_invite_code(
         )
 
     return keys
+
+
+def send_invite_email(
+    org: OrganizationRead,
+    invite_code_uuid: str,
+    user: UserRead,
+    email: str,
+):
+    LH_CONFIG = get_learnhouse_config()
+    redis_conn_string = LH_CONFIG.redis_config.redis_connection_string
+
+    if not redis_conn_string:
+        raise HTTPException(
+            status_code=500,
+            detail="Redis connection string not found",
+        )
+
+    # Connect to Redis
+    r = redis.Redis.from_url(redis_conn_string)
+
+    if not r:
+        raise HTTPException(
+            status_code=500,
+            detail="Could not connect to Redis",
+        )
+
+    # Get invite code
+    invite = r.keys(f"{invite_code_uuid}:org:{org.org_uuid}:code:*")  # type: ignore
+
+    # Send email
+    if invite:
+        invite = r.get(invite[0])
+        invite = json.loads(invite)
+
+        # send email
+        send_email(
+            to=email,
+            subject=f"You have been invited to {org.name}",
+            body=f"""
+<html>
+    <body>
+        <p>Hello {email}</p>
+        <p>You have been invited to {org.name} by @{user.username}. Your invite code is {invite['invite_code']}.</p>
+        <p>Click <a href="{org.slug}.learnhouse.io/signup?inviteCode={invite['invite_code']}">here</a> to sign up.</p>
+        <p>Thank you</p>
+    </body>
+</html>
+""",
+        )
+
+        return True
+
+    else:
+        return False

apps/api/src/services/orgs/users.py

@@ -5,6 +5,7 @@ import logging
 import redis
 from fastapi import HTTPException, Request
 from sqlmodel import Session, select
+from src.services.orgs.invites import send_invite_email
 from config.config import get_learnhouse_config
 from src.services.orgs.orgs import rbac_check
 from src.db.roles import Role, RoleRead
@@ -12,6 +13,7 @@ from src.db.users import AnonymousUser, PublicUser, User, UserRead
 from src.db.user_organizations import UserOrganization
 from src.db.organizations import (
     Organization,
+    OrganizationRead,
     OrganizationUser,
 )
 
@@ -259,6 +261,10 @@ async def invite_batch_users(
             detail="Organization not found",
         )
 
+    # get User sender
+    statement = select(User).where(User.id == current_user.id)
+    user = db_session.exec(statement).first()
+
     # RBAC check
     await rbac_check(request, org.org_uuid, current_user, "create", db_session)
 
@@ -287,12 +293,22 @@ async def invite_batch_users(
             # skip this user
             continue
 
+        org = OrganizationRead.from_orm(org)
+        user = UserRead.from_orm(user)
+
+        isEmailSent = send_invite_email(
+            org,
+            invite_code_uuid,
+            user,
+            email,
+        )
+
         invited_user_object = {
             "email": email,
             "org_id": org.id,
             "invite_code_uuid": invite_code_uuid,
             "pending": True,
-            "email_sent": False,
+            "email_sent": isEmailSent,
             "expires": ttl,
             "created_at": datetime.now().isoformat(),
             "created_by": current_user.user_uuid,