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Add MCP Resource Template Support for Dynamic Database Schema Discovery #123

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8d543e6
add mcp resources
DYL521 Dec 18, 2025
3530cc6
add db_connections_cache
DYL521 Dec 19, 2025
d999a6c
Merge pull request #1 from ascending-llc/feature/mcp-resources
ryohang Dec 19, 2025
394cb7b
add tabf and build to ecr
daochidq Dec 19, 2025
f1ad895
Merge pull request #2 from ascending-llc/feature/github-action
daochidq Dec 19, 2025
cf592c7
fix docker path
daochidq Dec 19, 2025
5378680
reformat
daochidq Dec 19, 2025
9476627
Merge pull request #3 from ascending-llc/feature/github-action
daochidq Dec 22, 2025
04000bc
Add dynamically_register_resources and remove list_schemas and list_o…
DYL521 Dec 23, 2025
f0a7c30
add local test env for local dev
Dec 26, 2025
81869e4
reduce the code for register resource template
Dec 26, 2025
7faa515
Merge pull request #5 from ascending-llc/local-dev
ryohang Dec 26, 2025
24f074e
remove internal build process for PR
Dec 26, 2025
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3 changes: 3 additions & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -183,3 +183,6 @@ devenv.local.nix
# pre-commit
.pre-commit-config.yaml
*.sql
.idea
!tests/db-sample-data/
!tests/db-sample-data/*.sql
51 changes: 51 additions & 0 deletions docker-compose.yml
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version: '3.8'

services:
# Sample PostgreSQL database with dvdrental sample data
sample-postgres:
image: postgres:16-alpine
container_name: sample-postgres-db
environment:
POSTGRES_USER: postgres
POSTGRES_PASSWORD: postgres
POSTGRES_DB: dvdrental
ports:
- "5432:5432"
volumes:
# Initialize with sample data from a SQL file
- ./test/db-sample-data:/docker-entrypoint-initdb.d
- postgres-data:/var/lib/postgresql/data
healthcheck:
test: ["CMD-SHELL", "pg_isready -U postgres"]
interval: 10s
timeout: 5s
retries: 5
networks:
- postgres-mcp-network

# Postgres MCP Server
postgres-mcp-server:
build:
context: .
dockerfile: Dockerfile
container_name: postgres-mcp-server
ports:
- "8000:8000"
environment:
# Connection string to the sample database
- DATABASE_URL=postgresql://postgres:postgres@sample-postgres:5432/dvdrental
depends_on:
sample-postgres:
condition: service_healthy
networks:
- postgres-mcp-network
# Override the entrypoint to connect to our sample database with SSE transport for MCP Inspector
command: ["--access-mode=unrestricted", "--transport=sse", "postgresql://postgres:postgres@sample-postgres:5432/dvdrental"]

volumes:
postgres-data:
driver: local

networks:
postgres-mcp-network:
driver: bridge
8 changes: 8 additions & 0 deletions src/postgres_mcp/moldes/model.py
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from enum import Enum


class AccessMode(str, Enum):
"""SQL access modes for the server."""

UNRESTRICTED = "unrestricted" # Unrestricted access
RESTRICTED = "restricted" # Read-only with safety features
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