Anthony Merlo
244e141053
Rust MCP server using rmcp SDK with streamable HTTP transport. - Config from env vars (bind, api_key, db_path, off_user_agent) - SQLite schema: products (FTS5), entries, daily_goal, weight_log - OFF API client: Search-a-licious + v3 barcode + SQLite caching - 13 MCP tools: search_food, get_food_by_barcode, log_food, log_custom_food, delete_entry, daily_summary, history, list_entries, get_goals, set_goals, log_weight, weight_history, bulk_import (stub) - 14 tracked nutrients (gout + hypertension aware) - Bearer token auth middleware - Smoke tested: health, initialize, tools/list, get_goals, daily_summary Closes nutrition-mcp-dfl
74 lines
No EOL
2.2 KiB
Rust
74 lines
No EOL
2.2 KiB
Rust
use std::path::PathBuf;
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use anyhow::{Result, bail};
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/// Server configuration loaded from environment variables.
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#[derive(Debug, Clone)]
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pub struct Config {
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/// Bind address, e.g. "0.0.0.0:9432"
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pub bind: String,
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/// API key for Bearer auth
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pub api_key: String,
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/// Path to SQLite database file
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pub db_path: PathBuf,
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/// User-Agent header for OpenFood Facts API requests
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pub off_user_agent: String,
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}
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impl Config {
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pub fn from_env() -> Result<Self> {
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let bind = std::env::var("NUTRITION_MCP_BIND")
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.unwrap_or_else(|_| "0.0.0.0:9432".to_string());
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let api_key = std::env::var("NUTRITION_MCP_API_KEY")
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.unwrap_or_else(|_| {
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tracing::warn!("NUTRITION_MCP_API_KEY not set — generating a random key");
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uuid::Uuid::new_v4().to_string()
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});
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let db_path = std::env::var("NUTRITION_MCP_DB_PATH")
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.map(PathBuf::from)
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.unwrap_or_else(|_| {
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let mut p = dirs_data_path();
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p.push("nutrition");
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p.push("nutrition.db");
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p
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});
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let off_user_agent = std::env::var("NUTRITION_MCP_OFF_USER_AGENT")
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.unwrap_or_else(|_| {
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"NutritionMCP/0.1.0 (personal use)".to_string()
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});
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if api_key.is_empty() {
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bail!("NUTRITION_MCP_API_KEY must not be empty");
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}
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Ok(Self {
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bind,
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api_key,
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db_path,
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off_user_agent,
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})
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}
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/// Create the parent directory of db_path if it doesn't exist.
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pub fn ensure_db_dir(&self) -> Result<()> {
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if let Some(parent) = self.db_path.parent() {
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std::fs::create_dir_all(parent)?;
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}
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Ok(())
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}
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}
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fn dirs_data_path() -> PathBuf {
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// Prefer XDG_DATA_HOME, fall back to ~/.local/share
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std::env::var("XDG_DATA_HOME")
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.map(PathBuf::from)
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.unwrap_or_else(|_| {
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let home = std::env::var("HOME").unwrap_or_else(|_| ".".to_string());
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let mut p = PathBuf::from(home);
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p.push(".local");
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p.push("share");
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p
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})
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} |