notion-mcp-server/build/services/auth.js

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// src/services/auth.ts
export class AuthError extends Error {
    constructor(message) {
        super(message);
        this.name = "AuthError";
    }
}
export class EnvAuthProvider {
    async getToken() {
        const t = process.env.NOTION_TOKEN;
        if (!t) {
            throw new AuthError("Notion auth token is not configured. Set the NOTION_TOKEN environment variable in your MCP client config. To get a token, open Notion → Settings → My Settings → Personal Access Tokens → Generate (recommended), or Settings → Connections → Develop or manage integrations → New integration.");
        }
        return t;
    }
}
// Singleton — single-user assumption. v3 multi-user OAuth would require
// per-request provider dispatch (different pattern; out of scope for v2).
export const authProvider = new EnvAuthProvider();