n8n-nodes-github-session-manager

Community node for n8n that:

• Stores App ID, Installation ID, and Private Key (PEM) via a GitHub App (JWT) credential.
• Issues a GitHub App installation access token.
• Optionally updates one githubApi credential by ID (if your n8n supports PUT /api/v1/credentials/{id}).
• Always outputs the token and its expiration, and can decorate headers for a downstream HTTP Request node.

If your n8n version does not support PUT /api/v1/credentials/{id}, the node will not update the credential (it will set updateStatus: "NOT_SUPPORTED"). Token issuance and outputs still work.

Install

npm i n8n-nodes-github-session-manager

Docker (mounting from node_modules):

environment:
  N8N_CUSTOM_EXTENSIONS: /home/node/node_modules/n8n-nodes-github-session-manager

Restart n8n.

Usage

1. Create the GitHub App (JWT) credential with:

   • Base URL (default https://api.github.com)
   • App ID
   • Installation ID
   • Private Key (PEM) (use \\n if it is a single-line string)

2. Add the GitHub Session Manager node:

   • If you only need the token, leave Update Specific githubApi Credential disabled.

   • If you want to update a specific githubApi credential:

     • Enable Update Specific githubApi Credential,
     • Set Target Credential ID,
     • Provide n8n Base URL and n8n API Key.

3. Optionally enable Decorate headers to pipe the Authorization header into a downstream HTTP Request node:

   • In the HTTP Request node, set Headers: ={{$json.headers}}.

Output

Each item returns:

{
  "githubToken": "ghs_xxx",
  "githubTokenExpiresAt": "2025-11-07T10:10:00Z",
  "updateStatus": "UPDATED | SKIPPED | NOT_SUPPORTED",
  "updatedCredentialId": "42 (if applicable)",
  "headers": {
    "Authorization": "Bearer ghs_xxx",
    "Accept": "application/vnd.github+json"
  }
}

Notes

• This package does not perform a global overwrite of all githubApi credentials. It only attempts to update one credential by ID when you enable it.
• Workflows already running usually keep using the token loaded at node start. For most workflows (less than one hour), token expiration is not an issue.