如何将Hyperledger Composer Rest API部署至外部IP？配置修改咨询

Hey there! Let's break this down clearly so you can get your Hyperledger Composer Rest API accessible via your external IP.

That environment variable you mentioned has nothing to do with your API's deployment address. It's used to configure the database connection (like MongoDB) that the Rest API relies on to store metadata and transaction history. So you can ignore that for your current goal of adjusting the API's listening address.

There are two straightforward ways to set where the API binds:

Option 1: Specify host/port directly when starting the server #

When you run the composer-rest-server command, add the -H (host) and -p (port) flags to target your external IP. For example:

composer-rest-server -H 123.45.67.89 -p 3000 -c admin@your-business-network -n never -w true

Replace 123.45.67.89 with your actual external IP. This tells the server to bind to that specific address instead of the default localhost.

Option 2: Use environment variables for persistent configuration #

If you're using Docker, or want to set the configuration permanently, use these two environment variables:

• COMPOSER_REST_SERVER_HOST: Set this to your external IP address
• COMPOSER_REST_SERVER_PORT: Set this to your desired port (default is 3000)

Example for Linux/macOS terminals: #

export COMPOSER_REST_SERVER_HOST=123.45.67.89
export COMPOSER_REST_SERVER_PORT=3000
composer-rest-server -c admin@your-business-network -n never -w true

Example for Docker deployment: #

docker run -d -e COMPOSER_REST_SERVER_HOST=123.45.67.89 -e COMPOSER_REST_SERVER_PORT=3000 -p 3000:3000 hyperledger/composer-rest-server -c admin@your-business-network -n never -w true

• Make sure your server's firewall or cloud security group allows incoming traffic on the port you're using (3000 by default). If this is blocked, external users won't be able to reach the API.
• If your server is behind a NAT gateway or reverse proxy, double-check that port forwarding is set up correctly to route traffic to your server's internal IP and the API port.
• For production environments, we strongly recommend enabling HTTPS. You can do this by setting the COMPOSER_REST_SERVER_TLS_KEY and COMPOSER_REST_SERVER_TLS_CERT environment variables with paths to your SSL key and certificate files.

内容的提问来源于stack exchange，提问作者Morton Sykes