"Cannot GET /explorer" error in composer after running the composer-rest-server command

Question

Discovering types from business network definition ...

Discovering the Returning Transactions..

Discovered types from business network definition

Generating schemas for all types in business network definition ...

Generated schemas for all types in business network definition

Adding schemas for all types to Loopback ...

Added schemas for all types to Loopback

Web server listening at: http://localhost:3000

Then when I run the above link in browser, I am getting the error as:

{"error":{"statusCode":404,"name":"Error","message":"Cannot GET /explorer/","status":404,"stack":"Error: Cannot GET /explorer/\n at raiseUrlNotFoundError (/home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/loopback/server/middleware/url-not-found.js:21:17)\n at Layer.handle [as handle_request] (/home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/layer.js:95:5)\n at trim_prefix (/home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/index.js:317:13)\n at /home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/index.js:284:7\n at Function.process_params (/home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/index.js:335:12)\n at next (/home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/index.js:275:10)\n at /home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/index.js:635:15\n at next (/home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/index.js:260:14)\n at Function.handle (/home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/index.js:174:3)\n at router (/home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/index.js:47:12)\n at Layer.handle [as handle_request] (/home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/layer.js:95:5)\n at trim_prefix (/home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/index.js:317:13)\n at /home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/index.js:284:7\n at Function.process_params (/home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/index.js:335:12)\n at next (/home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/express/lib/router/index.js:275:10)\n at urlencodedParser (/home/santosh/.nvm/versions/node/v8.12.0/lib/node_modules/composer-rest-server/node_modules/body-parser/lib/types/urlencoded.js:91:7)"}}

Answer 1

I encountered a similar error after the command composer-rest-server. I solved mine by

1. Quitting the current instance using Ctrl + C
2. Rerun the command composer-rest-server
3. Typing in Yes (or y) for the question ? Specify if you want to enable the explorer test interface:

Specifying the key for dynamic logging didn't seem to work.

Answer 2

After the command composer-rest-server, the terminal asks some questions about how to configure the server.questions asked for configuring server

For the question, Specify a key if you want to enable dynamic logging? if you don't want to specify any key then type No. Typing n or leaving blank, it takes that as key.Restart the server and then type No. Hope it works.