ls

This command starts the language server.

The language server and the client communicate with each other via input and output streams. In the case of the language server, these are stdin and stdout. Log messages are sent over stderr.

Both the client and the server send and receive JSON-RPC 2.0 messages. The supported message types are listed in the language Server section of the architecture chapter.

The language server is designed for use by the dbLinter components, which start and stop it automatically. You should never need to start the language server manually.

Syntax

dblinter ls

Example

The next shell command sends a shutdown message, followed by an exit message, via stdin to a freshly started dbLinter language server. It then redirects the stdout to the lsp-stdout.txt and the stderr to the lsp-stderr.txt.

(
    printf "%b" 'Content-Length: 44\n\n{"jsonrpc":"2.0","id":1,"method":"shutdown"}'
    printf "%b" 'Content-Length: 33\n\n{"jsonrpc":"2.0","method":"exit"}'
) | dblinter ls > lsp-stdout.txt 2> lsp-stderr.txt

The lsp-stdout.txt file contains the result message of the successful shutdown.

lsp-stdout.txt

Content-Length: 36

{"jsonrpc":"2.0","id":1,"result":{}}

And the lsp-stderr.txt file contains the log messages produced by the language server.

lsp-stderr.txt

2025-12-14 10:41:24.848 [Info ] Starting dbLinter Language Server.
2025-12-14 10:41:25.128 [Info ] connect.
2025-12-14 10:41:25.133 [Info ] shutdown.