I am attempting to send JSON to Clangd on my desktop using Python. I see in the terminal window that Clangd says:
I[15:52:46.580] Warning: Missing Content-Length header, or zero-length message.
"Content-Length": 53
{
"jsonrpc": "2.0",
"id": 1,
"method": "exit"
}
But that is not the case. Python code:
import argparse
import sys
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument("-p", "--process_num", type=int, help="Clangd process number", required=True)
parser.add_argument("-d", "--dry_run", action="store_true", help="Dry run")
args = parser.parse_args()
filepath = f"/proc/{args.process_num}/fd/0"
my_content = """\
"Content-Length": 53
{
"jsonrpc": "2.0",
"id": 1,
"method": "exit"
}"""
if args.dry_run:
print(my_content.encode("utf-8"))
sys.exit(0)
with open(filepath, 'wb') as f:
f.write(my_content.encode("utf-8"))
Is there something in the formatting I am missing?
Answer
You're not supposed to quote the "Content-Length" , just send Content-Length: 53
Make sure you're using \r\n for the newlines too in the header part, as shown in the Language Server Protocol . Make sure your Content-Length is right as well, the json you posted here isn't 53 bytes,