Base protocol

• Request consist of header part & a content part
• Header part contains header fields
• Header field has following syntax key: header\r\n
  • Key and the values is separated by :
  • Each field is terminated by \r\n
• Header itself is terminated by \r\n
• Supported header fields are
  • Content-Length
  • Content-Type
• Content part contains the message
• Content part is using JSON-RPC to describe the request, response & notification

┌────────────────────────────────────────┐
│                Request                 │
│                                        │
│                                        │
│                                        │
│ ┌────────────────────────────────────┐ │
│ │            Header part             │ │
│ │                                    │ │
│ │ Key: Value \r\n                    │ │
│ │                                    │ │
│ │                                    │ │
│ │                                    │ │
│ └────────────────────────────────────┘ │
│                                        │
│  \r\n                                  │
│                                        │
│ ┌────────────────────────────────────┐ │
│ │            Content part            │ │
│ │ {                                  │ │
│ │  "name": value                     │ │
│ │ }                                  │ │
│ │                                    │ │
│ │                                    │ │
│ └────────────────────────────────────┘ │
│                                        │
└────────────────────────────────────────┘

Example:-

Content-Length: ...\r\n
\r\n
{
	"jsonrpc": "2.0",
	"id": 1,
	"method": "textDocument/completion",
	"params": {
		...
	}
}