nim-websock/examples/autobahn_client.nim

92 lines
2.3 KiB
Nim

## nim-ws
## Copyright (c) 2021 Status Research & Development GmbH
## Licensed under either of
## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
## * MIT license ([LICENSE-MIT](LICENSE-MIT))
## at your option.
## This file may not be copied, modified, or distributed except according to
## those terms.
import
std/[strutils],
pkg/[chronos, chronicles, stew/byteutils],
../ws/[ws, types, frame]
const
clientFlags = {NoVerifyHost, NoVerifyServerName}
const agent = when defined tls:
"nim-ws-tls-client"
else:
"nim-ws-client"
const secure = defined tls
proc connectServer(path: string): Future[WSSession] {.async.} =
let ws = await WebSocket.connect(
host = "127.0.0.1",
port = Port(9001),
path = path,
secure=secure,
flags=clientFlags
)
return ws
proc getCaseCount(): Future[int] {.async.} =
var caseCount = 0
block:
try:
let ws = await connectServer("/getCaseCount")
let buff = await ws.recv()
let dataStr = string.fromBytes(buff)
caseCount = parseInt(dataStr)
await ws.close()
break
except WebSocketError as exc:
error "WebSocket error", exception = exc.msg
except ValueError as exc:
error "ParseInt error", exception = exc.msg
return caseCount
proc generateReport() {.async.} =
try:
trace "request autobahn server to generate report"
let ws = await connectServer("/updateReports?agent=" & agent)
while true:
let buff = await ws.recv()
if buff.len <= 0:
break
await ws.close()
except WebSocketError as exc:
error "WebSocket error", exception = exc.msg
proc main() {.async.} =
let caseCount = await getCaseCount()
trace "case count", count=caseCount
for i in 1..caseCount:
trace "runcase", no=i
let path = "/runCase?case=$1&agent=$2" % [$i, agent]
try:
let ws = await connectServer(path)
while ws.readystate != ReadyState.Closed:
# echo back
let data = await ws.recv()
let opCode = if ws.binary:
Opcode.Binary
else:
Opcode.Text
if ws.readyState == ReadyState.Closed:
break
await ws.send(data, opCode)
except WebSocketError as exc:
error "WebSocket error", exception = exc.msg
await generateReport()
waitFor main()