mirror of
https://github.com/logos-messaging/logos-messaging-nim.git
synced 2026-01-02 05:53:11 +00:00
e3dd6203ae
* deep changes in libwaku to adap to nim-ffi * start using ffi pragma in library * update some binding examples * add missing declare_lib.nim file * properly rename api files in library folder
88 lines
2.9 KiB
Nim
88 lines
2.9 KiB
Nim
import std/[options, json, strutils, net]
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import chronos, chronicles, results, confutils, confutils/std/net, ffi
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import
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waku/node/peer_manager/peer_manager,
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tools/confutils/cli_args,
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waku/factory/waku,
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waku/factory/node_factory,
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waku/factory/app_callbacks,
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waku/rest_api/endpoint/builder,
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library/declare_lib
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proc createWaku(
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configJson: cstring, appCallbacks: AppCallbacks = nil
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): Future[Result[Waku, string]] {.async.} =
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var conf = defaultWakuNodeConf().valueOr:
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return err("Failed creating node: " & error)
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var errorResp: string
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var jsonNode: JsonNode
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try:
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jsonNode = parseJson($configJson)
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except Exception:
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return err(
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"exception in createWaku when calling parseJson: " & getCurrentExceptionMsg() &
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" configJson string: " & $configJson
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)
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for confField, confValue in fieldPairs(conf):
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if jsonNode.contains(confField):
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# Make sure string doesn't contain the leading or trailing " character
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let formattedString = ($jsonNode[confField]).strip(chars = {'\"'})
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# Override conf field with the value set in the json-string
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try:
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confValue = parseCmdArg(typeof(confValue), formattedString)
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except Exception:
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return err(
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"exception in createWaku when parsing configuration. exc: " &
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getCurrentExceptionMsg() & ". string that could not be parsed: " &
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formattedString & ". expected type: " & $typeof(confValue)
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)
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# Don't send relay app callbacks if relay is disabled
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if not conf.relay and not appCallbacks.isNil():
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appCallbacks.relayHandler = nil
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appCallbacks.topicHealthChangeHandler = nil
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# TODO: Convert `confJson` directly to `WakuConf`
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var wakuConf = conf.toWakuConf().valueOr:
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return err("Configuration error: " & $error)
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wakuConf.restServerConf = none(RestServerConf) ## don't want REST in libwaku
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let wakuRes = (await Waku.new(wakuConf, appCallbacks)).valueOr:
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error "waku initialization failed", error = error
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return err("Failed setting up Waku: " & $error)
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return ok(wakuRes)
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registerReqFFI(CreateNodeRequest, ctx: ptr FFIContext[Waku]):
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proc(
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configJson: cstring, appCallbacks: AppCallbacks
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): Future[Result[string, string]] {.async.} =
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ctx.myLib[] = (await createWaku(configJson, cast[AppCallbacks](appCallbacks))).valueOr:
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error "CreateNodeRequest failed", error = error
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return err($error)
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return ok("")
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proc waku_start(
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ctx: ptr FFIContext[Waku], callback: FFICallBack, userData: pointer
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) {.ffi.} =
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(await startWaku(ctx[].myLib)).isOkOr:
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error "START_NODE failed", error = error
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return err("failed to start: " & $error)
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return ok("")
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proc waku_stop(
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ctx: ptr FFIContext[Waku], callback: FFICallBack, userData: pointer
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) {.ffi.} =
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try:
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await ctx.myLib[].stop()
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except Exception as exc:
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error "STOP_NODE failed", error = exc.msg
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return err("failed to stop: " & exc.msg)
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return ok("")
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