mirror of
https://github.com/logos-storage/nim-json-rpc.git
synced 2026-01-03 14:13:08 +00:00
8d79d52841
* Improve resilience against null fields * Fix client processMessage when handling error * Improve both client and server resilience against fields and elements with null value
96 lines
2.7 KiB
Nim
96 lines
2.7 KiB
Nim
# json-rpc
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# Copyright (c) 2019-2023 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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# * MIT license ([LICENSE-MIT](LICENSE-MIT))
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# at your option.
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# This file may not be copied, modified, or distributed except according to
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# those terms.
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import
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std/json,
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chronos,
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./router,
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./jsonmarshal,
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./private/jrpc_sys,
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./private/shared_wrapper,
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./errors
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export
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chronos,
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jsonmarshal,
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router
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type
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RpcServer* = ref object of RootRef
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router*: RpcRouter
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{.push gcsafe, raises: [].}
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# ------------------------------------------------------------------------------
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# Constructors
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# ------------------------------------------------------------------------------
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proc new*(T: type RpcServer): T =
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T(router: RpcRouter.init())
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# ------------------------------------------------------------------------------
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# Public functions
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# ------------------------------------------------------------------------------
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template rpc*(server: RpcServer, path: string, body: untyped): untyped =
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server.router.rpc(path, body)
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template hasMethod*(server: RpcServer, methodName: string): bool =
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server.router.hasMethod(methodName)
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proc executeMethod*(server: RpcServer,
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methodName: string,
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params: RequestParamsTx): Future[JsonString]
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{.gcsafe, raises: [JsonRpcError].} =
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let
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req = requestTx(methodName, params, RequestId(kind: riNumber, num: 0))
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reqData = JrpcSys.encode(req).JsonString
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server.router.tryRoute(reqData, result).isOkOr:
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raise newException(JsonRpcError, error)
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proc executeMethod*(server: RpcServer,
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methodName: string,
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args: JsonNode): Future[JsonString]
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{.gcsafe, raises: [JsonRpcError].} =
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let params = paramsTx(args)
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server.executeMethod(methodName, params)
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proc executeMethod*(server: RpcServer,
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methodName: string,
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args: JsonString): Future[JsonString]
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{.gcsafe, raises: [JsonRpcError].} =
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let params = try:
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let x = JrpcSys.decode(args.string, RequestParamsRx)
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x.toTx
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except SerializationError as exc:
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raise newException(JsonRpcError, exc.msg)
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server.executeMethod(methodName, params)
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# Wrapper for message processing
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proc route*(server: RpcServer, line: string): Future[string] {.gcsafe.} =
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server.router.route(line)
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# Server registration
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proc register*(server: RpcServer, name: string, rpc: RpcProc) {.gcsafe, raises: [CatchableError].} =
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## Add a name/code pair to the RPC server.
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server.router.register(name, rpc)
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proc unRegisterAll*(server: RpcServer) =
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# Remove all remote procedure calls from this server.
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server.router.clear
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{.pop.}
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