58 lines
1.7 KiB
Go
58 lines
1.7 KiB
Go
//Package rpc provides abstract rpc server
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//
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//Copyright (C) 2022 Alexander Kiryukhin <i@neonxp.dev>
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//
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//This file is part of go.neonxp.ru/jsonrpc2 project.
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//
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//This program is free software: you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation, either version 3 of the License, or
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//(at your option) any later version.
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//
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//This program is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//
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//You should have received a copy of the GNU General Public License
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//along with this program. If not, see <https://www.gnu.org/licenses/>.
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package rpc
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import (
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"context"
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"encoding/json"
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)
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func H[RQ any, RS any](handler func(context.Context, *RQ) (RS, error)) HandlerFunc {
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return func(ctx context.Context, in json.RawMessage) (json.RawMessage, error) {
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req := new(RQ)
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if err := json.Unmarshal(in, req); err != nil {
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return nil, ErrorFromCode(ErrCodeParseError)
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}
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resp, err := handler(ctx, req)
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if err != nil {
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return nil, Error{
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Code: ErrUser,
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Message: err.Error(),
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}
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}
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return json.Marshal(resp)
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}
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}
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// HS is a simple generic wrapper for rpc handlers without any request params.
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func HS[RS any](handler func(context.Context) (RS, error)) HandlerFunc {
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return func(ctx context.Context, in json.RawMessage) (json.RawMessage, error) {
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resp, err := handler(ctx)
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if err != nil {
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return nil, Error{
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Code: ErrUser,
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Message: err.Error(),
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}
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}
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return json.Marshal(resp)
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}
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}
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type HandlerFunc func(context.Context, json.RawMessage) (json.RawMessage, error)
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