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client.go
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/
client.go
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/*
* Copyright 2024 CloudWeGo Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package client
import (
"github.com/cloudwego/kitex/pkg/kerrors"
"github.com/kitex-contrib/kitexcall/pkg/config"
"github.com/kitex-contrib/kitexcall/pkg/errors"
)
type Client interface {
Init(conf *config.Config) error
Call() error
HandleBizError(bizErr kerrors.BizStatusErrorIface) error
Output() error
GetResponse() interface{}
GetMetaBackward() map[string]string
}
func InvokeRPC(conf *config.Config) (Client, error) {
var c Client
switch conf.Type {
case config.Thrift:
c = NewThriftGeneric()
case config.Protobuf:
c = NewPbGeneric()
default:
c = NewThriftGeneric()
}
if err := c.Init(conf); err != nil {
return nil, errors.New(errors.ClientError, "Client init failed: %v", err)
}
if err := c.Call(); err != nil {
// Handle Biz error
bizErr, isBizErr := kerrors.FromBizStatusError(err)
if isBizErr {
if err := c.HandleBizError(bizErr); err != nil {
return nil, errors.New(errors.OutputError, "BizError parse error: %v", err)
}
return c, nil
}
return nil, errors.New(errors.ServerError, "RPC call failed: %v", err)
}
if err := c.Output(); err != nil {
return nil, errors.New(errors.OutputError, "Response parse error: %v", err)
}
return c, nil
}