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Open-IM-Server/internal/api_to_rpc/api.go

138 lines
5.0 KiB

package common
import (
"Open_IM/pkg/common/trace_log"
"Open_IM/pkg/getcdv3"
utils "github.com/OpenIMSDK/open_utils"
"github.com/gin-gonic/gin"
"google.golang.org/grpc/metadata"
"reflect"
)
func ApiToRpc(c *gin.Context, apiReq, apiResp interface{}, rpcName string, fn interface{}, rpcFuncName string, tokenFunc func(token string, operationID string) (string, error)) {
operationID := c.GetHeader("operationID")
nCtx := trace_log.NewCtx(c, rpcFuncName)
defer trace_log.ShowLog(nCtx)
if err := c.BindJSON(apiReq); err != nil {
trace_log.WriteErrorResponse(nCtx, "BindJSON", err)
return
}
trace_log.SetOperationID(nCtx, operationID)
trace_log.SetContextInfo(nCtx, "BindJSON", nil, "params", apiReq)
etcdConn, err := getcdv3.GetConn(c, rpcName)
if err != nil {
trace_log.WriteErrorResponse(nCtx, "GetDefaultConn", err)
return
}
rpc := reflect.ValueOf(fn).Call([]reflect.Value{
reflect.ValueOf(etcdConn),
})[0].MethodByName(rpcFuncName) // rpc func
rpcReqPtr := reflect.New(rpc.Type().In(1).Elem()) // *req参数
var opUserID string
if tokenFunc != nil {
var err error
opUserID, err = tokenFunc(c.GetHeader("token"), operationID)
if err != nil {
trace_log.WriteErrorResponse(nCtx, "TokenFunc", err)
return
}
}
if err := utils.CopyStructFields(rpcReqPtr.Interface(), apiReq); err != nil {
trace_log.WriteErrorResponse(nCtx, "CopyStructFields_RpcReq", err)
return
}
md := metadata.Pairs("operationID", operationID, "opUserID", opUserID)
respArr := rpc.Call([]reflect.Value{
reflect.ValueOf(metadata.NewOutgoingContext(c, md)), // context.Context
rpcReqPtr, // rpc apiReq
}) // respArr => (apiResp, error)
if !respArr[1].IsNil() { // rpc err != nil
err := respArr[1].Interface().(error)
trace_log.WriteErrorResponse(nCtx, rpcFuncName, err, "rpc req", rpcReqPtr.Interface())
return
}
rpcResp := respArr[0].Elem()
trace_log.SetContextInfo(nCtx, rpcFuncName, nil, "rpc req", rpcReqPtr.Interface(), "resp", rpcResp.Interface())
if apiResp != nil {
if err := utils.CopyStructFields(apiResp, rpcResp.Interface()); err != nil {
trace_log.WriteErrorResponse(nCtx, "CopyStructFields_RpcResp", err)
return
}
}
trace_log.SetSuccess(nCtx, rpcFuncName, apiResp)
}
//func ApiToRpc(c *gin.Context, apiReq, apiResp interface{}, rpcName string, fn interface{}, rpcFuncName string, tokenFunc func(token string, operationID string) (string, error)) {
// nCtx := trace_log.NewCtx(c, rpcFuncName)
// defer trace_log.ShowLog(nCtx)
// if err := c.BindJSON(apiReq); err != nil {
// trace_log.WriteErrorResponse(nCtx, "BindJSON", err)
// return
// }
// reqValue := reflect.ValueOf(apiReq).Elem()
// operationID := reqValue.FieldByName("OperationID").String()
// trace_log.SetOperationID(nCtx, operationID)
// trace_log.SetContextInfo(nCtx, "BindJSON", nil, "params", apiReq)
// etcdConn, err := utils2.GetConn(c, rpcName)
// if err != nil {
// trace_log.WriteErrorResponse(nCtx, "GetDefaultConn", err)
// return
// }
// rpc := reflect.ValueOf(fn).Call([]reflect.Value{
// reflect.ValueOf(etcdConn),
// })[0].MethodByName(rpcFuncName) // rpc func
// rpcReqPtr := reflect.New(rpc.Type().In(1).Elem()) // *req参数
// var opUserID string
// if tokenFunc != nil {
// var err error
// opUserID, err = tokenFunc(c.GetHeader("token"), operationID)
// if err != nil {
// trace_log.WriteErrorResponse(nCtx, "TokenFunc", err)
// return
// }
// }
// if opID := rpcReqPtr.Elem().FieldByName("OperationID"); opID.IsValid() {
// opID.SetString(operationID)
// if opU := rpcReqPtr.Elem().FieldByName("OpUserID"); opU.IsValid() {
// opU.SetString(opUserID)
// }
// } else {
// op := rpcReqPtr.Elem().FieldByName("Operation").Elem()
// op.FieldByName("OperationID").SetString(operationID)
// op.FieldByName("OpUserID").SetString(opUserID)
// }
// if err := utils.CopyStructFields(rpcReqPtr.Interface(), apiReq); err != nil {
// trace_log.WriteErrorResponse(nCtx, "CopyStructFields_RpcReq", err)
// return
// }
// respArr := rpc.Call([]reflect.Value{
// reflect.ValueOf(context.Context(c)), // context.Context
// rpcReqPtr, // rpc apiReq
// }) // respArr => (apiResp, error)
// if !respArr[1].IsNil() { // rpc err != nil
// err := respArr[1].Interface().(error)
// trace_log.WriteErrorResponse(nCtx, rpcFuncName, err, "rpc req", rpcReqPtr.Interface())
// return
// }
// rpcResp := respArr[0].Elem()
// trace_log.SetContextInfo(nCtx, rpcFuncName, nil, "rpc req", rpcReqPtr.Interface(), "resp", rpcResp.Interface())
// commonResp := rpcResp.FieldByName("CommonResp").Elem()
// errCodeVal := commonResp.FieldByName("ErrCode")
// errMsgVal := commonResp.FieldByName("ErrMsg").Interface().(string)
// errCode := errCodeVal.Interface().(int32)
// if errCode != 0 {
// trace_log.WriteErrorResponse(nCtx, "RpcErrCode", &constant.ErrInfo{
// ErrCode: errCode,
// ErrMsg: errMsgVal,
// })
// return
// }
// if apiResp != nil {
// if err := utils.CopyStructFields(apiResp, rpcResp.Interface()); err != nil {
// trace_log.WriteErrorResponse(nCtx, "CopyStructFields_RpcResp", err)
// return
// }
// }
// trace_log.SetSuccess(nCtx, rpcFuncName, apiResp)
//}