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Add error header

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This commit is contained in:
Asim Aslam 2019-01-07 09:11:36 +00:00
parent 4adc31e62d
commit 5aeb28dfee
2 changed files with 34 additions and 1 deletions
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18
client/rpc_codec.go
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@ -3,6 +3,8 @@ package client
import (
"bytes"
errs "errors"
"fmt"
"strconv"
"github.com/micro/go-micro/codec"
"github.com/micro/go-micro/codec/json"
@ -112,6 +114,7 @@ func (c *rpcCodec) WriteRequest(req *request, body interface{}) error {
Method: req.ServiceMethod,
Type: codec.Request,
Header: map[string]string{
"X-Micro-Id": fmt.Sprintf("%d", req.Seq),
"X-Micro-Service": req.Service,
"X-Micro-Method": req.ServiceMethod,
},
@ -147,6 +150,21 @@ func (c *rpcCodec) ReadResponse(r *response, b interface{}) error {
r.Seq = me.Id
r.Error = me.Error
// check error in header
if len(me.Error) == 0 {
r.Error = me.Header["X-Micro-Error"]
}
// check method in header
if len(me.Method) == 0 {
r.ServiceMethod = me.Header["X-Micro-Method"]
}
if me.Id == 0 && len(me.Header["X-Micro-Id"]) > 0 {
id, _ := strconv.ParseInt(me.Header["X-Micro-Id"], 10, 64)
r.Seq = uint64(id)
}
if err != nil {
return errors.InternalServerError("go.micro.client.codec", err.Error())
}

17
server/rpc_codec.go
View File

@ -2,6 +2,8 @@ package server
import (
"bytes"
"fmt"
"strconv"
"github.com/micro/go-micro/codec"
"github.com/micro/go-micro/codec/grpc"
@ -87,9 +89,17 @@ func (c *rpcCodec) ReadRequestHeader(r *request, first bool) error {
m.Target = m.Header["X-Micro-Service"]
m.Method = m.Header["X-Micro-Method"]
// set id
if len(m.Header["X-Micro-Id"]) > 0 {
id, _ := strconv.ParseInt(m.Header["X-Micro-Id"], 10, 64)
m.Id = uint64(id)
}
// read header via codec
err := c.codec.ReadHeader(&m, codec.Request)
r.ServiceMethod = m.Method
r.Seq = m.Id
return err
}
@ -104,11 +114,16 @@ func (c *rpcCodec) WriteResponse(r *response, body interface{}, last bool) error
Id: r.Seq,
Error: r.Error,
Type: codec.Response,
Header: map[string]string{},
Header: map[string]string{
"X-Micro-Id": fmt.Sprintf("%d", r.Seq),
"X-Micro-Method": r.ServiceMethod,
"X-Micro-Error": r.Error,
},
}
if err := c.codec.Write(m, body); err != nil {
c.buf.wbuf.Reset()
m.Error = errors.Wrapf(err, "Unable to encode body").Error()
m.Header["X-Micro-Error"] = m.Error
if err := c.codec.Write(m, nil); err != nil {
return err
}