-
Notifications
You must be signed in to change notification settings - Fork 0
/
endpoints.go
89 lines (74 loc) · 2.03 KB
/
endpoints.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
package wamp
import (
"errors"
"log/slog"
)
var (
ErrorApplication = errors.New("application error")
ErrorInvalidPayload = errors.New("invalid payload")
)
type ProcedureToPublish[I any] func(I, PublishEvent)
type publishEventEndpoint func(PublishEvent)
func NewPublishEventEndpoint[I any](
procedure ProcedureToPublish[I],
__logger *slog.Logger,
) publishEventEndpoint {
logger := __logger.With("name", "PublishEventEndpoint")
return func(publishEvent PublishEvent) {
payload, e := ReadPayload[I](publishEvent)
if e == nil {
finally := func() {
e := recover()
if e == nil {
logger.Debug("endpoint execution success")
} else {
logger.Debug("during endpoint execution", "error", e)
}
}
defer finally()
procedure(payload, publishEvent)
} else {
logger.Warn("during serialize payload", "error", e)
}
}
}
type ProcedureToCall[I, O any] func(I, CallEvent) (O, error)
type callEventEndpoint func(CallEvent) ReplyEvent
func NewCallEventEndpoint[I, O any](
procedure ProcedureToCall[I, O],
__logger *slog.Logger,
) callEventEndpoint {
logger := __logger.With("name", "CallEventEndpoint")
return func(callEvent CallEvent) (replyEvent ReplyEvent) {
payload, e := ReadPayload[I](callEvent)
if e != nil {
logger.Warn("during serialize payload", "error", e)
replyEvent = NewErrorEvent(callEvent, ErrorInvalidPayload)
return replyEvent
}
var (
returnValue O
returnError error
)
finally := func() {
r := recover()
if r == nil {
logger.Debug("endpoint execution success")
switch e := returnError.(type) {
case nil:
replyEvent = NewReplyEvent[O](callEvent, returnValue)
case *generatorExitException:
replyEvent = NewErrorEvent(e.Source, e)
default:
replyEvent = NewErrorEvent(callEvent, returnError)
}
} else {
logger.Debug("during endpoint execution", "error", r)
replyEvent = NewErrorEvent(callEvent, ErrorApplication)
}
}
defer finally()
returnValue, returnError = procedure(payload, callEvent)
return replyEvent
}
}