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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
package kong
import (
"context"
"encoding/json"
"errors"
"fmt"
)
// TargetService handles Targets in Kong.
type TargetService service
// TODO foreign key can be read directly from the embedded key itself
// upstreamNameOrID need not be an explicit parameter.
// Create creates a Target in Kong under upstreamID.
// If an ID is specified, it will be used to
// create a target in Kong, otherwise an ID
// is auto-generated.
func (s *TargetService) Create(ctx context.Context,
upstreamNameOrID *string, target *Target) (*Target, error) {
if isEmptyString(upstreamNameOrID) {
return nil, errors.New("upstreamNameOrID can not be nil")
}
queryPath := "/upstreams/" + *upstreamNameOrID + "/targets"
method := "POST"
// if target.ID != nil {
// queryPath = queryPath + "/" + *target.ID
// method = "PUT"
// }
req, err := s.client.NewRequest(method, queryPath, nil, target)
if err != nil {
return nil, err
}
var createdTarget Target
_, err = s.client.Do(ctx, req, &createdTarget)
if err != nil {
return nil, err
}
return &createdTarget, nil
}
// Delete deletes a Target in Kong
func (s *TargetService) Delete(ctx context.Context,
upstreamNameOrID *string, targetOrID *string) error {
if isEmptyString(upstreamNameOrID) {
return errors.New("upstreamNameOrID cannot be nil for Get operation")
}
if isEmptyString(targetOrID) {
return errors.New("targetOrID cannot be nil for Delete operation")
}
endpoint := fmt.Sprintf("/upstreams/%v/targets/%v",
*upstreamNameOrID, *targetOrID)
req, err := s.client.NewRequest("DELETE", endpoint, nil, nil)
if err != nil {
return err
}
_, err = s.client.Do(ctx, req, nil)
return err
}
// List fetches a list of Targets in Kong.
// opt can be used to control pagination.
func (s *TargetService) List(ctx context.Context,
upstreamNameOrID *string, opt *ListOpt) ([]*Target, *ListOpt, error) {
if isEmptyString(upstreamNameOrID) {
return nil, nil, errors.New(
"upstreamNameOrID cannot be nil for Get operation")
}
data, next, err := s.client.list(ctx,
"/upstreams/"+*upstreamNameOrID+"/targets", opt)
if err != nil {
return nil, nil, err
}
var targets []*Target
for _, object := range data {
b, err := object.MarshalJSON()
if err != nil {
return nil, nil, err
}
var target Target
err = json.Unmarshal(b, &target)
if err != nil {
return nil, nil, err
}
targets = append(targets, &target)
}
return targets, next, nil
}
// ListAll fetches all Targets in Kong for an upstream.
func (s *TargetService) ListAll(ctx context.Context,
upstreamNameOrID *string) ([]*Target, error) {
var targets, data []*Target
var err error
opt := &ListOpt{Size: pageSize}
for opt != nil {
data, opt, err = s.List(ctx, upstreamNameOrID, opt)
if err != nil {
return nil, err
}
targets = append(targets, data...)
}
return targets, nil
}
// MarkHealthy marks target belonging to upstreamNameOrID as healthy in
// Kong's load balancer.
func (s *TargetService) MarkHealthy(ctx context.Context,
upstreamNameOrID *string, target *Target) error {
if target == nil {
return errors.New("cannot set health status for a nil target")
}
if isEmptyString(target.ID) && isEmptyString(target.Target) {
return errors.New("need at least one of target or ID to" +
" set health status")
}
if isEmptyString(upstreamNameOrID) {
return errors.New("upstreamNameOrID cannot be nil " +
"for updating health check")
}
tid := target.ID
if target.ID == nil {
tid = target.Target
}
endpoint := fmt.Sprintf("/upstreams/%v/targets/%v/healthy",
*upstreamNameOrID, *tid)
req, err := s.client.NewRequest("POST", endpoint, nil, nil)
if err != nil {
return err
}
_, err = s.client.Do(ctx, req, nil)
return err
}
// MarkUnhealthy marks target belonging to upstreamNameOrID as unhealthy in
// Kong's load balancer.
func (s *TargetService) MarkUnhealthy(ctx context.Context,
upstreamNameOrID *string, target *Target) error {
if target == nil {
return errors.New("cannot set health status for a nil target")
}
if isEmptyString(target.ID) && isEmptyString(target.Target) {
return errors.New("need at least one of target or ID to" +
" set health status")
}
if isEmptyString(upstreamNameOrID) {
return errors.New("upstreamNameOrID cannot be nil " +
"for updating health check")
}
tid := target.ID
if target.ID == nil {
tid = target.Target
}
endpoint := fmt.Sprintf("/upstreams/%v/targets/%v/unhealthy",
*upstreamNameOrID, *tid)
req, err := s.client.NewRequest("POST", endpoint, nil, nil)
if err != nil {
return err
}
_, err = s.client.Do(ctx, req, nil)
return err
}
|
