Files
PandaX/pkg/rule_engine/nodes/external_restapi_node.go
2024-08-27 21:51:28 +08:00

80 lines
2.7 KiB
Go

package nodes
import (
"encoding/json"
"errors"
"github.com/PandaXGO/PandaKit/httpclient"
"pandax/pkg/rule_engine/message"
)
type externalRestapiNode struct {
bareNode
RestEndpointUrlPattern string `json:"restEndpointUrlPattern" yaml:"restEndpointUrlPattern"`
RequestMethod string `json:"requestMethod" yaml:"requestMethod"`
Headers map[string]string `json:"headers" yaml:"headers"`
ReadTimeoutMs int64 `json:"readTimeoutMs" yaml:"readTimeoutMs"` //读取超时
MaxParallelRequestsCount int64 `json:"maxParallelRequestsCount" yaml:"readTimeoutMs"`
UseRedisQueueForMsgPersistence bool `json:"useRedisQueueForMsgPersistence"` //消息持久化
MaxQueueSize int64 `json:"maxQueueSize"` //队列大小
}
type externalRestapiNodeFactory struct{}
func (f externalRestapiNodeFactory) Name() string { return "RestapiNode" }
func (f externalRestapiNodeFactory) Category() string { return NODE_CATEGORY_EXTERNAL }
func (f externalRestapiNodeFactory) Labels() []string { return []string{"Success", "Failure"} }
func (f externalRestapiNodeFactory) Create(id string, meta Properties) (Node, error) {
node := &externalRestapiNode{
bareNode: newBareNode(f.Name(), id, meta, f.Labels()),
}
return decodePath(meta, node)
}
func (n *externalRestapiNode) Handle(msg *message.Message) error {
n.Debug(msg, message.DEBUGIN, "")
successLableNode := n.GetLinkedNode("Success")
failureLableNode := n.GetLinkedNode("Failure")
if n.RequestMethod == "GET" {
resp := httpclient.NewRequest(n.RestEndpointUrlPattern).Get()
if resp.StatusCode != 200 {
return errors.New("网络请求失败")
}
var response map[string]interface{}
err := json.Unmarshal(resp.Body, &response)
if err != nil && failureLableNode != nil {
n.Debug(msg, message.DEBUGOUT, err.Error())
return failureLableNode.Handle(msg)
} else {
if successLableNode != nil {
metadata := msg.Metadata
for key, value := range response {
metadata.SetValue(key, value)
}
msg.Metadata = metadata
n.Debug(msg, message.DEBUGOUT, "")
return successLableNode.Handle(msg)
}
}
}
if n.RequestMethod == "POST" {
binary, _ := msg.MarshalBinary()
req := httpclient.NewRequest(n.RestEndpointUrlPattern)
for key, value := range n.Headers {
req.Header(key, value)
}
resp := req.PostJson(string(binary))
if resp.StatusCode != 200 {
if failureLableNode != nil {
n.Debug(msg, message.DEBUGOUT, "接口请求失败")
return failureLableNode.Handle(msg)
}
} else {
if successLableNode != nil {
n.Debug(msg, message.DEBUGOUT, "")
return successLableNode.Handle(msg)
}
}
}
return nil
}