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feat: support templating for http sinks (#45)
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,43 @@ | ||
--- | ||
version: 1 | ||
interactions: | ||
- request: | ||
body: '{"details":{"another_key":"index1","some_key":"elasticsearch.index1"}}' | ||
form: {} | ||
headers: | ||
Accept: | ||
- application/json | ||
Content-Type: | ||
- application/json | ||
url: http://127.0.0.1:54943/table/elasticsearch.index1 | ||
method: POST | ||
response: | ||
body: "" | ||
headers: | ||
Content-Length: | ||
- "0" | ||
Date: | ||
- Mon, 11 Jul 2022 09:32:21 GMT | ||
status: 200 OK | ||
code: 200 | ||
duration: 274.68µs | ||
- request: | ||
body: '{"details":{"another_key":"index2","some_key":"elasticsearch.index2"}}' | ||
form: {} | ||
headers: | ||
Accept: | ||
- application/json | ||
Content-Type: | ||
- application/json | ||
url: http://127.0.0.1:54943/table/elasticsearch.index2 | ||
method: POST | ||
response: | ||
body: "" | ||
headers: | ||
Content-Length: | ||
- "0" | ||
Date: | ||
- Mon, 11 Jul 2022 09:32:21 GMT | ||
status: 200 OK | ||
code: 200 | ||
duration: 173.792µs |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,78 @@ | ||
package http | ||
|
||
import ( | ||
"context" | ||
"encoding/json" | ||
"errors" | ||
"fmt" | ||
|
||
"github.com/d5/tengo/v2" | ||
v1beta2 "github.com/goto/meteor/models/gotocompany/assets/v1beta2" | ||
"github.com/goto/meteor/plugins/internal/tengoutil" | ||
"github.com/goto/meteor/plugins/internal/tengoutil/structmap" | ||
) | ||
|
||
var errUserExit = errors.New("user exit") | ||
|
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func (s *Sink) executeScript(ctx context.Context, url string, asset *v1beta2.Asset) error { | ||
scriptCfg := s.config.Script | ||
script, err := tengoutil.NewSecureScript( | ||
([]byte)(scriptCfg.Source), s.scriptGlobals(ctx, url), | ||
) | ||
if err != nil { | ||
return err | ||
} | ||
|
||
c, err := script.Compile() | ||
if err != nil { | ||
return fmt.Errorf("compile: %w", err) | ||
} | ||
|
||
assetMap, err := structmap.AsMap(asset) | ||
if err != nil { | ||
return fmt.Errorf("convert asset to map: %w", err) | ||
} | ||
|
||
if err := c.Set("asset", assetMap); err != nil { | ||
return fmt.Errorf("set asset into vm: %w", err) | ||
} | ||
|
||
if err := c.RunContext(ctx); err != nil && !errors.Is(err, errUserExit) { | ||
return fmt.Errorf("run: %w", err) | ||
} | ||
|
||
return nil | ||
} | ||
|
||
func (s *Sink) scriptGlobals(ctx context.Context, url string) map[string]interface{} { | ||
return map[string]interface{}{ | ||
"asset": map[string]interface{}{}, | ||
"sink": &tengo.UserFunction{ | ||
Name: "sink", | ||
Value: s.executeRequestWrapper(ctx, url), | ||
}, | ||
"exit": &tengo.UserFunction{ | ||
Name: "exit", | ||
Value: func(...tengo.Object) (tengo.Object, error) { | ||
return nil, errUserExit | ||
}, | ||
}, | ||
} | ||
} | ||
|
||
func (s *Sink) executeRequestWrapper(ctx context.Context, url string) tengo.CallableFunc { | ||
return func(args ...tengo.Object) (tengo.Object, error) { | ||
if len(args) != 1 { | ||
return nil, fmt.Errorf("execute request: invalid number of arguments of sink function, expected 1, got %d", len(args)) | ||
} | ||
payloadObj, ok := args[0].(*tengo.Map) | ||
if !ok { | ||
return nil, fmt.Errorf("execute request: invalid type of argument of sink function, expected map, got %T", args[0]) | ||
} | ||
payload, err := json.Marshal(tengo.ToInterface(payloadObj)) | ||
if err != nil { | ||
return nil, fmt.Errorf("execute request: marshal payload: %w", err) | ||
} | ||
return nil, s.makeRequest(ctx, url, payload) | ||
} | ||
} |