Apex Golang
Golang runtime support for Apex/Lambda – providing handlers for Lambda sources, and runtime requirements such as implementing the Node.js shim stdio interface.
NOTE: apex v1.x supports native Go, so you should use https://github.com/aws/aws-lambda-go instead of this package.
Features
Currently supports:
- Node.js shim
- Environment variable population
- Arbitrary JSON
- CloudWatch Logs
- Cognito
- Kinesis
- Dynamo
- S3
- SNS
- SES
Example
package main
import (
"encoding/json"
"strings"
"github.com/apex/go-apex"
)
type message struct {
Value string `json:"value"`
}
func main() {
apex.HandleFunc(func(event json.RawMessage, ctx *apex.Context) (interface{}, error) {
var m message
if err := json.Unmarshal(event, &m); err != nil {
return nil, err
}
m.Value = strings.ToUpper(m.Value)
return m, nil
})
}
Run the program:
echo '{"event":{"value":"Hello World!"}}', go run main.go
{"value":{"value":"HELLO WORLD!"}}
Notes
Due to the Node.js shim required to run Go in Lambda, you must use stderr for logging – stdout is reserved for the shim.
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