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invoke.go
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invoke.go
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package cliaws
import (
"context"
"encoding/base64"
"fmt"
"os"
"github.com/alexflint/go-arg"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/lambda"
"github.com/nathants/libaws/lib"
)
func init() {
lib.Commands["lambda-invoke"] = lambdaInvoke
lib.Args["lambda-invoke"] = lambdaInvokeArgs{}
}
type lambdaInvokeArgs struct {
Name string `arg:"positional,required"`
PayloadFile string `arg:"-f,--payload-file"`
PayloadString string `arg:"-s,--payload-string"`
Event bool `arg:"-e,--event"`
}
func (lambdaInvokeArgs) Description() string {
return "\nlambda invoke\n"
}
func lambdaInvoke() {
var args lambdaInvokeArgs
arg.MustParse(&args)
ctx := context.Background()
invocationType := lambda.InvocationTypeRequestResponse
logType := lambda.LogTypeTail
if args.Event {
invocationType = lambda.InvocationTypeEvent
logType = lambda.LogTypeNone
}
var payload []byte
if args.PayloadString != "" {
payload = []byte(args.PayloadString)
} else if args.PayloadFile != "" {
var err error
payload, err = os.ReadFile(args.PayloadFile)
if err != nil {
lib.Logger.Fatal("error: ", err)
}
}
out, err := lib.LambdaClient().InvokeWithContext(ctx, &lambda.InvokeInput{
FunctionName: aws.String(args.Name),
InvocationType: aws.String(invocationType),
LogType: aws.String(logType),
Payload: payload,
})
if err != nil {
lib.Logger.Fatal("error: ", err)
}
if out.LogResult != nil {
log := *out.LogResult
data, err := base64.StdEncoding.DecodeString(*out.LogResult)
if err == nil {
log = string(data)
}
fmt.Fprintln(os.Stderr, log)
}
if out.FunctionError != nil {
fmt.Fprintln(os.Stderr, string(out.Payload))
os.Exit(1)
} else {
fmt.Println(string(out.Payload))
}
}