Chapter 477: Triggering renders from Go

Core Idea

<ExperimentalBadge> This feature is new. Please report any issues you encounter.

Key Concepts

• Cancelling a render<AvailableFrom v="4.0.515" />
• Changelog
• See also

Code Examples

package main

import (
	"fmt"
	"log"
	"os"

	"github.com/go-playground/validator/v10"
	"github.com/joho/godotenv"
	"github.com/remotion-dev/lambda_go_sdk"
)

type ValidationError struct {
	Field   string
	Message string
}

func msgForTag(fe validator.FieldError) string {
	switch fe.Tag() {
	case "required":
		return "This field is required"

	}
	return fe.Error() // default error
}

func main() {

	// Load the environment variables from the .env file
	err := godotenv.Load()
	if err != nil {
		log.Fatal(err)
	}

	// Specify the URL to your Webpack bundle
	serveUrl := os.Getenv("REMOTION_APP_SERVE_URL")
	// Specify the function you would like to call
	functionName := os.Getenv("REMOTION_APP_FUNCTION_NAME")
	// Specify the region you deployed to, for example "us-east-1"
	region := os.Getenv("REMOTION_APP_REGION")

	// Set parameters for render
	renderInputRequest := lambda_go_sdk.RemotionOptions{
		ServeUrl:     serveUrl,
		FunctionName: functionName,
		Region:       region,
		// The data that composition will use
		InputProps: map[string]interface{}{
			"data": "Let's play",
		},
		Composition: "main", // The composition to use

	}

	// Execute the render process
	renderResponse, renderError := lambda_go_sdk.RenderMediaOnLambda(renderInputRequest)

	// Check if there are validation errors
	if renderError != nil {

		validationOut := make([]ValidationError, len(renderError.(valida
// ...(truncated)

• What it demonstrates: Usage pattern for Triggering renders from Go from the official docs.

Key Takeaways

1. Understand cancelling a render<availablefrom v="4.0.515" /> when working with Triggering renders from Go.
2. Understand changelog when working with Triggering renders from Go.
3. Understand see also when working with Triggering renders from Go.

Connects To

• api: related page in the Lambda (@remotion/lambda) section.
• Approuterwebhook: related page in the Lambda (@remotion/lambda) section.
• Authentication: related page in the Lambda (@remotion/lambda) section.