Video Generation

const { Configuration, VideoApi } = require('@legnext-api/js-sdk');

const apiClient = new Configuration();
apiClient.basePath = 'https://api.legnext.ai';
const videoApi = new VideoApi(apiClient);

const apiKey = 'your-api-key-here';

// Text-to-video
const body = {
    prompt: 'a flowing river through mountains',
    videoType: 1, // 0=480p (faster), 1=720p (higher quality)
    callback: 'https://your-domain.com/webhook'
};

const response = await videoApi.apiV1VideoDiffusionPost(apiKey, body);
console.log('Job ID:', response.jobId);

// Animate a specific image from a generation task
const body = {
    jobId: 'original-job-id',
    imageNo: 0, // Image number (0-3)
    prompt: 'flowing water animation',
    videoType: 1,
    callback: 'https://your-domain.com/webhook'
};

const response = await videoApi.apiV1VideoDiffusionPost(apiKey, body);

// Animate an existing image by URL
const body = {
    prompt: 'https://example.com/image.png a flowing river through mountains',
    videoType: 1,
    callback: 'https://your-domain.com/webhook'
};

const response = await videoApi.apiV1VideoDiffusionPost(apiKey, body);

const body = {
    jobId: 'original-video-job-id',
    videoNo: 0, // Video number (0-3)
    prompt: 'continue with dramatic lighting', // Optional
    callback: 'https://your-domain.com/webhook'
};

const response = await videoApi.apiV1ExtendVideoPost(apiKey, body);
console.log('Extended video Job ID:', response.jobId);

const body = {
    jobId: 'original-video-job-id',
    videoNo: 0, // Video number (0-3)
    callback: 'https://your-domain.com/webhook'
};

const response = await videoApi.apiV1VideoUpscalePost(apiKey, body);
console.log('Upscaled video Job ID:', response.jobId);

const { Configuration, VideoApi } = require('@legnext-api/js-sdk');

async function generateAndExtendVideo() {
    const apiClient = new Configuration();
    apiClient.basePath = 'https://api.legnext.ai';
    const videoApi = new VideoApi(apiClient);

    const apiKey = process.env.LEGNEXT_API_KEY;

    try {
        // Step 1: Generate initial video
        const body = {
            prompt: 'a sunset over ocean waves',
            videoType: 1
        };

        const initialResponse = await videoApi.apiV1VideoDiffusionPost(apiKey, body);
        const jobId = initialResponse.jobId;
        console.log('Initial video job:', jobId);

        // Wait for completion (see task-management.mdx)
        // await waitForCompletion(jobId);

        // Step 2: Extend the video
        const extendBody = {
            jobId: jobId,
            videoNo: 0,
            prompt: 'zoom in on the waves'
        };

        const extendResponse = await videoApi.apiV1ExtendVideoPost(apiKey, extendBody);
        console.log('Extended video job:', extendResponse.jobId);

    } catch (error) {
        console.error('Error:', error);
    }
}

generateAndExtendVideo();