Leonardo Typescript SDK

The API for creating stunning game assets with AI.

SDK Installation

NPM

npm add @leonardo-ai/sdk

Yarn

yarn add @leonardo-ai/sdk

Authentication

To get access to the API and fetch an API key, please sign up for access.

SDK Example Usage

Example

import { Leonardo } from "@leonardo-ai/sdk";

const leonardo = new Leonardo({
    bearerAuth: "<YOUR_BEARER_TOKEN_HERE>",
});

async function run() {
    const result = await leonardo.dataset.createDataset({
        name: "<value>",
    });

    // Handle the result
    console.log(result);
}

run();

Available Resources and Operations

dataset

• createDataset - Create a Dataset
• deleteDatasetById - Delete a Single Dataset by ID
• getDatasetById - Get a Single Dataset by ID
• uploadDatasetImage - Upload dataset image
• uploadDatasetImageFromGen - Upload a Single Generated Image to a Dataset

element

• listElements - List Elements

generation

• createGeneration - Create a Generation of Images
• createLCMGeneration - Create LCM Generation
• createSVDMotionGeneration - Create SVD Motion Generation
• createTextureGeneration - Create Texture Generation
• deleteGenerationById - Delete a Single Generation
• deleteTextureGenerationById - Delete Texture Generation by ID
• getGenerationById - Get a Single Generation
• getGenerationsByUserId - Get generations by user ID
• performAlchemyUpscaleLCM - Perform Alchemy Upscale on a LCM image
• performInpaintingLCM - Perform inpainting on a LCM image
• performInstantRefine - Perform instant refine on a LCM image

initImage

• deleteInitImageById - Delete init image
• getInitImageById - Get single init image
• uploadInitImage - Upload init image

user

• getUserSelf - Get user information

model

• createModel - Train a Custom Model
• delete3DModelById - Delete 3D Model by ID
• deleteModelById - Delete a Single Custom Model by ID
• getModelById - Get a Single Custom Model by ID
• listPlatformModels - List Platform Models
• uploadModelAsset - Upload 3D Model

pricingCalculator

• pricingCalculator - Calculating API Cost

prompt

• promptImprove - Improve a Prompt
• promptRandom - Generate a Random prompt

variation

• createUniversalUpscalerJob - Create using Universal Upscaler
• createVariationNoBG - Create no background
• createVariationUnzoom - Create unzoom
• createVariationUpscale - Create upscale
• getVariationById - Get variation by ID

Error Handling

All SDK methods return a response object or throw an error. If Error objects are specified in your OpenAPI Spec, the SDK will throw the appropriate Error type.

Error Object	Status Code	Content Type
errors.SDKError	4xx-5xx	/

Validation errors can also occur when either method arguments or data returned from the server do not match the expected format. The SDKValidationError that is thrown as a result will capture the raw value that failed validation in an attribute called rawValue. Additionally, a pretty() method is available on this error that can be used to log a nicely formatted string since validation errors can list many issues and the plain error string may be difficult read when debugging.

import { Leonardo } from "@leonardo-ai/sdk";
import * as errors from "@leonardo-ai/sdk/sdk/models/errors";

const leonardo = new Leonardo({
    bearerAuth: "<YOUR_BEARER_TOKEN_HERE>",
});

async function run() {
    let result;
    try {
        result = await leonardo.dataset.createDataset({
            name: "<value>",
        });
    } catch (err) {
        switch (true) {
            case err instanceof errors.SDKValidationError: {
                // Validation errors can be pretty-printed
                console.error(err.pretty());
                // Raw value may also be inspected
                console.error(err.rawValue);
                return;
            }
            default: {
                throw err;
            }
        }
    }

    // Handle the result
    console.log(result);
}

run();

Custom HTTP Client

The TypeScript SDK makes API calls using an HTTPClient that wraps the native Fetch API. This client is a thin wrapper around fetch and provides the ability to attach hooks around the request lifecycle that can be used to modify the request or handle errors and response.

The HTTPClient constructor takes an optional fetcher argument that can be used to integrate a third-party HTTP client or when writing tests to mock out the HTTP client and feed in fixtures.

The following example shows how to use the "beforeRequest" hook to to add a custom header and a timeout to requests and how to use the "requestError" hook to log errors:

import { Leonardo } from "@leonardo-ai/sdk";
import { HTTPClient } from "@leonardo-ai/sdk/lib/http";

const httpClient = new HTTPClient({
  // fetcher takes a function that has the same signature as native `fetch`.
  fetcher: (request) => {
    return fetch(request);
  }
});

httpClient.addHook("beforeRequest", (request) => {
  const nextRequest = new Request(request, {
    signal: request.signal || AbortSignal.timeout(5000)
  });

  nextRequest.headers.set("x-custom-header", "custom value");

  return nextRequest;
});

httpClient.addHook("requestError", (error, request) => {
  console.group("Request Error");
  console.log("Reason:", `${error}`);
  console.log("Endpoint:", `${request.method} ${request.url}`);
  console.groupEnd();
});

const sdk = new Leonardo({ httpClient });

Server Selection

Select Server by Index

You can override the default server globally by passing a server index to the serverIdx optional parameter when initializing the SDK client instance. The selected server will then be used as the default on the operations that use it. This table lists the indexes associated with the available servers:

#	Server	Variables
0	https://cloud.leonardo.ai/api/rest/v1	None

import { Leonardo } from "@leonardo-ai/sdk";

const leonardo = new Leonardo({
    serverIdx: 0,
    bearerAuth: "<YOUR_BEARER_TOKEN_HERE>",
});

async function run() {
    const result = await leonardo.dataset.createDataset({
        name: "<value>",
    });

    // Handle the result
    console.log(result);
}

run();

Override Server URL Per-Client

The default server can also be overridden globally by passing a URL to the serverURL optional parameter when initializing the SDK client instance. For example:

import { Leonardo } from "@leonardo-ai/sdk";

const leonardo = new Leonardo({
    serverURL: "https://cloud.leonardo.ai/api/rest/v1",
    bearerAuth: "<YOUR_BEARER_TOKEN_HERE>",
});

async function run() {
    const result = await leonardo.dataset.createDataset({
        name: "<value>",
    });

    // Handle the result
    console.log(result);
}

run();

Authentication

Per-Client Security Schemes

This SDK supports the following security scheme globally:

Name	Type	Scheme
bearerAuth	http	HTTP Bearer

To authenticate with the API the bearerAuth parameter must be set when initializing the SDK client instance. For example:

import { Leonardo } from "@leonardo-ai/sdk";

const leonardo = new Leonardo({
    bearerAuth: "<YOUR_BEARER_TOKEN_HERE>",
});

async function run() {
    const result = await leonardo.dataset.createDataset({
        name: "<value>",
    });

    // Handle the result
    console.log(result);
}

run();

Requirements

For supported JavaScript runtimes, please consult RUNTIMES.md.

SDK Generated by Speakeasy