Free tutorial: build a Stable Diffusion XL image generator with Bubble (no-code tool)

This paragraph introduces a tutorial on constructing an AI image generator using Stable Diffusion XL, Excel, and Bubble—a no-code tool for web app development. The video will guide viewers from creating a blank app to integrating the Stable Diffusion XL API, a powerful image generation tool. The focus is on functionality rather than design, allowing viewers to adapt the app to their needs. The tutorial also mentions a course on building AI apps for those interested in learning more about integrating AI APIs with no-code platforms.

The speaker explains the process of obtaining an API key from the Stability platform, emphasizing its importance and the need to keep it secure. They demonstrate how to install the API Connector plugin in Bubble, which is essential for connecting the app to external services like the Stable Diffusion API. The tutorial covers setting up the API connection with correct authentication methods and correcting a mistake regarding the key name from 'authentication' to 'authorization'.

The paragraph details the steps to generate images using the Stable Diffusion XL API within the Bubble app. It covers selecting the 'text to image' function, copying the CURL sample, and pasting it into Bubble to create an API call. The video shows how to dynamically insert the prompt into the API call using Bubble's interface, ensuring the JSON syntax is correct, and setting the data type to 'image' to receive the generated image.

This section focuses on creating a user interface in Bubble for inputting prompts and displaying generated images. The tutorial outlines adding elements like text fields, input fields, and buttons within a responsive design using column layouts. It also discusses the importance of setting elements to be visible on page load and using gap spacing for design aesthetics.

The paragraph explains the workflow for generating images using the Stable Diffusion XL API. It involves setting up a dynamic prompt input, creating a custom state to store the generated image URL, and using the API call within a workflow. The video demonstrates how to dynamically input the prompt's value, retrieve the image URL, and update the custom state with the image URL. It also addresses a mistake in the URL format and how to correct it for proper display.

The final paragraph discusses debugging the image display issue in the Bubble app. The speaker uses the inspector tool to identify that the image element's visibility is not set correctly, causing the image not to display. After correcting the visibility settings, the tutorial shows a successful image generation with a prompt example. It also addresses a lingering spinner issue and adds steps to hide the spinner once the image is loaded, ensuring a smooth user experience.

In conclusion, the video demonstrates the successful integration of the Stable Diffusion XL API with a Bubble app, generating high-quality images based on user prompts. The speaker encourages viewers to explore more about building AI apps with no-code tools by checking out a specific course or following their channel for future content on no-code and AI integration.