Flow-Edit Text to Image
About
Generate Image
1. Calling the API#
Install the client#
The client provides a convenient way to interact with the model API.
npm install --save @fal-ai/client
Migrate to @fal-ai/client
The @fal-ai/serverless-client
package has been deprecated in favor of @fal-ai/client
. Please check the migration guide for more information.
Setup your API Key#
Set FAL_KEY
as an environment variable in your runtime.
export FAL_KEY="YOUR_API_KEY"
Submit a request#
The client API handles the API submit protocol. It will handle the request status updates and return the result when the request is completed.
import { fal } from "@fal-ai/client";
const result = await fal.subscribe("fal-ai/flowedit", {
input: {
image_url: "https://storage.googleapis.com/falserverless/model_tests/FlowEdit/lighthouse.png",
source_prompt: "The image features a tall white lighthouse standing prominently
on a hill, with a beautiful blue sky in the background. The lighthouse is illuminated
by a bright light, making it a prominent landmark in the scene.",
target_prompt: "The image features Big ben clock tower standing prominently
on a hill, with a beautiful blue sky in the background. The Big ben clock tower is illuminated
by a bright light, making it a prominent landmark in the scene."
},
logs: true,
onQueueUpdate: (update) => {
if (update.status === "IN_PROGRESS") {
update.logs.map((log) => log.message).forEach(console.log);
}
},
});
console.log(result.data);
console.log(result.requestId);
2. Authentication#
The API uses an API Key for authentication. It is recommended you set the FAL_KEY
environment variable in your runtime when possible.
API Key#
import { fal } from "@fal-ai/client";
fal.config({
credentials: "YOUR_FAL_KEY"
});
Protect your API Key
When running code on the client-side (e.g. in a browser, mobile app or GUI applications), make sure to not expose your FAL_KEY
. Instead, use a server-side proxy to make requests to the API. For more information, check out our server-side integration guide.
3. Queue#
Submit a request#
The client API provides a convenient way to submit requests to the model.
import { fal } from "@fal-ai/client";
const { request_id } = await fal.queue.submit("fal-ai/flowedit", {
input: {
image_url: "https://storage.googleapis.com/falserverless/model_tests/FlowEdit/lighthouse.png",
source_prompt: "The image features a tall white lighthouse standing prominently
on a hill, with a beautiful blue sky in the background. The lighthouse is illuminated
by a bright light, making it a prominent landmark in the scene.",
target_prompt: "The image features Big ben clock tower standing prominently
on a hill, with a beautiful blue sky in the background. The Big ben clock tower is illuminated
by a bright light, making it a prominent landmark in the scene."
},
webhookUrl: "https://optional.webhook.url/for/results",
});
Fetch request status#
You can fetch the status of a request to check if it is completed or still in progress.
import { fal } from "@fal-ai/client";
const status = await fal.queue.status("fal-ai/flowedit", {
requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b",
logs: true,
});
Get the result#
Once the request is completed, you can fetch the result. See the Output Schema for the expected result format.
import { fal } from "@fal-ai/client";
const result = await fal.queue.result("fal-ai/flowedit", {
requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b"
});
console.log(result.data);
console.log(result.requestId);
4. Files#
Some attributes in the API accept file URLs as input. Whenever that's the case you can pass your own URL or a Base64 data URI.
Data URI (base64)#
You can pass a Base64 data URI as a file input. The API will handle the file decoding for you. Keep in mind that for large files, this alternative although convenient can impact the request performance.
Hosted files (URL)#
You can also pass your own URLs as long as they are publicly accessible. Be aware that some hosts might block cross-site requests, rate-limit, or consider the request as a bot.
Uploading files#
We provide a convenient file storage that allows you to upload files and use them in your requests. You can upload files using the client API and use the returned URL in your requests.
import { fal } from "@fal-ai/client";
const file = new File(["Hello, World!"], "hello.txt", { type: "text/plain" });
const url = await fal.storage.upload(file);
Auto uploads
The client will auto-upload the file for you if you pass a binary object (e.g. File
, Data
).
Read more about file handling in our file upload guide.
5. Schema#
Input#
image_url
string
* requiredURL of image to be used for relighting
source_prompt
string
* requiredPrompt of the image to be used.
target_prompt
string
* requiredPrompt of the image to be made.
seed
integer
Random seed for reproducible generation. If set none, a random seed will be used.
num_inference_steps
integer
Steps for which the model should run. Default value: 28
src_guidance_scale
integer
Guidance scale for the source. Default value: 1.5
tar_guidance_scale
integer
Guidance scale for target. Default value: 5.5
n_avg
integer
Average step count Default value: 1
n_max
integer
Control the strength of the edit Default value: 23
n_min
integer
Minimum step for improved style edits
{
"image_url": "https://storage.googleapis.com/falserverless/model_tests/FlowEdit/lighthouse.png",
"source_prompt": "The image features a tall white lighthouse standing prominently\n on a hill, with a beautiful blue sky in the background. The lighthouse is illuminated\n by a bright light, making it a prominent landmark in the scene.",
"target_prompt": "The image features Big ben clock tower standing prominently\n on a hill, with a beautiful blue sky in the background. The Big ben clock tower is illuminated\n by a bright light, making it a prominent landmark in the scene.",
"num_inference_steps": 28,
"src_guidance_scale": 1.5,
"tar_guidance_scale": 5.5,
"n_avg": 1,
"n_max": 23
}
Output#
The generated image file info.
seed
integer
* requiredSeed of the generated Image. It will be the same value of the one passed in the input or the randomly generated that was used in case none was passed.
{
"image": {
"file_size": 423052,
"height": 1024,
"file_name": "36d3ca4791a647678b2ff01a35c87f5a.png",
"content_type": "image/png",
"url": "https://storage.googleapis.com/falserverless/model_tests/FlowEdit/aa5c3d028ad04800a54f70f928198d91.png",
"width": 1024
}
}
Other types#
Image#
url
string
* requiredThe URL where the file can be downloaded from.
content_type
string
The mime type of the file.
file_name
string
The name of the file. It will be auto-generated if not provided.
file_size
integer
The size of the file in bytes.
file_data
string
File data
width
integer
The width of the image in pixels.
height
integer
The height of the image in pixels.