Create a tune from a pack
Creates a new fine-tune model from training images according to the pack base tune id, model type and adds prompts to generate images.
info
Please make sure to go over the overview for why using packs and how to create your first pack.
Parameters
name (required)
A class name the describes the fine-tune. e.g: man, woman, cat, dog, boy, girl, style. Class name must be supported by pack.
title (required)
Describes the fine-tune. Ideally a UUID related to the transaction. See idempotency for more information.
images (required)
An array of images to train the fine-tune with. The images can be uploaded as multipart/form-data or as image_urls.
image_urls (required)
An array of images to train the fine-tune with. The images can be uploaded as multipart/form-data or as image_urls.
callback (optional)
A webhook URL to be called when the tune is finished training. The webhook will receive a POST request with the tune object. See more on callbacks.
characteristics (optional)
A free-form object that can be used to templatize the prompts text. e.g: {"eye_color": "blue eyes"} would than be used in the prompt text as ohwx woman, {{eye_color}}, holding flowers.
prompt_attributes.callback (optional)
A webhook URL to be called when each prompt is finished inference. The webhook will receive a POST request with the prompt object. See more on callbacks.
prompts_callback (optional)
A webhook URL to be called when all the prompts are finished training. The webhook will receive a POST request with an array of prompts objects.
tune_ids (optional)
Array of tune ids. If provided, will be used instead of the above attributes to create pack prompts only.
Returns
Returns a tune object if successful which will start training immediately and call callback once training is complete.
POST /p/:pack_id/tunes
- cURL
- Node.js
- Python
# With images as multipart/form-data
# Hard coded pack id 260 for corporate headshots from the gallery - https://www.astria.ai/gallery/packs.json
# https://www.astria.ai/gallery/tunes/690204/prompts
curl -X POST -H "Authorization: Bearer $API_KEY" https://api.astria.ai/p/260/tunes \
-F tune[title]="John Doe - UUID - 1234-6789-1234-56789" \
-F tune[name]=man \
-f tune[preset]=flux-lora-portrait \
-F tune[callback]="https://optional-callback-url.com/webhooks/astria?user_id=1" \
-F tune[characteristics][eye_color]="blue eyes" \
-F tune[prompt_attributes][callback]="https://optional-callback-url.com/webhooks/astria_prompts?user_id=1" \
-F "tune[images][][email protected]" \
-F "tune[images][][email protected]" \
-F "tune[images][][email protected]" \
-F "tune[images][][email protected]"
# With image_urls as form-data
curl -X POST -H "Authorization: Bearer $API_KEY" https://api.astria.ai/p/260/tunes \
-F tune[title]="Grumpy cat - UUID - 1234-6789-1234-56789" \
-F tune[name]=cat \
-F tune[callback]="https://optional-callback-url.com/to-your-service-when-ready?user_id=1" \
-F tune[prompt_attributes][callback]="https://optional-callback-url.com/webhooks/astria_prompts?user_id=1" \
-F "tune[image_urls][]=https://i.imgur.com/HLHBnl9.jpeg" \
-F "tune[image_urls][]=https://i.imgur.com/HLHBnl9.jpeg" \
-F "tune[image_urls][]=https://i.imgur.com/HLHBnl9.jpeg" \
-F "tune[image_urls][]=https://i.imgur.com/HLHBnl9.jpeg"
# As JSON
cat > data.json <<- EOM
{
"tune": {
"title": "Grumpy Cat - UUID - 1234-6789-1234-56789",
"name": "cat",
"callback": "https://optional-callback-url.com/to-your-service-when-ready?user_id=1",
"characteristics": {"eye_color": "blue eyes"},
"prompt_attributes": {
"callback": "https://optional-callback-url.com/webhooks/astria_prompts?user_id=1"
},
"image_urls": [
"https://i.imgur.com/HLHBnl9.jpeg",
"https://i.imgur.com/HLHBnl9.jpeg",
"https://i.imgur.com/HLHBnl9.jpeg",
"https://i.imgur.com/HLHBnl9.jpeg"
]
}
}
EOM
# Hard coded pack id 260 for corporate headshots from the gallery - https://www.astria.ai/gallery/packs.json
curl -X POST -H"Content-Type: application/json" -H "Authorization: Bearer $API_KEY" --data @data.json https://api.astria.ai/p/260/tunes
// NodeJS 16
// With image_urls and fetch()
// For NodeJS 18 - do NOT import the below as it is built-in
import fetch from "node-fetch";
const API_KEY = 'sd_XXXXXX';
const DOMAIN = 'https://api.astria.ai';
function createTune() {
let options = {
method: 'POST',
headers: { 'Authorization': 'Bearer ' + API_KEY, 'Content-Type': 'application/json' },
body: JSON.stringify({
tune: {
"title": 'John Doe - UUID - 1234-6789-1234-56789',
"name": "cat",
"callback": "https://optional-callback-url.com/to-your-service-when-ready?user_id=1",
"characteristics": {"eye_color": "blue eyes"},
"prompt_attributes": {
"callback": "https://optional-callback-url.com/webhooks/astria_prompts?user_id=1"
},
"image_urls": [
"https://i.imgur.com/HLHBnl9.jpeg",
"https://i.imgur.com/HLHBnl9.jpeg",
"https://i.imgur.com/HLHBnl9.jpeg",
"https://i.imgur.com/HLHBnl9.jpeg"
]
}
})
};
// Hard coded pack id 260 for corporate headshots from the gallery - https://www.astria.ai/gallery/packs.json
return fetch(DOMAIN + '/p/260/tunes', options)
.then(r => r.json())
.then(r => console.log(r))
}
createTune()
/// With form-data, fetch() and nested prompts
// For NodeJS 18 - do NOT import the two below as they are built-in
import fetch from "node-fetch";
import FormData from 'form-data';
import fs from 'fs';
const API_KEY = 'sd_XXXX';
const DOMAIN = 'https://api.astria.ai';
function createTune() {
let formData = new FormData();
formData.append('tune[title]', 'John Doe - UUID - 1234-6789-1234-56789');
formData.append('tune[name]', 'man');
formData.append('tune[preset]', 'flux-lora-portrait');
formData.append('tune[callback]', 'https://optional-callback-url.com/webhooks/astria?user_id=1');
formData.append('tune[characteristics][eye_color]', 'blue eyes');
formData.append('tune[prompt_attributes][callback]', 'https://optional-callback-url.com/webhooks/astria_prompts?user_id=1');
// Load all JPGs from ./samples directory and append to FormData
let files = fs.readdirSync('./samples');
files.forEach(file => {
if(file.endsWith('.jpg')) {
formData.append('tune[images][]', fs.createReadStream(`./samples/${file}`), file);
}
});
formData.append('tune[callback]', 'https://optional-callback-url.com/to-your-service-when-ready?user_id=1');
let options = {
method: 'POST',
headers: {
'Authorization': 'Bearer ' + API_KEY
},
body: formData
};
// Hard coded pack id 260 for corporate headshots from the gallery - https://www.astria.ai/gallery/packs.json
return fetch(DOMAIN + '/p/260/tunes', options)
.then(r => r.json())
.then(r => console.log(r));
}
createTune();
// Create prompts from pack with tune_ids
function createTune(tuneIds) {
let options = {
method: 'POST',
headers: { 'Authorization': 'Bearer ' + API_KEY, 'Content-Type': 'application/json' },
body: JSON.stringify({
tune: {
tune_ids: tuneIds,
}
})
};
// Hard coded pack id 260 for corporate headshots from the gallery - https://www.astria.ai/gallery/packs.json
return fetch(DOMAIN + '/p/260/tunes', options)
.then(r => r.json())
.then(r => console.log(r))
}
createTune([89])
import requests
headers = {'Authorization': f'Bearer {API_KEY}'}
def load_image(file_path):
with open(file_path, "rb") as f:
return f.read()
# Assuming `prompts` and `tune.images` are already defined in your context
data = {
"tune[title]": "John Doe - UUID - 1234-6789-1234-56789",
"tune[name]": "man",
"tune[preset]": "flux-lora-portrait",
}
files = []
for image in tune.images:
image_data = load_image(image) # Assuming image is a file path
files.append(("tune[images][]", image_data))
API_URL = 'https://api.astria.ai/p/260/tunes'
response = requests.post(API_URL, data=data, files=files, headers=headers)
response.raise_for_status()
## Alternatively - create prompts from pack with tune_ids
data = {
"tune": {
"tune_ids": [89]
}
}
response = requests.post(API_URL, json=data, headers=headers)
Response
{
"id": 1,
"title": "John Doe",
"name": "woman",
"eta": "2023-10-02T14:32:40.363Z",
"trained_at": "2023-10-02T14:32:40.363Z",
"started_training_at": "2023-10-02T14:32:05.229Z",
"expires_at": "2023-11-01T14:32:40.363Z",
"created_at": "2023-10-02T14:32:05.067Z",
"updated_at": "2023-10-02T14:32:40.363Z",
"url": "https://www.astria.ai/tunes/788416.json",
"orig_images": [
"https://sdbooth2-production.s3.amazonaws.com/mock",
"https://sdbooth2-production.s3.amazonaws.com/mock",
"https://sdbooth2-production.s3.amazonaws.com/mock",
"https://sdbooth2-production.s3.amazonaws.com/mock",
"https://sdbooth2-production.s3.amazonaws.com/mock",
"https://sdbooth2-production.s3.amazonaws.com/mock",
"https://sdbooth2-production.s3.amazonaws.com/mock",
"https://sdbooth2-production.s3.amazonaws.com/mock",
"https://sdbooth2-production.s3.amazonaws.com/mock",
"https://sdbooth2-production.s3.amazonaws.com/mock"
]
}