Replicate PHP client

This is a framework-agnostic PHP client for Replicate.com built on the amazing Saloon v3 🤠 library. Use it to easily interact with machine learning models such as Stable Diffusion right from your PHP application.

Table of contents

• Quick Start
• Using with Laravel
• Response Data
• Webhooks
• Prediction Methods
  • get
  • list
  • create

🚀 Quick start

Install with composer.

composer require benbjurstrom/replicate-php

Create a new api instance.

use BenBjurstrom\Replicate\Replicate;
...

$api = new Replicate(
    apiToken: $_ENV['REPLICATE_API_TOKEN'],
);

Then use it to invoke your model (or in replicate terms "create a prediction").

$version = 'db21e45d3f7023abc2a46ee38a23973f6dce16bb082a930b0c49861f96d1e5bf';
$input = [
    'model' => 'stable-diffusion-2-1',
    'prompt' => 'a photo of an astronaut riding a horse on mars',
    'negative_prompt' => 'moon, alien, spaceship',
    'width' => 768,
    'height' => 768,
    'num_inference_steps' => 50,
    'guidance_scale' => 7.5,
    'scheduler' => 'DPMSolverMultistep',
    'seed' => null,
];

$data = $api->predictions()->create($version, $input);
$data->id; // yfv4cakjzvh2lexxv7o5qzymqy

Note that the input parameters will vary depending on what version (model) you're using. In this example version db21e45d3f7023abc2a46ee38a23973f6dce16bb082a930b0c49861f96d1e5bf is a Stable Diffusion 2.1 model optimized for speed.

Create a prediction for a specific deployment

ou can now create a prediction for a specific deployment using the createForDeployment method. This method takes the full name of the deployment and an array of data as input, sends the HTTP request, and returns the data of the created prediction.

Here's an example of how to use it:

$deploymentName = 'my-deployment';
$input = [
    'model' => 'stable-diffusion-2-1',
    'prompt' => 'a photo of an astronaut riding a horse on mars',
    'negative_prompt' => 'moon, alien, spaceship',
    'width' => 768,
    'height' => 768,
    'num_inference_steps' => 50,
    'guidance_scale' => 7.5,
    'scheduler' => 'DPMSolverMultistep',
    'seed' => null,
];

$data = $api->predictions()->createForDeployment($deploymentName, $input);
$data->id; // yfv4cakjzvh2lexxv7o5qzymqy

Using with Laravel

Begin by adding your credentials to your services config file.

// config/services.php
'replicate' => [
    'api_token' => env('REPLICATE_API_TOKEN'),
],

Bind the Replicate class in a service provider.

// app/Providers/AppServiceProvider.php
public function register()
{
    $this->app->bind(Replicate::class, function () {
        return new Replicate(
            apiToken: config('services.replicate.api_token'),
        );
    });
}

And use anywhere in your application.

$data = app(Replicate::class)->predictions()->get($id);

Test your integration using Saloon's amazing response recording.

use Saloon\Laravel\Saloon; // composer require sammyjo20/saloon-laravel "^2.0"
...
Saloon::fake([
    MockResponse::fixture('getPrediction'),
]);

$id = 'yfv4cakjzvh2lexxv7o5qzymqy';

// The initial request will check if a fixture called "getPrediction" 
// exists. Because it doesn't exist yet, the real request will be
// sent and the response will be recorded to tests/Fixtures/Saloon/getPrediction.json.
$data = app(Replicate::class)->predictions()->get($id);

// However, the next time the request is made, the fixture will 
// exist, and Saloon will not make the request again.
$data = app(Replicate::class)->predictions()->get($id);

Response Data

All responses are returned as data objects. Detailed information can be found by inspecting the following class properties:

• PredictionData
• PredictionsData

Webhooks

Replicate allows you to configure a webhook to be called when your prediction is complete. To do so chain withWebhook($url) onto your api instance before calling the create method. For example:

$api->predictions()->withWebhook('https://www.example.com/webhook')->create($version, $input);
$data->id; // la5xlbbrfzg57ip5jlx6obmm5y

Available Prediction Methods

get()

Use to get details about an existing prediction. If the prediction has completed the results will be under the output property.

use BenBjurstrom\Replicate\Data\PredictionData;
...
$id = 'la5xlbbrfzg57ip5jlx6obmm5y'
/* @var PredictionData $data */
$data = $api->predictions()->get($id);
$data->output[0]; // https://replicate.delivery/pbxt/6UFOVtl1xCJPAFFiTB2tfveYBNRLhLmJz8yMQAYCOeZSFhOhA/out-0.png

list()

Use to get a cursor paginated list of predictions. Returns an PredictionsData object.

use BenBjurstrom\Replicate\Data\PredictionsData
...

/* @var PredictionsData $data */
$data = $api->predictions()->list(
    cursor: '123', // optional
);

$data->results[0]->id; // la5xlbbrfzg57ip5jlx6obmm5y

create()

Use to create a new prediction (invoke a model). Returns an PredictionData object.

use BenBjurstrom\Replicate\Data\PredictionData;
...
$version = '5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa';
$input = [
    'text' => 'Alice'
];

/* @var PredictionData $data */
$data = $api->predictions()
    ->withWebhook('https://www.example.com/webhook') // optional
    ->create($version, $input);
$data->id; // la5xlbbrfzg57ip5jlx6obmm5y

Credits

• Ben Bjurstrom
• All Contributors

License

The MIT License (MIT). Please see License File for more information.