Celest Sign me SDK

v0.2.2 2024-04-23 02:34 UTC

This package is auto-updated.

Last update: 2024-06-23 03:10:32 UTC


SignMe ( PHP-SDK

Handle your SignMe-requests in a human-digestible way. The goal is to make it feel like working with local models.

SignMe is a signature service targeted at integrators, rather than a pure UI-solution like most competitors.

Status: Private BETA. Please do not use in production yet


use Retech\Celest\SignMe\SignMeClient;

$sdk = (new SignMeClient())->authenticate();

// create a new document to sign
$newDocument = $sdk->uploadDocument('SDK upload','path/contracts/max-hunter-lease-agreement.pdf');

// add Signatory
$signatoryMax = $newDocument->addSignatory('my-reference-c9d9b8b8', 'Max Hunter', '');

// create field on page 4
$signatureField = $signatoryMax->addField('Please sign here', 4);

// move field in position using percentages

// you can set width/height as well

// send changes to API

// and then some pseudo-code to get the picture
$email = new MyEmailClientWrapper();
$email->to('Max Hunter', '');
$email->body('Hi Max. Please sign this: ' . $signatoryMax->getSignatureLink());


composer require retech/sign-me


This package is a one-stop solution for all your remote signMe needs. It's functionality can be divided into three categories:

pure API

In order to use the public REST-API, method-wrappers simplify your calls. All of these methods return the result as assoc-array on success and throw the Exception Retech\Celest\SignMe\Exceptions\ConnectionException when things go wrong.


argument type required
$clientId string no (reads from env)
$apiKey string no (reads from env)

The method establishes authentication using the environment variables SIGN_ME_CLIENT_ID and SIGN_ME_API_KEY. Alternatively, you can pass in your clientId & ApiKey directly.

$client = new SignMeClient();


argument type required
$url string yes

Execute GET-calls against the base-uri

$myDocument = $client->get('documents/123-123-123-1231-123123123');


argument type required
$url string yes
$payload array no

Execute POST-calls against the base-uri

$myReference = 'user-123-345-523-93645'
$newSignatory = $client->post('signature/123-123-123-1231-123123123', [
    'signerHash' => $myReference,
    'signerEmail' => ''


argument type required
$url string yes
$payload array yes

Execute PUT-calls against the base-uri

$webHookUrl = ''
$updatedDoc = $client->put('documents/123-123-123-1231-123123123', [
    'webhookUrl' => $webHookUrl


argument type required
$url string yes

Execute DELETE-calls against the base-uri

$success = $client->delete('documents/123-123-123-1231-123123123');

Easy Objects (OO)

Other than managing your transactions and company-settings, the use-case of the signMe API is predictable enough to make your day-to-day life easier with our object oriented interaction possibilities.


argument type required
$page int no (defaults to 1)
$documents = $client->getDocuments();
$totalPages = $documents['pages']; // e.g. 3
$allDocumentCount = $documents['total'] // e.g. 127
$newestDocument = $documents[documents][0] // Document (see Entities)


argument type required
$documentSlug string yes
$myDocument = $client->getDocument('d3373e45-f7bd-43dc-b48e-db5bca1a5493'); // Document (see Entities)


argument type required
$name string yes
$filePath string yes

Currently accepts PDF & DOCX only

$myDocument = $client->uploadDocument('Mike\'s car sale', __DIR__ . '/file.php'); // Document (see Entities)



  • getDownloadUrl(): null|string
  • getDownloadUrl(): null|string
  • getFinalInstructions(): null|string
  • setFinalInstructions(finalInstructions: null|string): void
  • getWebhookUrl(): null|string
  • setWebhookUrl(webhookUrl: null|string): void
  • getSlug(): string
  • getName(): string
  • getRequesterHash(): string
  • getFields(): array
  • getSignatures(): array
  • getSignature(signerHash: string): null|Signature
  • addSignatory(signerHash: string, [signerName: null|string = null], [signerEmail: null|string = null]): Signature
  • update(): Document


  • fields: array = [...]
  • documentSlug: string
  • getSignerHash(): string
  • getSignerName(): null|string
  • getSignerEmail(): null|string
  • getIp(): null|string
  • getSignedAt(): DateTimeImmutable|null
  • isSigned(): bool
  • setSignerName(signerName: null|string): void
  • setSignerEmail(signerEmail: null|string): void
  • addField(label: string, [page: int = 1], [type: string = 'signature']): Field
  • getSignatureLink(): string


  • setType(type: string): void
  • setSignerHash(signerHash: string): void
  • setPage(page: int): void
  • setX(x: float): void
  • setY(y: float): void
  • setWidth(width: float): void
  • setHeight(height: float): void
  • setLabel(label: null|string): void
  • getLabel(): null|string
  • getHeight(): float
  • getWidth(): float
  • getY(): float
  • getX(): float
  • getPage(): int
  • getSignerHash(): string
  • getType(): string
  • update(): Field
  • delete(): void

Webhook Reader

Lastly, let's have a quick look at the webhook validation tool included in this package

$webHook = new Retech\Celest\SignMe\WebHookValidator($mySignatureSecret);
} catch (WebhookValidationException $e){
    // malicious!! 

// readonly properties (available after validate() or parse())

$event = $webHook->event; // Retech\Celest\SignMe\Enums\Event e.g Event::UPDATE
$entity = $webHook->entity; // Retech\Celest\SignMe\Enums\Entity e.g. Entity::DOCUMENT
$slug = $webHook->slug;

// payload
$payload = $webHook->parse();

if($webHook->entity === Entity::DOCUMENT && $payload->isCompleted()){
    // all signatures are valid
} elseif ($webHook->entity === Entity::DOCUMENT) {
    // apparently some signatures are outstanding
    $signatures = $payload->getSignatures(); // e.g. [['ip' => null, 'time' => null, 'signerHash' => '123-123-123-k']]
    // or let's get the doc
    $sdk = (new SignMeClient())->authenticate();
    $document = $sdk->getDocument($webHook->slug);


Before the official release, no public support is provided.