Electronic Signature
Developers
Features
API for eSignature Solutions
Collect payments along with signed documents with C# Client for API

Collect payments along with signed documents with C# Client using the API

Use the airSlate SignNow API to get more out of eSignature workflows. Add functionality to your app that allows users to collect payments via payment systems along with signatures.

Free to test
Fast to deploy
Powerful & secure

Request payments using a signature invite

Use this sample code to embed payment requests into your apps.

Node.js

C#

Python

Copy code

public class SendInviteModel
    {
        public IEnumerable<To> to { get; set; }
        public string from { get; set; }
        public object[] cc { get; set; }
        public string subject { get; set; }
        public string message { get; set; }
    }
 
    public class To
    {
        public string email { get; set; }
        public string role_id { get; set; }
        public string role { get; set; }
        public int order { get; set; }
        public string authentication_type { get; set; }
        public string password { get; set; }
        public int expiration_days { get; set; }
        public int reminder { get; set; }
        public string method { get; set; }
        public string phone { get; set; }
    }
public class SignatureInvitePaymentModel : SendInviteModel
    {
        public string document_id { get; set; }
        public string on_complete { get; set; }
        public new IEnumerable<PaymentInviteRecipient> to { get; set; }
    }
 
    public class PaymentInviteRecipient : To
    {
        public string reassign { get; set; }
        public PaymentRequest payment_request { get; set; }
        public string decline_by_signature { get; set; }
        public string subject { get; set; }
        public string message { get; set; }
    }
 
    public class PaymentRequest
    {
        public string type { get; set; }
        public int amount { get; set; }
        public string currency { get; set; }
        public string merchant_id { get; set; }
    }
public static void MakeSignInvitePaymentRequest(string accessToken, string apiUrl, string documentId, SignatureInvitePaymentModel dataObj, bool disableEmail = false)
        {
            var client = new RestClient { BaseUrl = new Uri(apiUrl) };
            var mechantId = String.Empty;
 
            //Make invite & payment request
            var disable = (disableEmail) ? "?email=disable" : "";
            var request = new RestRequest("/document/" + documentId + "/invite" + disable, Method.POST)
                .AddHeader("Accept", "application/json")
                .AddHeader("Authorization", "Bearer " + accessToken);
 
            request.AddJsonBody(JsonConvert.SerializeObject(dataObj));
 
            var response = client.Execute(request);
            if (response.StatusCode != HttpStatusCode.OK)
            {
                throw new Exception($"Cannot send invite: {response.Content}");
            }
        }

import signnow_python_sdk

if __name__ == '__main__':
    signnow_python_sdk.Config(client_id="CLIENT_ID",
                              client_secret="CLIENT_SECRET",
                              environment="production")

# Enter your own credentials
    username = "USER_NAME"
    password = "USER_PASSWORD"
    template_id = "TEMPLATE_ID"

# Create access_token for the user
    access_token = signnow_python_sdk.OAuth2.request_token(username, password, '*')

invite_payload = {
        "document_id": 'DOCUMENT_ID_GOES_HERE',
        "to": [
            {
                "email": 'EMAIL_OF_SIGNER',
                "role": 'Signer 1',
                "role_id": '',
                "order": 1,
                "reassign": 0,
                "decline_by_signature": 0,
                "reminder": 4,
                "expiration_days": 27,
                "subject": 'Field invite Signer1',
                "message": 'Message',
                "payment_request": {
                    "type": 'fixed',
                    "amount": 12,
                    "currency": 'US Dollar',
                    "merchant_id": 'MERCHANT_ID',
                 },
            },
        ],
        "from": 'EMAIL_OF_SENDER',
    };

# Create a document from the template
    doc_id = signnow_python_sdk.Template.copy(access_token['access_token'], template_id, "New Doc From Template")

# Send signature invite
    invite_response = signnow_python_sdk.Document.invite(access_token['access_token'], doc_id['id'], invite_payload)

We provide developers with complete SDKs for all popular languages, allowing them to integrate eSignature workflows without writing a single line of code.
With our detailed documentation, integrating the airSlate SignNow API is a breeze.
The airSlate SignNow API not only provides you with eSignatures: use it to create fillable forms, request payments, and download & archive documents using simple API calls.

View full API reference

airSlate SignNow regularly wins awards for ease of use and setup

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Tech Data uses airSlate SignNow to improve our internal and external customer service while increasing our speed to revenue.

Bob Dutkowsky | CEO

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Solution engineers

We are here to help you configure eSignature API to your workflow.

Review airSlate SignNow’s API documentation

The detailed API tutorial will guide you through the entire integration process and provide clear coding examples.

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PHP, Java, C#.

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airSlate SignNow is committed to protecting your sensitive information by complying with global industry-specific security standards.

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21 CFR Part 11

FDA-backed standards for electronic documentation and electronic signatures.

HIPAA compliance

Protects the private health information of your patients.

CCPA compliance

Enhances the protection of personal data and the privacy of California residents.

Watch the airSlate SignNow API in action

Evaluate airSlate SignNow's collect payments along with signed documents with c client for api

The airSlate SignNow API equips organizations with a distinct range of capabilities that foster more efficient operational processes. Discover the advantages of our collect payments along with signed documents with c client for api by signing up for a complimentary Sandbox account.

Proceed with these instructions to establish a Sandbox account:

Visit the airSlate SignNow Developers portal. Here, you can find additional information about the API and register for your Sandbox account.
Register for a trial. Enter your email address and click the Create API sandbox button to initiate registration.
Verify your email address. Access the email you receive and follow the link to verify your email address.
Access Developer Sandbox. Set a password to allow further access to your developer account.
Add an application. Click Add App, assign a name to your app, and click Add to store changes. The API token for the application will be generated automatically.
Examine collect payments along with signed documents with c client for api. Investigate all airSlate SignNow features and how they can improve your business operations.

Adhere to these steps to explore airSlate SignNow's capabilities. You can reach out to the support team if you have any inquiries. Optimize your business workflows with airSlate SignNow today.