Electronic Signature
Developers
Features
API for eSignature Solutions
Embed eSignature workflows into your app or website with C# SDK for API

Embed eSignature workflows into your app or website with C# SDK using the API

Streamline document approval and allow your customers to manage documents in the most convenient way. With airSlate SignNow’s API, they can embed eSignature workflows into a workspace they’re already familiar with.

Free to test
Fast to deploy
Powerful & secure

Allow customers to manage and eSign documents from anywhere

Use the sample code to embed an eSignature workflow into a third party app or website and make it accessible even to non-airSlate SignNow users.

Node.js

C#

Java

Python

cURL

Copy code

'use strict';
 
const signnow = require('@signnow/api-client')({
  credentials: 'BASE64_ENCODED_CLIENT_CREDENTIALS',
  production: true, // if false then uses eval server
});
const sendInvite = signnow.template.invite;
 
const id = 'TEMPLATE_ID_GOES_HERE';
const token = 'YOUR_ACCESS_TOKEN';
 
/**
 * @typedef {Object} SignerSettings
 * @property {string} email - signer's email
 * @property {string} role - ole name
 * @property {number} order - role signing order
 * @property {string} reassign - allow reassign signer
 * @property {string} decline_by_signature - signer can decline invite
 * @property {number} reminder - remind via email in days
 * @property {number} expiration_days - expiration of invite in days
 * @property {string} [subject] - specify subject of email
 * @property {string} [message] - specify body of email
 */
 
/**
 * @type {Object}
 * @property {string} document_id
 * @property {SignerSettings[]} to - array of signers
 * @property {string} from - email of sender
 * @property {string[]} [cc] - array with emails
 * @property {string} [subject] - specify subject of email
 * @property {string} [message] - specify body of email
 * @property {string} [on_complete] - on signing complete action
 */
const fieldInvite = {
  document_id: 'TEMPLATE_ID_GOES_HERE',
  to: [
    {
      email: 'EMAIL_OF_SIGNER',
      role: 'Signer 1',
      order: 1,
      reassign: '0',
      decline_by_signature: '0',
      reminder: 4,
      expiration_days: 27,
      subject: 'Field invite Signer1',
      message: 'Message',
    },
  ],
  from: 'EMAIL_OF_SENDER',
};
 
/**
 * @param {Object} res
 * @param {string} res.status - e.g. 'success'
 */
const handleResponse = res => {
  console.log(res);
};
 
const handleError = err => {
  console.error(err);
};
 
sendInvite({
  data: {
    ...fieldInvite,
  },
  id,
  token,
}, (err, res) => {
  if (err) {
    handleError(err);
  } else {
    handleResponse(res);
  }
});

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 partial class RestSharpSamples
    {
        public static void SignatureInviteFromTemplate(string accessToken, string apiUrl, string templateId, SendInviteModel dataObj, string documentName = "", bool disableEmail = false)
        {
            var client = new RestClient { BaseUrl = new Uri(apiUrl) };
 
            var createDocumentrequest = new RestRequest("/template/" + templateId + "/copy", Method.POST)
                .AddHeader("Accept", "application/json")
                .AddHeader("Authorization", "Bearer " + accessToken);
 
            if (!string.IsNullOrEmpty(documentName))
            {
                createDocumentrequest.RequestFormat = DataFormat.Json;
                createDocumentrequest.AddBody(new { document_name = documentName });
            }
 
            var createDocumentResponse = client.Execute(createDocumentrequest);
 
            if (createDocumentResponse.StatusCode != HttpStatusCode.OK)
            {
                throw new Exception($"Can't create document from template. {createDocumentResponse.Content}");
            }
 
            var document = JsonConvert.DeserializeObject<CreateResponseModel>(createDocumentResponse.Content);
 
            var disable = (disableEmail) ? "?email=disable" : "";
            var request = new RestRequest("/document/" + document.id + "/invite" + disable, Method.POST)
                .AddHeader("Accept", "application/json")
                .AddHeader("Authorization", "Bearer " + accessToken);
 
            request.RequestFormat = DataFormat.Json;
            request.AddBody(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, '*')

to = [{
        "email": "testemail@signnow.com",
        "role_id": "",
        "role": "Signer 1",
        "order": 1
    }]

invite_payload = {
        "to": to,
        "from": username
    }

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

# Get document data
    document_data = signnow_python_sdk.Document.get(access_token['access_token'], doc_id['id'])

# 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

Select an API package for your business

Integrate eSignatures into your software and get 250 legally-binding signature invites with your API free trial.

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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.

Video guides

Watch our video guides for instructions on how to easily build custom integrations.

Start with any of our SDKs

Get complete SDKs for Node.js, Python,
PHP, Java, C#.

Enterprise-grade security and compliance

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

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PCI DSS certification

Safeguards credit/debit card data for every monetary transaction a customer makes.

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 embed e signature workflows into your app or website with c sdk for api

The airSlate SignNow API equips organizations with a distinctive array of features that facilitate more streamlined business operations. Explore the benefits of our embed e signature workflows into your app or website with c sdk for api through a complimentary Sandbox account.

Adhere to these instructions to establish a Sandbox account:

Visit the airSlate SignNow Developers webpage. There, you can discover additional information about the API and set up your Sandbox account.
Enroll for a trial. Provide your email address and click the Create API sandbox button to sign up.
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 entry to your developer account.
Add an application. Click Add App, designate a name for your app, and click Add to save changes. The API token for the app will be created automatically.
Evaluate embed e signature workflows into your app or website with c sdk for api. Uncover all airSlate SignNow features and how they can enhance your business workflows.

Stick to these instructions to assess airSlate SignNow's features. You can reach out to the support team if you have any inquiries. Improve your business workflows with airSlate SignNow today.

How it works

Create an account and get the required tokens

Use code samples to embed eSignature workflows into your app or website with C# SDK using the API

Enjoy the power of eSignature in your workflows

Watch our instructions to build custom integrations with ease

airSlate SignNow offers a free testing environment to explore the eSignature.

Trusted eSignature solution — what our customers are saying

Explore how the airSlate SignNow eSignature platform helps businesses succeed. Hear from real users and what they like most about electronic signing.

This service is really great! It has helped...

5

anonymous

This service is really great! It has helped us enormously by ensuring we are fully covered in our agreements. We are on a 100% for collecting on our jobs, from a previous 60-70%. I recommend this to everyone.

Read full review

I've been using airSlate SignNow for years (since it...

5

Susan S

I've been using airSlate SignNow for years (since it was CudaSign). I started using airSlate SignNow for real estate as it was easier for my clients to use. I now use it in my business for employement and onboarding docs.

Read full review

Everything has been great, really easy to incorporate...

5

Liam R

Everything has been great, really easy to incorporate into my business. And the clients who have used your software so far have said it is very easy to complete the necessary signatures.

Read full review