> ## Documentation Index > Fetch the complete documentation index at: https://docs.konnectnxt.com/llms.txt > Use this file to discover all available pages before exploring further. # E-Sign Generate API > Generate an Aadhaar e-sign request and send signing link to the signer via email and SMS. ### Invitees List of invitees who will receive the e-sign request. * A minimum of **1** and a maximum of **2 invitees** are allowed. * The **order of invitees in the list determines the signing sequence**. * The **first invitee** will receive the signing request and must complete signing first. * After the first invitee signs the document, the **second invitee (if provided)** will automatically receive a notification to proceed with signing. This ensures a **sequential signing workflow** where each signer is notified only after the previous signer completes their action. ### Callback URL To receive status of e-signing as each signer takes action on the links shared to them. Make sure this is a HTTPS Webhook URL accepting POST request with request body and allows any hosts with CSRF excemption to recieve the event properly. Structure of the payload on the event webhook will be same as the response for he retrieve API. Please refer to the E-sign retrieve api for more information on the event payload structure. ## OpenAPI ````yaml POST /esign/generate/ openapi: 3.0.0 info: title: KonnectNXT API Store description: >- A sample API that uses a plant store as an example to demonstrate features in the OpenAPI specification license: name: MIT version: 1.0.0 servers: - url: https://bgv.konnectnxt.com/api description: Production - url: https://testbgv.konnectnxt.com/api description: QA security: - bearerAuth: [] paths: /esign/generate/: post: tags: - E-Sign summary: Generate E-Sign request description: >- Creates an Aadhaar e-sign request for the provided document and sends signing links to up to two invitees via email and SMS. operationId: generateEsignRequest requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/EsignGenerateRequest' examples: Example: summary: Basic E-Sign generate request with multiple invitees value: file_name: offer_letter.pdf file_base64: JVBERi0xLjcKCjQgMCBvYmoKPDwKL0JpdHNQZXJDb21wb25lbnQgOAov... status_callback_url: https://yourcompany.com/callback invitees: - esigner_name: John Doe esigner_email: john@example.com esigner_phone: '9874563210' - esigner_name: Alice esigner_email: alice@example.com esigner_phone: '8974521532' responses: '201': description: E-Sign link generated successfully content: application/json: schema: $ref: '#/components/schemas/EsignGenerateSuccessResponse' examples: Success: summary: Successful E-Sign generation value: code: 201 status: success message: >- E-Sign link generated successfully and sent to signer's email and phone. data: request_id: 53ecfa78-2bb0-48a0-a4f3-d1caa1e79b35 esign_doc_id: 01KH6407707YBFWJ642WRWC5D3 esign_url: >- https://app1.leegality.com/sign/241d83bd-56df-49c6-8635-97c2c7bfde78 expires_at: '2026-02-21T18:29:59Z' '400': $ref: '#/components/responses/BadRequestError' '401': $ref: '#/components/responses/UnauthorizedError' '500': $ref: '#/components/responses/InternalServerError' components: schemas: EsignGenerateRequest: type: object required: - file_name - file_base64 - invitees properties: file_name: type: string description: Name of the PDF file to be signed file_base64: type: string description: Base64 encoded PDF file content status_callback_url: type: string description: >- HTTPS URL accepting POST requests on it. Here you'll recieve the status of the document signing as the signers take action and completes the siging process. The event will send the data in the same format as the retrieve APIs response. Please refere to E-sign Retrieve API for more info. invitees: type: array description: >- List of invitees who will receive the e-sign request (maximum 2 allowed). First invitee will sign the doc and then the second will get the notification to proceed further signing. minItems: 1 maxItems: 2 items: type: object required: - esigner_name - esigner_email - esigner_phone properties: esigner_name: type: string example: John Doe esigner_email: type: string format: email example: signer@email.com esigner_phone: type: string description: 10 digit Indian phone number example: '9874563210' EsignGenerateSuccessResponse: type: object required: - code - status - message - data properties: code: type: integer example: 201 status: type: string example: success message: type: string example: >- E-Sign link generated successfully and sent to signer's email and phone. data: type: object required: - request_id - esign_doc_id - esign_url - expires_at properties: request_id: type: string description: Unique identifier for tracking this e-sign request example: 53ecfa78-2bb0-48a0-a4f3-d1caa1e79b35 esign_doc_id: type: string description: Document ID assigned by the e-sign provider example: 01KH6407707YBFWJ642WRWC5D3 esign_url: type: string format: uri description: URL where the signer can access and sign the document example: >- https://app1.leegality.com/sign/241d83bd-56df-49c6-8635-97c2c7bfde78 expires_at: type: string format: date-time description: Expiration timestamp of the e-sign link example: '2026-02-21T18:29:59Z' ErrorResponse: type: object properties: status: type: string example: error code: type: integer example: 400 message: type: string example: Validation failed errors: type: object additionalProperties: true responses: BadRequestError: description: Bad request - validation error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' UnauthorizedError: description: Unauthorized - authentication failed content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' InternalServerError: description: Unexpected system error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' securitySchemes: bearerAuth: type: http scheme: bearer description: >- API key issued by KonnectNXT. Pass as `Authorization: Bearer `. ````