NodeJS User Login & Purchase System & Integration to Stripe & Hellosign API

We wish to integrate Hellosign API [login to view URL] into a NodeJS single page app for signing documents for our customers. We are building a lightweight MVP to test a business concept so the use of prewritten NPM codes or libraries or shopping trolleys is encouraged as is the use of Zapier or other automation services to reduce custom coding wherever possible. Essentially the work steps are - Payment with Stripe API - Customer Signup - Create a new account and add their contact details + company + email - User adds email of new contractor - Send new contractor Hellosign email request and link - Document to be signed has company details prefilled - Contractor adds their name, address and signs document - Document is emailed to both parties - Document is stored on google drive via zapier - Email is added to mail chimp and Nimble CRM via zapier - Document is available on the users account dashboard for future reference By bidding you agree to - Agree to assign all rights for any work generated during this project - Document all work including the source code and any operations and deployment methods required in a step by step method - Update your progress on Slack daily - Provide an hourly timesheet including the tasks with your invoice