digital-drifter / code-challenge

About

This application provides a service to send invitations via text message or email.

A user uploads a csv formatted file and each row is processed according to the following user data:

1. send a text message invitation if a phone number is provided.
2. send an email invitation if no phone is provided but a valid email address is present.
3. don't send an invitation if the transaction date is outside the seven (7) day date range.
4. don't send duplicate invitations.

Usage

1. A user is initially presented the following screen:

2. A file dialog prompt is displayed to select a csv for upload:

3. Upon selecting the csv file and clicking Upload, the results are displayed:

4. Click Download CSV to download a csv formatted version of the tabular data:

Sample Output

See: invite-results.csv