# Technical writing internships: build a usable portfolio

## Valid JSON, invalid application input

A fictional application requires a positive numeric amount and the currency USD. Its documentation also tells users to check JSON syntax.

### Two checks with different purposes

| Input | Syntax | Application rules |
| --- | --- | --- |
| {"amount": 12, "currency": "USD"} | Valid JSON | Meets the two stated rules |
| {"amount": "twelve", "currency": "ZZZ"} | Valid JSON | Wrong amount type and unsupported currency |

## Your turn

A formatting command accepts both files. What should the documentation say instead of 'Your data is now valid'?

## Your answer

[Write your approach here.]

## For your own application

Name what each success signal actually proves.

Return to the guide for the worked answer and source notes:
https://internshipdeadlines.com/guides/technical-writing-internship-portfolio