| keywords: docType:Overview,docType:Guide,docType:ApiReference,category:FuchsiaDevelopment,category:FuchsiaFidl |
| keywords_public: FIDL, calculator, example, protocol, tutorial, Fuchsia, development |
| description: This document provides an overview of a basic FIDL calculator example, serving as a starting point for learning how to construct and iterate on FIDL protocols in Fuchsia. |
| <!-- These keywords are for search widget on fuchsia.dev. Do not remove. --> |
| |
| # FIDL example: Calculator |
| |
| This Calculator example shows how to construct a FIDL protocol with |
| bare-minimum functionality. You will build on this example by modifying the |
| methods to potentially return errors, composing a FIDL protocol with another, |
| and showing usage of other primitives. |
| |
| ## Getting started {#baseline} |
| |
| <<_baseline_tutorial.md>> |
| |
| ## Improving the design {#variants} |
| |
| Each of the following sections explores one potential way that you could iterate |
| on the original design. Rather than building on one another sequentially, each |
| presents an independent way in which the base case presented above may be |
| modified or improved. |
| |
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