# Writing a canary script
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The following sections explain how to write a canary script and how to integrate a canary with other AWS services and with external dependencies and libraries.

**Topics**
+ [Writing a canary script using the Java runtime](Synthetics_WritingCanary_Java.md)
+ [Writing a Node.js canary script using the Playwright runtime](Synthetics_WritingCanary_Nodejs_Playwright.md)
+ [Writing a Node.js canary script using the Puppeteer runtime](CloudWatch_Synthetics_Canaries_WritingCanary_Nodejs_Pup.md)
+ [Writing a Python canary script](CloudWatch_Synthetics_Canaries_WritingCanary_Python.md)
+ [Writing a JSON configuration for Node.js multi Checks blueprint](CloudWatch_Synthetics_WritingCanary_Multichecks.md)