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37 lines
2.3 KiB
Plaintext
37 lines
2.3 KiB
Plaintext
:_content-type: ASSEMBLY
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[id="serverless-developing-nodejs-functions"]
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= Developing Node.js functions
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:context: serverless-developing-nodejs-functions
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include::_attributes/common-attributes.adoc[]
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toc::[]
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:FeatureName: {FunctionsProductName}
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include::snippets/technology-preview.adoc[leveloffset=+2]
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After you have xref:../../serverless/functions/serverless-functions-getting-started.adoc#serverless-create-func-kn_serverless-functions-getting-started[created a Node.js function project], you can modify the template files provided to add business logic to your function.
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[id="prerequisites_serverless-developing-nodejs-functions"]
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== Prerequisites
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* Before you can develop functions, you must complete the steps in xref:../../serverless/functions/serverless-functions-setup.adoc#serverless-functions-setup[Setting up {FunctionsProductName}].
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include::modules/serverless-nodejs-template.adoc[leveloffset=+1]
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[id="serverless-developing-nodejs-functions-about-invoking"]
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== About invoking Node.js functions
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When using the `kn` CLI to create a function project, you can generate a project that responds to CloudEvents, or one that responds to simple HTTP requests. CloudEvents in Knative are transported over HTTP as a POST request, so both function types listen for and respond to incoming HTTP events.
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Node.js functions can be invoked with a simple HTTP request. When an incoming request is received, functions are invoked with a `context` object as the first parameter.
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include::modules/serverless-nodejs-functions-context-objects.adoc[leveloffset=+2]
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include::modules/serverless-nodejs-function-return-values.adoc[leveloffset=+1]
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include::modules/serverless-testing-nodejs-functions.adoc[leveloffset=+1]
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[id="next-steps_serverless-developing-nodejs-functions"]
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== Next steps
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* See the xref:../../serverless/functions/serverless-functions-reference-guide.adoc#serverless-nodejs-context-object-reference_serverless-functions-reference-guide[Node.js context object reference] documentation.
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* xref:../../serverless/functions/serverless-functions-getting-started.adoc#serverless-build-func-kn_serverless-functions-getting-started[Build] and xref:../../serverless/functions/serverless-functions-getting-started.adoc#serverless-deploy-func-kn_serverless-functions-getting-started[deploy] a function.
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