Calling REST APIs from Node-RED

A common Node-RED API pattern is an Inject node feeding an HTTP Request node, followed by processing and debugging.

Inject → HTTP Request → Function → Debug

HTTP methods

GET is commonly used to retrieve data. POST and PUT are used when sending data to an API, while DELETE is used to remove a resource when the API supports it.

Authentication

APIs may use bearer tokens, API keys, basic authentication or other mechanisms. Never publish real credentials inside a public flow or article.

Use the REST API Builder to generate a starter flow.