Creating something similar to ASP.NET Web API in NODE-RED.

[Yogesh]

I am a newbie to the node-red world. I am currently working on a project where I want to expose something similar to a Web API in ASP.NET in my Node-Red flow. I know I could use the Input HTTP Node to use it like a Web Server, but beyond that I am not sure how best to wire it to something similar to a method that can handle GET, PUT requests and expect some input parameters. I have done this using Express using node.js, but not sure how to translate similar functionality in NODE-RED. Any suggestions are greatly appreciated.

Thanks,

Yogesh

[Dave C-J]

This may be slightly more complex than you need - as it also includes live updates over websockets...

but

http://flows.nodered.org/flow/8666510f94ad422e4765

[Yogesh]

Thanks Dave for your quick response. Although I may not need the web sockets part of it, since I don't need any real time status updates. All I want to do is able to send a json object back when they call a specific api on a get request and able to receive json object/binary data if possible when the call is a post/put based API call, if that made sense. 

In the Get request in your flow, I see you are sending an html using the template node, does it automatically set the content-type header and the http status in that case, since i want to be able to return a JSON object instead of an html.

Thanks,

Yogesh

[Dave C-J]

Hi

if you look at the info page for the http response object - you can pass in msg.headers - which can be an object with whatever headers you required to set - so  you would need to set msg.header to  {"Content-Type":"application/json"}

[Nicholas O'Leary]

But if msg.payload is a JavaScript object, and msg.headers['content-type'] isn't set, then we assume you wanted to send it as JSON and set the header for you... we're nice like that.

Nick

On 4 January 2016 at 22:30, Dave C-J <dce...@gmail.com> wrote:

Hi

if you look at the info page for the http response object - you can pass in msg.headers - which can be an object with whatever headers you required to set - so  you would need to set msg.header to  {"Content-Type":"application/json"}

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