HTTP 413 with a 1.29KB POST?

General
1

I have an Http In node which fails to accept a 1.29KB POST resulting with this error:

PayloadTooLargeError: too many parameters
at queryparse (/usr/src/node-red/node_modules/body-parser/lib/types/urlencoded.js:151:13)
at parse (/usr/src/node-red/node_modules/body-parser/lib/types/urlencoded.js:75:9)
at /usr/src/node-red/node_modules/body-parser/lib/read.js:121:18
at invokeCallback (/usr/src/node-red/node_modules/raw-body/index.js:224:16)
at done (/usr/src/node-red/node_modules/raw-body/index.js:213:7)
at IncomingMessage.onEnd (/usr/src/node-red/node_modules/raw-body/index.js:273:7)
at IncomingMessage.emit (events.js:203:15)
at endReadableNT (_stream_readable.js:1145:12)
at process._tickCallback (internal/process/next_tick.js:63:19)

It' 1.0.4, but it used to work with pre-1.0 versions, so I'm stumped :slight_smile:

2

This means you are sending over 1000 parameters as part of the post request - which does seem quite excessive.

Between pre-1.0 and 1.0 we would have upgraded the various modules that handle the incoming requests. I can only assume something in there has changed its behaviour in this area.

The module in question does allow this limit to be changed - but we don't expose it in any meaningful way: body-parser/README.md at master · expressjs/body-parser · GitHub

Are you able to change it to send them as the body of the POST rather than query params?

3

The post is made like this:

    $.ajax({
            url: url,
            type: "POST",
            dataType: "json",
            data: {
	    action: "upload",
	    data: some_array,
	    year: year,
	    month: month,
	    day: day,
	    uid: uid,
	    gid: gid,
	    sid: sid
            },
	success: function(data, textStatus, jqXHR) {
	    alert("OK");
	}});
4

At some point you may have to read the jquery api docs for yourself to figure this out...

Maybe try:

$.ajax({
            url: url,
            type: "POST",
            dataType: "json",
            data: JSON.stringify({
  	    action: "upload",
	    data: some_array,
	    year: year,
	    month: month,
	    day: day,
	    uid: uid,
	    gid: gid,
	    sid: sid
            }),
	success: function(data, textStatus, jqXHR) {
	    alert("OK");
	}});
5

Well from https://api.jquery.com/jQuery.ajax/ "data" can be a "PlainObject"
And it works now with first "data" as an object and second data = JSON.stringify(some_array)

6

Or, from the same page, you could add:

contentType: "application/json"

which tells it to send the data as JSON encoded data in the body, rather than its default behaviour of encoding as query params.

7

Well I'm pretty sure it used to work like this :slight_smile:... Pre-1.0.

8

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