i' m a bit new to Node, so question may be stupid...
I am sending a POST request to a website (through http.request) and I want to be able to use the invisible POST data I get along the response.
I hope this is achievable, and I think so since I am able to preview those data in Chrome debugger.
PS : I understand that we can use BodyParser to parse and get those while listening for a POST call server side, but I have found no example of how to use it coupled with an http.request.
Thanks !
If the body of the HTTP response contains JSON, then you need to parse it first in order to turn it from a string into a JavaScript object, like this:
var obj = JSON.parse(body);
console.log(obj.response.auth_token);
More info on various ways of sending a POST request to a server can be found here: How to make an HTTP POST request in node.js?
Edit : So we figured it out in the comments. The value I needed was in the form to begin with, as a hidden field. My error was to think it was generated afterward. So I'll just grab it first then login, so I can use it again for future POST requests on the website.
Related
not sure if I picked the right terminology, what I want to do is the following:
A node.js module receives http requests of all kinds (GET, PUT, POST ...). It should take these requests and route them to a different URL but keep all other input parameters as it received it.
The response coming in should then be handed back to the calling party.
I realized it with express and https modules for a simple GET and it worked. Before I start coding down the remaining stuff I was wondering if there is a module available for such a URL "redirect"?
Example:
http://server1/api/[parameters] + [body] => https://server2/api/[parameters] + [body]
and handing the response back.
Hope I was able to explain.
To redirect someone to another url you can use the code below:
response.writeHead(302, {
'Location': 'your/404/path.html'
//add other headers here...
});
response.end();
with this response you must also include the appropriate status code for redirection(301, 303) according to your situation.
You can see full list of status codes here:
https://developer.mozilla.org/en-US/docs/Web/HTTP/Status
I'm trying to validate a webhook via facebook. So facebook hits my url my-url/facebook/receive within my route in nodejs i'd do res.send(req.query['hub.challenge']); to send an http response.
I'm using KoaJS. From what i understand, Koajs merges the request and response object into ctx but when reading through the docs I can't find anything along the lines of ctx.send or similar to send a http response.
Can anyone give me some direction or links.
Thanks.
To send the body of a response, you can simply do ctx.response.body = 'Hello'. There are many aliases attached to ctx, so you don't necessarily have to reference the response or request yourself. Doing ctx.body = 'Hello' would be the same as the code above.
If you wanted to set headers, you would use the ctx.set() method. For example: ctx.set('Content-Type', 'text/plain').
To access the query parameters, you would use ctx.request.query['some-key'] (or simply the alias ctx.query['some-key']).
All of the different request/response methods are documented pretty well at the Koa website along with a list of aliases attached to ctx. I highly recommend you give it a read.
Is it possible to use the request library in node to include a body for a get request? https://github.com/request/request#requestoptions-callback
It looks like the body option only works for POST/PUT/PATCH methods according to documentation. I was wondering if there was a known workaround for this. I know this is not conventional but the api that I will be hitting does accept a get request with a body and putting the data in query string is not an option because the url becomes too long. (I do not have the ability to implement api changes)
Turns out Node's request library does accept body in the get request although it doesn't mention it in the documentation. Just passing in options.body = {}, with options.json = true, worked great.
I am building a web api with Express and have not found information on accessing incoming custom request headers.
I will be expecting, for instance, that an incoming post request have a provider_identifier header. When I receive the request, I need to access that header information to validate their subscription.
Can someone point me in the right direction/provide advice on this?
router.post('myendpoint/', function(req, res){
var providerId = req.????;
});
Answering my own question here... was kindof a DUH moment for me.
Using above example, simply reference the headers collection like so:
var providerId = req.headers.provider_identifier;
One note: Use an underscore rather than a dash. "provider-identifier" doesn't work, but "provider_identifier" does.
I've setup a Node.js server that gets some contact form data and forwards it to my email. I'd like to be able to forward some information about the user's browser along with the form data.
Is any of that information contained in the request object in some form ? Kind of like the navigator.userAgent string that is available on the client ?
Or should I include that string in the data sent out, manually, myself?
I was thinking of something like :
var httpServer = http.createServer(function (request, response)
{
var browserID = request.navigator.userAgent;
});
Thanks!
I was testing this out myself in express, and you can find the user-agent string in:
request.header['user-agent']
and you can see it in the HTTP specification in 14.43 here.
In the future, you can simply examine the request object either with console.log() or with the debugger and see exactly what's in it. I find that is often ultimately more educational than trying to find things in documentation somewhere.