Need Basic CURL POST Request & HTTP Header Assistance - http

I've tried this every which way, but, I cannot seem to get the syntax right (though I can make it work through a website such as hurl.it). I'm trying a basic HTTP POST request with CURL and I need it to do the following:
1.) Be able to do a very basic non-oauth login (username and password) to http://www.fake.site/create
2.) Send over a few HTTP headers such as "Host, Connection, Content-Length, User-Agent, etc."
3.) Be able to pass over 1 parameter in this format {"guid":"","style":"The Style Here"}
4.) Be able to follow a redirect(s)
I would appreciate any assistance you may have--I have literally been to over 5 pages of Google results and I just hit a snag at ever turn with my CURL code.
Help and Thank you!

curl -X POST -L
-u "auth-User:auth-password"
-d "{\"guid\":\"\",\"style\":\"The Style Here\"}"
-H "Content-Type: application/json"
"http://www.fake.site/create"
You can add more headers through -H parameter if you want.

Related

Creating URL with headers

I can curl a website URL by passing on some header params. I am trying to get the same result on the browser but I cannot build the URL for the browser in the right way.
My curl looks something similar
curl -X GET -u 'xyz#gmail.com' -H "app-key: some-keys" -H "account-email: procurement#gmail.com" -H 'Content-Type: application/json' -d 'paused=false' https://api.pingdom.com/api/2.1/checks
When prompted for the password, i can give the password and Iget the JSON response.
Now I try to build the same URL on my browser. The browser prompts for user name and password which I have already given.
Now my URL looks like this.
https://api.pingdom.com/api/2.1/users?account-email=procurement#gmail.com&app-key=some-key
I get a forbidden (as JSON reponse) when I try from the browser and from Curl I get the proper JSON response.
How can I add header params to a URL when pinging from the browser?
How can I add header params to a URL when pinging from the browser?
That's not possible. Besides it, from the browser address bar you won't be able to use HTTP methods other than GET.
So I advise you to you proper tools to target/test your Web API such as Postman or Paw.

Clarifai API and cURL?

I'm following Clarifai's guide to make a cURL request and get the tags related to the image.
In the guide it says that I can do either this:
curl "https://api.clarifai.com/v1/tag/?url=https://samples.clarifai.com/metro-north.jpg" \
-H "Authorization: Bearer {access_token}"
or this:
curl "https://api.clarifai.com/v1/tag/" \
-X POST --data-urlencode "url=https://samples.clarifai.com/metro-north.jpg" \
-H "Authorization: Bearer {access_token}"
So what I do is that I type in the access token that I get when I create a new application and I change the link of "samples.clarifai.com" for a random link of a random image, but every time I want to do this I get the following message on terminal:
{"status_code": "TOKEN_INVALID", "status_msg": "Token is not valid. Please use valid tokens for a application in your account."}
Any idea why I keep getting this eben though my access token is right?
Thanks!
Just so there can have an official answer for this but Marcus Müller is totally right.
You should be sure to remove the braces with the Bearer access token. But you still want to be sure everything else is fine. This does assume though that you have generated a proper access token either by the Developer Documentation or within your Applications page once you have logged in.

How do I find the correct url to send curl POST request to?

I am trying to use curl to send a POST request with json.
I use Live HTTP Headers and get the url to send the request to. However it comes back "request denied. you do not have permission to access this page?"
How do I find the correct url?
from Live Http headers, i can see the json data {"var1":"val1","var2":"val2",...}
so i use the following curl command:
curl -H "Accept: application/json" -H "Content-type: application/json" -o output.html -L "http://domain.com/theurl" -d '{"var1":"val1","var2":"val2",...}'
There may be other parts of the request you observed using Live HTTP Headers that allowed your browser to access that URL, such as a cookie value that indicated your session information or user credentials. If Live HTTP Headers has the ability to view those headers and/or cookies, you could grab them and include them in your curl request using additional -H 'Header: value' arguments.
HTTP Authentication may also be used, in which case you should pass your username and password to curl with --user name:password.

How to test multipart/form-data POST request

I am trying to find a tool that will allow me to test a multipart/form-data POST request and tweak the request. Specifically, I want to test the absence/presence of the semi-colon in the content-type header:
multipart/form-data; boundary=140f0f40c9f411e19b230800200c9a66
We have a client that doesn't send a semi-colon and our new servlet (using Apache Commons FileUpload) can't parse the uploaded file. The old version of our servlet uses a different library method for accepting/parsing the request and it can parse the file. Until I can prove that the request will be successful by including the semi-colon, the owners of the client app don't want to make any changes to it.
I have been using cURL to run my tests against the servlet, but I can't tweak the request it generates to exclude the semi-colon. I have tried the Poster addon for Firefox and Fiddler to generate a test POST request, but they result in this error:
org.apache.commons.fileupload.FileUploadException: Stream ended unexpectedly
Has anybody found a way to successfully test a multipart/form-data POST request with an uploaded file?
You can use curl for testing these libraries, here's an example using a multipart/form-data POST: https://stackoverflow.com/a/10765244/72176
One thing I like about a command-line tool like curl is it's easy to repeat (in bash, up & enter), and you can save the test for later.
Edit: It is definitely possible to send the custom header that you want to test. The key is to use curl's raw commands over the convenience methods which format the request for you. Use -H to pass in the raw header, and use --data-binary to pass in the body from a file without changing the line endings (very important for multipart/form-data which must have CRLF line endings). Here's an example:
curl -X POST -H "Content-Type: multipart/form-data; boundary=----------------------------4ebf00fbcf09" --data-binary #test.txt http://localhost:3000/test
of if it's more convenient not to use the intermediary file, you can write it one line like so:
curl -X POST -H "Content-Type: multipart/form-data; boundary=----------------------------4ebf00fbcf09" -d $'------------------------------4ebf00fbcf09\r\nContent-Disposition: form-data; name="example"\r\n\r\ntest\r\n------------------------------4ebf00fbcf09--\r\n' http://localhost:3000/test
These 2 examples include the semicolon, but you can remove it as needed.

Translating from cURL to straight HTTP requests

What would the following cURL command look like as a generic (without cURL) http request?
feedUri="https://www.someservice.com/feeds\
?prettyprint=true"
curl $feedUri --silent \
--header "GData-Version: 2"
For example how could such an http request be expressed in the browser address bar? Partucluarly, how do I express the --header information if I were to just type out the plain http request?
I don't know of any browser that lets you specify header information in the address bar. I believe there are plug-ins that let you do this, but I don't have any experience with them.
Here is one for firefox that looks promising:
https://addons.mozilla.org/en-US/firefox/addon/967
Basically what you want to do is not a standard browser feature.

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