multiple - How to POST JSON data with Curl from Terminal/Commandline to Test Spring REST?




curl post json php (14)

HTTPie is a recommended alternative to curl because you can do just

$ http POST http://example.com/some/endpoint name=value name1=value1

It speaks JSON by default and will handle both setting the necessary header for you as well encoding data as valid JSON. There is also:

Some-Header:value

for headers, and

name==value

for query string parameters. If you have a large chunk of data, you can also read it from a file have it be JSON encoded:

 [email protected]

I use Ubuntu and installed Curl on it. I want to test my Spring REST application with Curl. I wrote my POST code at Java side. However, I want to test it with Curl. I am trying to post a JSON data. An example data is like this:

{"value":"30","type":"Tip 3","targetModule":"Target 3","configurationGroup":null,"name":"Configuration Deneme 3","description":null,"identity":"Configuration Deneme 3","version":0,"systemId":3,"active":true}

I use this command:

curl -i \
    -H "Accept: application/json" \
    -H "X-HTTP-Method-Override: PUT" \
    -X POST -d "value":"30","type":"Tip 3","targetModule":"Target 3","configurationGroup":null,"name":"Configuration Deneme 3","description":null,"identity":"Configuration Deneme 3","version":0,"systemId":3,"active":true \
    http://localhost:8080/xx/xxx/xxxx

It returns this error:

HTTP/1.1 415 Unsupported Media Type
Server: Apache-Coyote/1.1
Content-Type: text/html;charset=utf-8
Content-Length: 1051
Date: Wed, 24 Aug 2011 08:50:17 GMT

The error description is this:

The server refused this request because the request entity is in a format not supported by the requested resource for the requested method ().

Tomcat log: "POST /ui/webapp/conf/clear HTTP/1.1" 415 1051

Any ideas about the right format of the Curl command?

EDIT:

This is my Java side PUT code (I have tested GET and DELETE and they work)

@RequestMapping(method = RequestMethod.PUT)
public Configuration updateConfiguration(HttpServletResponse response, @RequestBody Configuration configuration) { //consider @Valid tag
    configuration.setName("PUT worked");
    //todo If error occurs response.sendError(HttpServletResponse.SC_NOT_FOUND);
    return configuration;
} 

A bit late to the party, but I don't see this posted, so here goes, you could also put your json in a file and pass it to curl using --file-upload option via standard input, like this:

 echo 'my.awesome.json.function({"do" : "whatever"})' | curl -X POST "http://url" -T -

Create JSON file "MyData.json" and add content:

[
    {
        "Key_one": "Value_one",
        "Key_two": "Value_two",
        "Key_three": "Value_three"
    }
]

After this, you need to run following command:

curl -v -H "Content-Type: application/json" -X POST --data @MyData.json -u USERNAME:PASSWORD http://localhost:8000/env/add_server

For Windows, having a single quote for the -d value did not work for me, but it did work after changing to double quote. Also I needed to escape double quotes inside curly brackets.

That is, the following did not work:

curl -i -X POST -H "Content-Type: application/json" -d '{"key":"val"}' http://localhost:8080/appname/path

But the following worked:

curl -i -X POST -H "Content-Type: application/json" -d "{\"key\":\"val\"}" http://localhost:8080/appname/path

I am using the below format to test with a web server.

use -F 'json data'

Let's assume this JSON dict format:

{
    'comment': {
        'who':'some_one',
        'desc' : 'get it'
    }
}

Full example

curl -XPOST your_address/api -F comment='{"who":"some_one", "desc":"get it"}'

I just run into the same problem. I could solve it by specifying

-H "Content-Type: application/json; charset=UTF-8"

If you're testing a lot of JSON send/responses against a RESTful interface, you may want to check out the Postman plug-in for Chrome (which allows you to manually define web service tests) and its Node.js-based Newman command-line companion (which allows you to automate tests against "collections" of Postman tests.) Both free and open!


It worked for me using:

curl -H "Accept: application/json" -H "Content-type: application/json" -X POST -d '{"id":100}' http://localhost/api/postJsonReader.do

It was happily mapped to the Spring controller:

@RequestMapping(value = "/postJsonReader", method = RequestMethod.POST)
public @ResponseBody String processPostJsonData(@RequestBody IdOnly idOnly) throws Exception {
        logger.debug("JsonReaderController hit! Reading JSON data!"+idOnly.getId());
        return "JSON Received";
}

IdOnly is a simple POJO with an id property.


This worked well for me, additionally using BASIC authentication:

curl -v --proxy '' --basic -u Administrator:password -X POST -H "Content-Type: application/json"
        --data-binary '{"value":"30","type":"Tip 3","targetModule":"Target 3","configurationGroup":null,"name":"Configuration Deneme 3","description":null,"identity":"Configuration Deneme 3","version":0,"systemId":3,"active":true}'
        http://httpbin.org/post

Of course, you should never use BASIC authentication without SSL and a checked certificate.

I ran into this again today, using Cygwin's cURL 7.49.1 for Windows... And when using --data or --data-binary with a JSON argument, cURL got confused and would interpret the {} in the JSON as a URL template. Adding a -g argument to turn off cURL globbing fixed that.

See also Passing a URL with brackets to curl.


This worked well for me.

curl -X POST --data @json_out.txt http://localhost:8080/

Where,

-X Means the http verb.

--data Means the data you want to send.


Using CURL Windows, try this:

curl -X POST -H "Content-Type:application/json" -d "{\"firstName\": \"blablabla\",\"lastName\": \"dummy\",\"id\": \"123456\"}" http-host/_ah/api/employeeendpoint/v1/employee


You might find resty useful: https://github.com/micha/resty

It's a wrapper round CURL which simplifies command line REST requests. You point it to your API endpoint, and it gives you PUT and POST commands. (Examples adapted from the homepage)

$ resty http://127.0.0.1:8080/data #Sets up resty to point at your endpoing
$ GET /blogs.json                  #Gets http://127.0.0.1:8080/data/blogs.json
                                   #Put JSON
$ PUT /blogs/2.json '{"id" : 2, "title" : "updated post", "body" : "This is the new."}'
                                   # POST JSON from a file
$ POST /blogs/5.json < /tmp/blog.json

Also, it's often still necessary to add the Content Type headers. You can do this once, though, to set a default, of add config files per-method per-site: Setting default RESTY options


You need to set your content-type to application/json. But -d sends the Content-Type application/x-www-form-urlencoded, which is not accepted on Spring's side.

Looking at the curl man page, I think you can use -H:

-H "Content-Type: application/json"

Full example:

curl --header "Content-Type: application/json" \
  --request POST \
  --data '{"username":"xyz","password":"xyz"}' \
  http://localhost:3000/api/login

(-H is short for --header, -d for --data)

Note that -request POST is optional if you use -d, as the -d flag implies a POST request.


On Windows, things are slightly different. See the comment thread.





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