curl post data from file

1. How do you post data with curl?
2. How do you pass file content in curl command?
3. How pass JSON data in Curl Post?
4. How do I post a JSON file?
5. Why do we use curl?
6. How do I follow curl redirect?
7. How do I get curl response in JSON format?
8. What is curl option?
9. How do you curl multiple headers?
10. What is curl post request?
11. How do you send a header in curl?
12. How do I get my username and password for curl?

How do you post data with curl?

For sending data with POST and PUT requests, these are common curl options:

1. request type. -X POST. -X PUT.
2. content type header.
3. -H "Content-Type: application/x-www-form-urlencoded"
4. -H "Content-Type: application/json"
5. data. form urlencoded: -d "param1=value1&param2=value2" or -d @data.txt.

How do you pass file content in curl command?

1. If you want to be real fancy you can do: cat file.txt | curl --data "@-" `(< url.txt )` @- tells curl to read from stdin. ...
2. curl will strip all newlines from the file. ...
3. now how would one add login credentials to authorize this request? – ...
4. @anon58192932 - That depends upon the security protocol of the server.

How pass JSON data in Curl Post?

To post JSON data using Curl, you need to set the Content-Type of your request to application/json and pass the JSON data with the -d command line parameter. The JSON content type is set using the -H "Content-Type: application/json" command line parameter. JSON data is passed as a flat string.

How do I post a JSON file?

Use the syntax above ( curl -X POST -H "Content-Type: application/json" -d @FILENAME DESTINATION ) to specify a file instead.

Why do we use curl?

curl is a widely used because of its ability to be flexible and complete complex tasks. For example, you can use curl for things like user authentication, HTTP post, SSL connections, proxy support, FTP uploads, and more! You can also do simple things with curl, such as download web pages and web images.

How do I follow curl redirect?

In curl's tradition of only doing the basics unless you tell it differently, it does not follow HTTP redirects by default. Use the -L, --location to tell it to do that. When following redirects is enabled, curl will follow up to 50 redirects by default.

How do I get curl response in JSON format?

To get JSON with Curl, you need to make a GET request and provide the Accept: application/json request header. The application/json request header is passed to the server with the curl -H command-line option and tells the server that the client is expecting JSON data.

What is curl option?

curl is a tool to transfer data from or to a server, using one of the supported protocols (HTTP, HTTPS, FTP, FTPS, GOPHER, DICT, TELNET, LDAP or FILE). ... curl offers a busload of useful tricks like proxy support, user authentication, ftp upload, HTTP post, SSL (https:) connections, cookies, file transfer resume and more.

How do you curl multiple headers?

To pass multiple headers in a curl request you simply add additional -H or --header to your curl command.

What is curl post request?

curl -X POST [options] [URL] The -X option specifies which HTTP request method will be used when communicating with the remote server. The type of the request body is indicated by its Content-Type header. Generally, a POST request is sent via an HTML form.

How do you send a header in curl?

To add a header to a cURL request, you need to use the -H command-line option and pass the name and value of the HTTP header in enclosed quotation marks. Headers without values ​​must be followed by a semicolon. The number of cURL request headers is not limited. You can add as many cURL headers as you like.

How do I get my username and password for curl?

For example, if a website has protected content curl allows you to pass authentication credentials. To do so use the following syntax: curl --user "USERNAME:PASSWORD" https://www.domain.com . “USERNAME” must be replaced with your actual username in quotes.