使用Shell脚本将JSON文件发布到URL

Question

I am writing a shell script to post a JSON file to a URL.

The header is:

Content-Type: application/json
Accept: application/json
Account-Number: xxxxxxxx
Authorization: Basic eW91cl91c2VyX25hbWU6cGFzc3dvcmQ=

The above JSON string is saved into a .JSON file and my curl command should process it and get the desired response. I use the following command but it does not process successfully:

curl -H "Content-Type: application/json" -X POST -d "data=@$f" https://abcdef.com/test/example/v1/

$f has the JSON file name.

I have the following questions as well:

1. Should my header and the JSON string be in the same JSON file? If the header is present in a differnt file, what should be its extension? and how do I process that using curl command?
2. Is there any specific handling I should do for special characters like {,",: etc?

Answer 1

You're not sending all the headers. I don't believe there's an option to read the desired headers from a file.

Since you're scripting in bash, I'd store all the options in a shell array for readability:

curl_opts=(
    -H "Content-Type: application/json"
    -H "Accept: application/json"
    -H "Account-Number: xxxxxxxx"
    -H "Authorization: Basic eW91cl91c2VyX25hbWU6cGFzc3dvcmQ="
    -X POST 
    --data-binary "@$f"
)
curl "${curl_opts[@]}" https://abcdef.com/test/example/v1/

Answer 2

Assuming you want to post your JSON data exactly as-is (without further processing), you should use --data-binary . If preserving content like newlines is not necessary, you can use -d / --data , but in the form -d @file , like this:

filename=file.json
curl http://httpbin.org/post --data-binary "@$filename" --user "name:password" -H 'Content-Type: application/json' -H 'Accept: application/json' -H 'Account-Number: xxxxxxxx'

of course, after fixing all syntax errors you have in your JSON (like hanging commas, isolated single quotes, etc). Specifying data in form key=val (or key=@file ), like you're trying, will not work (you can use it for form parameters with -F , though); see valid data part syntax in curl .

Note that when using --data-binary , default method is POST (so, no need to specify it with -X ), but you'll have to specify the correct Content-Type .

Also, instead of manually calculating Authorization header for HTTP Basic Auth, just use the -u / --user <user:pass> option.