I want to run this simple bash script:
curl https://www.googleapis.com/urlshortener/v1/url?key=MyKey -H \\
'Content-Type: application/json' -d '{"longUrl": "$1"}'
but bash does not expand the $1 because of the single quotes after -d. Google returns, expectedly, and error:
{
"error": {
"errors": [
{
"domain": "global",
"reason": "invalid",
"message": "Invalid Value",
"locationType": "parameter",
"location": "resource.longUrl"
}
],
"code": 400,
"message": "Invalid Value"
}
}
How do I expand the $1 inside the single quotes of the json object sent by -d in curl?
This question does seem to be a duplicate, but I cannot figure out the answer from the other ones. I'm providing the script in the hopes it will be useful for someone else as a contribution.
You could just use double quotes, escaping the ones inside the JSON string:
curl https://www.googleapis.com/urlshortener/v1/url?key=MyKey -H \\
'Content-Type: application/json' -d "{\"longUrl\": \"$1\"}"
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