Bash Curl request not sending complete parameter

Question

I have the following small bash script:

TEST=$(curl -X POST -s -H "Content-type: application/json" -X POST http://$SITE/REST/v1/ -d '
{
    "Authorization":"Bearer '$TOKEN'"
}
' --trace-ascii /dev/stdout)

In this case, $TOKEN=c4cc0c81e279defd4bd261e9e1550e8a1ded5JKg5

However, when I send the request with --trace-ascii enabled, I can see the following in the output:

{. "Authorization":"Bearer "c4cc0c81e279defd4bd261e9 0040: e1550e8a1ded5JKg5"". }

Any reason why this gets split up? How can I prevent this?

Maybe the variable TOKEN is already set to the truncated value? — Alfe
– Alfe, Commented Dec 21, 2017 at 14:01
I am seeing the same issue when I use Bearer c4cc0c81e279defd4bd261e9e1550e8a1ded5JKg5 in plain text. It also gets cut off — SnIpY
– SnIpY, Commented Dec 21, 2017 at 14:14
i think the problem is on the ' '$TOKEN' ' in this way the only word non single quoted is $TOKEN — D'Arcy Nader
– D'Arcy Nader, Commented Dec 21, 2017 at 14:17
Maybe this behaviour is due to shell quoting rules. Try to save your post data into a file and specify it on the command line -d @post.json — marcell
– marcell, Commented Dec 21, 2017 at 15:36
Count your single quotes. Do you actually want single quotes embedded in the data you post? — ghoti
– ghoti, Commented Dec 21, 2017 at 17:12

glenn jackman · Accepted Answer · 2017-12-21 16:51:48Z

1

I would do this, which will help with the quoting:

data=$(printf '{"Authorization":"Bearer %s"}' "$TOKEN")
output=$(curl -s -H "Content-type: application/json" -X POST http://$SITE/REST/v1/ -d "$data" --trace-ascii /dev/stdout)

I suspect you may need to send Authorization as a header not as data. Try this, it's quite readable

curl_opts=(
    --silent
    --header "Content-type: application/json"
    --header "Authorization: Bearer $token"
    --trace-ascii -
)
curl "${curl_opts[@]}" -X POST -d "$other_data" "$url"

Note you should get out of the habit of using ALL_CAPS_VARNAMES: leave those as reserved for the shell.

answered Dec 21, 2017 at 16:51

glenn jackman

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2 Comments

SnIpY Over a year ago

Thank you! How would the data printf part look like if I would need to pass two key-value?

glenn jackman Over a year ago

At a bash prompt, enter help printf

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