Curl - Get status code and response body

curl-get-status-code-and-response-body.sh

URL="http://stackoverflow.com/"

# store the whole response with the status at the and
HTTP_RESPONSE=$(curl --silent --write-out "HTTPSTATUS:%{http_code}" -X POST $URL)

# extract the body
HTTP_BODY=$(echo $HTTP_RESPONSE | sed -e 's/HTTPSTATUS\:.*//g')

# extract the status
HTTP_STATUS=$(echo $HTTP_RESPONSE | tr -d '\n' | sed -e 's/.*HTTPSTATUS://')

# print the body
echo "$HTTP_BODY"

# example using the status
if [ ! $HTTP_STATUS -eq 200  ]; then
  echo "Error [HTTP status: $HTTP_STATUS]"
  exit 1
fi

one should use quotes in the echo in order to avoid loose of linebreaks

HTTP_BODY=$(echo` "$HTTP_RESPONSE" | sed -e 's/HTTPSTATUS:.*//g')

The snippet above is pretty nice. However, it doesn't take any occurences of HTTPSTATUS in the response body into account.

The following has a more strict regex to extract the body and status code which will work even with HTTPSTATUS in the response body:

HTTP_BODY=$(echo $HTTP_RESPONSE | sed -E 's/HTTPSTATUS\:[0-9]{3}$//')
HTTP_STATUS=$(echo $HTTP_RESPONSE | tr -d '\n' | sed -E 's/.*HTTPSTATUS:([0-9]{3})$/\1/')

I couldn't get the \d meta sequence to work in the few seconds I put effort in it, so it's just [0-9] instead of \d for now

Hi, here we have been able to get the "HTTP status code" and the "response body". Is it also possible to get the "HTTP Header values" using $HTTP_RESPONSE?

one should use quotes in the echo in order to avoid loose of linebreaks

HTTP_BODY=$(echo` "$HTTP_RESPONSE" | sed -e 's/HTTPSTATUS:.*//g')

There is a syntax error in this. unmatched ending for the accent `

I've been able to get the http status by doing the following:

URL="http://stackoverflow.com/"
echo STATUS=$(curl -ILSso /dev/null -w '%{response_code}' $URL | head -n 1 | cut -d$' ' -f2)

Here is what I came up with:

    curl -sL -w ' { "statusCode": %{http_code}} ' -X POST "${headers[@]}" "${endpoint}" \
      -d "${body}"  "$curl_opts" | jq -ren '[inputs] | add'

the curl command produces:

{"message":"Change event processed","status":"success"}

I just add another object with the status code

{ "statusCode": 202} 

and have jq smush them together:

jq -ren '[inputs] | add'

So, if you use jq and slurp, you would get:

[
  {
    "message": "Change event processed",
    "status": "success"
  },
  {
    "statusCode": 202
  }
]

Instead, we squeeze them together and get:

jq -n '[inputs] | add'
{
  "message": "Change event processed",
  "status": "success",
  "statusCode": 202
}

we can then save and dump this and then use jq to return status code:

jq -re '.statusCode >= 200 and .statusCode < 300' > /dev/null

Remember: in bash the status code of the last command is the status code of the function