use curl code example

Example 1: curl get example

curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource

Example 2: curl example

curl --request POST \
  --url https://api.sendgrid.com/v3/mail/send \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{"personalizations": [{"to": [{"email": "[email protected]"}]}],"from": {"email": "[email protected]"},"subject": "Hello, World!","content": [{"type": "text/plain", "value": "Heya!"}]}'

Example 3: curl command

#usage:
curl <url>
#it returns the raw text of the page (or anything else) at <url> in the internet
#to stdout
#examples:
#put the output into <file>
curl <url> > <file>
#to search for <pattern>
curl <url> | grep /<pattern>/
#to uncompress the output
curl <url> | gunzip

#you get the hang of it.

#helpful if you are testing a server :)
#be sure to be on bash or powershell!

Example 4: curl command

curl --header "Authorization: key=AAAAbh_xxx-nI:APBAwd91bGn1OssamQlG4R1v84yXOv-6oynz1i4eNltzQLd5ojIiFSHvnCFHJyA33QcRfeAMa5As2mjfEjkRA_XA-YM8gsqEQssm3Ykrn8FSBEwwwkot5KPWY0zMefYB1RZj1ZlZfsWy" --header "Content-Type: application/json" -d '{"to": "f8UQCp0VHqCrBR0Yeiwx0:APA91bHuqLN7Wp40U2Wt8LS3VcRipttiViYF4TXHKP1Rusdov542XEgUYaVk9GIAEM3Q2kHcME5D85BsyWg7vk3H3oLhKJdNQLSNyoxzfnhGAvuQo4BiTZ43sIdVGQ7t86WQDn6s9HBj", "data": {"status": "New information!!!"}}' https://fcm.googleapis.com/fcm/send

Example 5: curl command

curl is a command line client to send request and
get respond from command line, so it's basically 
it's just way to send a request and response. Where you
send it we call it client. But with postman we can do more
than just sending request end respond.
This tool is preferred for automation, 
since it is designed to work without user interaction.
curl can transfer multiple file at once.
Also A lot of API documentation provide curl
command for example when we run the request and
Postman can easily import curl command without you
manually typing the whole part of the request.