HTTP Clients

HTTP Requests

• Initial Line
• method (GET, POST, Delete..)
• path
• Headers
• Language
• client version
• type(response type)
• Body
• input fields, user/pwd details

HTTP Response

• Initial/status Line
• Status code
• message
• version
• Headers
• type
• length
• Language
• Body(optional)
• formatted/plain response

Browsers support ONLY GET & POST requests.

GET

• Doesn't have BODY
• Pass parameters directly in URL(Query String)

POST

• To Create

Put and Patch

• To update existing resource
• PUT to update whole resource
• Patch to update some of the attribute of a resource
• Doesn't receive/support form data. They receive/support only form-urlencoded.

Delete

• form-urlencoded method for body

HTTP Status/Response

• 404 - resource doesn't exist
• https://en.wikipedia.org/wiki/List_of_HTTP_status_codes
• 
  

Oauth

• grant_type: client_credentials //In body
• client_id
• client_secret
• grant_type:password
• Client credentials
• User credentials

Ways to send access token to the actual request

• Body of the request
• access_token:<value of the token>
• Header of the request
• Authorizatoin:Bearer <value of the token>
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