apidays LIVE London 2021 - Learning the Language of HTTP for a Better Data Experience by Chris Woodruff, Rocket Homes
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apidays LIVE London 2021 - Reaching Maximum Potential in Banking & Insurance with API Mindset October 27 & 28, 2021 API Lifecycle Management Learning the Language of HTTP for a Better Data Experience Chris Woodruff, Team Leader - Engineering at Rocket Homes
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apidays LIVE London 2021 - Learning the Language of HTTP for a Better Data Experience by Chris Woodruff, Rocket Homes
- 1. Learning the Language of http:// Chris Woodruff Team Leader, Engineering Rocket Homes
- 2. Chris Woodruff Team Leader, Engineering at Rocket Homes
- 5. New York JULY Australia SEPTEMBER Singapore APRIL Helsinki & North MARCH Paris DECEMBER London OCTOBER Jakarta FEBRUARY Hong Kong AUGUST JUNE India MAY Check out our API Conferences here 50+ events since 2012, 14 countries, 2,000+ speakers, 50,000+ attendees, 300k+ online community Want to talk at one of our conferences? Apply to speak here
- 9. What you Need to Know Response Body Response Codes
- 10. What you Need to Know Client role Server role Initiates interaction Responds to interaction
- 11. HTTP Method or Verbs GET POST PUT DELETE HEAD Queries the representation of a resource Changes the state of the resource Produces new or replaces content of existing resource Deletes resource Same as GET but without the response body
- 12. HTTP Method or Verbs PATCH TRACE OPTIONS CONNECT Applies partial modifications to a resource Preforms a message loop-back test to the target resource Determine options and/or requirements associated with resource Establishes a tunnel to server identified by target resource (SSL)
- 13. HEADER BODY Includes HTTP Verb and Metadata Includes data you want to transfer (i.e., text, pictures, HTML, json, etc.) HTTP Request
- 14. HEADER HTTP Request Header From: cwoodruff@live.com User-Agent: HTTPTool/1.0 Accept: text/html Accept-Encoding: gzip, deflate Content-Length: 348 Content-Type: application/json
- 15. GET HTTP Request Examples GET /path/index.html HTTP/1.1 Host: www.chriswoodruff.com From: cwoodruff@live.com User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36 Accept: text/html
- 16. POST HTTP Request Examples POST /api/thebeatles/images HTTP/1.1 From: cwoodruff@live.com User-Agent: HTTPTool/1.0 Content-Type: image/jpeg Content-Length: 3200
- 17. HTTP Response Codes 1XX 2XX 3XX 4XX 5XX Information responses Successful responses Redirection responses Client error responses Server error responses
- 18. Common Response Codes 200 201 202 204
- 19. Common Response Codes 200 301 201 202 204 304 307 308
- 20. Common Response Codes 200 301 201 202 204 304 307 400 401 403 404 405 406 409 308
- 21. Common Response Codes 200 301 201 202 204 304 307 … 412 415 422 429 308
- 22. Common Response Codes 400 401 403 404 405 406 409 200 304 201 202 204 304 304 500 501 503 504 308
- 23. HEADER BODY Includes HTTP Response Code and Metadata Includes data the API want to transfer back (i.e., text, pictures, HTML, json, etc.) HTTP Response
- 24. HEADER HTTP Response Header HTTP/1.1 200 OK Date: Tue, 9 Sep 2021 08:12:31 GMT Content-Encoding: gzip Content-Length: 348 Cache-Control: max-age=3600 Server: Apache/2.4.1 (Unix) Allow: GET, HEAD
- 25. 200 HTTP Response Examples HTTP/1.1 200 OK Date: Fri, 3 Aug 2021 23:59:59 GMT Server: Apache/2.2.14 (Win32) Last-Modified: Wed, 22 Jul 2020 19:15:56 GMT Content-Length: 88 Content-Type: text/html Connection: Closed Cache-Control: max-age=604800
- 26. 404 HTTP Response Examples HTTP/1.1 404 Not Found Date: Mon, 3 Aug 2021 23:59:59 GMT Server: Apache/2.2.14 (Win32) Content-Length: 230 Connection: Closed Content-Type: text/html; charset=iso- 8859-1
- 29. What is REST? Resource URL Verb
- 30. Representation State Transfer? Client Server Revolver.HTML • The Client references a resource using a URL • A representation of the resource is returned • When the Client selects a hyperlink in the resource it accesses another resource • The new representation places the Client in a different state • Thus, the Client transfers state with each resource representation. http://musicstore.com/artists/thebeatles/revolver
- 31. Workflow for an HTTP Request HTTP Request Method HTTP Path Parameters Correct method? Path correct? Parameters valid? GET | POST | … /api/albums/create ?Date=27 Aug2021sername=… Method allowed? 400 Authorized? 404 200 400 405 403
- 32. /Products RESOURCE EXPECTED OUTCOME VERB RESPONSE CODE /Products?Color=green /Products /Products/81 /Products/881 /Products/81 /Products/81 GET GET POST GET GET PUT DELETE A list of all products in the system A list of all products in the system where the color is green Creation of a new product Product with an ID of 81 No product with ID 881 Update of the product with ID of 81 Deletion of the product with ID of 81 200 OK 200 OK 201 Created 200 OK 404 Not Found 204 No Content 204 No Content /Products/81 PUT Update of the product with ID of 81 304 Not Modified Quiz!!
- 33. Understand HTTP Learn how to use HTTP verbs Learn how to use response codes Understand REST Learn how to test RESTful APIs What to remember to build better APIs
- 36. New York JULY Australia SEPTEMBER Singapore APRIL Helsinki & North MARCH Paris DECEMBER London OCTOBER Jakarta FEBRUARY Hong Kong AUGUST JUNE India MAY Check out our API Conferences here 50+ events since 2012, 14 countries, 2,000+ speakers, 50,000+ attendees, 300k+ online community Want to talk at one of our conferences? Apply to speak here