API for newbs

1. API for newbs
Ivanka Kurpil

2. Client – Server interaction

4. request - HTTP

5. request - HTTP
Request
GET/ https://weather.co/api/?search=Lviv
Headers
User-Agent: Fiddler
Host: weather.co
Body

6. Methods
GET to retrieve a resource
PUT to change the state of or update a resource
POST to create that resource
DELETE to remove it.

7. Methods
GET to retrieve a resource
PUT to change the state of or update a resource
POST to create that resource
DELETE to remove it.

8. Methods
GET to retrieve a resource
PUT to change the state of or update a resource
POST to create that resource
DELETE to remove it.

9. Methods
GET to retrieve a resource
PUT to change the state of or update a resource
POST to create that resource
DELETE to remove it

10. request - HTTP
Request
GET/ https://weather.co/api/?search=Lviv
Headers
User-Agent: Fiddler
Host: weather.co
Body

11. request - HTTPPOST
GET

12. request - HTTP
response - HTTP
POST
GET
STATUS
DATA

13. API
Application Programming Interface
is a set of procedures and functions
that allow interaction between two components of a software application.

18. API SOAP
Simple Object Access Protocol
XML-based standard communication protocol

19. API REST
REpresentational State Transfer
an architectural style and approach
uses HTTP requests to GET, PUT, POST and DELETE data.

20. API REST
REpresentational State Transfer
● Client - server
● Stateless
● Uses HTTP
● Operation with resources
● JSON data type

21. Example:
GET
NewYork times API
https://developer.nytimes.com/
StarWars API
https://swapi.co/

22. Example:
POST
Ryanair API + dev tools
DemoQA

23. ● What endpoints are available?
● What HTTP verbs can I use with those endpoints?
● Are any of the verbs limited by authorization?
● Which fields are required in the requests?
● What are the validation limits on the fields?
● What response codes should I expect for a successful request?
● What response codes should I expect for an unsuccessful
request?
● What sort of error messages will be returned in the body of an
unsuccessful request?

24. ● Sending a request with the wrong HTTP verb
● Sending a request with the wrong endpoint
● Sending a request with the wrong headers
● Sending a request with missing headers
● Sending a request without the proper authorization
● Requesting data for a record that does not exist
● Sending a request with a body that has missing required fields
● Sending a request with a body that has invalid field values

25. API testing Pros
● Localization
● Time saving
● Large volume data
● Wider negative testing opportunity
● Reliability
● Testing Intelligence

26. API testing
● Functional
● Load
● Performance
● Security

27. Do you really need
it to learn?

28. The GUI
IS NO LONGER KING
IN TESTING

29. Agile practices

30. Agile practices
SHORT iterations
FAST feedback

31. ● Artificial Intelligence
● Machine Learning
● Internet of Things
Tech Tops

32. ● Artificial Intelligence
● Machine Learning
● Internet of Things
Tech Tops

33. ● Artificial Intelligence
● Machine Learning
● Internet of Things!
Tech Tops

34. Tools
● Fiddler
● Postman
● SOAPUI
Resources to practice GET
● https://swapi.co/
● https://developer.nytimes.com/
● http://webservicex.com/api
● http://httpbin.org

35. Resources to practice POST
Example:
POST
http://restapi.demoqa.com/customer/register
Body
{
"FirstName": "Dudu",
"LastName": "Dodi",
"UserName": "Domo",
"Password": "qwerty",
"Email": "domo@gmail.com"
}

37. dig deeper