Consuming Restful APIs

This talk equips you with both foundations and best practices for consuming REST APIs.

Transcript

1. Consuming
   REST APIs
   By Mustapha Rufai
   

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3. Learning Outcomes
   What Is An API?
   How Developers Work With APIs?
   Understanding HTTP
   How To Make API Calls
   API Request Tools
   Authentication & Authorization
   Errors
   Case Study: Paga’s Payment APIs
   

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4. HTTP
   1. Language
   2. Protocol of communication
   3. Web
   4. Communication
   

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5. 1. CCTV will capture motion
   2. CCTV will send motion to the server
   3. Server is storing this motion
   4. Phone requests to view this motion
   5. Server will send the motion to the Phone
   6. Phone will alert on a particular CCTV camera
   7. Server will receive this alert
   8. Server sends this alert to the CCTV
   9. CCTV will change indicator ( beeping )
   phone
   api
   server
   api
   cctv
   

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6. Request
   Response
   1. 100 - 199 Information ( the existence of something, does it exist )
   2. 200 - 299 Success
   3. 300 - 399 Redirect
   4. 400 - 499 Client Error
   5. 500 - 599 Server Error
   1. GET
   2. DELETE
   3. POST
   

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7. Authentication
   Authorization
   Who are you?
   What are you allowed to do?
   ● Cashier
   ● Bank Manager
   ● Account Managers
   ● Reconciliation officers
   ● Accountant
   ● Security
   ● Customers
   What can you do?
   

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