API for Beginners
39 likes20,310 views
This document introduces APIs and how they are used by developers. It explains that APIs allow programs to interact with other applications and services to access useful data and functionality. Developers can use APIs by making HTTP requests to consume data and build their own applications. The document provides examples of popular APIs like Google Maps, Twilio, and Meetup that developers integrate into their applications. It also discusses the differences between making API calls and using webhooks to receive automatic notifications from a service.
API for Beginners
- 3. an used by with an Interface Programs to interact Application
- 4. Application
- 6. Program
- 7. No (direct) human usage of APIs
- 8. Developers
- 10. API
- 12. API Consumption
- 13. Web APIs
- 15. Google Maps JS API
- 16. AirBnB
- 17. Twilio API
- 18. UBER
- 19. As a developer,
- 20. I need GPS coordinates of venues to show next gigs in town on a map
- 21. Timeout content manager don’t know GPS coordinates of venues
- 22. Timeout content manager won’t manually enter GPS coordinates of venues
- 23. Timeout content manager will enter venue addresses
- 24. There’s an API for that
- 26. 10 Downing St, London
- 27. 10 Downing St, London { "location" : { "lat" : 51.5034066, "lng" : -0.1275923 } } This is called JSON
- 28. How does it work?
- 29. API call is an HTTP request
- 31. When do we call the API?
- 35. Timeout Server did the API call not you, neither your browser
- 36. Timeout Server did the API call not you, neither your browser
- 37. APIs are consumed by programs (not humans)
- 38. Are we done?
- 41. Developer should now integrate the Google Maps JS API JS stands for JavaScript here
- 42. Let’s look at some code
- 43. I want the app to send text messages if a gig is cancelled
- 44. Step 1 - Sign up to Twilio
- 45. Step 2 - Fetch credentials
- 46. Step 3 - Write some ruby require 'twilio-ruby' account_sid = 'AC__________' auth_token = '_____________' client = Twilio::REST::Client.new(account_sid, auth_token) client.messages.create( from: '+336123456789', to: '+3370000000000', body: 'Hi buddy, you should attend Le Wagon!' )
- 47. Step 4 - Run code
- 48. Your program sent a text!
- 51. Every 10 seconds, call the API to fetch list of Meetup attendees
- 52. Don’t call us, we’ll call you Hollywood Principle
- 53. Meetup, please call my server as soon as a new member has RSVP’d Webhook
- 55. Webhook vs API call Meetup My app WEBHOOK API Call
- 56. META
- 57. Let’s take an example,
- 58. Wufoo form to capture leads Trello for my sales team Lead Management
- 59. WEBHOOK Service A pushes data as soon as available API Service B exposes methods to read, create or update data
- 60. WEBHOOK Wufoo pushes form entries as soon as captured API Trello exposes methods to create new cards
- 63. Zapier
- 64. Demo
- 65. When you’ll hit Zapier's limit, come learn to code at Le Wagon!
- 66. Thank you!
- 68. Photo Credits • http://pixabay.com/en/phone-dial-old-arrangement-499991/ • https://www.flickr.com/photos/knowledge-test/10359484896/ • http://www.gentside.com/wall-e/wallpaper/page_4.html • https://www.flickr.com/photos/cgc76/13637753574 • https://www.flickr.com/photos/nori_n/271373399 • https://www.flickr.com/photos/jnyemb/5225841771 • https://www.flickr.com/photos/booleansplit/5527628335 • https://www.flickr.com/photos/lizhaslam/13257286833 • https://www.flickr.com/photos/armandfrasco/8741186 • https://www.flickr.com/photos/photobunny_earl/2239452148 • https://www.flickr.com/photos/89228431@N06/11221050956