Consuming APIs: reporting from the trenches (PHP-WVL Meetup)

Integrating multiple API endpoints into a single application can be challenging. In this talk I will go over a lot of problems and how the can be solved. Going from easy authentication to locally caching calls via middlewares and using webhooks (or callbacks) for notification, this talk covers it all (or at least tries to).

Transcript

1. CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS REPORTING FROM THE TRENCHES Jachim Coudenys Jachim Coudenys Jachim Coudenys Jachim Coudenys Jachim Coudenys Jachim Coudenys Jachim Coudenys Jachim Coudenys jachim.coudenys@combell.group jachim.coudenys@combell.group jachim.coudenys@combell.group jachim.coudenys@combell.group jachim.coudenys@combell.group jachim.coudenys@combell.group jachim.coudenys@combell.group jachim.coudenys@combell.group @coudenysj @coudenysj @coudenysj @coudenysj @coudenysj @coudenysj @coudenysj @coudenysj
2. Jachim Coudenys
5. CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS CONSUMING APIS REPORTING FROM THE TRENCHES
6. file_get_contents()
7. php 01/*.php
8. guzzlehttp/guzzle
9. php 02/*.php php 03/*.php
10. MOAR LOGIC
11. php 04/*.php php 05/*.php
12. MIDDLEWARE
13. HTTP message interfaces PSR-7
15. SERVER use Tari\ServerMiddlewareInterface; use Tari\ServerFrameInterface; use Psr\Http\Message\ServerRequestInterface; use Psr\Http\Message\ResponseInterface; class Foo implements ServerMiddlewareInterface { public function handle( ServerRequestInterface $request, ServerFrameInterface $frame ): ResponseInterface { if ($this->isBadRequest($request)) { return $frame->factory() ->createResponse("Bad Request", 400); } return $frame->next($request); }
16. CLIENT public static function mapRequest(callable $fn) { return function (callable $handler) use ($fn) { return function ($request, array $options) use ($handler, $fn) { return $handler($fn($request), $options); }; }; }
17. STACKPHP
18. HTTP Server Request Handlers PSR-15
19. GUZZLE HANDLERS AND MIDDLEWARE
20. php 06/*.php
21. GuzzleHttp\Middleware
22. https://www.google.be/search? q=guzzle%20middleware
23. LOCAL CACHING LAYER and ModerateCacheStrategy rfc7234 Cache Docs kevinrob/guzzle-cache-middleware PrivateCacheStrategy PublicCacheStrategy GreedyCacheStrategy
24. \GuzzleHttp\Middleware ::mapResponse Add mapRespons middleware (so caching works as expected) 200 -> 404 403 500 -> 404 etc...
25. Automatically retries HTTP requests when a server responds with a 429 or 503 status Sets a retry delay based on the Retry-After HTTP header, if it is sent, or automatically backs off exponentially if no Retry-After header is sent (also configurable) Optionally retries requests that time out (based on the connect_timeout or timeout options) Set an optional callback when a retry occurs (useful for logging/reporting) Specify a maximum number of retry attempts before giving up (default: 10) caseyamcl/ guzzle_retry_middleware
26. \GuzzleHttp\Middleware ::mapResponse Add mapRespons middleware (so retry works as expected) 500 -> 429 500 -> 503 etc...
27. WEBHOOKS / CALLBACKS Don't poll Register callback url (https://app.local/callback/34dl2F4v) https://swagger.io/docs/specification/callbacks/
28. @coudenysj jachim.coudenys@combell.group THANK YOU https://joind.in/talk/45af2