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Define plumber1/8/2023 ![]() Plumbers aren’t created equal, an experienced commercial plumber will have the right knowledge and experience for plumbing jobs in commercial buildings. Limited or no regular plumbing maintenance required Variety of mandatory maintenance/inspections for plumbing systems in commercial buildings More preventative maintenance to stop problems from occurring in the first place and avoid business interruptionįrequently reactive, after failures like blocked toilets, burst pipes or broken taps occur Jobs are often smaller due to lower complexity plumbing systems in single dwelling homes Jobs are often larger due to the complexity of plumbing systems involved Larger buildings with more occupants: schools, office blocks, strata buildings, shopping centres You can add hooks using the pr_hook method, or you can add multiple hooks at once using the pr_hooks method which takes a name list in which the names are the names of the hooks, and the values are the handlers themselves.Commercial plumbing vs residential plumbing Commercial Plumbing But in either case, if your hook accepts a parameter named value, whatever your hook returns will be used as the new value for the response. This could be an unmodified version of the value that was passed in, or it could be a mutated value. ![]() The convention for such hooks is: any function that accepts a parameter named value is expected to return the new value. One feature when defining hooks in Plumber routers is the ability to modify the returned value. Hooks can store temporary data in these hooks that can be reused by other hooks processing this same request. In all of the above you have access to a disposable environment in the data parameter that is created as a temporary data store for each request. Plumber routers currently support four hooks: Plumber routers support the notion of “hooks” that can be registered to execute some code at a particular point in the lifecycle of a request. You can specify which filters you want in your new router by overriding the filters parameter when creating your new router. These built-in filters are used to do things like process properties of the incoming request like its cookies, POST body, or query string. Alternatively, you can pass a file that contains your annotation-based Plumber API as the first parameter to create a router much like you do with plumb().īe aware that Plumber routers do come with a handful of filters pre-configured. We’ll see momentarily how to add endpoints and filters onto this empty router. You could call pr_run() on the returned object to start the API, but it doesn’t know how to respond to any requests so any incoming traffic would get a 404 response. This will return a blank Plumber router with no endpoints. To instantiate a new Plumber router programmatically, you can call pr(). If you’ve been using annotations to define Plumber APIs, then you’ve already worked with Plumber routers as that’s what the plumb() command produces. Plumber routers are responsible for coordinating incoming requests from httpuv, dispatching the requests to the appropriate filters/endpoints, serializing the response, and handling errors that might pop up along the way. The centerpiece of Plumber is the router.
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