Join Justin Schwartzenberger for an in-depth discussion in this video Using UrlSearchParams, part of Angular 2 Essential Training (2016).
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- [Voiceover] The get call in the media item service…is currently requesting all media items.…Let's refactor that to support URL search query values…and see how Angular HTTP service works with those.…Angular has URLSearchParams class…that helps with packaging up search query data.…In the media-item.service.ts file,…we can add URLSearchParams to the import list…from angular2/http.…The mock back end supports filtering…the media items list by medium,…so let's update the service get method…to take in a parameter named medium.…
Then, in this method, we need to create…a new instance of URLSearchParams,…setting that to a local variable named searchParams.…URLSearchParams has a method called append,…so we can call searchParams.append…and pass it the name as a string of the parameter key…and the medium from the service get parameters as the value.…The http.get method supports…a second argument of request options.…This can be an object.…So let's add a second argument of an object literal.…
The request options support a search property…
- What is Angular?
- Setting up an Angular template
- Creating a component
- Displaying data
- Working with events
- Using two-way data binding
- Creating a subcomponent
- Using the built-in HTTP module
- Using the built-in router module
Skill Level Intermediate
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