Prioritized list of features and issues to take care of relating to the Http library.

Closed

• chore(http): add XMLHttpRequest as type on XHRConnection #2816 chore(http): add XMLHttpRequest as type on XHRConnection
• feat(http): simple, dynamic retrying of failed requests #2810 feat(http): simple, dynamic retrying of failed requests

Implemented

• refactor(Http): remove HttpFactory #2564 refactor(Http): remove HttpFactory
• feat(http): EventEmitter and Dart support #2415 feat(http): EventEmitter and Dart support
• feat(http): add JsonP and JsonPBackend #2818 feat(http): add JsonP and JsonPBackend
• refactor(http): move http into its own module as sibling of angular2 #2680 refactor(http): move http into its own module as sibling of angular2
• fix(http): cannot use JSONP_BINDINGS and HTTP_BINDINGS in same injector #3365 fix(http): cannot use jsonpInjectables and httpInjectables in same injector
• feat(http): implement support for headers and url params objects in http #2417 feat(http): implement support for headers and url params objects in http
• http: should complete after response #2635 http should complete after response
• chore(http): convert RequestMethods to const list #2904 chore(http): convert RequestMethods to const list
• feat(Observable): swap underlying RxJS implementation used by EventEmitter with RxJS-Next #3110 feat(Observable): swap underlying RxJS implementation used by EventEmitter with RxJS-Next (Blocked by RxJS alpha release)
• chore(http): remove unused properties from Request and Response #3339 chore(http): remove unused properties from Request and Response
• fix(http): http class requires @Inject decorator to be injected when using TypeScript #2788 Http class requires @Inject decorator to be injected when using TypeScript
• fix(http): should throw an exception if input to http.request is not string or Request #4245 fix(http): should throw an exception if input to http.request is not string or Request
• feat(http): implement error propagation in XHRBackend #2800 feat(http): implement error propagation in XHRBackend
• Http requests should be lazy / cold Observables #4043 Http requests should be lazy / cold Observables
• feat(http): accept string for method in RequestOptions class and interface #2840 feat(http): accept string for method in RequestOptions class and interface
• feat(http): directly return RxJS Observable from Http methods #2794 @robwormald M38 feat(http): directly return RxJS Observable or Dart Stream from Http
  methods
• Fix async pipe so it works with Http / proper Observables #4588 Fix async pipe so it works with Http / proper Observables
• Http: Fix connection.response type to Observable<Response> #5015 Fix Connection.response typedef to Observable

Blocked

• RFC: Http interceptors and transformers #2684 Needs design RFC: Http interceptors and transformers
• feat(http): helpers/guides for short polling #2822 Needs design feat(http): helpers/guides for short polling
• Security features (No issue yet, needs design)

In Progress/Current Milestone

Ready to Implement

Ordered roughly by a factor of priority & level of effort

• refactor(http): move mock_backend to test_lib module #2554 refactor(http): move mock_backend to test_lib module
• refactor(http): convert Connection interface to be Observable of Response #4472 refactor(http): convert Connection interface to be Observable of Response
• feat(http): add support for withCredentials #4231 feat(http): add support for withCredentials
• feat(http): support use by AngularJS 1.x applications #2897 feat(http): support use by AngularJS 1.x applications
• chore(http): assert that url is present in RequestOptions when creating a Request #2806 chore(http): assert that url is present in RequestOptions when creating a Request
• perf(http): provide means to optimize response parsing #2609 perf(http): Provide means to optimize response parsing
• feat(http): Support many types of body on Request/Response and all ConnectionBackend implementations #2803 feat(http): Support many types of body on Request/Response and all ConnectionBackend implementations
• feat(http): automatically set request Content-Type header based on body type #2903 feat(http): automatically set request Content-Type header based on body type
• feat(http): add timeout support to Request #2812 feat(http): add timeout support to Request
• feat(http): implement streaming upload/download #2795 feat(http): implement streaming upload/download
• refactor(http): only use readyState in mock connection #2799 refactor(http): only use readyState in mock connection
• refactor(http): rename URLSearchParams to something else #3513 refactor(http): rename URLSearchParams to something else