angular2-in-memory-web-api
v0.0.21
Published
An in-memory web api for Angular 2 demos and tests
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Angular 2 in-memory-web-api
UPDATE NOTICE
This is the last of the npm packages under the name
angular2-in-memory-web-api
. The new package name is (or soon will be)angular-in-memory-web-api
. All versions after 0.0.21 are (or soon will be) shipped under this new name. Be sure to update yourpackage.json
and import statements accordingly.
An in-memory web api for Angular demos and tests.
It will intercept HTTP requests that would otherwise go to the remote server
via the Angular XHRBackend
service
This in-memory web api service processes an HTTP request and
returns an Observable
of HTTP Response
object
in the manner of a RESTy web api.
It natively handles URI patterns in the form :base/:collectionName/:id?
Examples:
// for store with a 'heroes' collection
GET api/heroes // all heroes
GET api/heroes/42 // the character with id=42
GET api/heroes?name=^j // 'j' is a regex; returns heroes whose name contains 'j' or 'J'
GET api/heroes.json/42 // ignores the ".json"
Also accepts "commands":
POST "resetDb",
GET/POST "config"" - get or (re)set the config
Basic usage
Create an InMemoryDataService
class that implements InMemoryDataService
.
At minimum it must implement createDb
which
creates a "database" hash whose keys are collection names
and whose values are arrays of collection objects to return or update.
For example:
import { InMemoryDbService } from 'angular-in-memory-web-api';
export class InMemHeroService implements InMemoryDbService {
createDb() {
let heroes = [
{ id: '1', name: 'Windstorm' },
{ id: '2', name: 'Bombasto' },
{ id: '3', name: 'Magneta' },
{ id: '4', name: 'Tornado' }
];
return {heroes};
}
}
Register this module and your service implementation in AppModule.imports
calling the forRoot
static method with this service class and optional configuration object:
// other imports
import { HttpModule } from '@angular/http';
import { InMemoryWebApiModule } from 'angular-in-memory-web-api';
import { InMemHeroService } from '../app/hero-data';
@NgModule({
imports: [
HttpModule,
InMemoryWebApiModule.forRoot(InMemHeroService),
...
],
...
})
export class AppModule { ... }
See examples in the Angular.io such as the Server Communication and Tour of Heroes chapters.
Bonus Features
Some features are not readily apparent in the basic usage example.
The InMemoryBackendConfigArgs
defines a set of options. Add them as the second forRoot
argument:
InMemoryWebApiModule.forRoot(InMemHeroService, { delay: 500 }),
Simple query strings
Pass custom filters as a regex pattern via query string. The query string defines which property and value to match.
Format: /app/heroes/?propertyName=regexPattern
The following example matches all names containing the letter 'j' in the heroes collection.
/app/heroes/?name=j+
To Do
- add tests (shameful omission!)
Build Instructions
Mostly gulp driven.
The following describes steps for updating from one Angular version to the next
This is essential even when there are no changes of real consequence. Neglecting to synchronize Angular 2 versions triggers typescript definition duplication error messages when compiling your application project.
gulp bump
- up the package version numberupdate
CHANGELOG.MD
to record the changeupdate the dependent version(s) in
package.json
npm install
the new package(s) (make sure they really do install!)npm list --depth=0
consider updating typings, install individually/several:
npm run typings -- install packagename --ambient --save
NB: Do not add to
npm postinstall
as that screws up consumers!npm run typings install
npm run tsc
to confirm the project compiles w/o error (sanity check)
-- NO TESTS YET ... BAD --
gulp build
commit and push
npm publish
Fix and validate angular.io docs samples
Add two tags to the release commit with for unpkg
- the version number
- 'latest'