问题
InMemoryWebApiModule is working with downloaded source code where
"angular-in-memory-web-api": "~0.5.0" But not with"angular-in-memory-web-api": "^0.6.0"
I have followed the tutorial,to install angular-in-memory-web-api :
npm install angular-in-memory-web-api --save
And it installed "angular-in-memory-web-api": "^0.6.0"
Error Message:
webpack-internal:///./src/app/hero.service.ts:87
Object
body:
error: "Object(...) is not a function"
__proto__: Object
headers: HttpHeaders
lazyInit: ƒ ()
lazyUpdate: null
normalizedNames: Map(0) {}
__proto__: Object
status: 500statusText: "Internal Server Error"
url: "api/heroes"
__proto__: Object
(anonymous) @ webpack-internal:///./src/app/hero.service.ts:87
回答1:
Looks like the 0.6.0 release of angular-in-memory-web-api has some breaking changes, which are likely out of sync with the versions of angular and rxjs that the tutorial has had you install.
Simplest fix is just to install the 0.5.4 version of angular-in-memory-web-api:
npm install angular-in-memory-web-api@0.5.4 --save
回答2:
It was indeed an issue with the version of angular-in-memory-web-api.
I force installed v0.5.4 as zyzof suggested and it fixed it immediately! Thanks
npm install angular-in-memory-web-api@0.5.4 --save
回答3:
I was having the same issue and resolved it by uninstalling and installing again. I originally thought it was an authentication issue as I had used firebase to login anonymously with Angular but the tutorials I have used with the in memory-web-api previously were unauthenticated applications.
来源：https://stackoverflow.com/questions/49458598/angular-tutorial-inmemorywebapimodule-throwing-500-internal-server-error-with-a