Angular 2 get error code

map( res = > { / / If request fails, throw an Error that will be caught if( res. status < 200 | | res. status > = 300) { throw new. be necessary because all status codes below 200 and above 299 will throw an error automatically, so you won' t have to check them by yourself. 1 I was not able to catch the exception using the ( data), ( error) pattern, so I implemented it using. As stated in the relevant RxJS documentation, the. subscribe( ) method can take a third argument that is called on completion if there are no errors. For reference: [ onNext] ( Function ) : Function to invoke for each element in te that in the next release this won' t be necessary because all status codes below 200 and above 299 will throw an error automatically, so you won' t have to check them by yourself. Check this commit for more sponseStatus: number; / / This method must return the status of the http response confirmEmail( mailToken) : Observable< String> { / / Edited for working with HttpClient on Angular > = 4. According to the angular style guide. The details of data management, such as headers, HTTP methods, caching, error handling, and retry logic, are irrelevant to components and other data consumers.

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  • Video:Error angular code

    Error angular code

    Your e this code here: ( It is from io/ docs/ ts/ latest/ guide/ server- communication. But when the subscribed method throws an error you won ' t get your response, you will only get the error ( which is the second. err) needs to be outside the customer fat arrow: this. subscribe( ( customer) = > { console. log( customer) ; this. customer = customer, }, ( err ) = > { console. To get the error msg back, add a catch. The returned error corresponds to the response itself, so you can use its status attribute to get the status code: loadSize( ) { this. campaignsService. getTotalNumberCampaigns( ). subscribe( value = > { / / async call this. Yes you can handle with the catch operator like this and show alert as you want but firstly you have to import Rxjs for the same like this way import { Observable} from ' rxjs/ Rx' ; return this. The error is contained in the body of the response even in this case.

    See the error event handler onError function: com/ angular/ angular/ blob/ master/ ts# L96.