1 import { throwError as observableThrowError } from 'rxjs'
2 import { Injectable } from '@angular/core'
3 import { dateToHuman } from '@app/shared/misc/utils'
4 import { ResultList } from '../../../../../shared'
5 import { Router } from '@angular/router'
6 import { I18n } from '@ngx-translate/i18n-polyfill'
9 export class RestExtractor {
12 private router: Router,
22 applyToResultListData <T> (result: ResultList<T>, fun: Function, additionalArgs?: any[]): ResultList<T> {
23 const data: T[] = result.data
24 const newData: T[] = []
26 data.forEach(d => newData.push(fun.apply(this, [ d ].concat(additionalArgs))))
34 convertResultListDateToHuman <T> (result: ResultList<T>, fieldsToConvert: string[] = [ 'createdAt' ]): ResultList<T> {
35 return this.applyToResultListData(result, this.convertDateToHuman, [ fieldsToConvert ])
38 convertDateToHuman (target: object, fieldsToConvert: string[]) {
39 fieldsToConvert.forEach(field => target[field] = dateToHuman(target[field]))
44 handleError (err: any) {
47 if (err.error instanceof Error) {
48 // A client-side or network error occurred. Handle it accordingly.
49 errorMessage = err.error.message
50 console.error('An error occurred:', errorMessage)
51 } else if (typeof err.error === 'string') {
52 errorMessage = err.error
53 } else if (err.status !== undefined) {
54 // A server-side error occurred.
55 if (err.error && err.error.errors) {
56 const errors = err.error.errors
57 const errorsArray: string[] = []
59 Object.keys(errors).forEach(key => {
60 errorsArray.push(errors[key].msg)
63 errorMessage = errorsArray.join('. ')
64 } else if (err.error && err.error.error) {
65 errorMessage = err.error.error
66 } else if (err.status === 413) {
67 errorMessage = this.i18n(
68 'Request is too large for the server. Please contact you administrator if you want to increase the limit size.'
70 } else if (err.status === 429) {
71 const secondsLeft = err.headers.get('retry-after')
73 const minutesLeft = Math.floor(parseInt(secondsLeft, 10) / 60)
74 errorMessage = this.i18n('Too many attempts, please try again after {{minutesLeft}} minutes.', { minutesLeft })
76 errorMessage = this.i18n('Too many attempts, please try again later.')
78 } else if (err.status === 500) {
79 errorMessage = this.i18n('Server error. Please retry later.')
82 errorMessage = errorMessage ? errorMessage : 'Unknown error.'
83 console.error(`Backend returned code ${err.status}, errorMessage is: ${errorMessage}`)
89 message: errorMessage,
95 errorObj.status = err.status
96 errorObj.body = err.error
99 return observableThrowError(errorObj)
102 redirectTo404IfNotFound (obj: { status: number }, status = [ 404 ]) {
103 if (obj && obj.status && status.indexOf(obj.status) !== -1) {
104 // Do not use redirectService to avoid circular dependencies
105 this.router.navigate([ '/404' ], { skipLocationChange: true })
108 return observableThrowError(obj)