1 import { of, throwError as observableThrowError } from 'rxjs'
2 import { Injectable } from '@angular/core'
3 import { dateToHuman } from '@app/shared/misc/utils'
4 import { ResultList } from '../../../../../shared'
7 export class RestExtractor {
13 applyToResultListData <T> (result: ResultList<T>, fun: Function, additionalArgs?: any[]): ResultList<T> {
14 const data: T[] = result.data
15 const newData: T[] = []
17 data.forEach(d => newData.push(fun.apply(this, [ d ].concat(additionalArgs))))
25 convertResultListDateToHuman <T> (result: ResultList<T>, fieldsToConvert: string[] = [ 'createdAt' ]): ResultList<T> {
26 return this.applyToResultListData(result, this.convertDateToHuman, [ fieldsToConvert ])
29 convertDateToHuman (target: object, fieldsToConvert: string[]) {
30 fieldsToConvert.forEach(field => target[field] = dateToHuman(target[field]))
35 handleError (err: any) {
38 if (err.error instanceof Error) {
39 // A client-side or network error occurred. Handle it accordingly.
40 errorMessage = err.error.message
41 console.error('An error occurred:', errorMessage)
42 } else if (typeof err.error === 'string') {
43 errorMessage = err.error
44 } else if (err.status !== undefined) {
45 // A server-side error occurred.
46 if (err.error && err.error.errors) {
47 const errors = err.error.errors
48 const errorsArray: string[] = []
50 Object.keys(errors).forEach(key => {
51 errorsArray.push(errors[key].msg)
54 errorMessage = errorsArray.join('. ')
55 } else if (err.error && err.error.error) {
56 errorMessage = err.error.error
57 } else if (err.status === 413) {
58 errorMessage = 'Request is too large for the server. Please contact you administrator if you want to increase the limit size.'
59 } else if (err.status === 429) {
60 const secondsLeft = err.headers.get('retry-after')
62 const minutesLeft = Math.floor(parseInt(secondsLeft, 10) / 60)
63 errorMessage = 'Too many attempts, please try again after ' + minutesLeft + ' minutes.'
65 errorMessage = 'Too many attempts, please try again later.'
67 } else if (err.status === 500) {
68 errorMessage = 'Server error. Please retry later.'
71 errorMessage = errorMessage ? errorMessage : 'Unknown error.'
72 console.error(`Backend returned code ${err.status}, errorMessage is: ${errorMessage}`)
78 message: errorMessage,
84 errorObj.status = err.status
85 errorObj.body = err.error
88 observableThrowError(errorObj)