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import { Injectable } from '@angular/core';
import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Observable } from 'rxjs';
import { switchMap, concatMap, map, toArray } from 'rxjs/operators';
interface WiqlWorkItemResult {
id: number;
url: string;
}
interface WiqlResult {
workItems: WiqlWorkItemResult[];
}
interface WorkItemResult {
id: number;
fields: { [name: string]: any };
}
export interface WorkItem {
id: number;
title: string;
}
@Injectable({
providedIn: 'root'
})
export class TodoListService {
private username = 'crupest';
private organization = 'crupest-web';
private project = 'Timeline';
private fieldId = 'System.Title';
constructor(private client: HttpClient) { }
private getAzureDevOpsPat(): Observable<string> {
return this.client.get('/api/TodoList/AzureDevOpsPat', {
headers: {
'Accept': 'text/plain'
},
responseType: 'text'
});
}
getWorkItemList(): Observable<WorkItem[]> {
return this.getAzureDevOpsPat().pipe(
switchMap(
pat => {
const headers = new HttpHeaders({
'Accept': 'application/json',
'Authorization': `Basic ${btoa(this.username + ':' + pat)}`
});
return this.client.post<WiqlResult>(
`https://dev.azure.com/${this.organization}/${this.project}/_apis/wit/wiql?api-version=5.0`, {
query: 'SELECT [System.Id] FROM workitems WHERE [System.TeamProject] = @project'
}, { headers: headers }).pipe(
switchMap(result => result.workItems),
concatMap(result => this.client.get<WorkItemResult>(result.url, { headers: headers })),
map(result => <WorkItem>{ id: result.id, title: result.fields[this.fieldId] }),
toArray()
);
}
)
);
}
}
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