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Refactor number extraction from string (#41)

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Thomas 2021-04-25 12:11:52 +02:00 committed by GitHub
parent 954224401d
commit 125956eb3e
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1 changed files with 16 additions and 6 deletions
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22
apps/api/src/services/data-provider/ghostfolio-scraper-api/ghostfolio-scraper-api.service.ts
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@ -15,6 +15,8 @@ import { PrismaService } from '../../prisma.service';
@Injectable()
export class GhostfolioScraperApiService implements DataProviderInterface {
private static NUMERIC_REGEXP = /[-]{0,1}[\d]*[.,]{0,1}[\d]+/g;
public constructor(private prisma: PrismaService) {}
public async get(
@ -75,12 +77,9 @@ export class GhostfolioScraperApiService implements DataProviderInterface {
const html = await get();
const $ = cheerio.load(html);
const string = $(scraperConfig?.selector)
.text()
.replace('CHF', '')
.trim();
const value = parseFloat(string);
const value = this.extractNumberFromString(
$(scraperConfig?.selector).text()
);
return {
[symbol]: {
@ -96,6 +95,17 @@ export class GhostfolioScraperApiService implements DataProviderInterface {
return {};
}
private extractNumberFromString(aString: string): number {
try {
const [numberString] = aString.match(
GhostfolioScraperApiService.NUMERIC_REGEXP
);
return parseFloat(numberString.trim());
} catch {
return undefined;
}
}
private async getScraperConfig(aSymbol: string) {
try {
const {