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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | 1x 1x 1x 20x 20x 1x 3x 3x 1x 1x 1x 1x 2x 3x 1x 25x 25x 25x 25x 1x 45x 45x 35x 45x 10x 10x 45x 1x 1x 12x 12x 1x 1x 1x 1x 11x 12x 1x 33x 33x 9x 9x 24x 33x 24x 33x 1x 33x 33x 1x | import { Request } from "express";
import { RequestParamError } from "@/Error";
export class RequestDataParser {
private req: Request;
constructor(req: Request) {
this.req = req;
}
getHeaderAsString(key: string): string {
const value = this.req.get(key);
if (!value) {
throw new RequestParamError(
`${key} is required header but was not found`
);
}
return value;
}
getPathParamAsString(key: string): string {
const value = this.req.params[key];
if (!value) {
throw new RequestParamError(
`${key} is required path param but was not found`
);
}
return value;
}
getQueryParamAsStringOrUndefined(key: string): string | undefined {
const value = this.req.query[key];
if (typeof value === "string") {
return value;
} else {
return undefined;
}
}
getQueryParamAsStringWithDefault(key: string, def: string): string {
return this.getQueryParamAsStringOrUndefined(key) || def;
}
getQueryParamAsString(key: string): string {
const value = this.getQueryParamAsStringOrUndefined(key);
if (!value) {
throw new RequestParamError(
`${key} is required query param but was not found`
);
}
return value;
}
getQueryParamAsNumberOrUndefined(key: string): number | undefined {
const value = this.getQueryParamAsStringOrUndefined(key);
if (value === undefined) {
return undefined;
}
const numberValue = Number(value);
if (isNaN(numberValue)) {
throw new RequestParamError(`${key} should be a number`);
}
return numberValue;
}
getQueryParamAsNumberWithDefault(key: string, def: number): number {
return this.getQueryParamAsNumberOrUndefined(key) || def;
}
}
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