Files
clean-architecture-frontend…/src/adapters/http/request-builder.ts
T

75 lines
2.2 KiB
TypeScript

import type { ApiOperation } from "../../contracts/api-operations.js";
export type OperationRequestInput = Readonly<{
operationId: string;
routeId: string;
pathParams?: Readonly<Record<string, string | number>>;
searchParams?: unknown;
body?: unknown;
signal?: AbortSignal;
idempotencyKey?: string;
correlationId?: string;
}>;
export type RequestTargetResult =
| Readonly<{ success: true; url: URL }>
| Readonly<{
success: false;
code: "PATH_PARAMETER_MISSING" | "SEARCH_PARAMETER_INVALID";
}>;
const pathParameterPattern = /:([A-Za-z][A-Za-z0-9_]*)|\{([A-Za-z][A-Za-z0-9_]*)\}/g;
export function buildRequestTarget(
baseUrl: string,
operation: ApiOperation,
pathParams: Readonly<Record<string, string | number>> = {},
parsedSearch: unknown = {},
): RequestTargetResult {
let missingPathParameter = false;
const pathname = operation.path.replace(
pathParameterPattern,
(_token, colonName: string | undefined, braceName: string | undefined) => {
const name = colonName ?? braceName ?? "";
const value = pathParams[name];
if (value === undefined) {
missingPathParameter = true;
return "";
}
return encodeURIComponent(String(value));
},
);
if (missingPathParameter) {
return { success: false, code: "PATH_PARAMETER_MISSING" };
}
if (
parsedSearch === null ||
typeof parsedSearch !== "object" ||
Array.isArray(parsedSearch)
) {
return { success: false, code: "SEARCH_PARAMETER_INVALID" };
}
const url = new URL(pathname, baseUrl);
const search = parsedSearch as Readonly<Record<string, unknown>>;
for (const key of Object.keys(search).sort((left, right) =>
left.localeCompare(right),
)) {
const value = search[key];
if (value === undefined || value === null) continue;
const values = Array.isArray(value) ? value : [value];
for (const item of values) {
if (
typeof item !== "string" &&
typeof item !== "number" &&
typeof item !== "boolean"
) {
return { success: false, code: "SEARCH_PARAMETER_INVALID" };
}
url.searchParams.append(key, String(item));
}
}
return { success: true, url };
}