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import rawAxios, { AxiosError, AxiosResponse } from "axios";
export const apiBaseUrl = "/api";
export const axios = rawAxios.create();
function convertToNetworkError(error: AxiosError): never {
if (error.isAxiosError && error.response == null) {
throw new HttpNetworkError(error);
} else {
throw error;
}
}
function convertToForbiddenError(error: AxiosError): never {
if (
error.isAxiosError &&
error.response != null &&
(error.response.status == 401 || error.response.status == 403)
) {
throw new HttpForbiddenError(error);
} else {
throw error;
}
}
function convertToNotFoundError(error: AxiosError): never {
if (
error.isAxiosError &&
error.response != null &&
error.response.status == 404
) {
throw new HttpNotFoundError(error);
} else {
throw error;
}
}
rawAxios.interceptors.response.use(undefined, convertToNetworkError);
rawAxios.interceptors.response.use(undefined, convertToForbiddenError);
rawAxios.interceptors.response.use(undefined, convertToNotFoundError);
axios.interceptors.response.use(undefined, convertToNetworkError);
axios.interceptors.response.use(undefined, convertToForbiddenError);
axios.interceptors.response.use(undefined, convertToNotFoundError);
let _token: string | null = null;
export function getHttpToken(): string | null {
return _token;
}
export function setHttpToken(token: string | null): void {
_token = token;
if (token == null) {
// eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
delete axios.defaults.headers.common["Authorization"];
} else {
// eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
axios.defaults.headers.common["Authorization"] = `Bearer ${token}`;
}
}
export function base64(blob: Blob | string): Promise<string> {
if (typeof blob === "string") {
return Promise.resolve(btoa(blob));
}
return new Promise<string>((resolve) => {
const reader = new FileReader();
reader.onload = function () {
resolve((reader.result as string).replace(/^data:.*;base64,/, ""));
};
reader.readAsDataURL(blob);
});
}
export function extractStatusCode(error: AxiosError): number | null {
if (error.isAxiosError) {
const code = error?.response?.status;
if (typeof code === "number") {
return code;
}
}
return null;
}
export interface CommonErrorResponse {
code: number;
message: string;
}
export function extractErrorCode(
error: AxiosError<CommonErrorResponse>
): number | null {
if (error.isAxiosError) {
const code = error.response?.data?.code;
if (typeof code === "number") {
return code;
}
}
return null;
}
export class HttpNetworkError extends Error {
constructor(public innerError?: AxiosError) {
super();
}
}
export class HttpForbiddenError extends Error {
constructor(public innerError?: AxiosError) {
super();
}
}
export class HttpNotFoundError extends Error {
constructor(public innerError?: AxiosError) {
super();
}
}
export class NotModified {}
export interface BlobWithEtag {
data: Blob;
etag: string;
}
export function extractResponseData<T>(res: AxiosResponse<T>): T {
return res.data;
}
export function catchIfStatusCodeIs<
TResult,
TErrorHandlerResult extends TResult | PromiseLike<TResult> | null | undefined
>(
statusCode: number,
errorHandler: (error: AxiosError<CommonErrorResponse>) => TErrorHandlerResult
): (error: AxiosError<CommonErrorResponse>) => TErrorHandlerResult {
return (error: AxiosError<CommonErrorResponse>) => {
if (extractStatusCode(error) == statusCode) {
return errorHandler(error);
} else {
throw error;
}
};
}
export function convertToIfStatusCodeIs<NewError>(
statusCode: number,
newErrorType: {
new (innerError: AxiosError): NewError;
}
): (error: AxiosError<CommonErrorResponse>) => never {
return catchIfStatusCodeIs(statusCode, (error) => {
throw new newErrorType(error);
});
}
export function catchIfErrorCodeIs<
TResult,
TErrorHandlerResult extends TResult | PromiseLike<TResult> | null | undefined
>(
errorCode: number,
errorHandler: (error: AxiosError<CommonErrorResponse>) => TErrorHandlerResult
): (error: AxiosError<CommonErrorResponse>) => TErrorHandlerResult {
return (error: AxiosError<CommonErrorResponse>) => {
if (extractErrorCode(error) == errorCode) {
return errorHandler(error);
} else {
throw error;
}
};
}
export function convertToIfErrorCodeIs<NewError>(
errorCode: number,
newErrorType: {
new (innerError: AxiosError): NewError;
}
): (error: AxiosError<CommonErrorResponse>) => never {
return catchIfErrorCodeIs(errorCode, (error) => {
throw new newErrorType(error);
});
}
export function convertToNotModified(
error: AxiosError<CommonErrorResponse>
): NotModified {
if (
error.isAxiosError &&
error.response != null &&
error.response.status == 304
) {
return new NotModified();
} else {
throw error;
}
}
export function convertToBlobWithEtag(res: AxiosResponse<Blob>): BlobWithEtag {
return {
data: res.data,
etag: (res.headers as Record<"etag", string>)["etag"],
};
}
export function extractEtag(res: AxiosResponse): string {
return (res.headers as Record<"etag", string>)["etag"];
}
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