@focuson/utils/dist/src/fetchfn.js

Common utilities for the @focuson project

"use strict";
/** This is a wrapper for the javascript fetch function. The input parameters are the same as for fetch. The output is the statuscode and a T, where T is the expected json type
 *
 * T is probably not meaningful if the status code is not a 2xx
 * */
Object.defineProperty(exports, "__esModule", { value: true });
exports.loadingCursorFetch = exports.fetchWithDelay = exports.fetchWithPrefix = exports.loggingResultFetchFn = exports.loggingFetchFn = exports.defaultFetchFn = exports.delay = exports.isNode = exports.setIsNodeFetchForTests = void 0;
function setIsNodeFetchForTests() {
    exports.isNode = true;
}
exports.setIsNodeFetchForTests = setIsNodeFetchForTests;
exports.isNode = false;
// try {isNode= this===global;}catch(e){isNode= false;}
// const actualFetch = isNode ? require ( "node-fetch" ) : fetch
function delay(ms) {
    return new Promise(resolve => {
        setTimeout(() => {
            resolve({});
        }, ms);
    });
}
exports.delay = delay;
var nodeFetch = undefined;
function actualFetch(requestInfo, init) {
    if (exports.isNode) {
        if (!nodeFetch) {
            nodeFetch = require("node-fetch");
        }
        return nodeFetch(requestInfo, init);
    }
    return fetch(requestInfo, init);
}
/** Normally we would use the defaultFetchFn or the loggingFetchFn */
const defaultFetchFn = (re, init) => {
    if (re === "")
        throw Error('calling defaultFetchFn with empty string as url');
    try {
        return actualFetch(re, init).then((r) => r.ok
            ? r.json().then((json) => [r.status, json])
            : r.text().then((text) => [r.status, text])).catch(e => {
            console.error(e);
            throw e;
        });
    }
    catch (e) {
        console.error(e);
        return Promise.reject(e);
    }
};
exports.defaultFetchFn = defaultFetchFn;
/** Normally we would use the defaultFetchFn or the loggingFetchFn */
function loggingFetchFn(re, init) {
    console.log("fetching from", re, init);
    return (0, exports.defaultFetchFn)(re, init);
}
exports.loggingFetchFn = loggingFetchFn;
/** Normally we would use the defaultFetchFn or the loggingFetchFn */
function loggingResultFetchFn(re, init) {
    console.log("fetching from", re, init);
    return (0, exports.defaultFetchFn)(re, init);
}
exports.loggingResultFetchFn = loggingResultFetchFn;
function fetchWithPrefix(prefix, fetchFn) {
    return (re, init) => {
        if (typeof re === 'string')
            return fetchFn(prefix + re, init);
        else
            throw new Error(`Cannot handle request ${re}`);
    };
}
exports.fetchWithPrefix = fetchWithPrefix;
function fetchWithDelay(ms, fetchFn) {
    return (re, init) => delay(ms).then(() => fetchFn(re, init));
}
exports.fetchWithDelay = fetchWithDelay;
function loadingCursorFetch(fetchFn) {
    var count = 0;
    return (re, init) => {
        // console.log ( 'loadingCursorFetch', count )
        if (count === 0) {
            document.body.style.cursor = "wait";
            // console.log ( 'loadingCursorFetch - wait' )
        }
        count += 1;
        return fetchFn(re, init).finally(() => {
            // console.log ( 'loadingCursorFetch - finally', count )
            count -= 1;
            if (count === 0)
                if (count === 0) {
                    // console.log ( 'loadingCursorFetch - back to default', count )
                    document.body.style.cursor = "default";
                }
        });
    };
}
exports.loadingCursorFetch = loadingCursorFetch;