@pnp/sp/behaviors/spfx.js

pnp - provides a fluent api for working with SharePoint REST

import { combine, dateAdd, isUrlAbsolute } from "@pnp/core";
import { BrowserFetchWithRetry, DefaultParse } from "@pnp/queryable";
import { DefaultHeaders, DefaultInit } from "./defaults.js";
import { RequestDigest } from "./request-digest.js";
class SPFxTokenNullOrUndefinedError extends Error {
    constructor(behaviorName) {
        super(`SPFx Context supplied to ${behaviorName} Behavior is null or undefined.`);
    }
    static check(behaviorName, context) {
        if (typeof context === "undefined" || context === null) {
            throw new SPFxTokenNullOrUndefinedError(behaviorName);
        }
    }
}
export function SPFxToken(context) {
    SPFxTokenNullOrUndefinedError.check("SPFxToken", context);
    return (instance) => {
        instance.on.auth.replace(async function (url, init) {
            const provider = await context.aadTokenProviderFactory.getTokenProvider();
            const token = await provider.getToken(`${url.protocol}//${url.hostname}`);
            // eslint-disable-next-line @typescript-eslint/dot-notation
            init.headers["Authorization"] = `Bearer ${token}`;
            return [url, init];
        });
        return instance;
    };
}
export function SPFx(context) {
    SPFxTokenNullOrUndefinedError.check("SPFx", context);
    return (instance) => {
        instance.using(DefaultHeaders(), DefaultInit(), BrowserFetchWithRetry(), DefaultParse(), 
        // remove SPFx Token in default due to issues #2570, #2571
        // SPFxToken(context),
        RequestDigest((url) => {
            var _a, _b, _c;
            const sameWeb = (new RegExp(`^${combine(context.pageContext.web.absoluteUrl, "/_api")}`, "i")).test(url);
            if (sameWeb && ((_b = (_a = context === null || context === void 0 ? void 0 : context.pageContext) === null || _a === void 0 ? void 0 : _a.legacyPageContext) === null || _b === void 0 ? void 0 : _b.formDigestValue)) {
                const creationDateFromDigest = new Date(context.pageContext.legacyPageContext.formDigestValue.split(",")[1]);
                // account for page lifetime in timeout #2304 & others
                // account for tab sleep #2550
                return {
                    value: context.pageContext.legacyPageContext.formDigestValue,
                    expiration: dateAdd(creationDateFromDigest, "second", ((_c = context.pageContext.legacyPageContext) === null || _c === void 0 ? void 0 : _c.formDigestTimeoutSeconds) - 15 || 1585),
                };
            }
        }));
        // we want to fix up the url first
        instance.on.pre.prepend(async (url, init, result) => {
            if (!isUrlAbsolute(url)) {
                url = combine(context.pageContext.web.absoluteUrl, url);
            }
            return [url, init, result];
        });
        return instance;
    };
}
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