@atomicjolt/lti-client/dist/libs/lti.js

Client Javascript libraries to handle LTI.

import { DEEP_LINKING_CLAIM, LAUNCH_PRESENTATION, MESSAGE_TYPE, MessageTypes, NAMES_AND_ROLES_CLAIM, NAMES_AND_ROLES_SERVICE_VERSIONS, AGS_CLAIM, } from '@atomicjolt/lti-types';
export function lmsHost(idToken) {
    if (isDeepLinkLaunch(idToken)) {
        return idToken[DEEP_LINKING_CLAIM]?.deep_link_return_url || null;
    }
    else {
        return idToken[LAUNCH_PRESENTATION]?.return_url || null;
    }
}
export function lmsUrl(idToken) {
    return `https://${lmsHost(idToken)}`;
}
export function isDeepLinkLaunch(idToken) {
    return idToken[MESSAGE_TYPE] === MessageTypes.LtiDeepLinkingRequest;
}
export function isNamesAndRolesLaunch(idToken) {
    return idToken[NAMES_AND_ROLES_CLAIM]?.service_versions === NAMES_AND_ROLES_SERVICE_VERSIONS;
}
export function isAssignmentAndGradesLaunch(idToken) {
    return !!idToken[AGS_CLAIM];
}
export function clientId(idToken) {
    if (idToken.auds && idToken.auds.length > 1 && idToken.azp) {
        // azp will contain the client_id if there are multiple auds
        return idToken.azp;
    }
    else if (idToken.auds && idToken.auds[0]) {
        return idToken.auds[0];
    }
    else {
        return idToken.aud;
    }
}
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