@jupyterlab/services
Version:
Client APIs for the Jupyter services REST APIs
65 lines • 2.39 kB
JavaScript
;
// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.
Object.defineProperty(exports, "__esModule", { value: true });
exports.NbConvertManager = void 0;
const coreutils_1 = require("@jupyterlab/coreutils");
const serverconnection_1 = require("../serverconnection");
const coreutils_2 = require("@lumino/coreutils");
/**
* The url for the lab nbconvert service.
*/
const NBCONVERT_SETTINGS_URL = 'api/nbconvert';
/**
* The nbconvert API service manager.
*/
class NbConvertManager {
/**
* Create a new nbconvert manager.
*/
constructor(options = {}) {
var _a;
this._exportFormats = null;
this.serverSettings =
(_a = options.serverSettings) !== null && _a !== void 0 ? _a : serverconnection_1.ServerConnection.makeSettings();
}
/**
* Fetch and cache the export formats from the expensive nbconvert handler.
*/
async fetchExportFormats() {
this._requestingFormats = new coreutils_2.PromiseDelegate();
this._exportFormats = null;
const base = this.serverSettings.baseUrl;
const url = coreutils_1.URLExt.join(base, NBCONVERT_SETTINGS_URL);
const { serverSettings } = this;
const response = await serverconnection_1.ServerConnection.makeRequest(url, {}, serverSettings);
if (response.status !== 200) {
const err = await serverconnection_1.ServerConnection.ResponseError.create(response);
throw err;
}
const data = await response.json();
const exportList = {};
const keys = Object.keys(data);
keys.forEach(function (key) {
const mimeType = data[key].output_mimetype;
exportList[key] = { output_mimetype: mimeType };
});
this._exportFormats = exportList;
this._requestingFormats.resolve(exportList);
return exportList;
}
/**
* Get the list of export formats, preferring pre-cached ones.
*/
async getExportFormats(force = true) {
if (this._requestingFormats) {
return this._requestingFormats.promise;
}
if (force || !this._exportFormats) {
return await this.fetchExportFormats();
}
return this._exportFormats;
}
}
exports.NbConvertManager = NbConvertManager;
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