@azure/data-tables
Version:
An isomorphic client library for the Azure Tables service.
56 lines • 1.71 kB
JavaScript
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
/**
* Creates a {@link TableSasPermissions} from the specified permissions string. This method will throw an
* Error if it encounters a character that does not correspond to a valid permission.
*
* @param permissions -
*/
export function tableSasPermissionsFromString(permissions) {
const tableSasPermissions = {};
for (const char of permissions) {
switch (char) {
case "r":
tableSasPermissions.query = true;
break;
case "a":
tableSasPermissions.add = true;
break;
case "u":
tableSasPermissions.update = true;
break;
case "d":
tableSasPermissions.delete = true;
break;
default:
throw new RangeError(`Invalid permission: ${char}`);
}
}
return tableSasPermissions;
}
/**
* Converts the given permissions to a string. Using this method will guarantee the permissions are in an
* order accepted by the service.
*
* @returns A string which represents the TableSasPermissions
*/
export function tableSasPermissionsToString(permissions) {
if (!permissions) {
return "";
}
const permissionsString = [];
if (permissions.query) {
permissionsString.push("r");
}
if (permissions.add) {
permissionsString.push("a");
}
if (permissions.update) {
permissionsString.push("u");
}
if (permissions.delete) {
permissionsString.push("d");
}
return permissionsString.join("");
}
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