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Regex to replace only some / characters inside strings

How to get regex with replace method? In my case I've got string which uses char / between.
input:
var string = "cn/" + companyName + "/st/" + state + "/ic/" + incCi + "/pr/" + priority + "/es/" + emplSystem + "/mc/" + mainCategory + "/sc/" + subCategory + "/ty/" + type;
output:
"cn/Nemesis Group/st/2/ic/null/pr/1 - High/es/null/mc/Add/Button/sc/Core/Label/ty/str"
variable mainCategory and subCategory returns string 'Add/Button' and 'Core/Label'
How to replace 'Add/Button' to 'Add%2FButton' and 'Core/Label' to 'Core%2FLabel' without changing any other char?
string.replace("\/", "%2F")
will change all char / to %2F

You can use encodeURIComponent() and decodeURIComponent() to transform this String
Example:
const companyName = "Company",
state = "State",
incCi = "IncCi",
priority = "Priority",
emplSystem = "EmplSystem",
mainCategory = 'Add/Button',
subCategory = 'Core/Label',
type = "Type";
var string = "cn/" + companyName + "/st/" + state + "/ic/" + incCi + "/pr/" + priority + "/es/" + emplSystem +
"/mc/" + encodeURIComponent(mainCategory) +
"/sc/" + encodeURIComponent(subCategory) + "/ty/" + type;
console.log(string)

It sounds to me like you are looking to encode the url. You can use encodeURI in JS to encode a url.
let encodedURL = encodeURI(url);
You can read more about it here.
If you want to encode the string altogether without ignoring any domain related parts, you can us encodeURIComponent()
let encodedURL = encodeURIComponent(url);
You can read more about their differences here.
EDIT:
If you are not encoding a url and you just want to repalce / with %2F only in mainCategory and subCategory then you need to run the regex on the string itself before joining them.
var string = "cn/" + companyName +
"/st/" + state +
"/ic/" + incCi +
"/pr/" + priority +
"/es/" + emplSystem +
"/mc/" + mainCategory.replace("\/", "%2F") +
"/sc/" + subCategory.replace("\/", "%2F") +
"/ty/" + type;

How to send encode string as a parameter into url string in angular and open in new tab

How to send encode string as a parameter into URL string in angular and open in new tab. I am trying to send multiple parameter separated by '-' and converted into base64 encode through url but it is throwing me into not found. I am using angular 8. using router.navigate , it is working fine but I want to open url in new tab.
here is my code in TS.
goToAssessmentPage(event, assignmentId, courseId, studentId, instituteId, sectionId , assignment_submission_id) {
event.preventDefault()
const string:string = btoa(courseId + '-' + assignmentId + '-' + studentId + '-' + instituteId + '-' + sectionId + '-' + assignment_submission_id)
const url: string = string + '/grader-assessment';
window.open(url, '_blank');
}
app.routing.ts
{
path: ':params/grader-assessment',
component: GraderAssessmentPageComponent
},

Well you'll more than likely need the whole url tree in that url string for window.open to work.
From the docs (https://angular.io/api/router/Router#createurltree)
// create /team/33/user/11
router.createUrlTree(['/team', 33, 'user', 11]);
And on top of that (https://angular.io/api/router/Router#serializeurl)
serializeUrl(url: UrlTree): string
So in your case it would be something like:
const string:string = btoa(courseId + '-' + assignmentId + '-' + studentId + '-' + instituteId + '-' + sectionId + '-' + assignment_submission_id)
const fullUrl:string = this.router.serializeUrl(router.createUrlTree([string, '/grader-assessment']));
// Then you navigate to this full url
window.open(fullUrl, '_blank');

Azure Account Shared Access Signiture

I am trying to construct an Account level Shared Access Signiture so my client can access all containers in a storage account. I am following these docs Account SAS. It seems straight forward enough but I keep getting the following error message:
"Signature did not match. String to sign used was accountname\nrl\nb\nsc\n\n2016-10-09\n\n\n2015-04-05\n".
My parameters are identical so I suspect it has something to do with how I am hashing the String to Sign. Below is how I construct the token.
var crypto = require('crypto');
var accountName = 'accountname';
var accountKey = 'tH37FTlG3TUT86caMrt2y5kOzof8nFqqA6spzg6r7HPRojE1zDiLJD/xE4oLFDh4RNqAmymvlV7fm8W4SF8cJg==';
var signedPermissions = "sp=rl";
var signedServcies = "ss=b";
var signedResourceType = "srt=sc";
var signedExpiry = "se=2016-10-09";
var signedVersion = "sv=2015-04-05";
var stringToSign = accountName + "\n" + signedPermissions + "\n" + signedServcies + "\n" + signedResourceType + "\n" + signedExpiry + "\n" + signedVersion + "\n";
var hmacsha256 = crypto.createHmac('sha256', accountKey).update(stringToSign).digest('base64');
var token = signedPermissions + "&" + signedServcies + "&" + signedResourceType + "&" + signedExpiry + "&" + signedVersion + "&sig=" + hmacsha256;
I have tried using crypto-js as well but to no avail. The final URL used to access a blob in a container is...
"https://accountname.blob.core.windows.net/containername/blobName?srt=sc&se=2016-10-09&api-version=2015-04-05&sp=rl&ss=b&sv=2015-04-05&sig=IFD2wyfRAsHGU5IFg3RbwSJW6tRE0m0%2FxgAYvJ%2FmnEk%3D"
I have been trying for days and really would appreciate knowing what I'm doing wrong. Thanks.

Benzene, for stringToSign, the value should NOT has the parameter name?
var signedPermissions = "rl";
var signedServcies = "b";
var signedResourceType = "sc";
var signedExpiry = "2016-10-09";
var signedVersion = "2015-04-05";

Please try the following (code shamelessly taken from Azure Storage Node.js library):
var hmacsha256 = crypto.createHmac('sha256', new Buffer(accountKey, 'base64')).update(stringToSign, 'utf-8').digest('base64');

oauth 1.0 -invalid signature GetRequestToken for Google

I could not find any active Oauth 1.0 support by Google as it has already been deprecated.
But as I want to access Gmail data,I am bound to use Oauth 1.0
So I have been trying since 2 days to get the RequestToken for my Google Application and I am getting the invalid signature error.
My base-string matches with the debug-string returned by google.
I have tried using both HMAC-SHA1 and RSA-SHA1 and my keys are correct.
(I have even tried using both token and secret as anonymous which Google recommends for non-registered applications.)
Could it be something due to wrong nonce or due to some percent-encoding issue.
The same method worked fine for Twitter.
I am also pasting my code below and would be glad if someone could help or point me to the right forum.
$('#GMAIL_BUTTON').click(function () {
//oauth1 approach similar to twitter
var requestUrl = "https://www.google.com/accounts/OAuthGetRequestToken";
var scope = "https://mail.google.com/";
var clientID = "anonymous";
var clientSecret = "anonymous";
var rsakey = "MIICblahblahblah";
var timestamp = Math.round(new Date().getTime() / 1000.0);
var nonce = Math.random();
var sigBaseStringParams = "oauth_consumer_key=" + clientID;
sigBaseStringParams += "&" + "oauth_nonce=" + nonce;
sigBaseStringParams += "&" + "oauth_signature_method=HMAC-SHA1";
sigBaseStringParams += "&" + "oauth_timestamp=" + timestamp;
sigBaseStringParams += "&" + "scope=" + encodeURIComponent(scope);
var sigBaseString = "GET&";
sigBaseString += encodeURIComponent(requestUrl) + "&" + encodeURIComponent(sigBaseStringParams) + "\n" + "\n";
requestUrl += "?scope=https://mail.google.com/";
var keyText = encodeURIComponent(clientSecret) + "&";
//var keyText = rsakey;
var keyMaterial = Windows.Security.Cryptography.CryptographicBuffer.convertStringToBinary(keyText, Windows.Security.Cryptography.BinaryStringEncoding.Utf8);
var macAlgorithmProvider = Windows.Security.Cryptography.Core.MacAlgorithmProvider.openAlgorithm("HMAC_SHA1");
var key = macAlgorithmProvider.createKey(keyMaterial);
//var keyMaterial = Windows.Security.Cryptography.CryptographicBuffer.decodeFromBase64String(rsakey);
//var macAlgorithmProvider = Windows.Security.Cryptography.Core.AsymmetricKeyAlgorithmProvider.openAlgorithm("RSASIGN_PKCS1_SHA1");
//var key = macAlgorithmProvider.importKeyPair(keyMaterial);
var tbs = Windows.Security.Cryptography.CryptographicBuffer.convertStringToBinary(sigBaseString, Windows.Security.Cryptography.BinaryStringEncoding.Utf8);
var signatureBuffer = Windows.Security.Cryptography.Core.CryptographicEngine.sign(key, tbs);
var signature = Windows.Security.Cryptography.CryptographicBuffer.encodeToBase64String(signatureBuffer);
var dataToPost = "OAuth oauth_consumer_key=\"" + clientID + "\", oauth_nonce=\"" + nonce + "\", oauth_signature_method=\"HMAC-SHA1\", oauth_timestamp=\"" + timestamp + "\", oauth_signature=\"" + encodeURIComponent(signature) + "\", oauth_version=\"1.0\"";
var response = sendGetRequest(requestUrl, dataToPost, null);
});
And the SendGetRequest method is -
function sendGetRequest(url, authzheader, params) {
try {
var request = new XMLHttpRequest();
request.open("GET", url, false);
request.setRequestHeader("Authorization", authzheader);
request.send(params);
return request.responseText;
} catch (err) {
WinJS.log("Error sending request: " + err, "Web Authentication SDK Sample", "error");
}
}

I couldn't find any glaring errors in your code, but you'll probably have a much easier time using Google's OAuth 2 for client-side apps library at https://developers.google.com/accounts/docs/OAuth2UserAgent. Further, you may want to use the atom feed scope (https://mail.google.com/mail/feed/atom)--you can give it and other scopes a try at https://code.google.com/oauthplayground/.

Formatting Strings in JavaScript to use as HTML "MAILTO" links

Here are some strings that I'm using to ultimately form a HTML mailto link. I'm doing this in javascript. If I output the mailtoString to an alert() I get the link looks just fine. However, when I put it into the location.href the string is cut short at the "&" character. How do I tell the location.href that the "&" is not the end of the mailto link?
var subject = escape('subject');
var body = escape('body');
var reportUrl = document.URL + "/GetUpdatedTableResults?beginDate=" + beginDate + "&endDate=" + endDate + "&fileId=" + DocId + '&languageCode=' + LangCode + '&documentResultType=' + result + '&result=' + ReportedIssue;
var excelUrl = document.URL + 'CurReport/GetCSVReport?beginDate=' + beginDate + '&endDate=' + endDate + '&fileId=' + DocId + '&languageCode=' + LangCode + '&documentResultType=' + result + '&result=' + ReportedIssue;
var mailtoString = 'mailto:?subject=' + subject + '&body=' + body + '%0A%0AWeb:%0A' + reportUrl + '%0A%0AExcel:%0A' + excelUrl;
location.href = mailtoString;
After running the code above I get the following output.
http://localhost:5050/CurReport/GetUpdatedTableResults?beginDate=0

Because immediately after mailto: should be the email address. ? is a valid email characters but & is not. Anyway, the & should be escaped to &.