Establishing the request body for RESTful web services utilizing the POST technique

Question

Establishing the request body for RESTful web services utilizing the POST technique

Hey there, I'm currently working on creating a REST response using the POST method. I want to pass variables dynamically instead of hardcoding them. However, I am encountering an issue when trying to send an array as a parameter to the REST web service using the POST method (for example: array ["CN=XXX_XX,OU=XXXXX,OU=1_XXXX XXXXity Groups,DC=XXXX,DC=local"]). I know there must be a better way to achieve this. Below is a code sample that works effectively for me:

 try {
          var r = new sn_ws.RESTMessageV2('SailPoint_IdM', 'post');
          var txt = "{\r\n\t\"workflowArgs\":\r\n\t{\r\n\t\"identityName\":\"SiamR\",\r\n\t\"appName\":\"Active Directory\",\r\n\t\"listEntitlements\":[\"CN=ER_CxxxK,OU=xxxxx,OU=1_xxxxxx Security xxx,DC=xxxx,DC=local\"],\r\n\t\"operation\":\"Add\",\r\n\t\"ticketNumber\":\"RITM1234567\"\r\n}\r\n}";
    r.setRequestBody(txt);
    var response = r.execute();
    var ResponseBody = response.getBody();
    var HTTPCode = response.getStatusCode();
    gs.log(ResponseBody);
    gs.log(HTTPCode);

} catch (ex) {
    var message = ex.getMessage();
}

Output:

 Script: {"attributes":{"requestResult":{"status":"Success"}},"complete":false,"errors":null,"failure":false,"metaData":null,"requestID":"2c988d8c5bd47cf7015bebfb64cf01e6","retry":false,"retryWait":0,"status":null,"success":false,"warnings":null}
 Script: 200

And here is a second method that is not working as expected:

try {
 var r = new sn_ws.RESTMessageV2('SailPoint_IdM', 'post');
 r.setStringParameter('"listEntitlements"', '["CN=Exxx_xxxK,OU=xxxxion,OU=1_xxxxx Security xxxx,DC=xxx,DC=xxxx"]');
 r.setStringParameter('"identityName"', '"SiarmR"');
 r.setStringParameter('"appName"', '"Active Directory"');
 r.setStringParameter('"ticketNumber"', '"RITM1234567"');
 r.setStringParameter('operation', '"Add"');

var response = r.execute();
 var responseBody = response.getBody();
 var httpStatus = response.getStatusCode();
gs.log(responseBody );
}
catch(ex) {
 var message = ex.getMessage();
}

Output:

 Script: {"attributes":{"requestResult":{"errors":["An unexpected error occurred: sailpoint.tools.GeneralException: The application script threw an exception: java.lang.NullPointerException: Null Pointer in Method Invocation BSF info: script at line: 0 column: columnNo"],"status":"FAIL","GroupStatus":null,"AppStatus":null}},"complete":false,"errors":["Status : failed\nAn unexpected error occurred: sailpoint.tools.GeneralException: The application script threw an exception: java.lang.NullPointerException: Null Pointer in Method Invocation BSF info: script at line: 0 column: columnNo\n"],"failure":false,"metaData":null,"requestID":null,"retry":false,"retryWait":0,"status":null,"success":false,"warnings":null}

 Script: 200

I am currently facing an issue with passing the parameter '

["CN=Exxx_xxxK,OU=xxxxion,OU=1_xxxxx Security xxxx,DC=xxx,DC=xxxx"]

' as an array parameter. Please provide suggestions on how to implement this and successfully pass all variables dynamically if you recommend the first method.

javascript json rest soap servicenow

Answer 1

Answer №1

Here is a function I created to manage dynamic parameters that can appear in the request endpoint (url), headers, or body:

For example, let's consider parameter 'p'

var p = {abc: 'def'};

and the outbound REST settings:

rest url =  https://xxxx.sss.com/api/showme?name=${abc}
rest headers name =  custom-header; value =  ${abc}
rest body =  {name: "${abc}"}

This function will replace all instances of ${abc} with 'def'

_.isNullOrEmpty - checks if an object, string, or array is null or empty;
_.loop - loops through an object or array and executes a function(nm/i, val) {}
_.isArray - checks if it is an array
_.str - converts anything to a string
_.rpl - replaces all occurrences of string A with string B

restParameters: function (restRequest, obj, endpoint) {
    var _ = this;
    if ((_.isNullOrEmpty(restRequest)) || (_.isNullOrEmpty(obj))) return;
    if (_.isNullOrEmpty(endpoint)) endpoint = restRequest.getEndpoint();
    var body = restRequest.getRequestBody();
    var headers = restRequest.getRequestHeaders();
    _.loop(obj, function(nm, val) {
        if (_.isArray(val)) {
            val = (_.isNullOrEmpty(val)) ? '[]' : JSON.stringify(val);
        } else val = _.str(val);
        //for my case my array pass in as string become: "[\"1\", \"2\"]"
        //comment below if pass in as object
        if (val.contains('"')) val = _.rpl(val, '"', '\\"');

        restRequest.setStringParameterNoEscape(nm, val);
        var sch = '${' + nm + '}';
        endpoint = _.rpl(endpoint, sch, val);
        body = _.rpl(body, sch, val);
        _.loop(headers, function (hn, hv) {
            headers[hn] = _.rpl(hv, sch, val);
        });
    }, true);
    restRequest.setEndpoint(endpoint);
    restRequest.setRequestBody(body);
    _.loop(headers, function (hn, hv) { restRequest.setRequestHeader(hn, hv); });
}

Answer 2

Here is a function I created to manage dynamic parameters that can appear in the request endpoint (url), headers, or body:

For example, let's consider parameter 'p'

var p = {abc: 'def'};

and the outbound REST settings:

rest url =  https://xxxx.sss.com/api/showme?name=${abc}
rest headers name =  custom-header; value =  ${abc}
rest body =  {name: "${abc}"}

This function will replace all instances of ${abc} with 'def'

_.isNullOrEmpty - checks if an object, string, or array is null or empty;
_.loop - loops through an object or array and executes a function(nm/i, val) {}
_.isArray - checks if it is an array
_.str - converts anything to a string
_.rpl - replaces all occurrences of string A with string B

restParameters: function (restRequest, obj, endpoint) {
    var _ = this;
    if ((_.isNullOrEmpty(restRequest)) || (_.isNullOrEmpty(obj))) return;
    if (_.isNullOrEmpty(endpoint)) endpoint = restRequest.getEndpoint();
    var body = restRequest.getRequestBody();
    var headers = restRequest.getRequestHeaders();
    _.loop(obj, function(nm, val) {
        if (_.isArray(val)) {
            val = (_.isNullOrEmpty(val)) ? '[]' : JSON.stringify(val);
        } else val = _.str(val);
        //for my case my array pass in as string become: "[\"1\", \"2\"]"
        //comment below if pass in as object
        if (val.contains('"')) val = _.rpl(val, '"', '\\"');

        restRequest.setStringParameterNoEscape(nm, val);
        var sch = '${' + nm + '}';
        endpoint = _.rpl(endpoint, sch, val);
        body = _.rpl(body, sch, val);
        _.loop(headers, function (hn, hv) {
            headers[hn] = _.rpl(hv, sch, val);
        });
    }, true);
    restRequest.setEndpoint(endpoint);
    restRequest.setRequestBody(body);
    _.loop(headers, function (hn, hv) { restRequest.setRequestHeader(hn, hv); });
}

Establishing the request body for RESTful web services utilizing the POST technique

Answer №1

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