Call Actions using Web API

function exampleCloseIncident(id, status){
    var parameters = {};
    var incidentresolution = {};
    incidentresolution["incidentid@odata.bind"] = "/incidents(" + id + ")";
    incidentresolution["@odata.type"] = "Microsoft.Dynamics.CRM.incidentresolution";
    parameters.IncidentResolution = incidentresolution;
    parameters.Status = status;
    
    callUnboundAction("CloseIncident", parameters, true, function(result){
        Xrm.Utility.alertDialog("Incident closed");
    });
}

function exampleQualifyLead(id){
    var payload = {
        "CreateAccount": createAccount,
        "CreateContact": createContact,
        "CreateOpportunity": false,
        "Status":3
    };

    callBoundAction("leads", id, "Microsoft.Dynamics.CRM.QualifyLead", payload, true, function(result){
        Xrm.Utility.alertDialog("Lead qualified");
    });
}

function callUnboundAction(actionname, payload, async, successCallback, errorCallback) {
    var req = new XMLHttpRequest();
    req.open("POST", encodeURI(getWebAPIPath() + actionname), async);
    req.setRequestHeader("OData-MaxVersion", "4.0");
    req.setRequestHeader("OData-Version", "4.0");
    req.setRequestHeader("Accept", "application/json");
    req.setRequestHeader("Content-Type", "application/json; charset=utf-8");
    req.onreadystatechange = function () {
        if (this.readyState === 4) {
            req.onreadystatechange = null;
            if (this.status == 200 || this.status == 204) {
                if (this.status == 200) {
                    var result = JSON.parse(this.response);
                }

                if (successCallback) {
                    successCallback(result);
                }
            } else {
                
                if(errorCallback) {
                    errorCallback(this);
                }
                else{
                    Xrm.Utility.alertDialog(this.statusText);
                }                
            }
        }
    };
    
    if (payload) {
        req.send(JSON.stringify(payload));
    }
    else {
        req.send();
    }
}

function callBoundAction(entitysetname, id, actionname, payload, async, successCallback, errorCallback) {
    var req = new XMLHttpRequest();
    req.open("POST", encodeURI(getWebAPIPath() + entitysetname + "(" + id + ")/" + actionname), async);
    req.setRequestHeader("OData-MaxVersion", "4.0");
    req.setRequestHeader("OData-Version", "4.0");
    req.setRequestHeader("Accept", "application/json");
    req.setRequestHeader("Content-Type", "application/json; charset=utf-8");
    req.onreadystatechange = function () {
        if (this.readyState === 4) {
            req.onreadystatechange = null;
            if (this.status == 200 || this.status == 204) {
                if (this.status == 200) {
                    var result = JSON.parse(this.response);
                }

                if (successCallback) {
                    successCallback(result);
                }
            } else {
                
                if(errorCallback) {
                    errorCallback(this);
                }
                else{
                    Xrm.Utility.alertDialog(this.statusText);
                }  
            }
        }
    };

    if (payload) {
        req.send(JSON.stringify(payload));
    }
    else {
        req.send();
    }      
}

function getClientUrl() {
    //Get the organization URL
    if (typeof GetGlobalContext == "function" &&
        typeof GetGlobalContext().getClientUrl == "function") {
        return GetGlobalContext().getClientUrl();
    }
    else {
        //If GetGlobalContext is not defined check for Xrm.Page.context;
        if (typeof Xrm != "undefined" &&
            typeof Xrm.Page != "undefined" &&
            typeof Xrm.Page.context != "undefined" &&
            typeof Xrm.Page.context.getClientUrl == "function") {
            try {
                return Xrm.Page.context.getClientUrl();
            } catch (e) {
                throw new Error("Xrm.Page.context.getClientUrl is not available.");
            }
        }
        else { throw new Error("Context is not available."); }
    }
}

function getWebAPIPath() {
    return getClientUrl() + "/api/data/v8.2/";
}