Update the Connection for a Variable

This example demonstrates how to update data flow objects and execute flows in Pyramid.

The example uses API authentication driven from JavaScript. See Authentication APIs for alternatives.

// URL of the Pyramid installation and the path to the API 3.0 REST methods
var pyramidURL = "http://mySite.com/api3/";
const DEMO_FILE = 'url/test.pie';
const FILE_NAME = 'test';
/*
example  - import master flow content, fix sources and execute
	createNewFolder - f1
	findRole  - role1
	addRoleToFolder - role1 to folder of item 1
	importContent 
	validateMasterFlow
	create server - optional 
	updateSourceNodeConnection
	updateTargetNodeConnection
	updateVariableConnection
	executeMasterFlow
	getMasterFlowProgressUpdate
*/


const token = callApi(
	'authentication/authenticateUser',
		{
			userName: 'pyramid user name',
				password: 'password',
		},
		"",
			false
	);
log('got token ' + token);

const defaultTenant = callApi('access/getDefaultTenant', "",token);

const tenantPublicFolder = callApi('content/getPublicOrGroupFolderByTenantId', {
	validRootFolderType: 1, //the public folder of the default tenant
	tenantId: defaultTenant,
},token);

const folderCreation = callApi('content/createNewFolder', {
	parentFolderId: tenantPublicFolder.id,
	folderName: 'new folder',
},token);
const folderId = folderCreation.modifiedList[0].id;

const findRole = callApi('access/getRolesByName', {
	searchValue: 'role 1',
	searchMatchType: 2, //SearchMatchType.Equals
},token);
const roleId = findRole[0].roleId;
log('found role with id= ' + roleId);

//adding the role we found to the folder we created (folderId)
	roleToItemApiData: {
	itemId: folderId,
	roleId: roleId, //SearchMatchType.Equals
	},token);

const pieFile = readPieFile(DEMO_FILE);
				
const importContent = callApi('content/importContent', {
	rootFolderId: folderId,
	fileZippedData: pieFile,
	clashDefaultOption: 1, //ClashDefaultOption.REPLACE_FILE like default
	rolesAssignmentType: 3, //RoleAssignmentType.ForceParentFolderRoles take roles from parent folder
	},token);
log('import file completed');

//search for the item we just imported
	const findContentItem = callApi('content/findContentItem', {
		searchString: FILE_NAME,
		filterTypes: [4], //ContentTypeObject.ETLFlow
		searchMatchType: 2, //SearchMatchType.Equals
		searchRootFolderType: 1, //SearchRootFolderType.Public
	},token);
				
const itemId = findContentItem[0].id;
log('found the file by name: item ID is ' + itemId);

//validate master flow
const validationResult = callApi('dataSources/validateMasterFlow', {
	itemId: itemId
},token);

// random GUID
const serverId = '7385130a-d87f-404d-816b-5c296c27b4ad';
				
// handle sources issues
if (validationResult.sources.length > 0) {
log('create server');
				
// create server (if has alreafy get it by server name)
	const createResult = callApi('dataSources/createDataServers', [
		{
		id: serverId,
		serverName: 'apiMashwinds',
		serverType: 5,
		serverIp: '172.29.3.219',
		port: 1433,
		writeCapable: 1,
		securedByUser: false,
		serverAuthenticationMethod: 0,
		userName: 'sa',
		password: 'snap3535!',
		useGlobalAccount: false,
		overlayPyramidSecurity: false,
		},
	],token);

log('fixing sources');
				
// In this example only the server ID is replaced, where the database remains the same
const sourceObject = validationResult.sources[0];
				
const modifiedItemsResult = callApi('dataSources/updateSourceNodeConnection', {
	dataFlowNodeId: sourceObject.dataFlowNodeId,
	serverId: serverId,
	databaseName: sourceObject.databaseName,
},token);

log('fixing targets');
if (validationResult.targets.length > 0) {
		const targetObject = validationResult.targets[0];
		const res = callApi('dataSources/updateTargetNodeConnection', {
			useExistingDatabase: false,
			itemId: itemId,
			dataFlowNodeId: targetObject.dataFlowNodeId,
			serverId: serverId,
			databaseName: 'NewDbExample',
	},token);
}

log('fixing variables');
if (validationResult.variables.length > 0) {
	const variableObject = validationResult.variables[0];
		const res = callApi('dataSources/updateVariableConnection', {
			itemId: itemId,
			variableName: variableObject.variableName,
			serverId: serverId,
	},token);
}

log('execute master flow');
const executeMasterFlowResult = callApi('dataSources/executeMasterFlow', {
	itemId: itemId,
},token);

const scheduleId = executeMasterFlowResult.scheduleId;
let inProgress = true;
let counter = 0;

// while
while (inProgress && counter < 60) {
	const masterFlowProgressUpdate = callApi('dataSources/getMasterFlowProgressUpdate', scheduleId, token);
const taskStatus = masterFlowProgressUpdate.taskStatus;
if (
	taskStatus == null ||
	taskStatus == 0 /*TaskStatus.PENDING*/ ||
	taskStatus == 4 /*TaskStatus.RUNNING*/
) {
counter++;
	setTimeout(() => console.log('sleep'), 1000);
	log('taskStatus: ' + taskStatus + ' counter: ' + counter);
	} else {
	log('Execute finish - ' + taskStatus);
	inProgress = false;
	}
}

log('Finished');

function log(msg) {
	document.write(msg );
	console.log(msg);
}

// ##### generic REST API calling method ##############
function callApi(path,data,token="",parseResult=true){
	var xhttp = new XMLHttpRequest();
	xhttp.open("POST", pyramidURL+path, false);
	xhttp.setRequestHeader("paToken",token)
	xhttp.send(JSON.stringify(data));
	if(parseResult){
		return JSON.parse(xhttp.responseText);
	}else{
		return xhttp.responseText;
	}
}

function readPieFile(file) {
	var rawFile = new XMLHttpRequest();
	rawFile.open('GET', file, false);
	rawFile.send();
	if (rawFile.readyState === 4 && rawFile.status === 200) {
		return rawFile.responseText;
	}
}