feat(Linear Node): Add Linear Node (#2971)

* ✨ Linear node

* ⚡ Improvements

packages/nodes-base/nodes/Linear/GenericFunctions.ts

@@ -8,13 +8,21 @@ import {
 } from 'n8n-core';
 
 import {
+	ICredentialDataDecryptedObject,
+	ICredentialTestFunctions,
 	IDataObject,
 	IHookFunctions,
 	IWebhookFunctions,
+	JsonObject,
 	NodeApiError,
-	NodeOperationError,
 } from 'n8n-workflow';
 
+import get = require('lodash.get');
+
+import { 
+	query,
+} from './Queries';
+
 export async function linearApiRequest(this: IExecuteFunctions | IWebhookFunctions | IHookFunctions | ILoadOptionsFunctions, body: any = {}, option: IDataObject = {}): Promise<any> { // tslint:disable-line:no-any
 	const credentials = await this.getCredentials('linearApi') as IDataObject;
 
@@ -32,14 +40,60 @@ export async function linearApiRequest(this: IExecuteFunctions | IWebhookFunctio
 	};
 	options = Object.assign({}, options, option);
 	try {
-
 		return await this.helpers.request!(options);
 
 	} catch (error) {
-		throw new NodeApiError(this.getNode(), error);
+		throw new NodeApiError(this.getNode(), error as JsonObject);
 	}
 }
 
 export function capitalizeFirstLetter(data: string) {
 	return data.charAt(0).toUpperCase() + data.slice(1);
-}
+}
+
+export async function linearApiRequestAllItems(this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions, propertyName: string, body: any = {}): Promise<any> { // tslint:disable-line:no-any
+
+	const returnData: IDataObject[] = [];
+
+	let responseData;
+	body.variables.first = 50;
+	body.variables.after = null;
+
+	do {
+		responseData = await linearApiRequest.call(this, body);
+		returnData.push.apply(returnData, get(responseData, `${propertyName}.nodes`));
+		body.variables.after = get(responseData, `${propertyName}.pageInfo.endCursor`);
+	} while (
+		get(responseData, `${propertyName}.pageInfo.hasNextPage`)
+	);
+	return returnData;
+}
+
+export async function validateCrendetials(this: ICredentialTestFunctions, decryptedCredentials: ICredentialDataDecryptedObject): Promise<any> { // tslint:disable-line:no-any
+	const credentials = decryptedCredentials;
+
+	const options: OptionsWithUri = {
+		headers: {
+			'Content-Type': 'application/json',
+			Authorization: credentials.apiKey,
+		},
+		method: 'POST',
+		body: {
+			query: query.getIssues(),
+			variables: {
+				first: 1,
+			},
+		},
+		uri: 'https://api.linear.app/graphql',
+		json: true,
+	};
+
+	return this.helpers.request!(options);
+}
+
+//@ts-ignore
+export const sort = (a, b) => {
+	if (a.name.toLocaleLowerCase() < b.name.toLocaleLowerCase()) { return -1; }
+	if (a.name.toLocaleLowerCase() > b.name.toLocaleLowerCase()) { return 1; }
+	return 0;
+};

packages/nodes-base/nodes/Linear/IssueDescription.ts

@@ -0,0 +1,338 @@
+import {
+	INodeProperties,
+} from 'n8n-workflow';
+
+export const issueOperations: INodeProperties[] = [
+	{
+		displayName: 'Operation',
+		name: 'operation',
+		type: 'options',
+		displayOptions: {
+			show: {
+				resource: [
+					'issue',
+				],
+			},
+		},
+		options: [
+			{
+				name: 'Create',
+				value: 'create',
+				description: 'Create an issue',
+			},
+			{
+				name: 'Delete',
+				value: 'delete',
+				description: 'Delete an issue',
+			},
+			{
+				name: 'Get',
+				value: 'get',
+				description: 'Get an issue',
+			},
+			{
+				name: 'Get All',
+				value: 'getAll',
+				description: 'Get all issues',
+			},
+			{
+				name: 'Update',
+				value: 'update',
+				description: 'Update an issue',
+			},
+		],
+		default: 'create',
+	},
+];
+
+export const issueFields: INodeProperties[] = [
+
+	/* -------------------------------------------------------------------------- */
+	/*                                 issue:create                               */
+	/* -------------------------------------------------------------------------- */
+	{
+		displayName: 'Team Name/ID',
+		name: 'teamId',
+		type: 'options',
+		required: true,
+		displayOptions: {
+			show: {
+				resource: [
+					'issue',
+				],
+				operation: [
+					'create',
+				],
+			},
+		},
+		typeOptions: {
+			loadOptionsMethod: 'getTeams',
+		},
+		default: '',
+	},
+	{
+		displayName: 'Title',
+		name: 'title',
+		type: 'string',
+		required: true,
+		displayOptions: {
+			show: {
+				resource: [
+					'issue',
+				],
+				operation: [
+					'create',
+				],
+			},
+		},
+		default: '',
+	},
+	{
+		displayName: 'Additional Fields',
+		name: 'additionalFields',
+		type: 'collection',
+		placeholder: 'Add Field',
+		default: {},
+		displayOptions: {
+			show: {
+				resource: [
+					'issue',
+				],
+				operation: [
+					'create',
+				],
+			},
+		},
+		options: [
+			{
+				displayName: 'Assignee Name/ID',
+				name: 'assigneeId',
+				type: 'options',
+				typeOptions: {
+					loadOptionsMethod: 'getUsers',
+				},
+				default: '',
+			},
+			{
+				displayName: 'Description',
+				name: 'description',
+				type: 'string',
+				typeOptions: {
+					alwaysOpenEditWindow: true,
+				},
+				default: '',
+			},
+			{
+				displayName: 'Priority Name/ID',
+				name: 'priorityId',
+				type: 'options',
+				options: [
+					{
+						name: 'Urgent',
+						value: 1,
+					},
+					{
+						name: 'High',
+						value: 2,
+					},
+					{
+						name: 'Medium',
+						value: 3,
+					},
+					{
+						name: 'Low',
+						value: 3,
+					},
+					{
+						name: 'No Priority',
+						value: 0,
+					},
+				],
+				default: 0,
+			},
+			{
+				displayName: 'State Name/ID',
+				name: 'stateId',
+				type: 'options',
+				typeOptions: {
+					loadOptionsMethod: 'getStates',
+				},
+				default: '',
+			},
+		],
+	},
+	/* -------------------------------------------------------------------------- */
+	/*                                 issue:delete                                */
+	/* -------------------------------------------------------------------------- */
+	{
+		displayName: 'Issue ID',
+		name: 'issueId',
+		type: 'string',
+		required: true,
+		displayOptions: {
+			show: {
+				resource: [
+					'issue',
+				],
+				operation: [
+					'get',
+					'delete',
+				],
+			},
+		},
+		default: '',
+	},
+	/* -------------------------------------------------------------------------- */
+	/*                                 issue:getAll                               */
+	/* -------------------------------------------------------------------------- */
+	{
+		displayName: 'Return All',
+		name: 'returnAll',
+		type: 'boolean',
+		default: false,
+		displayOptions: {
+			show: {
+				resource: [
+					'issue',
+				],
+				operation: [
+					'getAll',
+				],
+			},
+		},
+		description: 'Whether to return all results or only up to a given limit',
+	},
+	{
+		displayName: 'Limit',
+		name: 'limit',
+		type: 'number',
+		default: 50,
+		typeOptions: {
+			minValue: 1,
+			maxValue: 300,
+		},
+		displayOptions: {
+			show: {
+				resource: [
+					'issue',
+				],
+				operation: [
+					'getAll',
+				],
+				returnAll: [
+					false,
+				],
+			},
+		},
+		description: 'Max number of results to return',
+	},
+	/* -------------------------------------------------------------------------- */
+	/*                                 issue:update                               */
+	/* -------------------------------------------------------------------------- */
+	{
+		displayName: 'Issue ID',
+		name: 'issueId',
+		type: 'string',
+		required: true,
+		displayOptions: {
+			show: {
+				resource: [
+					'issue',
+				],
+				operation: [
+					'update',
+				],
+			},
+		},
+		default: '',
+	},
+	{
+		displayName: 'Update Fields',
+		name: 'updateFields',
+		type: 'collection',
+		placeholder: 'Add Field',
+		default: {},
+		displayOptions: {
+			show: {
+				resource: [
+					'issue',
+				],
+				operation: [
+					'update',
+				],
+			},
+		},
+		options: [
+			{
+				displayName: 'Assignee Name/ID',
+				name: 'assigneeId',
+				type: 'options',
+				typeOptions: {
+					loadOptionsMethod: 'getUsers',
+				},
+				default: '',
+			},
+			{
+				displayName: 'Description',
+				name: 'description',
+				type: 'string',
+				typeOptions: {
+					alwaysOpenEditWindow: true,
+				},
+				default: '',
+			},
+			{
+				displayName: 'Priority Name/ID',
+				name: 'priorityId',
+				type: 'options',
+				options: [
+					{
+						name: 'Urgent',
+						value: 1,
+					},
+					{
+						name: 'High',
+						value: 2,
+					},
+					{
+						name: 'Medium',
+						value: 3,
+					},
+					{
+						name: 'Low',
+						value: 3,
+					},
+					{
+						name: 'No Priority',
+						value: 0,
+					},
+				],
+				default: 0,
+			},
+			{
+				displayName: 'State Name/ID',
+				name: 'stateId',
+				type: 'options',
+				typeOptions: {
+					loadOptionsMethod: 'getStates',
+				},
+				default: '',
+			},
+			{
+				displayName: 'Team Name/ID',
+				name: 'teamId',
+				type: 'options',
+				typeOptions: {
+					loadOptionsMethod: 'getTeams',
+				},
+				default: '',
+			},
+			{
+				displayName: 'Title',
+				name: 'title',
+				type: 'string',
+				default: '',
+			},
+		],
+	},
+];

packages/nodes-base/nodes/Linear/Linear.node.ts

@@ -0,0 +1,258 @@
+import {
+	IExecuteFunctions,
+} from 'n8n-core';
+
+import {
+	ICredentialDataDecryptedObject,
+	ICredentialsDecrypted,
+	ICredentialTestFunctions,
+	IDataObject,
+	ILoadOptionsFunctions,
+	INodeCredentialTestResult,
+	INodeExecutionData,
+	INodePropertyOptions,
+	INodeType,
+	INodeTypeDescription,
+	JsonObject,
+} from 'n8n-workflow';
+
+import {
+	linearApiRequest,
+	linearApiRequestAllItems,
+	sort,
+	validateCrendetials,
+} from './GenericFunctions';
+
+import {
+	issueFields,
+	issueOperations,
+} from './IssueDescription';
+
+import {
+	query,
+} from './Queries';
+interface IGraphqlBody {
+	query: string;
+	variables: IDataObject;
+}
+export class Linear implements INodeType {
+	description: INodeTypeDescription = {
+		displayName: 'Linear',
+		name: 'linear',
+		icon: 'file:linear.svg',
+		group: ['output'],
+		version: 1,
+		subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
+		description: 'Consume Linear API',
+		defaults: {
+			name: 'Linear',
+		},
+		inputs: ['main'],
+		outputs: ['main'],
+		credentials: [
+			{
+				name: 'linearApi',
+				required: true,
+				testedBy: 'linearApiTest',
+			},
+		],
+		properties: [
+			{
+				displayName: 'Resource',
+				name: 'resource',
+				type: 'options',
+				options: [
+					{
+						name: 'Issue',
+						value: 'issue',
+					},
+				],
+				default: 'issue',
+			},
+			...issueOperations,
+			...issueFields,
+		],
+	};
+
+	methods = {
+		credentialTest: {
+			async linearApiTest(this: ICredentialTestFunctions, credential: ICredentialsDecrypted): Promise<INodeCredentialTestResult> {
+				try {
+					await validateCrendetials.call(this, credential.data as ICredentialDataDecryptedObject);
+				} catch (error) {
+					const { error: err } = error as JsonObject;
+					const errors = (err as IDataObject).errors as [{ extensions: { code: string } }];
+					const authenticationError = Boolean(errors.filter(e => e.extensions.code === 'AUTHENTICATION_ERROR').length);
+					if (authenticationError) {
+						return {
+							status: 'Error',
+							message: 'The security token included in the request is invalid',
+						};
+					}
+				}
+
+				return {
+					status: 'OK',
+					message: 'Connection successful!',
+				};
+			},
+		},
+		loadOptions: {
+			async getTeams(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
+				const returnData: INodePropertyOptions[] = [];
+				const body = {
+					query: query.getTeams(),
+					variables: {
+						$first: 10,
+					},
+				};
+				const teams = await linearApiRequestAllItems.call(this, 'data.teams', body);
+
+				for (const team of teams) {
+					returnData.push({
+						name: team.name,
+						value: team.id,
+					});
+				}
+				return returnData;
+			},
+			async getUsers(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
+				const returnData: INodePropertyOptions[] = [];
+				const body = {
+					query: query.getUsers(),
+					variables: {
+						$first: 10,
+					},
+				};
+				const users = await linearApiRequestAllItems.call(this, 'data.users', body);
+
+				for (const user of users) {
+					returnData.push({
+						name: user.name,
+						value: user.id,
+					});
+				}
+				return returnData;
+			},
+			async getStates(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
+				const returnData: INodePropertyOptions[] = [];
+				const body = {
+					query: query.getStates(),
+					variables: {
+						$first: 10,
+					},
+				};
+				const states = await linearApiRequestAllItems.call(this, 'data.workflowStates', body);
+
+				for (const state of states) {
+					returnData.push({
+						name: state.name,
+						value: state.id,
+					});
+				}
+				return returnData.sort(sort);
+			},
+		},
+	};
+
+	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
+		const items = this.getInputData();
+		const returnData: IDataObject[] = [];
+		const length = items.length as unknown as number;
+		let responseData;
+		const qs: IDataObject = {};
+		const resource = this.getNodeParameter('resource', 0) as string;
+		const operation = this.getNodeParameter('operation', 0) as string;
+		for (let i = 0; i < length; i++) {
+			try {
+				if (resource === 'issue') {
+					if (operation === 'create') {
+						const teamId = this.getNodeParameter('teamId', i) as string;
+						const title = this.getNodeParameter('title', i) as string;
+						const additionalFields = this.getNodeParameter('additionalFields', i) as IDataObject;
+						const body: IGraphqlBody = {
+							query: query.createIssue(),
+							variables: {
+								teamId,
+								title,
+								...additionalFields,
+							},
+						};
+
+						responseData = await linearApiRequest.call(this, body);
+						responseData = responseData.data.issueCreate?.issue;
+					}
+					if (operation === 'delete') {
+						const issueId = this.getNodeParameter('issueId', i) as string;
+						const body: IGraphqlBody = {
+							query: query.deleteIssue(),
+							variables: {
+								issueId,
+							},
+						};
+
+						responseData = await linearApiRequest.call(this, body);
+						responseData = responseData?.data?.issueDelete;
+					}
+					if (operation === 'get') {
+						const issueId = this.getNodeParameter('issueId', i) as string;
+						const body: IGraphqlBody = {
+							query: query.getIssue(),
+							variables: {
+								issueId,
+							},
+						};
+
+						responseData = await linearApiRequest.call(this, body);
+						responseData = responseData.data?.issues?.nodes[0];
+					}
+					if (operation === 'getAll') {
+						const returnAll = this.getNodeParameter('returnAll', i) as boolean;
+						const body: IGraphqlBody = {
+							query: query.getIssues(),
+							variables: {
+								first: 50,
+							},
+						};
+						if (returnAll) {
+							responseData = await linearApiRequestAllItems.call(this, 'data.issues', body);
+						} else {
+							const limit = this.getNodeParameter('limit', 0) as number;
+							body.variables.first = limit;
+							responseData = await linearApiRequest.call(this, body);
+							responseData = responseData.data.issues.nodes;
+						}
+					}
+					if (operation === 'update') {
+						const issueId = this.getNodeParameter('issueId', i) as string;
+						const updateFields = this.getNodeParameter('updateFields', i) as IDataObject;
+						const body: IGraphqlBody = {
+							query: query.updateIssue(),
+							variables: {
+								issueId,
+								...updateFields,
+							},
+						};
+
+						responseData = await linearApiRequest.call(this, body);
+						responseData = responseData?.data?.issueUpdate?.issue;
+					}
+				}
+				if (Array.isArray(responseData)) {
+					returnData.push.apply(returnData, responseData as IDataObject[]);
+				} else {
+					returnData.push(responseData as IDataObject);
+				}
+			} catch (error) {
+				if (this.continueOnFail()) {
+					returnData.push({
+						error: (error as JsonObject).message,
+					});
+					continue;
+				}
+				throw error;
+			}
+		}
+		return [this.helpers.returnJsonArray(returnData)];
+	}
+}

packages/nodes-base/nodes/Linear/LinearTrigger.node.ts

@@ -35,6 +35,7 @@ export class LinearTrigger implements INodeType {
 			{
 				name: 'linearApi',
 				required: true,
+				testedBy: 'linearApiTest',
 			},
 		],
 		webhooks: [

packages/nodes-base/nodes/Linear/Queries.ts

@@ -0,0 +1,208 @@
+export const query = {
+	getUsers() {
+		return `query Users ($first: Int){
+			users (first: $first){
+				nodes {
+					id
+					name
+				},
+				pageInfo {
+					hasNextPage
+					endCursor
+			}
+		}}`;
+	},
+	getTeams() {
+		return `query Teams ($first: Int, $after: String){
+				teams (first: $first, after: $after){
+					nodes {
+						id
+						name
+					}
+					pageInfo {
+						hasNextPage
+						endCursor
+					}
+			}}`;
+	},
+	getStates() {
+		return `query States ($first: Int){
+				workflowStates (first: $first){
+					nodes {
+						id
+						name
+					},
+					pageInfo {
+						hasNextPage
+						endCursor
+				}
+			}}`;
+	},
+	createIssue() {
+		return `mutation IssueCreate (
+			$title: String!,
+			$teamId: String!,
+			$description: String,
+			$assigneeId: String,
+			$priorityId: Int,
+			$stateId: String){
+			issueCreate(
+				input: {
+					title: $title
+					description: $description
+					teamId: $teamId
+					assigneeId: $assigneeId
+					priority: $priorityId
+					stateId: $stateId
+				}
+			) {
+				success
+					issue {
+						id,
+						title,
+						priority
+						archivedAt
+						assignee {
+							id
+							displayName
+						}
+						state {
+							id
+							name
+						}
+						createdAt
+						creator {
+							id
+							displayName
+						}
+						description
+						dueDate
+						cycle {
+							id
+							name
+						}
+					}
+				}
+			}`;
+	},
+	deleteIssue() {
+		return `mutation IssueDelete ($issueId: String!) {
+					issueDelete(id: $issueId) {
+						success
+					}
+				}`;
+	},
+	getIssue() {
+		return `query Issue ($issueId: ID){
+			issues(filter: { 
+				id: { eq: $issueId }
+			}) {
+				nodes {
+					id,
+					title,
+					priority
+					archivedAt
+					assignee {
+						id
+						displayName
+					}
+					state {
+						id
+						name
+					}
+					createdAt
+					creator {
+						id
+						displayName
+					}
+					description
+					dueDate
+					cycle {
+						id
+						name
+					}
+				}
+			}
+		}`;
+	},
+	getIssues() {
+		return `query Issue ($first: Int){
+					issues (first: $first){
+						nodes {
+						id, 
+						title,
+						priority
+						archivedAt
+						assignee {
+							id
+							displayName
+						}
+						state {
+							id
+							name
+						}
+						createdAt
+						creator {
+							id
+							displayName
+						}
+						description
+						dueDate
+						cycle {
+							id
+							name
+						}
+					}
+				}
+			}`;
+	},
+	updateIssue() {
+		return `mutation IssueUpdate (
+		$issueId: String!,
+		$title: String,
+		$teamId: String,
+		$description: String,
+		$assigneeId: String,
+		$priorityId: Int,
+		$stateId: String){
+		issueUpdate(
+			id: $issueId,
+			input: {
+				title: $title
+				description: $description
+				teamId: $teamId
+				assigneeId: $assigneeId
+				priority: $priorityId
+				stateId: $stateId
+			}
+		) {
+			success
+				issue {
+					id,
+					title,
+					priority
+					archivedAt
+					assignee {
+						id
+						displayName
+					}
+					state {
+						id
+						name
+					}
+					createdAt
+					creator {
+						id
+						displayName
+					}
+					description
+					dueDate
+					cycle {
+						id
+						name
+					}
+				}
+			}
+		}`;
+	},
+};

packages/nodes-base/package.json

@@ -499,6 +499,7 @@
       "dist/nodes/Lemlist/Lemlist.node.js",
       "dist/nodes/Lemlist/LemlistTrigger.node.js",
       "dist/nodes/Line/Line.node.js",
+      "dist/nodes/Linear/Linear.node.js",
       "dist/nodes/Linear/LinearTrigger.node.js",
       "dist/nodes/LingvaNex/LingvaNex.node.js",
       "dist/nodes/LinkedIn/LinkedIn.node.js",