import { IExecuteFunctions } from 'n8n-core'; import { IDataObject, ILoadOptionsFunctions, INodeExecutionData, INodePropertyOptions, INodeType, INodeTypeDescription, } from 'n8n-workflow'; import { discourseApiRequest } from './GenericFunctions'; import { postFields, postOperations } from './PostDescription'; import { categoryFields, categoryOperations } from './CategoryDescription'; import { groupFields, groupOperations } from './GroupDescription'; import { userFields, userOperations } from './UserDescription'; import { userGroupFields, userGroupOperations } from './UserGroupDescription'; export class Discourse implements INodeType { description: INodeTypeDescription = { displayName: 'Discourse', name: 'discourse', icon: 'file:discourse.svg', group: ['input'], version: 1, subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}', description: 'Consume Discourse API', defaults: { name: 'Discourse', }, inputs: ['main'], outputs: ['main'], credentials: [ { name: 'discourseApi', required: true, }, ], properties: [ { displayName: 'Resource', name: 'resource', type: 'options', noDataExpression: true, options: [ { name: 'Category', value: 'category', }, { name: 'Group', value: 'group', }, { name: 'Post', value: 'post', }, // { // name: 'Search', // value: 'search', // }, { name: 'User', value: 'user', }, { name: 'User Group', value: 'userGroup', }, ], default: 'post', }, ...categoryOperations, ...categoryFields, ...groupOperations, ...groupFields, ...postOperations, ...postFields, // ...searchOperations, // ...searchFields, ...userOperations, ...userFields, ...userGroupOperations, ...userGroupFields, ], }; methods = { loadOptions: { // Get all the calendars to display them to user so that he can // select them easily async getCategories(this: ILoadOptionsFunctions): Promise { const returnData: INodePropertyOptions[] = []; const { category_list } = await discourseApiRequest.call(this, 'GET', `/categories.json`); for (const category of category_list.categories) { returnData.push({ name: category.name, value: category.id, }); } return returnData; }, }, }; async execute(this: IExecuteFunctions): Promise { const items = this.getInputData(); const returnData: INodeExecutionData[] = []; const length = items.length; const qs: IDataObject = {}; let responseData; 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 === 'category') { //https://docs.discourse.org/#tag/Categories/paths/~1categories.json/post if (operation === 'create') { const name = this.getNodeParameter('name', i) as string; const color = this.getNodeParameter('color', i) as string; const textColor = this.getNodeParameter('textColor', i) as string; const body: IDataObject = { name, color, text_color: textColor, }; responseData = await discourseApiRequest.call(this, 'POST', `/categories.json`, body); responseData = responseData.category; } //https://docs.discourse.org/#tag/Categories/paths/~1categories.json/get if (operation === 'getAll') { const returnAll = this.getNodeParameter('returnAll', i); responseData = await discourseApiRequest.call(this, 'GET', `/categories.json`, {}, qs); responseData = responseData.category_list.categories; if (returnAll === false) { const limit = this.getNodeParameter('limit', i); responseData = responseData.splice(0, limit); } } //https://docs.discourse.org/#tag/Categories/paths/~1categories~1{id}/put if (operation === 'update') { const categoryId = this.getNodeParameter('categoryId', i) as string; const name = this.getNodeParameter('name', i) as string; const updateFields = this.getNodeParameter('updateFields', i); const body: IDataObject = { name, }; Object.assign(body, updateFields); responseData = await discourseApiRequest.call( this, 'PUT', `/categories/${categoryId}.json`, body, ); responseData = responseData.category; } } if (resource === 'group') { //https://docs.discourse.org/#tag/Posts/paths/~1posts.json/post if (operation === 'create') { const name = this.getNodeParameter('name', i) as string; const body: IDataObject = { name, }; responseData = await discourseApiRequest.call(this, 'POST', `/admin/groups.json`, { group: body, }); responseData = responseData.basic_group; } //https://docs.discourse.org/#tag/Groups/paths/~1groups~1{name}.json/get if (operation === 'get') { const name = this.getNodeParameter('name', i) as string; responseData = await discourseApiRequest.call(this, 'GET', `/groups/${name}`, {}, qs); responseData = responseData.group; } //https://docs.discourse.org/#tag/Groups/paths/~1groups.json/get if (operation === 'getAll') { const returnAll = this.getNodeParameter('returnAll', i); responseData = await discourseApiRequest.call(this, 'GET', `/groups.json`, {}, qs); responseData = responseData.groups; if (returnAll === false) { const limit = this.getNodeParameter('limit', i); responseData = responseData.splice(0, limit); } } //https://docs.discourse.org/#tag/Posts/paths/~1posts~1{id}.json/put if (operation === 'update') { const groupId = this.getNodeParameter('groupId', i) as string; const name = this.getNodeParameter('name', i) as string; const body: IDataObject = { name, }; responseData = await discourseApiRequest.call(this, 'PUT', `/groups/${groupId}.json`, { group: body, }); } } if (resource === 'post') { //https://docs.discourse.org/#tag/Posts/paths/~1posts.json/post if (operation === 'create') { const content = this.getNodeParameter('content', i) as string; const title = this.getNodeParameter('title', i) as string; const additionalFields = this.getNodeParameter('additionalFields', i); const body: IDataObject = { title, raw: content, }; Object.assign(body, additionalFields); responseData = await discourseApiRequest.call(this, 'POST', `/posts.json`, body); } //https://docs.discourse.org/#tag/Posts/paths/~1posts~1{id}.json/get if (operation === 'get') { const postId = this.getNodeParameter('postId', i) as string; responseData = await discourseApiRequest.call(this, 'GET', `/posts/${postId}`, {}, qs); } //https://docs.discourse.org/#tag/Posts/paths/~1posts.json/get if (operation === 'getAll') { const returnAll = this.getNodeParameter('returnAll', i); const limit = this.getNodeParameter('limit', i, 0); responseData = await discourseApiRequest.call(this, 'GET', `/posts.json`, {}, qs); responseData = responseData.latest_posts; //Getting all posts relying on https://github.com/discourse/discourse_api/blob/main/spec/discourse_api/api/posts_spec.rb let lastPost = responseData.pop(); let previousLastPostID; while (lastPost.id !== previousLastPostID) { if (limit && responseData.length > limit) { break; } const chunk = await discourseApiRequest.call( this, 'GET', `/posts.json?before=${lastPost.id}`, {}, qs, ); responseData = responseData.concat(chunk.latest_posts); previousLastPostID = lastPost.id; lastPost = responseData.pop(); } responseData.push(lastPost); if (returnAll === false) { responseData = responseData.splice(0, limit); } } //https://docs.discourse.org/#tag/Posts/paths/~1posts~1{id}.json/put if (operation === 'update') { const postId = this.getNodeParameter('postId', i) as string; const content = this.getNodeParameter('content', i) as string; const updateFields = this.getNodeParameter('updateFields', i); const body: IDataObject = { raw: content, }; Object.assign(body, updateFields); responseData = await discourseApiRequest.call( this, 'PUT', `/posts/${postId}.json`, body, ); responseData = responseData.post; } } // TODO figure how to paginate the results // if (resource === 'search') { // //https://docs.discourse.org/#tag/Search/paths/~1search~1query/get // if (operation === 'query') { // qs.term = this.getNodeParameter('term', i) as string; // const simple = this.getNodeParameter('simple', i) as boolean; // const updateFields = this.getNodeParameter('updateFields', i); // Object.assign(qs, updateFields); // qs.page = 1; // responseData = await discourseApiRequest.call( // this, // 'GET', // `/search/query`, // {}, // qs, // ); // if (simple === true) { // const response = []; // for (const key of Object.keys(responseData)) { // for (const data of responseData[key]) { // response.push(Object.assign(data, { __type: key })); // } // } // responseData = response; // } // } // } if (resource === 'user') { //https://docs.discourse.org/#tag/Users/paths/~1users/post if (operation === 'create') { const name = this.getNodeParameter('name', i) as string; const email = this.getNodeParameter('email', i) as string; const password = this.getNodeParameter('password', i) as string; const username = this.getNodeParameter('username', i) as string; const additionalFields = this.getNodeParameter('additionalFields', i); const body: IDataObject = { name, password, email, username, }; Object.assign(body, additionalFields); responseData = await discourseApiRequest.call(this, 'POST', `/users.json`, body); } //https://docs.discourse.org/#tag/Users/paths/~1users~1{username}.json/get if (operation === 'get') { const by = this.getNodeParameter('by', i) as string; let endpoint = ''; if (by === 'username') { const username = this.getNodeParameter('username', i) as string; endpoint = `/users/${username}`; } else if (by === 'externalId') { const externalId = this.getNodeParameter('externalId', i) as string; endpoint = `/u/by-external/${externalId}.json`; } responseData = await discourseApiRequest.call(this, 'GET', endpoint); } //https://docs.discourse.org/#tag/Users/paths/~1admin~1users~1{id}.json/delete if (operation === 'getAll') { const returnAll = this.getNodeParameter('returnAll', i); const flag = this.getNodeParameter('flag', i) as boolean; responseData = await discourseApiRequest.call( this, 'GET', `/admin/users/list/${flag}.json`, {}, qs, ); if (returnAll === false) { const limit = this.getNodeParameter('limit', i); responseData = responseData.splice(0, limit); } } } if (resource === 'userGroup') { //https://docs.discourse.org/#tag/Groups/paths/~1groups~1{group_id}~1members.json/put if (operation === 'add') { const usernames = this.getNodeParameter('usernames', i) as string; const groupId = this.getNodeParameter('groupId', i) as string; const body: IDataObject = { usernames, }; responseData = await discourseApiRequest.call( this, 'PUT', `/groups/${groupId}/members.json`, body, ); } //https://docs.discourse.org/#tag/Groups/paths/~1groups~1{group_id}~1members.json/delete if (operation === 'remove') { const usernames = this.getNodeParameter('usernames', i) as string; const groupId = this.getNodeParameter('groupId', i) as string; const body: IDataObject = { usernames, }; responseData = await discourseApiRequest.call( this, 'DELETE', `/groups/${groupId}/members.json`, body, ); } } const executionData = this.helpers.constructExecutionMetaData( this.helpers.returnJsonArray(responseData), { itemData: { item: i } }, ); returnData.push(...executionData); } catch (error) { if (this.continueOnFail()) { const executionErrorData = this.helpers.constructExecutionMetaData( this.helpers.returnJsonArray({ error: error.message }), { itemData: { item: i } }, ); returnData.push(...executionErrorData); continue; } throw error; } } return this.prepareOutputData(returnData); } }