| /** |
| * Query with Cloudant search: |
| * https://docs.cloudant.com/search.html#queries |
| **/ |
| |
| function main(message) { |
| var cloudantOrError = getCloudantAccount(message); |
| if (typeof cloudantOrError !== 'object') { |
| return Promise.reject(cloudantOrError); |
| } |
| var cloudant = cloudantOrError; |
| var dbName = message.dbname; |
| var docId = message.docid; |
| var indexName = message.indexname; |
| var search = message.search; |
| |
| if(!dbName) { |
| return Promise.reject('dbname is required.'); |
| } |
| if(!docId) { |
| return Promise.reject('docid is required.'); |
| } |
| if(!indexName) { |
| return Promise.reject('indexname is required.'); |
| } |
| if(!search) { |
| return Promise.reject('search query is required.'); |
| } |
| var cloudantDb = cloudant.use(dbName); |
| |
| //Search should be in the form of {"q":"index:my query"} |
| if (typeof message.search === 'object') { |
| search = message.search; |
| } else if (typeof message.search === 'string') { |
| try { |
| search = JSON.parse(message.search); |
| } catch (e) { |
| return Promise.reject('search field cannot be parsed. Ensure it is valid JSON.'); |
| } |
| } else { |
| return Promise.reject('search field is ' + (typeof search) + ' and should be an object or a JSON string.'); |
| } |
| |
| return querySearch(cloudantDb, docId, indexName, search); |
| } |
| |
| function querySearch(cloudantDb, designDocId, designViewName, search) { |
| return new Promise(function(resolve, reject) { |
| cloudantDb.search(designDocId, designViewName, search, function(error, response) { |
| if (!error) { |
| console.log('success', response); |
| resolve(response); |
| } else { |
| console.log('error', error); |
| reject(error); |
| } |
| }); |
| }); |
| } |
| |
| function getCloudantAccount(message) { |
| // full cloudant URL - Cloudant NPM package has issues creating valid URLs |
| // when the username contains dashes (common in Bluemix scenarios) |
| var cloudantUrl; |
| |
| if (message.url) { |
| // use bluemix binding |
| cloudantUrl = message.url; |
| } else { |
| if (!message.host) { |
| return 'cloudant account host is required.'; |
| } |
| if (!message.username) { |
| return 'cloudant account username is required.'; |
| } |
| if (!message.password) { |
| return 'cloudant account password is required.'; |
| } |
| |
| cloudantUrl = "https://" + message.username + ":" + message.password + "@" + message.host; |
| } |
| |
| return require('cloudant')({ |
| url: cloudantUrl |
| }); |
| } |