couchdb-nano | 易学教程

Sorting CouchDB result by value

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问题 I'm brand new to CouchDB (and NoSQL in general), and am creating a simple Node.js + express + nano app to get a feel for it. It's a simple collection of books with two fields, 'title' and 'author'. Example document: { "_id": "1223e03eade70ae11c9a3a20790001a9", "_rev": "2-2e54b7aa874059a9180ac357c2c78e99", "title": "The Art of War", "author": "Sun Tzu" } Reduce function: function(doc) { if (doc.title && doc.author) { emit(doc.title, doc.author); } } Since CouchDB sorts by key and supports a

couchdb , use middleware or not ? wich for simple restful api, with express4 nodejs

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问题 I dont find a lot of examples about couchdb with nodejs and express4. I've seen there are on npm: - https://www.npmjs.com/package/node-couchdb - https://www.npmjs.com/package/nano they are compatible with couchdb 2? or there is a way to work without middleware? in this case it's better to work without middleware to understand better how works couchdb? i'd like to read some examples about that. 回答1: Well, the documentation of PouchDB is absolutely awesome. You have a bigger community(in my

How to import nano (couchdb) - typescript

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问题 I have trouble importing and using nano in my node application. The js way (from the doc) is : var nano = require('nano')('http://localhost:5984'); How do I do that with typescript ? I tried import * as Nano from "nano"; let nano = new Nano('http://localhost:5984'); But then I get : Nano is not an object. 回答1: By installing @types/nano we can look at : node_modules/@types/nano/index.d.ts where we see the lines : declare function nano(config: nano.Configuration | string): nano.ServerScope |

“Only reserved document ids may start with underscore." when trying to use _find

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问题 I'm working with CouchDB and am trying to search a db using _find. I am currently running into the following error: error: 'illegal_docid', reason: 'Only reserved document ids may start with underscore.', scope: 'couch', statusCode: 400, request: { method: 'POST', headers: { 'content-type': 'application/json', accept: 'application/json', Host: 'example.com', Referer: 'https://example.com' }, uri: 'http://XXXXXX:XXXXXX@206.189.178.130:5984/gc_common/_find', body: '{"selector":{"_id":"taglist"}

Updating a CouchDB document in nano [closed]

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问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 7 years ago . I need to get a document, change/insert/delete some fields and put it back. The "put" action requires the current revision of the document, but in nano I cannot find any function which takes a revision as a

Updating a CouchDB document in nano [closed]

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I need to get a document, change/insert/delete some fields and put it back. The "put" action requires the current revision of the document, but in nano I cannot find any function which takes a revision as a parameter and inserts the document back into the database. How can I do this with nano? Note: This is the general algorithm, it is not specific to any library since nano's insert() method doesn't offer anything automated for updating documents. Get the document, save the current revision, apply your changes and try to send the document with the saved revision number. Make sure to handle