Pouchdb: db.fetch is not a function

[ohmoses]

Issue

Using the pouchdb-find plugin, when I call db.createIndex, I get the following error:

TypeError: db.fetch is not a function
    at dbFetch (/home/moses/dev/safecontracts/backend/accounts-app/node_modules/pouchdb-find/lib/index.js:46:6)
    at createIndex (/home/moses/dev/safecontracts/backend/accounts-app/node_modules/pouchdb-find/lib/index.js:63:3)
    at PouchDB.<anonymous> (/home/moses/dev/safecontracts/backend/accounts-app/node_modules/pouchdb-find/lib/index.js:1371:3)
    at /home/moses/dev/safecontracts/backend/accounts-app/node_modules/pouchdb-utils/lib/index.js:118:21
    at new Promise (<anonymous>)
    at PouchDB.<anonymous> (/home/moses/dev/safecontracts/backend/accounts-app/node_modules/pouchdb-utils/lib/index.js:105:19)
    at PouchDB.createIndex (/home/moses/dev/safecontracts/backend/accounts-app/node_modules/argsarray/index.js:14:18)
    […]

console.log(db.fetch) gives undefined.

Info

• Environment: Node.js
• Server: CouchDB 2.1
• Plugins used: find, upsert

[AntonPilyak]

Maybe, you have to initialize it properly? In my case, the following works:
import PouchDB from 'pouchdb';
import PouchDBFind from 'pouchdb-find';
PouchDB.plugin(PouchDBFind);

[ohmoses]

@AntonPilyak I require the packages because I'm in Node, but otherwise I do the same. Thanks though.

Reading the pouchdb-find code, I can't even tell how the fetch method is supposed to get attached to PouchDB, so it's really hard to debug.

[ohmoses]

Oops, I'm an idiot. I didn't notice the plugin was on different major version (v7.0) than Pouch itself (v6.4). Solved.

[BeatriceThalo]

For my own reference
package.json:

    "pouchdb": "^6.4.3",
    "pouchdb-find": "^6.4.3",
    // not @types/pouchdb
    // not @types/pouchdb-find

tsconfig.json:

"compilerOptions": {
    "typeRoots": [
        "./typings",

add 2 subfolders to the typings folder named pouchdb and pouchdb-find, each containing an index.d.ts file containing the line declare module 'pouchdb'; or declare module 'pouchdb-find';.

client side node:

import PouchDB from 'pouchdb'
import PouchFind from 'pouchdb-find'
myClientDb: any; // not PouchDB.Database
constructor(){PouchDB.plugin(PouchFind)}

server side node:

import PouchDB = require('pouchdb')
import PouchFind = require('pouchdb-find')
myServerDb: any; // not PouchDB.Database
constructor(){PouchDB.plugin(PouchFind)}