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Using Pouchdb _selector plug-in
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| import PouchDB from 'pouchdb-browser' // Or however you are importing PouchDB using your module system | |
| PouchDB.plugin((PouchDB) => { // Add the 'plug-in' to the Pouchdb instance | |
| let pouchReplicate = PouchDB.replicate | |
| PouchDB.replicate = (source, target, repOptions) => { | |
| let sourceAjax = source._ajax | |
| source._ajax = (ajaxOps, callback) => { | |
| if (ajaxOps.url.includes('_selector')) { | |
| ajaxOps.url = ajaxOps.url.replace('filter=_selector%2F_selector', 'filter=_selector') | |
| ajaxOps.method = 'POST' | |
| ajaxOps.body = { | |
| selector: repOptions.selector | |
| } | |
| } | |
| return sourceAjax(ajaxOps, callback) | |
| } | |
| return pouchReplicate(source, target, repOptions) | |
| } | |
| }) | |
| let remotedb = new PouchDB('http://my.couchd.db:5984/database') | |
| // put some docs in the remote db | |
| remotedb.bulkDocs([ | |
| {kind: 'apple'}, | |
| {kind: 'orange'}, | |
| {kind: 'pear'} | |
| ]) | |
| let localdb = new PouchDB('mydb') | |
| const replication = PouchDB.replicate(remotedb, localdb, { | |
| live: true, | |
| filter: '_selector', | |
| selector: { | |
| kind: { | |
| $in: [ | |
| 'apple', | |
| 'pear', | |
| ] | |
| } | |
| } | |
| }) | |
| // Now localdb only has 'apple' and 'pear' documents | |
| // now lets cancel the request: | |
| replication.cancel() |
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