Playing with CouchDB revisions

1_revs_diff.sh

~ ❯ curl 'http://localhost:5984/aaa/bbb?revs_info=true'
{"_id":"bbb","_rev":"4-753875d51501a6b1883a9d62b4d33f91","foo":4,"_revs_info":[{"rev":"4-753875d51501a6b1883a9d62b4d33f91","status":"available"},{"rev":"3-efc54218773c6acd910e2e97fea2a608","status":"available"},{"rev":"2-2ee767305024673cfb3f5af037cd2729","status":"available"},{"rev":"1-4a7e4ae49c4366eaed8edeaea8f784ad","status":"available"}]}

~ ❯ curl -X POST 'http://localhost:5984/aaa/_revs_diff' -H 'Accept: application/json' -H 'Content-Type: application/json' -d '{"bbb": ["1-4a7e4ae49c4366eaed8edeaea8f784ad", "2-2ee767305024673cfb3f5af037cd2729"]}'
{}
~ ❯ curl -X POST 'http://localhost:5984/aaa/_revs_diff' -H 'Accept: application/json' -H 'Content-Type: application/json' -d '{"bbb": ["1-4a7e4ae49c4366eaed8edeaea8f784ad", "3-efc54218773c6acd910e2e97fea2a608", "4-ccc", "5-ddd"]}'         
{"bbb":{"missing":["4-ccc","5-ddd"],"possible_ancestors":["4-753875d51501a6b1883a9d62b4d33f91"]}}
~ ❯ curl -X POST 'http://localhost:5984/aaa/_revs_diff' -H 'Accept: application/json' -H 'Content-Type: application/json' -d '{"bbb": ["1-4a7e4ae49c4366eaed8edeaea8f784ad", "3-efc54218773c6acd910e2e97fea2a608", "5-ddd", "6-eee"]}'
{"bbb":{"missing":["5-ddd","6-eee"],"possible_ancestors":["4-753875d51501a6b1883a9d62b4d33f91"]}}

2_bulk_docs.sh

~ ❯ curl -X POST 'http://localhost:5984/aaa/_bulk_docs' -H 'Accept: application/json' -H 'Content-Type: application/json' -d '{"new_edits": false, "docs": [{ "_id": "bbb", "foo": 6, "_rev": "6-eee", "_revisions": {"start": 6, "ids": ["eee", "ddd", "753875d51501a6b1883a9d62b4d33f91", "efc54218773c6acd910e2e97fea2a608", "2ee767305024673cfb3f5af037cd2729", "4a7e4ae49c4366eaed8edeaea8f784ad"] } }]}' 
[]

3_pouch_replication.js

var PouchDB = require('pouchdb');
var db = new PouchDB('aaa');
PouchDB.replicate('http://localhost:5984/aaa', db)
db.put({ _id: "bbb", foo: 7, _rev: '6-eee' }).then(console.log)
# { ok: true, id: 'bbb', rev: '7-78deda4625a54381abde41b01ac52f29' }
db.put({ _id: "bbb", foo: 8, _rev: '7-78deda4625a54381abde41b01ac52f29' })
PouchDB.replicate(db, 'http://localhost:5984/aaa')

4_result.sh

~/tmp/pouch ❯ curl -s "http://localhost:5984/aaa/bbb?meta=true" | jq .
{
  "_id": "bbb",
  "_rev": "8-c6027a48b9ca47af8f05c38d586729bc",
  "foo": 8,
  "_revs_info": [
    {
      "rev": "8-c6027a48b9ca47af8f05c38d586729bc",
      "status": "available"
    },
    {
      "rev": "7-78deda4625a54381abde41b01ac52f29",
      "status": "missing"
    },
    {
      "rev": "6-eee",
      "status": "available"
    },
    {
      "rev": "5-ddd",
      "status": "missing"
    },
    {
      "rev": "4-753875d51501a6b1883a9d62b4d33f91",
      "status": "available"
    },
    {
      "rev": "3-efc54218773c6acd910e2e97fea2a608",
      "status": "available"
    },
    {
      "rev": "2-2ee767305024673cfb3f5af037cd2729",
      "status": "available"
    },
    {
      "rev": "1-4a7e4ae49c4366eaed8edeaea8f784ad",
      "status": "available"
    }
  ]
}

5_possible_ancestors.sh

~/tmp/pouch ❯ curl -X POST 'http://localhost:5984/aaa/_revs_diff' -H 'Accept: application/json' -H 'Content-Type: application/json' -d '{"bbb": ["9-fff"]}'    
{"bbb":{"missing":["9-fff"],"possible_ancestors":["8-c6027a48b9ca47af8f05c38d586729bc"]}}
~/tmp/pouch ❯ curl -X POST 'http://localhost:5984/aaa/_bulk_docs' -H 'Accept: application/json' -H 'Content-Type: application/json' -d '{"new_edits": false, "docs": [{ "_id": "bbb", "foo": 9, "_rev": "9-fff", "_revisions": {"start": 9, "ids": ["fff", "c6027a48b9ca47af8f05c38d586729bc"] } }]}'
[]
~/tmp/pouch ❯ curl -s "http://localhost:5984/aaa/bbb?meta=true" | jq .
{                                                                     
  "_id": "bbb",
  "_rev": "9-fff",
  "foo": 9,
  "_revs_info": [
    {
      "rev": "9-fff",
      "status": "available"
    },
    {
      "rev": "8-c6027a48b9ca47af8f05c38d586729bc",
      "status": "available"
    },
    {
      "rev": "7-78deda4625a54381abde41b01ac52f29",
      "status": "missing"
    },
    {
      "rev": "6-eee",
      "status": "available"
    },
    {
      "rev": "5-ddd",
      "status": "missing"
    },
    {
      "rev": "4-753875d51501a6b1883a9d62b4d33f91",
      "status": "available"
    },
    {
      "rev": "3-efc54218773c6acd910e2e97fea2a608",
      "status": "available"
    },
    {
      "rev": "2-2ee767305024673cfb3f5af037cd2729",
      "status": "available"
    },
    {
      "rev": "1-4a7e4ae49c4366eaed8edeaea8f784ad",
      "status": "available"
    }
  ]
}