Bigmap Update Table

GET /tables/bigmap_updates?args

Lists historic bigmap updates. Use this table to bulk-fetch large quantities of bigmap updates, e.g. to replay or reconstruct bigmap state. A different way to access updates is by using the explorer API endpoints.

Schema

Field	Description
row_id uint64	Unique row identifier.
bigmap_id int64	Unique on-chain id of the bigmap.
key_id uint64	Short hash of the bigmap key.
key_hash string	Tezos script expression hash of the key.
key string	Hex string with Micheline encoded data for the key.
value string	Hex string with Micheline encoded data for the value.
action enum	Update action, one of update, remove, alloc, copy.
height int64	Block height at which the update happened.
time timestamp	Time of the update.
op_id uint64	Unique row id of the operation that contained the update.
op_hash hash	Hash of the operation that contained the update.

Response

[
    [
        12520900,              // row_id
        515,                   // bigmap_id
        14880518129034867591,  // key_id
        "update",              // action
        63514493,              // op_id
        1585371,               // height
        1628006826000,         // time
        "07070a0000001601b39686f116bb35115559f7e781200850e02854c4000000", // key
        "008d96adb1af01",      // value
        "onw1dT9DssyqPN6fGXq99qG5nd5zK1MXuHZPHm5GTrjQy6aERt1",   // op_hash
        "exprvLWAQodM4mjNkpX3WzgbUi8KKhL8qPDchFuwNQBdPbt6CTQQjf" // key_hash
    ]
]

Example

curl "https://api.tzpro.io/tables/bigmap_updates?bigmap_id=515&limit=1&order=desc"

import (
  "context"
  "blockwatch.cc/tzpro-go/tzpro"
)

// create a new query object
q := tzpro.DefaultClient.NewBigmapUpdateQuery()

// need typs for decoding
info, err := tzpro.DefaultClient.Contract.GetBigmap(
    context.Background(),
    511,
    tzpro.WithPrim(),
)
keyType := info.MakeKeyType()
valType := info.MakeValueType()

// add filters and configure the query to list all updates (update/removal actions)
q.WithFilter(tzpro.FilterModeEqual, "bigmap_id", 511).
    WithLimit(1).
    WithDesc()

// execute the query
list, err := q.Run(context.Background())

// walk bigmap updates
for _, row := range list.Rows {
    // access BigmapRow structs (use TzGo Type/Value to decode binary data)
    key := row.GetKey(keyType)
    val := row.GetValue(valType)

}