Solana Indexer DBC pool improvements#485
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rickyrombo
commented
Oct 18, 2025
rickyrombo
commented
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- Clamp graduation progress at 1.0
- Remove DBC pool from create coin endpoint
- Track DBC pool using memcmp filters and artist coin base mints
- Track DBC VolatilityTracker (for completeness) and Metrics (for fees)
raymondjacobson
approved these changes
Oct 18, 2025
| pool TEXT PRIMARY KEY, | ||
| slot BIGINT NOT NULL, | ||
| last_update_timestamp BIGINT NOT NULL, | ||
| volatility_accumulator NUMERIC NOT NULL, |
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we don't use dynamic fees, but i guess we can track this
| Filter: &pb.SubscribeRequestFilterAccountsFilter_Memcmp{ | ||
| Memcmp: &pb.SubscribeRequestFilterAccountsFilterMemcmp{ | ||
| // Base mint is after discriminator, VolatilityTracker, config and creator | ||
| Offset: 8 + (8 + 8 + 16 + 16 + 16) + 32 + 32, |
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here's an interesting gpt suggestion to avoid magic
package dbc
import (
"bytes"
bin "github.com/gagliardetto/binary"
"github.com/gagliardetto/solana-go"
"api.audius.co/solana/spl/programs/meteora_dbc"
)
// Mirror exactly the fields that appear BEFORE BaseMint in the on-chain Pool layout.
// IMPORTANT: order and types must match the Borsh schema used on-chain!
type poolPrefixBeforeBaseMint struct {
VolatilityTracker meteora_dbc.VolatilityTracker
Config solana.PublicKey
Creator solana.PublicKey
}
func borshSize[T any](v T) int {
var buf bytes.Buffer
enc := bin.NewBorshEncoder(&buf)
_ = enc.Encode(v) // layout is known; errors here would mean schema mismatch
return buf.Len()
}
var OffsetBaseMintInPool int
func init() {
const anchorDiscriminatorSize = 8
OffsetBaseMintInPool = anchorDiscriminatorSize + borshSize(poolPrefixBeforeBaseMint{})
}
| @@ -76,7 +75,6 @@ func (app *ApiServer) v1CreateCoin(c *fiber.Ctx) error { | |||
| "name": body.Name, | |||
| "logo_uri": body.LogoUri, | |||
| "description": body.Description, | |||
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ill open a PR to remove FE
| return err | ||
| } | ||
|
|
||
| func upsertDbcPoolVolatilityTracker( |
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also not necessary, but doesn't hurt
raymondjacobson
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Oct 20, 2025
### Description Follows AudiusProject/api#485 Also add environment to sdk verifyuser script ### How Has This Been Tested? _Please describe the tests that you ran to verify your changes. Provide repro instructions & any configuration._ gen:dev types pass
raymondjacobson
added a commit
to AudiusProject/apps
that referenced
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Oct 20, 2025
### Description Follows AudiusProject/api#485 Also add environment to sdk verifyuser script ### How Has This Been Tested? _Please describe the tests that you ran to verify your changes. Provide repro instructions & any configuration._ gen:dev types pass
raymondjacobson
added a commit
to AudiusProject/apps
that referenced
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Oct 20, 2025
### Description Follows AudiusProject/api#485 Also add environment to sdk verifyuser script ### How Has This Been Tested? _Please describe the tests that you ran to verify your changes. Provide repro instructions & any configuration._ gen:dev types pass
raymondjacobson
added a commit
to AudiusProject/apps
that referenced
this pull request
Oct 20, 2025
### Description Follows AudiusProject/api#485 Also add environment to sdk verifyuser script ### How Has This Been Tested? _Please describe the tests that you ran to verify your changes. Provide repro instructions & any configuration._ gen:dev types pass
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