Internal models
This page describes the internal models used by DipDup. You shouldn't modify data in these models directly.
| model | table | description |
|---|---|---|
Model | N/A | Base class for all models in DipDup project. Provides advanced transaction management. |
Schema | dipdup_schema | Hash of database schema to detect changes that require reindexing. |
Head | dipdup_head | The latest block received by a datasource from a WebSocket connection. |
Index | dipdup_index | Indexing status, level of the latest processed block, template, and template values if applicable. |
Contract | dipdup_contract | Nothing useful for us humans. It helps DipDup to keep track of dynamically spawned contracts. |
ModelUpdate | dipdup_model_update | Service table to store model diffs for database rollback. |
ContractMetadata | dipdup_contract_metadata | See 3.12. Metadata interface |
TokenMetadata | dipdup_token_metadata | See 3.12. Metadata interface |
With the help of these tables, you can set up monitoring of DipDup deployment to know when something goes wrong:
-- This query will return time since the latest block was received by a datasource.
SELECT NOW() - timestamp FROM dipdup_head;