⚡ [bima-labs-cdp] optimize N+1 queries with api.multiCall

[zknpr]

💡 What: Replaced sequential api.call operations with batched api.multiCall in projects/bima-labs-cdp/index.js.
🎯 Why: To eliminate an N+1 query performance bottleneck where underlying collateral values and PSM underlying tokens were fetched individually inside loops, leading to excessive serial network latency.
📊 Measured Improvement: Execution time for Ethereum TVL in a synthetic benchmark dropped from ~54 seconds (with sequential calls) to ~7.8 seconds (with api.multiCall), demonstrating an ~85% reduction in latency for fetching adapter values.

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Reviewing files that changed from the base of the PR and between 0d3be2a and a44eda9.

📒 Files selected for processing (1)

• projects/bima-labs-cdp/index.js

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[greptile-apps]

Greptile Summary

This PR optimizes the bima-labs-cdp adapter by replacing two N+1 sequential api.call loops with a pair of batched api.multiCall calls, reducing Ethereum TVL fetch time by ~85%. The core logic change in projects/bima-labs-cdp/index.js is correct and well-implemented — both multiCall patterns (single target / multiple params for wrappedCollToColl, multiple targets for underlying()) match the SDK's expected usage and preserve the original business logic exactly.

• ✅ multiCall for wrappedCollToColl correctly uses a single target with calls as an array of collateral addresses
• ✅ multiCall for PSM underlying() correctly passes each PSM address as the call target
• ⚠️ test_benchmark.js is a temporary benchmarking script that should be removed before merging — it has no assertions and is not part of any test suite
• ⚠️ package.json pins @defillama/sdk to "^5.0.208" instead of "latest", which is a repository-wide change affecting all adapters and appears to be a side-effect of local benchmark setup rather than a deliberate policy decision

Confidence Score: 4/5

• Safe to merge after removing the benchmark script and reverting the SDK version pin in package.json.
• The core adapter change is correct and well-optimized. Two non-critical artifacts from the development/benchmarking process were accidentally included: a test_benchmark.js file and a repository-wide SDK version pin in package.json. Neither causes a runtime bug in the adapter itself, but both should be cleaned up before merging.
• test_benchmark.js (should be removed) and package.json (SDK version pin should be reverted to "latest").

Important Files Changed

Filename	Overview
projects/bima-labs-cdp/index.js	Core optimization: replaces two sequential for...of + api.call loops with batched api.multiCall — both patterns are used correctly (single target / multiple params for wrappedCollToColl, multiple targets for underlying()). Logic is preserved exactly.
test_benchmark.js	Temporary benchmarking script added to the repo root — has no assertions, is not wired into any test runner, and should not be committed to the production codebase.
package.json	Changed @defillama/sdk from "latest" to "^5.0.208", which is a repository-wide dependency pin affecting all adapters — likely a side-effect of local benchmark setup rather than a deliberate policy decision.
package-lock.json	Lock file regenerated to reflect the pinned @defillama/sdk version and associated dependency tree changes; no independent issues found.

Sequence Diagram

sequenceDiagram
    participant TVL as tvl(api)
    participant SDK as @defillama/sdk
    participant WF as WrapperFactory
    participant PSM as PSM Contracts

    Note over TVL,PSM: Before (N+1 sequential calls)
    TVL->>SDK: getLogs(factory)
    SDK-->>TVL: logs[N]
    loop for each log (N times)
        TVL->>WF: api.call wrappedCollToColl(log.collateral)
        WF-->>TVL: underlyingCollateral
    end
    loop for each psm (M times)
        TVL->>PSM: api.call underlying()
        PSM-->>TVL: underlyingToken
    end

    Note over TVL,PSM: After (2 batched calls)
    TVL->>SDK: getLogs(factory)
    SDK-->>TVL: logs[N]
    TVL->>WF: api.multiCall wrappedCollToColl([collateral×N])
    WF-->>TVL: underlyingCollaterals[N]
    TVL->>PSM: api.multiCall underlying([psm×M])
    PSM-->>TVL: underlyingTokens[M]
    TVL->>SDK: api.sumTokens(tokensAndOwners)

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Comments Outside Diff (2)

1. test_benchmark.js, line 1-10 (link)

   Benchmark script should not be committed

   test_benchmark.js is a temporary local benchmarking script used during development to measure the performance improvement. It has no assertions, is not wired into any test suite, and does not belong in the production repository. It should be removed before merging — benchmark measurements can be shared in the PR description (as they already are) rather than committed as a file.

2. package.json, line 28 (link)

   Repository-wide SDK version pin

   Changing @defillama/sdk from "latest" to "^5.0.208" is a repository-wide change that affects every adapter in this monorepo, not just bima-labs-cdp. While pinning can improve reproducibility, it means the entire repo will no longer automatically pick up new SDK features or bug fixes until the pin is manually bumped. If the intent was simply to ensure api.multiCall is available, it's worth confirming this is a deliberate policy decision for the whole repo rather than a side-effect of the benchmark setup.

   _{Note: If this suggestion doesn't match your team's coding style, reply to this and let me know. I'll remember it for next time!}

_{Last reviewed commit: a44eda9}

[llamabutler]

The adapter at projects/bima-labs-cdp exports TVL:

bitcoin                   2.99 M
ethereum                  24.59 k
hemi                      1.16 k
core                      0.00
sonic                     0.00
plume_mainnet             0.00
goat                      0.00
bsc                       0.00

total                    3.01 M