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crul vs DataSpaceR

A side-by-side editorial comparison of crul and DataSpaceR — release velocity, themes, recent moves, and the top alternatives to consider.

crul vs DataSpaceR: at a glance

FeaturecrulDataSpaceR
SectorAnalyticsAnalytics
Velocity score0.02.5
Sparks · 30d00
Top themeshttp-client, async, mocking, ropenscihiv-research, immunology-data, api-client, antibody-sequences
Last editorial update1h ago6h ago
WebsiteVisit →Visit →

What is crul?

crul took mocking back from webmockr and made it a property of the client itself

crul is the R6-based HTTP client underneath much of rOpenSci's package stack, covering synchronous requests, three flavours of async, pagination and retries. Its 1.6.0 release in July 2025 changed where test mocking lives: each client — HttpClient, Async, AsyncVaried — now takes a mocking parameter at initialisation or per method, and the standalone mock() function is deprecated. Mocking used to be something webmockr switched on from outside; it is now a setting on the client.

Read the full crul trajectory →

What is DataSpaceR?

DataSpaceR's 1.0.0 rebuilt its query API and opened up HIV antibody sequence data.

The R client for the CAVD DataSpace reached 1.0.0 in July 2026 after five years of small fixes. The release removed the mAb grid filtering and view methods in favour of filtering an availableMabs object with data.table syntax, applied that pattern to every query method, and added a class for querying DAASH, the Database of Annotated Antibody Sequences for HIV-1. The August patch restored the LANL monoclonal-antibody metadata requests and batched BCR sequence queries.

Read the full DataSpaceR trajectory →

crul vs DataSpaceR: editorial side-by-side

C
crul
ANALYTICS
0.0

crul took mocking back from webmockr and made it a property of the client itself

◆ Current state

crul is the R6-based HTTP client underneath much of rOpenSci's package stack, covering synchronous requests, three flavours of async, pagination and retries. Its 1.6.0 release in July 2025 changed where test mocking lives: each client — HttpClient, Async, AsyncVaried — now takes a mocking parameter at initialisation or per method, and the standalone mock() function is deprecated. Mocking used to be something webmockr switched on from outside; it is now a setting on the client.

◆ Where it's heading

The async surface has been the growth area for years — retries reached Async, AsyncVaried, AsyncQueue and HttpRequest in 1.4, AsyncQueue gained the response accessors in 1.2, and 1.5.0 wired async requests up to webmockr. The 1.6.0 change reverses that direction of dependency, and it landed within a minute of webmockr's own release severing its tie to vcr. Read together, the rOpenSci HTTP stack is being deliberately untangled so each package can be used without the others.

◆ Prediction

With mock() deprecated rather than removed, the next major release is the likely point of deletion. Expect the remaining work to follow the same decoupling theme rather than adding request features.

D
DataSpaceR
ANALYTICS
2.5

DataSpaceR's 1.0.0 rebuilt its query API and opened up HIV antibody sequence data.

◆ Current state

The R client for the CAVD DataSpace reached 1.0.0 in July 2026 after five years of small fixes. The release removed the mAb grid filtering and view methods in favour of filtering an availableMabs object with data.table syntax, applied that pattern to every query method, and added a class for querying DAASH, the Database of Annotated Antibody Sequences for HIV-1. The August patch restored the LANL monoclonal-antibody metadata requests and batched BCR sequence queries.

◆ Where it's heading

The package is converging on one query idiom — build a filtered object, then fetch — instead of per-domain grid methods, and each class now accepts multiple studies or antibodies rather than one. The 1.0.1 patch suggests the rewrite dropped functionality that users noticed, and it was put back rather than redesigned.

◆ Prediction

With DAASH access in place and the query surface unified, the next work is most likely more sequence-domain coverage and follow-up fixes to the batched query paths introduced in 1.0.1.

Alternatives to crul and DataSpaceR

Other Analytics products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either crul or DataSpaceR.

See all crul alternatives → · See all DataSpaceR alternatives →

Recent activity from crul and DataSpaceR

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 9d agoDataSpaceRLANL metadata requests restored and BCR queries batched
  2. 1mo agoDataSpaceRQuery API rebuilt and DAASH antibody sequence access added
  3. 1y agocrulMocking becomes a client parameter, independent of webmockr
  4. 1y agoDataSpaceRFixes for antibody and donor queries
  5. 1y agoDataSpaceRLANL metadata added to neutralising-antibody pulls
  6. 2y agocrulAsync requests become mockable through webmockr
  7. 2y agocrulDocumentation fixes and test helper tweak
  8. 3y agocrulHTTP retries reach the async classes
  9. 3y agocrulClearer error for mismatched urls and disk lengths
  10. 4y agocrulAsyncQueue gains response accessors; results print as a summary
  11. 4y agoDataSpaceRSession fix for CDS reports and snake-case bindings

Frequently asked questions

What is the difference between crul and DataSpaceR?

They serve adjacent needs but don't currently overlap on shipped themes. DataSpaceR is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is crul better than DataSpaceR?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. DataSpaceR is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.

What are the best alternatives to crul?

Top crul alternatives in Analytics are ranked by recent ship velocity. Browse the "crul alternatives" section above for the current picks, or visit /alternatives/crul for the full list with editorial commentary on each.

What are the best alternatives to DataSpaceR?

Top DataSpaceR alternatives in Analytics are ranked by recent ship velocity. Browse the "DataSpaceR alternatives" section above for the current picks, or visit /alternatives/dataspacer for the full list with editorial commentary on each.