fix(runtime): surface code-defined datasources on the host-config boot path (ADR-0015 §18)#2157
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…t path (ADR-0015 §18)
A datasource declared in `defineStack({ datasources: [...] })` was absent from
`GET /api/v1/datasources` and `GET /api/v1/meta/datasource` under `os dev`/`serve`
for any config whose `plugins` are already instantiated (`isHostConfig` true), even
though the boot banner counted it and its federated objects were queryable.
Root cause is write-side, not read-side: on the host-config path no MetadataPlugin
loads, so the `metadata` service is the kernel's in-memory fallback, which
implemented register/list/get but not `registerInMemory`. AppPlugin gates
code-defined-datasource (and stack-RBAC) registration on
`typeof metadata.registerInMemory === 'function'`, so the registration was silently
skipped and both REST surfaces read empty. The read paths (metadata.list,
datasource-admin listDatasources, protocol.getMetaItems which merges metadata.list)
were already correct.
Add `registerInMemory` (synchronous, no persistence — identical to register for an
in-memory store) to both in-memory metadata fallbacks: @objectstack/core's
createMemoryMetadata and @objectstack/plugin-dev's dev stub. Also restores
stack-declared RBAC listing on this path. Adds a runtime regression test that boots
the host-config shape and asserts all three backing surfaces include the code
datasource.
Follow-up to #2111.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Jun 22, 2026
…le, credentials, visibility, query completeness) (#2162) Consolidates the runtime gaps surfaced while implementing ADR-0015 federation (#2138 read path, #2149 columnMap, #2139 example+verify, #2157 visibility) into a single forward decision: one DatasourceConnectionService that auto-connects declared datasources as queryable engine drivers (no onEnable bridge), backward- compatible opt-in gating (existing managed apps unchanged), credential resolution at connect, native-analytics remote-table awareness, and columnMap/field.columnName reconciliation. Status: Proposed; decisions D1-D8 with a phased rollout. Co-authored-by: Jack Zhuang <277994282+os-zhuang@users.noreply.github.com> Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
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Problem
A datasource declared in
defineStack({ datasources: [...] })(e.g.examples/app-showcase'sshowcase_external) was absent fromGET /api/v1/datasourcesandGET /api/v1/meta/datasourceunderos dev/serve— even though the boot banner counted it ("1 Datasources") and its federated objects were queryable. Affects any code-defined datasource (app-crm too). Follow-up to #2111 / ADR-0015 §18.Root cause (write-side, not read-side)
The read paths were already correct:
protocol.getMetaItems({type:'datasource'})mergesmetadataService.list(type), and datasource-admin'slistDatasourceRecordsreadsmetadata.list('datasource').The showcase config has instantiated plugins, so
isHostConfigis true →shouldBootWithLibraryis false → it boots via the lightweight assembler, notcreateStandaloneStack/MetadataPlugin. On that host-config path themetadataservice is the kernel's in-memory fallback (createMemoryMetadata), which implementedregister/list/getbut notregisterInMemory.AppPlugingates code-defined-datasource (and stack-RBAC) registration ontypeof metadata.registerInMemory === 'function', so the registration was silently skipped and both REST surfaces read empty. The standalone path (NodeMetadataManager, which hasregisterInMemory) was unaffected.Fix
Add
registerInMemory(synchronous, no persistence — identical toregisterfor an in-memory store, matchingMetadataManager's signature) to both in-memory metadata fallbacks:packages/core/src/fallbacks/memory-metadata.tspackages/plugins/plugin-dev/src/dev-plugin.ts(same latent gap)This also restores stack-declared RBAC (
roles/permissions/sharingRules/policies) listing on this path, since AppPlugin registers those through the same guard.Test / verification
packages/runtime/src/datasource-visibility.test.tsboots the host-config shape (no MetadataPlugin → kernel injects the fallback) and assertsmetadata.list,datasource-admin.listDatasources()(backs/api/v1/datasources), andprotocol.getMetaItems(backs/api/v1/meta/datasource) all include the code datasource withorigin:'code'. Verified RED before → GREEN after.200withshowcase_external(origin:"code").Changeset:
@objectstack/core: patch(fixed group).🤖 Generated with Claude Code