Design at autocomplete/autocomplete.md
Rewrites the query editor's autocomplete across every surface that has
one, and
follows the field-value path far enough to fix the bugs it was hiding.
53
commits, in six phases; each phase was written test-first, reviewed
adversarially, and checked in a browser before the next one started.
## What was wrong
The completion providers were wired inconsistently. Six surfaces bound a
resolver that was never defined, so their value completion could not
resolve at
all — SLO, dashboards and anomaly detection among them. Traces never
bound
`:suggestions`. Alerts never called `updateStreamKeywords`. PromQL ran a
second
editor runtime purely for its grammar, and asked
`/prometheus/api/v1/series`
— the heaviest endpoint available — for data the stream schema already
has.
## Phases
**1 — icons, staleness, quoting.** Correct `CompletionItemKind` glyphs,
stream
keywords refreshed when the stream changes, `spath` quoting.
**2 — the function catalog.** Custom functions get one tab stop per
argument,
org VRL functions stop appearing twice, column types read from
`dataType` as
well as `type`.
**3 — signature help, hover, async completion.** Providers return real
`CompletionList`s with `incomplete: true`, so a list that arrives late
is
re-queried rather than pinned.
**4 — numeric ranking.** Numeric columns sort first inside a numeric
aggregate.
**5 — values for streams nobody has searched.** The value cache only
ever held
what a search had already returned, so a stream you had not queried
offered
nothing. Values are now fetched on demand, bounded (10s timeout, 60s
cooldown,
one in-flight request per key), and shared between the editor and the
builder.
PromQL joins the same path: labels from the stream schema, values from
the
shared cache. `/series` now has zero production callers.
**6 — one way to fetch a value.** Item 22 only, in this PR.
## The dashboard filter 400
Clicking the ✕ beside "Select Field" in a filter's dropdown sets the
column to
`{}`, and the watcher on `condition.column` then asks for that column's
values.
`loadFilterItem` built `fields: [row.field]` out of `undefined`,
JSON.stringify
turned that into `null`, and the server answered
```
400 {"code":400,"message":"SerdeJsonError# invalid type: null, expected a string"}
```
`_values_stream` answers 400, not an empty result, for each way a piece
of the
payload can go missing — and every one is reachable: an unresolved
stream alias
(`.find(…)?.stream`), a stream not yet chosen (`""`), a range not yet
set. The
range fails differently: `meta.dateTime` starts as `{start_time: ""}`
and
`""?.toISOString()` does not short-circuit, so it throws and both
callers
surface "Something went wrong!" for a lookup the user never asked to
fail.
Guarded at the two callers, where the payload is built and where the
throw
happens. Not at `fetchFieldValues` — a guard there is too late to stop
the
throw and would duplicate validation the callers need anyway. The
trigger is
left alone: re-picking a field must still load its values.
## Notable removals
CodeMirror is gone — it was still bundled for the PromQL grammar alone.
Bundle 26.3 MB → 25.43 MB; the PromQL chunks 442.7 KB → 20.6 KB. The
PromQL
term catalog went from 7 entries to 113, generated from Prometheus's own
tables
and vendored with its MIT notice.
## Verification
- 76 files, +10.5k/−1.4k, ~9,100 tests passing across the touched areas.
- `vue-tsc` clean, `npm run build` exit 0.
- Every phase checked in a running browser against a live instance,
including
the 400 above: the ✕ now produces no request and no toast, adding a
filter and
re-picking a field each still fetch once, and the value list still
populates.
## Known, deliberately out of scope
- A filter still fetches twice (once on add, once on open) — that is
item 23,
the cache read, not this PR.
- `useMetricsExplorer.loadFilterItem` has the same unguarded
`toISOString()`
pattern on a different surface.
- `services/metrics.ts` and `services/search.ts` still carry dead
`get_promql_series` wrappers now that nothing calls `/series`.
|
||
|---|---|---|
| .. | ||
| cypress/e2e | ||
| public | ||
| scripts | ||
| src | ||
| test-results | ||
| tests/unit | ||
| .gitignore | ||
| .nvmrc | ||
| .prettierignore | ||
| .prettierrc.json | ||
| .stylelintrc.json | ||
| AGENTS.md | ||
| README.md | ||
| coverage.sh | ||
| cypress.config.ts | ||
| env.d.ts | ||
| eslint.config.js | ||
| eslint.sh | ||
| index.html | ||
| package-lock.json | ||
| package.json | ||
| postcss.config.js | ||
| run_all.sh | ||
| sbom.json | ||
| serve.json | ||
| tsconfig.app.json | ||
| tsconfig.config.json | ||
| tsconfig.json | ||
| tsconfig.node.json | ||
| tsconfig.vitest.json | ||
| tsconfig.vitest.tsbuildinfo | ||
| vite.config.ts | ||
| vitest.chat-history.config.ts | ||
| vitest.config.ts | ||
README.md
web
This template should help get you started developing with Vue 3 in Vite.
Recommended IDE Setup
VSCode + Volar (and disable Vetur) + TypeScript Vue Plugin (Volar).
Type Support for .vue Imports in TS
TypeScript cannot handle type information for .vue imports by default, so we replace the tsc CLI with vue-tsc for type checking. In editors, we need TypeScript Vue Plugin (Volar) to make the TypeScript language service aware of .vue types.
If the standalone TypeScript plugin doesn't feel fast enough to you, Volar has also implemented a Take Over Mode that is more performant. You can enable it by the following steps:
- Disable the built-in TypeScript Extension
- Run
Extensions: Show Built-in Extensionsfrom VSCode's command palette - Find
TypeScript and JavaScript Language Features, right click and selectDisable (Workspace)
- Run
- Reload the VSCode window by running
Developer: Reload Windowfrom the command palette.
Customize configuration
See Vite Configuration Reference.
Project Setup
npm install
Compile and Hot-Reload for Development
For stand-alone UI development environment, create .env file and which contains below environment variable
VITE_OPENOBSERVE_ENDPOINT=http://localhost:5080/
npm run dev
Type-Check, Compile and Minify for Production
npm run build
Run Unit Tests with Vitest
npm run test:unit
Run End-to-End Tests with Cypress
npm run test:e2e:dev
This runs the end-to-end tests against the Vite development server. It is much faster than the production build.
But it's still recommended to test the production build with test:e2e before deploying (e.g. in CI environments):
npm run build
npm run test:e2e
Lint with ESLint
npm run lint