alice.pds.demo.boltless.dev
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appview: introduce knotstream consumer
similar to jetstream consumer, we now ingest events from every known
knot.
Signed-off-by: oppiliappan <me@oppi.li>
author
oppiliappan
committer
Tangled
date
(Jun 10, 2025, 9:12 PM UTC)
commit
3df09b5b
3df09b5bde9ec3ebc4190f1f99822c49dc19e1f1
parent
8338c984
8338c9848c9ecff02ca7874f6d7962207b0d2eaf
+118
-8
+18
-8
appview/config/config.go
+18
-8
appview/config/config.go
···
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"context"
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"fmt"
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"net/url"
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+
"time"
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"github.com/sethvargo/go-envconfig"
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)
···
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type JetstreamConfig struct {
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Endpoint string `env:"ENDPOINT, default=wss://jetstream1.us-east.bsky.network/subscribe"`
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}
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+
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type KnotstreamConfig struct {
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RetryInterval time.Duration `env:"RETRY_INTERVAL, default=60s"`
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MaxRetryInterval time.Duration `env:"MAX_RETRY_INTERVAL, default=120m"`
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ConnectionTimeout time.Duration `env:"CONNECTION_TIMEOUT, default=5s"`
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WorkerCount int `env:"WORKER_COUNT, default=64"`
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QueueSize int `env:"QUEUE_SIZE, default=100"`
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}
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type ResendConfig struct {
···
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}
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type Config struct {
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-
Core CoreConfig `env:",prefix=TANGLED_"`
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-
Jetstream JetstreamConfig `env:",prefix=TANGLED_JETSTREAM_"`
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-
Resend ResendConfig `env:",prefix=TANGLED_RESEND_"`
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-
Posthog PosthogConfig `env:",prefix=TANGLED_POSTHOG_"`
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Camo CamoConfig `env:",prefix=TANGLED_CAMO_"`
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Avatar AvatarConfig `env:",prefix=TANGLED_AVATAR_"`
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-
OAuth OAuthConfig `env:",prefix=TANGLED_OAUTH_"`
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-
Redis RedisConfig `env:",prefix=TANGLED_REDIS_"`
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Core CoreConfig `env:",prefix=TANGLED_"`
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Jetstream JetstreamConfig `env:",prefix=TANGLED_JETSTREAM_"`
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Knotstream KnotstreamConfig `env:",prefix=TANGLED_KNOTSTREAM_"`
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Resend ResendConfig `env:",prefix=TANGLED_RESEND_"`
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Posthog PosthogConfig `env:",prefix=TANGLED_POSTHOG_"`
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Camo CamoConfig `env:",prefix=TANGLED_CAMO_"`
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Avatar AvatarConfig `env:",prefix=TANGLED_AVATAR_"`
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OAuth OAuthConfig `env:",prefix=TANGLED_OAUTH_"`
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Redis RedisConfig `env:",prefix=TANGLED_REDIS_"`
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}
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func LoadConfig(ctx context.Context) (*Config, error) {
+89
appview/state/knotstream.go
+89
appview/state/knotstream.go
···
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+
package state
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import (
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"encoding/json"
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"fmt"
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"slices"
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"time"
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+
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"tangled.sh/tangled.sh/core/api/tangled"
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"tangled.sh/tangled.sh/core/appview/cache"
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"tangled.sh/tangled.sh/core/appview/config"
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"tangled.sh/tangled.sh/core/appview/db"
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kc "tangled.sh/tangled.sh/core/knotclient"
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"tangled.sh/tangled.sh/core/log"
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"tangled.sh/tangled.sh/core/rbac"
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)
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func KnotstreamConsumer(c *config.Config, d *db.DB, enforcer *rbac.Enforcer) (*kc.EventConsumer, error) {
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knots, err := db.GetCompletedRegistrations(d)
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if err != nil {
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return nil, err
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}
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srcs := make(map[kc.EventSource]struct{})
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for _, k := range knots {
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s := kc.EventSource{k}
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srcs[s] = struct{}{}
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}
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logger := log.New("knotstream")
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cache := cache.New(c.Redis.Addr)
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cursorStore := kc.NewRedisCursorStore(cache)
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cfg := kc.ConsumerConfig{
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Sources: srcs,
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ProcessFunc: knotstreamIngester(d, enforcer),
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RetryInterval: c.Knotstream.RetryInterval,
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MaxRetryInterval: c.Knotstream.MaxRetryInterval,
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ConnectionTimeout: c.Knotstream.ConnectionTimeout,
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WorkerCount: c.Knotstream.WorkerCount,
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QueueSize: c.Knotstream.QueueSize,
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Logger: logger,
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Dev: c.Core.Dev,
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CursorStore: &cursorStore,
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}
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return kc.NewEventConsumer(cfg), nil
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}
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func knotstreamIngester(d *db.DB, enforcer *rbac.Enforcer) kc.ProcessFunc {
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return func(source kc.EventSource, msg kc.Message) error {
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switch msg.Nsid {
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case tangled.GitRefUpdateNSID:
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return ingestRefUpdate(d, enforcer, source, msg)
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case tangled.PipelineNSID:
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// TODO
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}
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return nil
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}
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}
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func ingestRefUpdate(d *db.DB, enforcer *rbac.Enforcer, source kc.EventSource, msg kc.Message) error {
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var record tangled.GitRefUpdate
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err := json.Unmarshal(msg.EventJson, &record)
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if err != nil {
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return err
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}
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knownKnots, err := enforcer.GetDomainsForUser(record.CommitterDid)
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if err != nil {
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return err
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}
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if !slices.Contains(knownKnots, source.Knot) {
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return fmt.Errorf("%s does not belong to %s, something is fishy", record.CommitterDid, source.Knot)
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}
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punch := db.Punch{
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Did: record.CommitterDid,
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Date: time.Now(),
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Count: 1,
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}
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if err := db.AddPunch(d, punch); err != nil {
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return err
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}
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return nil
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}
+11
appview/state/state.go
+11
appview/state/state.go
···
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jc *jetstream.JetstreamClient
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config *config.Config
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repoResolver *reporesolver.RepoResolver
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knotstream *knotclient.EventConsumer
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}
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func Make(config *config.Config) (*State, error) {
···
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return nil, fmt.Errorf("failed to start jetstream watcher: %w", err)
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}
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knotstream, err := KnotstreamConsumer(config, d, enforcer)
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if err != nil {
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return nil, fmt.Errorf("failed to start knotstream consumer: %w", err)
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}
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knotstream.Start(context.Background())
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state := &State{
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d,
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oauth,
···
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jc,
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config,
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repoResolver,
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knotstream,
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}
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return state, nil
···
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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+
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// add this knot to knotstream
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go s.knotstream.AddSource(context.Background(), knotclient.EventSource{domain})
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w.Write([]byte("check success"))
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}