Eric Rakestraw
0cc2862170
feedkit now contains a reusable core, while weatherfeeder is a concrete implementation that includes weather-specific functions.
37 lines
866 B
Go
37 lines
866 B
Go
package sinks
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import (
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"context"
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"encoding/json"
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"fmt"
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"gitea.maximumdirect.net/ejr/feedkit/event"
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)
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type StdoutSink struct{ name string }
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func NewStdoutSink(name string) *StdoutSink {
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return &StdoutSink{name: name}
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}
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func (s *StdoutSink) Name() string { return s.name }
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func (s *StdoutSink) Consume(ctx context.Context, e event.Event) error {
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_ = ctx
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// Boundary validation: if something upstream violated invariants,
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// surface it loudly rather than printing partial nonsense.
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if err := e.Validate(); err != nil {
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return fmt.Errorf("stdout sink: invalid event: %w", err)
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}
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// Generic default: one JSON line per event.
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// This makes stdout useful across all domains and easy to pipe into jq / logs.
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b, err := json.Marshal(e)
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if err != nil {
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return fmt.Errorf("stdout sink: marshal event: %w", err)
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}
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fmt.Println(string(b))
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return nil
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}
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