mirror of
https://github.com/oarkflow/mq.git
synced 2025-10-05 16:06:55 +08:00
49 lines
1.5 KiB
Go
49 lines
1.5 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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v2 "github.com/oarkflow/mq/dag/v2"
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)
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func main() {
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dag := v2.NewDAG(func(taskID string, result v2.Result) {
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fmt.Printf("Final result for Task %s: %s\n", taskID, string(result.Data))
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})
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dag.AddNode("NodeA", func(payload json.RawMessage) v2.Result {
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var data map[string]any
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if err := json.Unmarshal(payload, &data); err != nil {
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return v2.Result{Error: err, Status: v2.StatusFailed}
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}
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data["allowed_voting"] = data["age"] == "18"
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updatedPayload, _ := json.Marshal(data)
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return v2.Result{Data: updatedPayload, Status: v2.StatusCompleted}
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})
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dag.AddNode("NodeB", func(payload json.RawMessage) v2.Result {
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var data map[string]any
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if err := json.Unmarshal(payload, &data); err != nil {
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return v2.Result{Error: err, Status: v2.StatusFailed}
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}
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data["female_voter"] = data["gender"] == "female"
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updatedPayload, _ := json.Marshal(data)
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return v2.Result{Data: updatedPayload, Status: v2.StatusCompleted}
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})
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dag.AddNode("NodeC", func(payload json.RawMessage) v2.Result {
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var data map[string]any
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if err := json.Unmarshal(payload, &data); err != nil {
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return v2.Result{Error: err, Status: v2.StatusFailed}
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}
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data["voted"] = true
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updatedPayload, _ := json.Marshal(data)
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return v2.Result{Data: updatedPayload, Status: v2.StatusCompleted}
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})
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dag.AddNode("Result", func(payload json.RawMessage) v2.Result {
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var data map[string]any
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json.Unmarshal(payload, &data)
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return v2.Result{Data: payload, Status: v2.StatusCompleted}
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})
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dag.Start(":8080")
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}
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