28 lines
827 B
Markdown
28 lines
827 B
Markdown
# Caller
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Package caller is used to dynamically call functions with data unmarshalled
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into the functions' first argument. Its main purpose is to hide common
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unmarshalling code from each function implementation thus reducing
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boilerplate and making package interaction code sexier.
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[Documentation](https://godoc.org/github.com/localhots/shezmu/caller)
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Caller abstracts away the process of unmarshaling data before processing.
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```go
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type PriceUpdate struct {
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Product string `json:"product"`
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Amount float32 `json:"amount"`
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}
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func PriceUpdatePrinter(p PriceUpdate) {
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log.Printf("Price for %q is now $%.2f", p.Product, p.Amount)
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}
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// Error handling is skipped for clarity
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func main() {
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printer, _ := caller.New(PriceUpdatePrinter)
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_ = printer.Call([]byte(`{"product": "Paperclip", "amount": 0.01}`))
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}
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```
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