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Merge pull request #1009 from Azanul/aws-cost-calculation
Aws Lambda cost calculation improvements
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| package utils | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "strconv" | ||
|
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| "github.com/aws/aws-sdk-go-v2/service/pricing" | ||
| ) | ||
|
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| type ProductEntry struct { | ||
| Product struct { | ||
| Attributes struct { | ||
| Group string `json:"group"` | ||
| Operation string `json:"operation"` | ||
| } `json:"attributes"` | ||
| } `json:"product"` | ||
| Terms struct { | ||
| OnDemand map[string]struct { | ||
| PriceDimensions map[string]PriceDimensions `json:"priceDimensions"` | ||
| } `json:"OnDemand"` | ||
| } `json:"terms"` | ||
| } | ||
|
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| type PriceDimensions struct { | ||
| EndRange string `json:"endRange"` | ||
| BeginRange float64 `json:"beginRange,string"` | ||
| PricePerUnit struct { | ||
| USD float64 `json:"USD,string"` | ||
| } `json:"pricePerUnit"` | ||
| } | ||
|
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| func GetCost(pds []PriceDimensions, v float64) float64 { | ||
| total := 0.0 | ||
| for _, pd := range pds { | ||
| applicableRange := v | ||
| if pd.BeginRange < v { | ||
| if pd.EndRange != "Inf" { | ||
| endRange, _ := strconv.ParseFloat(pd.EndRange, 64) | ||
| if v > endRange { | ||
| applicableRange = endRange | ||
| } | ||
| } | ||
| total += (applicableRange - pd.BeginRange) * pd.PricePerUnit.USD | ||
| } | ||
| } | ||
| return total | ||
| } | ||
|
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| func GetPriceMap(pricingOutput *pricing.GetProductsOutput) (map[string][]PriceDimensions, error) { | ||
| priceMap := make(map[string][]PriceDimensions) | ||
|
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| if pricingOutput != nil && len(pricingOutput.PriceList) > 0 { | ||
| for _, item := range pricingOutput.PriceList { | ||
| price := ProductEntry{} | ||
| err := json.Unmarshal([]byte(item), &price) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to unmarshal JSON: %w", err) | ||
| } | ||
|
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| group := price.Product.Attributes.Group | ||
| unitPrices := []PriceDimensions{} | ||
| for _, pd := range price.Terms.OnDemand { | ||
| for _, p := range pd.PriceDimensions { | ||
| unitPrices = append(unitPrices, p) | ||
| } | ||
| } | ||
|
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| priceMap[group] = unitPrices | ||
| } | ||
| } | ||
|
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| return priceMap, nil | ||
| } |
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