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Index ¶
Examples ¶
Constants ¶
This section is empty.
Variables ¶
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var ( // Open opens a file for reading within the given context Open = F.Flow3( openIOE, RIOE.FromIOEither[*os.File], RIOE.WithContext[*os.File], ) )
Functions ¶
func ReadFile ¶
func ReadFile(path string) RIOE.ReaderIOEither[[]byte]
ReadFile reads a file in the scope of a context
Example ¶
package main
import (
"context"
"fmt"
RIO "github.com/IBM/fp-go/context/readerio"
R "github.com/IBM/fp-go/context/readerioeither"
"github.com/IBM/fp-go/errors"
F "github.com/IBM/fp-go/function"
IO "github.com/IBM/fp-go/io"
J "github.com/IBM/fp-go/json"
)
type RecordType struct {
Data string `json:"data"`
}
func getData(r RecordType) string {
return r.Data
}
func main() {
data := F.Pipe4(
ReadFile("./data/file.json"),
R.ChainEitherK(J.Unmarshal[RecordType]),
R.ChainFirstIOK(IO.Logf[RecordType]("Log: %v")),
R.Map(getData),
R.GetOrElse(F.Flow2(
errors.ToString,
RIO.Of[string],
)),
)
result := data(context.Background())
fmt.Println(result())
}
Output: Carsten
Types ¶
This section is empty.
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