language-avro: Language definition and parser for AVRO files.
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Properties
| Versions | 0.1.0.0, 0.1.1.0, 0.1.1.0, 0.1.2.0, 0.1.3.0, 0.1.3.1, 0.1.4.0 |
|---|---|
| Change log | None available |
| Dependencies | avro (>=0.4.7), base (>=4.12 && <5), containers, directory, filepath, megaparsec, text, vector [details] |
| License | Apache-2.0 |
| Copyright | Copyright © 2019-2020 <http://47deg.com 47 Degrees> |
| Author | Flavio Corpa |
| Maintainer | flavio.corpa@47deg.com |
| Category | Network |
| Home page | https://github.com/kutyel/avro-parser-haskell#readme |
| Uploaded | by FlavioCorpa at 2020-02-25T09:26:40Z |
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- language-avro-0.1.1.0.tar.gz [browse] (Cabal source package)
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Readme for language-avro-0.1.1.0
[back to package description]avro-parser-haskell
Language definition and parser for AVRO (.avdl) files.
Example
#!/usr/bin/env stack
-- stack --resolver lts-15.0 script --package language-avro,megaparsec,pretty-simple
module Main where
import Language.Avro.Parser (readWithImports)
import Text.Megaparsec.Error (ShowErrorComponent (..), errorBundlePretty)
import Text.Pretty.Simple (pPrint)
instance ShowErrorComponent Char where
showErrorComponent = show
main :: IO ()
main =
readWithImports "test" "PeopleService.avdl"
>>= either (putStrLn . errorBundlePretty) pPrint
-- λ>
-- Protocol
-- { ns = Just
-- ( Namespace
-- [ "example"
-- , "seed"
-- , "server"
-- , "protocol"
-- , "avro"
-- ]
-- )
-- , pname = "PeopleService"
-- , imports = [ IdlImport "People.avdl" ]
-- , types =
-- [ Record
-- { name = "Person"
-- , aliases = []
-- , doc = Nothing
-- , order = Nothing
-- , fields =
-- [ Field
-- { fldName = "name"
-- , fldAliases = []
-- , fldDoc = Nothing
-- , fldOrder = Nothing
-- , fldType = String { logicalTypeS = Nothing }
-- , fldDefault = Nothing
-- }
-- , Field
-- { fldName = "age"
-- , fldAliases = []
-- , fldDoc = Nothing
-- , fldOrder = Nothing
-- , fldType = Int { logicalTypeI = Nothing }
-- , fldDefault = Nothing
-- }
-- ]
-- }
-- , Record
-- { name = "NotFoundError"
-- , aliases = []
-- , doc = Nothing
-- , order = Nothing
-- , fields =
-- [ Field
-- { fldName = "message"
-- , fldAliases = []
-- , fldDoc = Nothing
-- , fldOrder = Nothing
-- , fldType = String { logicalTypeS = Nothing }
-- , fldDefault = Nothing
-- }
-- ]
-- }
-- , Record
-- { name = "DuplicatedPersonError"
-- , aliases = []
-- , doc = Nothing
-- , order = Nothing
-- , fields =
-- [ Field
-- { fldName = "message"
-- , fldAliases = []
-- , fldDoc = Nothing
-- , fldOrder = Nothing
-- , fldType = String { logicalTypeS = Nothing }
-- , fldDefault = Nothing
-- }
-- ]
-- }
-- , Record
-- { name = "PeopleRequest"
-- , aliases = []
-- , doc = Nothing
-- , order = Nothing
-- , fields =
-- [ Field
-- { fldName = "name"
-- , fldAliases = []
-- , fldDoc = Nothing
-- , fldOrder = Nothing
-- , fldType = String { logicalTypeS = Nothing }
-- , fldDefault = Nothing
-- }
-- ]
-- }
-- , Record
-- { name = "PeopleResponse"
-- , aliases = []
-- , doc = Nothing
-- , order = Nothing
-- , fields =
-- [ Field
-- { fldName = "result"
-- , fldAliases = []
-- , fldDoc = Nothing
-- , fldOrder = Nothing
-- , fldType = Union
-- { options =
-- [ NamedType "Person"
-- , NamedType "NotFoundError"
-- , NamedType "DuplicatedPersonError"
-- ]
-- }
-- , fldDefault = Nothing
-- }
-- ]
-- }
-- ]
-- , messages =
-- [ Method
-- { mname = "getPerson"
-- , args =
-- [ Argument
-- { atype = NamedType "example.seed.server.protocol.avro.PeopleRequest"
-- , aname = "request"
-- }
-- ]
-- , result = NamedType "example.seed.server.protocol.avro.PeopleResponse"
-- , throws = Null
-- , oneway = False
-- }
-- ]
-- }
⚠️ Warning: readWithImports only works right now if the import type is "idl"!