https://github.com/martin-volf/elm-jsonrpc

JSON RPC client for Elm
https://github.com/martin-volf/elm-jsonrpc

elm elm-lang json-rpc-client

Last synced: about 1 month ago
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JSON RPC client for Elm

• Host: GitHub
• URL: https://github.com/martin-volf/elm-jsonrpc
• Owner: martin-volf
• License: mit
• Created: 2017-07-19T13:12:25.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2017-10-06T11:05:10.000Z (about 7 years ago)
• Last Synced: 2024-10-21T18:22:17.398Z (2 months ago)
• Topics: elm, elm-lang, json-rpc-client
• Language: Elm
• Size: 14.6 KB
• Stars: 1
• Watchers: 2
• Forks: 1
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# elm-jsonrpc

`elm-jsonrpc` is a simple JSON RPC request building and, more importantly,

request chaining tool.  You will not need such tool if you do not plan to send

more than one or two RPC requests in a batch.  On the other hand, if you need

to send several requests one depending on the other, handling errors and

passing results may become troublesome.

## Installation

```bash

elm package install martin-volf/elm-jsonrpc

```

## Example

```elm

requestOp : String -> Int -> Int -> JsonRPC.Command Ctx Msg Int

requestOp op a b =

    JsonRPC.request

        op

        [ JsonRPC.simpleParam "a" (toString a), JsonRPC.simpleParam "b" (toString b) ]

        Decode.int

requestPlus : Int -> Int -> JsonRPC.Command Ctx Msg Int

requestPlus =

    requestOp "plus"

requestMinus : Int -> Int -> JsonRPC.Command Ctx Msg Int

requestMinus =

    requestOp "minus"

requestTimes : Int -> Int -> JsonRPC.Command Ctx Msg Int

requestTimes =

    requestOp "times"

requestDiv : Int -> Int -> JsonRPC.Command Ctx Msg Int

requestDiv =

    requestOp "div"

{-| Let the server compute (1 + 2) * (3 - 4)

-}

compoundRequest : JsonRPC.Command Ctx Msg Int

compoundRequest =

    requestPlus 1 2

        |> JsonRPC.andThen

            (\sum ->

                requestMinus 3 4

                    |> JsonRPC.andThen (requestTimes sum)

            )

```