mirror of https://github.com/waku-org/nwaku.git
80 lines
2.5 KiB
Nim
80 lines
2.5 KiB
Nim
when (NimMajor, NimMinor) < (1, 4):
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{.push raises: [Defect].}
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else:
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{.push raises: [].}
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import
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std/typetraits,
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std/os,
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stew/results,
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chronicles,
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serialization,
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json_serialization,
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json_serialization/std/options,
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json_serialization/std/net,
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json_serialization/std/sets,
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presto/common
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import
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./serdes,
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./responses
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logScope:
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topics = "waku node rest"
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proc encodeBytesOf*[T](value: T,
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contentType: string): RestResult[seq[byte]]=
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let reqContentType = MediaType.init(contentType)
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if reqContentType != MIMETYPE_JSON:
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error "Unsupported contentType value", contentType = contentType, typ = value.type.name
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return err("Unsupported contentType")
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let encoded = ?encodeIntoJsonBytes(value)
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return ok(encoded)
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func decodeRequestBody*[T](contentBody: Option[ContentBody]) : Result[T, RestApiResponse] =
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if contentBody.isNone():
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return err(RestApiResponse.badRequest("Missing content body"))
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let reqBodyContentType = contentBody.get().contentType.mediaType
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if reqBodyContentType != MIMETYPE_JSON and reqBodyContentType != MIMETYPE_TEXT:
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return err(RestApiResponse.badRequest("Wrong Content-Type, expected application/json or text/plain"))
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let reqBodyData = contentBody.get().data
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let requestResult = decodeFromJsonBytes(T, reqBodyData)
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if requestResult.isErr():
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return err(RestApiResponse.badRequest("Invalid content body, could not decode. " &
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$requestResult.error))
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return ok(requestResult.get())
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proc decodeBytes*(t: typedesc[string], value: openarray[byte],
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contentType: Opt[ContentTypeData]): RestResult[string] =
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if MediaType.init($contentType) != MIMETYPE_TEXT:
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error "Unsupported contentType value", contentType = contentType
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return err("Unsupported contentType")
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var res: string
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if len(value) > 0:
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res = newString(len(value))
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copyMem(addr res[0], unsafeAddr value[0], len(value))
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return ok(res)
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proc decodeBytes*[T](t: typedesc[T],
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data: openArray[byte],
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contentType: Opt[ContentTypeData]): RestResult[T] =
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let reqContentType = contentType.valueOr():
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error "Unsupported response, missing contentType value"
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return err("Unsupported response, missing contentType")
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if reqContentType.mediaType != MIMETYPE_JSON and reqContentType.mediaType != MIMETYPE_TEXT:
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error "Unsupported response contentType value", contentType = contentType
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return err("Unsupported response contentType")
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let decoded = ?decodeFromJsonBytes(T, data)
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return ok(decoded)
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