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Support the default response #59

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Support the default response #59

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26 changes: 24 additions & 2 deletions src/OpenApi.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,7 @@ interface ParsedOperation {
readonly pathTemplate: string
readonly successSchemas: ReadonlyMap<string, string>
readonly errorSchemas: ReadonlyMap<string, string>
readonly fallbackSchema: string | undefined
}

export const make = Effect.gen(function* () {
Expand Down Expand Up @@ -123,6 +124,7 @@ export const make = Effect.gen(function* () {
payloadFormData: false,
successSchemas: new Map(),
errorSchemas: new Map(),
fallbackSchema: undefined,
paramsOptional: true,
}
const schemaId = identifier(operation.operationId ?? path)
Expand Down Expand Up @@ -207,6 +209,9 @@ export const make = Effect.gen(function* () {
const statusLower = status.toLowerCase()
const statusMajorNumber = Number(status[0])
if (isNaN(statusMajorNumber)) {
if (status === "default") {
op.fallbackSchema = schemaName
}
return
} else if (statusMajorNumber < 4) {
op.successSchemas.set(statusLower, schemaName)
Expand Down Expand Up @@ -258,7 +263,7 @@ export class OpenApiTransformer extends Context.Tag("OpenApiTransformer")<
operations: ReadonlyArray<ParsedOperation>,
) => string
}
>() {}
>() { }

export const layerTransformerSchema = Layer.sync(OpenApiTransformer, () => {
const operationsToInterface = (
Expand Down Expand Up @@ -335,6 +340,18 @@ ${clientErrorSource(name)}`
HttpClientResponse.schemaBodyJson(schema)(response),
(cause) => Effect.fail(${name}Error(tag, cause, response)),
)
const decodeFallback =
<const Tag extends string, A, I, R>(tag: Tag, schema: S.Schema<A, I, R>) =>
(response: HttpClientResponse.HttpClientResponse): Effect.Effect<
A,
HttpClientError.ResponseError | ParseError | ClientError<Tag, A>,
R
> => {
const decode = HttpClientResponse.schemaBodyJson(schema)(response)
return response.status < 400
? decode
: Effect.flatMap(decode, (cause) => Effect.fail(${name}Error(tag, cause, response)))
}
return {
httpClient,
${operations.map(operationToImpl).join(",\n ")}
Expand Down Expand Up @@ -386,7 +403,12 @@ ${clientErrorSource(name)}`
operation.errorSchemas.forEach((schema, status) => {
decodes.push(`"${status}": decodeError("${schema}", ${schema})`)
})
decodes.push(`orElse: unexpectedStatus`)
if (operation.fallbackSchema !== undefined) {
const schema = operation.fallbackSchema
decodes.push(`orElse: decodeFallback("${schema}", ${schema})`)
} else {
decodes.push(`orElse: unexpectedStatus`)
}

pipeline.push(`withResponse(HttpClientResponse.matchStatus({
${decodes.join(",\n ")}
Expand Down