protected open fun renderHttpSerialize()

in smithy-kotlin-codegen/src/main/kotlin/software/amazon/smithy/kotlin/codegen/rendering/protocol/HttpBindingProtocolGenerator.kt [344:393]
43 lines of code
4 McCabe index (conditional complexity)

    protected open fun renderHttpSerialize(
        ctx: ProtocolGenerator.GenerationContext,
        op: OperationShape,
        writer: KotlinWriter
    ) {
        val resolver = getProtocolHttpBindingResolver(ctx.model, ctx.service)
        val httpTrait = resolver.httpTrait(op)
        val requestBindings = resolver.requestBindings(op)

        writer
            .addImport(RuntimeTypes.Core.ExecutionContext)
            .write("builder.method = #T.#L", RuntimeTypes.Http.HttpMethod, httpTrait.method.uppercase())
            .write("")
            .call {
                // URI components
                writer.withBlock("builder.url {", "}") {
                    renderUri(ctx, op, writer)

                    // Query Parameters
                    renderQueryParameters(ctx, httpTrait, requestBindings, writer)
                }
            }
            .write("")
            .call {
                // headers
                val headerBindings = requestBindings
                    .filter { it.location == HttpBinding.Location.HEADER }
                    .sortedBy { it.memberName }

                val prefixHeaderBindings = requestBindings
                    .filter { it.location == HttpBinding.Location.PREFIX_HEADERS }

                if (headerBindings.isNotEmpty() || prefixHeaderBindings.isNotEmpty()) {
                    writer
                        .addImport(RuntimeTypes.Http.Request.headers)
                        .withBlock("builder.#T {", "}", RuntimeTypes.Http.Request.headers) {
                            renderStringValuesMapParameters(ctx, headerBindings, writer)
                            prefixHeaderBindings.forEach {
                                writer.withBlock("input.${it.member.defaultName()}?.filter { it.value != null }?.forEach { (key, value) ->", "}") {
                                    write("append(\"#L\$key\", value!!)", it.locationName)
                                }
                            }
                        }
                }
            }
            .write("")
            .call {
                renderSerializeHttpBody(ctx, op, writer)
            }
    }