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gateway.go
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gateway.go
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// Copyright 2021 Nitric Pty Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// The AWS HTTP gateway plugin
package gateway_plugin
import (
"fmt"
"strings"
"github.com/nitric-dev/membrane/pkg/triggers"
"github.com/nitric-dev/membrane/pkg/worker"
"github.com/nitric-dev/membrane/pkg/plugins/gateway"
"github.com/nitric-dev/membrane/pkg/plugins/gateway/base_http"
"github.com/valyala/fasthttp"
)
func middleware(ctx *fasthttp.RequestCtx, wrkr worker.Worker) bool {
var triggerTypeString = string(ctx.Request.Header.Peek("x-nitric-source-type"))
// Handle Event/Subscription Request Types
if strings.ToUpper(triggerTypeString) == triggers.TriggerType_Subscription.String() {
trigger := string(ctx.Request.Header.Peek("x-nitric-source"))
requestId := string(ctx.Request.Header.Peek("x-nitric-request-id"))
payload := ctx.Request.Body()
err := wrkr.HandleEvent(&triggers.Event{
ID: requestId,
Topic: trigger,
Payload: payload,
})
if err != nil {
fmt.Println(err)
ctx.Error(fmt.Sprintf("Error processing event. Details: %s", err), 500)
} else {
ctx.SuccessString("text/plain", "Successfully Handled the Event")
}
// return here...
return false
}
return true
}
// Create new HTTP gateway
// XXX: No External Args for function atm (currently the plugin loader does not pass any argument information)
func New() (gateway.GatewayService, error) {
return base_http.New(middleware)
}