基于 Serverless 实现静态博客访问统计功能

.├── Pulumi.dev.yaml├── Pulumi.yaml├── README.md├── index.ts├── package-lock.json├── package.json└── tsconfig.json

import * as aws from "@pulumi/aws";import * as awsx from "@pulumi/awsx";import * as pulumi from "@pulumi/pulumi";
// Create a mapping from 'route' to a countconst counterTable = new aws.dynamodb.Table("api-bmpi-dev", {    attributes: [{        name: "id",        type: "S",    }],    hashKey: "id",    readCapacity: 5,    writeCapacity: 5,});
// let bmpiAllPageViewsRoute = "bmpi-dev-all-page-views"; // all page views key
// Create an views API endpointconst viewsEndpoint = new awsx.apigateway.API("bmpi-dev-post-views", {    routes: [{        path: "/{route+}",        method: "GET",        eventHandler: async (event) => {            const route = event.pathParameters!["route"];
            console.log(`Getting count for '${route}'`);
            const client = new aws.sdk.DynamoDB.DocumentClient();
            const result = await client.update({                TableName: counterTable.name.get(),                Key: { id: route },                UpdateExpression: "SET hit = if_not_exists(hit, :zero) + :incr",                ExpressionAttributeValues: { ":zero": 0, ":incr": 1 },                ReturnValues:"UPDATED_NEW",            }).promise();
            let count = result.Attributes!.hit;                        return {                statusCode: 200,                headers: {                    "Access-Control-Allow-Headers" : "Content-Type",                    "Access-Control-Allow-Origin": "https://www.bmpi.dev",                    "Access-Control-Allow-Methods": "OPTIONS,POST,GET"                },                body: JSON.stringify({ route, count }),            };        },    }],});
// We have registered a domain, and a cert already (we could do most of this with Pulumi as well if we wanted!)let domainName = "api.bmpi.dev"; // `bmpi.dev` is regitered with Route53 let route53DomainZoneId = "Z3D746J1ZFXBYQ"; // The Hosted Zone I got when I registered `bmpi.dev`let certARN = "arn:aws:acm:us-east-1:745121664662:certificate/6e610430-46c8-4884-a1f7-471be45decf4"; // ACM cert for `*.bmpi.dev`
// API Gateway requires we register the Domain with it firstconst domain = new aws.apigateway.DomainName("domain", {    certificateArn: certARN,    domainName: domainName,});
// Then we can map a REST API to a domain with a BasePathMappingconst mapping = new aws.apigateway.BasePathMapping("mapping", {    restApi: viewsEndpoint.restAPI,    basePath: "page-views", // We map our API into the "/page-views" base path    stageName: viewsEndpoint.stage.stageName, // We map the stage we got for free with `.x.API` above    domainName: domain.domainName, // We map it into the domain we registered above});
// Finally, we need a DNS reocrd to point at our API Gatewayconst record = new aws.route53.Record("record", {    type: "A",    zoneId: route53DomainZoneId,    name: domainName, // Write a record for `api.bmpi.dev` into the zone for `bmpi.dev`    aliases: [{        name: domain.cloudfrontDomainName, // APIGateway provides it's own CloudFront distribution we can point at...        zoneId: domain.cloudfrontZoneId,        evaluateTargetHealth: true,    }],});
// It might take a while after we deploy the record above before the DNS propagates and allows us to resolve these URLs...export let endpoint = pulumi.interpolate`https://${record.name}/page-views`;

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