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  2. Setting up Data Tracing for API Requests in API Gateway

How do I set up data tracing for API requests in API Gateway?

In this guide, we will set up data tracing for API requests in AWS API Gateway using Pulumi. Data tracing helps in monitoring and debugging API requests by providing detailed logs of the requests and responses. We will create an API Gateway, enable tracing, and configure a stage to use tracing.

import * as pulumi from "@pulumi/pulumi";
import * as aws from "@pulumi/aws";

// Create an IAM role for API Gateway
const apiGatewayRole = new aws.iam.Role("apiGatewayRole", {
    assumeRolePolicy: JSON.stringify({
        Version: "2012-10-17",
        Statement: [
            {
                Action: "sts:AssumeRole",
                Effect: "Allow",
                Principal: {
                    Service: "apigateway.amazonaws.com",
                },
            },
        ],
    }),
});

// Attach the AWS managed policy for X-Ray tracing to the role
const apiGatewayRolePolicyAttachment = new aws.iam.RolePolicyAttachment("apiGatewayRolePolicyAttachment", {
    role: apiGatewayRole.name,
    policyArn: "arn:aws:iam::aws:policy/service-role/AWSXrayWriteOnlyAccess",
});

// Create a REST API
const api = new aws.apigateway.RestApi("api", {
    name: "example-api",
    description: "Example API for demonstrating tracing",
    endpointConfiguration: {
        types: "REGIONAL",
    },
});

// Create a resource
const resource = new aws.apigateway.Resource("resource", {
    parentId: api.rootResourceId,
    pathPart: "example",
    restApi: api.id,
});

// Create a method
const method = new aws.apigateway.Method("method", {
    authorization: "NONE",
    httpMethod: "GET",
    resourceId: resource.id,
    restApi: api.id,
});

// Create an integration
const integration = new aws.apigateway.Integration("integration", {
    httpMethod: method.httpMethod,
    resourceId: resource.id,
    restApi: api.id,
    type: "MOCK",
    requestTemplates: {
        "application/json": '{"statusCode": 200}',
    },
});

// Create a deployment
const deployment = new aws.apigateway.Deployment("deployment", {
    restApi: api.id,
    stageName: "dev",
}, { dependsOn: [integration] });

// Enable tracing on the stage
const stage = new aws.apigateway.Stage("stage", {
    deployment: deployment.id,
    restApi: api.id,
    stageName: "dev",
    xrayTracingEnabled: true,
});

// Export the API Gateway URL
export const apiUrl = deployment.invokeUrl;

Key Points

  • An IAM role is created and assigned the AWSXrayWriteOnlyAccess policy to allow API Gateway to send trace data to AWS X-Ray.
  • A REST API is created with a resource and a method.
  • A mock integration is set up to simulate the backend response.
  • A deployment and a stage are created, with tracing enabled on the stage.
  • The API Gateway URL is exported for easy access.

Summary

In this guide, we set up data tracing for API requests in AWS API Gateway using Pulumi. We created an IAM role, a REST API, a resource, a method, an integration, a deployment, and enabled tracing on the stage. This setup allows detailed logging and monitoring of API requests and responses.

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