add initial

.gitignore

@@ -0,0 +1,3 @@
+dist
+node_modules
+*.log

esbuild.js

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+const path = require('path')
+const { build } = require('esbuild')
+
+const buildFile = (input, output) =>
+	build({
+		entryPoints: [input],
+		outfile: output,
+		bundle: true,
+		platform: 'node',
+		target: 'node14',
+		plugins: [
+			{
+				name: 'make-all-packages-external',
+				setup(build) {
+					let filter = /^[^./]|^\.[^./]|^\.\.[^/]/
+					build.onResolve({ filter }, (args) => ({
+						path: args.path,
+						external: true,
+					}))
+				},
+			},
+		],
+		watch: process.argv.includes('-w'),
+	})
+
+buildFile(`./src/index.ts`, `./dist/index.js`).catch((error) => {
+	if (!error.errors) {
+		console.error(error)
+	}
+	process.exit(1)
+})

package.json

@@ -0,0 +1,18 @@
+{
+  "name": "@karimsa/context",
+  "version": "0.0.0",
+  "main": "./dist/index.js",
+  "scripts": {
+    "start": "node ./dist/index.js",
+    "build": "tsc && node esbuild"
+  },
+  "devDependencies": {
+    "@types/node": "^16.7.13",
+    "@types/uuid": "^8.3.1",
+    "esbuild": "^0.12.25",
+    "typescript": "^4.4.2"
+  },
+  "dependencies": {
+    "uuid": "^8.3.2"
+  }
+}

src/index.ts

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+import * as uuid from 'uuid';
+
+class OperationContextEntry {
+    private readonly trace: Error;
+    private readonly contextValues: Record<string, any> = {};
+
+    constructor(private readonly context: OperationContext) {
+        this.trace = new Error('-----');
+    }
+
+    next() {
+        return this.context.next()
+    }
+
+    addContext(key: string, value: any): OperationContextEntry {
+        this.contextValues[key] = value
+        return this
+    }
+
+    addHttpRequest(request: { method: string; url: string; body: any }, response: { status: number; body: any }): OperationContextEntry {
+        this.addContext('request', { method: request.method, url: request.method, body: request.body });
+        this.addContext('response', { status: response.status, body: response.body })
+        return this
+    }
+
+    toJSON() {
+        const stacktrace = String(this.trace.stack || this.trace).split('\n');
+        return {
+            values: this.contextValues,
+            // Remove the first line, it has an empty error message
+            stacktrace: stacktrace.slice(1).map(line => line.trim()),
+        };
+    }
+}
+
+export class OperationContext {
+    private readonly id: string = uuid.v4();
+    private trace: OperationContextEntry[] = [];
+
+    next(): OperationContextEntry {
+        const entry = new OperationContextEntry(this);
+        this.trace.push(entry);
+        return entry;
+    }
+
+    toJSON() {
+        return {
+            id: this.id,
+            trace: this.trace.map(entry => entry.toJSON()),
+        }
+    }
+}

tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "es5",
+    "lib": ["esnext"],
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "emitDeclarationOnly": true,
+    "allowSyntheticDefaultImports": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "strict": true,
+    "skipLibCheck": true,
+    "declaration": true,
+    "declarationDir": "./dist"
+  }
+}

yarn.lock

@@ -0,0 +1,28 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+"@types/node@^16.7.13":
+  version "16.7.13"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-16.7.13.tgz#86fae356b03b5a12f2506c6cf6cd9287b205973f"
+  integrity sha512-pLUPDn+YG3FYEt/pHI74HmnJOWzeR+tOIQzUx93pi9M7D8OE7PSLr97HboXwk5F+JS+TLtWuzCOW97AHjmOXXA==
+
+"@types/uuid@^8.3.1":
+  version "8.3.1"
+  resolved "https://registry.yarnpkg.com/@types/uuid/-/uuid-8.3.1.tgz#1a32969cf8f0364b3d8c8af9cc3555b7805df14f"
+  integrity sha512-Y2mHTRAbqfFkpjldbkHGY8JIzRN6XqYRliG8/24FcHm2D2PwW24fl5xMRTVGdrb7iMrwCaIEbLWerGIkXuFWVg==
+
+esbuild@^0.12.25:
+  version "0.12.25"
+  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.12.25.tgz#c2131cef022cf9fe94aaa5e00110b27fc976221a"
+  integrity sha512-woie0PosbRSoN8gQytrdCzUbS2ByKgO8nD1xCZkEup3D9q92miCze4PqEI9TZDYAuwn6CruEnQpJxgTRWdooAg==
+
+typescript@^4.4.2:
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.4.2.tgz#6d618640d430e3569a1dfb44f7d7e600ced3ee86"
+  integrity sha512-gzP+t5W4hdy4c+68bfcv0t400HVJMMd2+H9B7gae1nQlBzCqvrXX+6GL/b3GAgyTH966pzrZ70/fRjwAtZksSQ==
+
+uuid@^8.3.2:
+  version "8.3.2"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-8.3.2.tgz#80d5b5ced271bb9af6c445f21a1a04c606cefbe2"
+  integrity sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==