BreizhHardware/express-prom-bundle
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Fix types and add tests

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This commit is contained in:
KARASZI István
2019-04-30 22:26:39 +02:00
parent b00d88c4a7
commit 8df2778337
7 changed files with 817 additions and 54 deletions
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47
index.d.ts vendored
View File

@@ -1,47 +0,0 @@
import * as express from "express";
import { DefaultMetricsCollectorConfiguration } from "prom-client";
type NormalizePathRegexs = [string, string];
interface Labels {
[key: string]: string | number;
}
interface Opts {
autoregister?: boolean;
buckets?: number[];
customLabels?: { [key: string]: any };
includeStatusCode?: boolean;
includeMethod?: boolean;
includePath?: boolean;
includeUp?: boolean;
metricType?: "summary" | "histogram";
metricsPath?: string;
promClient?: DefaultMetricsCollectorConfiguration;
normalizePath?: NormalizePathRegexs;
formatStatusCode?: (res: express.Response) => number | string;
transformLabels?: (
labels: Labels,
req: express.Request,
res: express.Response
) => Labels;
// https://github.com/disjunction/url-value-parser#options
urlValueParser?: {
minHexLength?: number;
minBase64Length?: number;
replaceMasks?: string[];
extraMasks?: string[];
};
}
export function normalizePath(
req: express.Request,
opts?: { normalizePath?: NormalizePathRegexs }
): string;
export default function(opts: Opts): express.RequestHandler;

657
package-lock.json generated
View File

@@ -1,6 +1,6 @@
{
"name": "express-prom-bundle",
"version": "5.0.0",
"version": "5.1.4",
"lockfileVersion": 1,
"requires": true,
"dependencies": {
@@ -24,6 +24,80 @@
"js-tokens": "^4.0.0"
}
},
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"resolved": "https://registry.npmjs.org/@types/body-parser/-/body-parser-1.17.0.tgz",
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"dev": true,
"requires": {
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}
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"dev": true
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"resolved": "https://registry.npmjs.org/@types/range-parser/-/range-parser-1.2.3.tgz",
"integrity": "sha512-ewFXqrQHlFsgc09MK5jP5iR7vumV/BYayNC6PgJO2LPe8vrnNFyjQjSppfEngITi0qvfKtzFvgKymGheFM9UOA==",
"dev": true
},
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"version": "1.13.2",
"resolved": "https://registry.npmjs.org/@types/serve-static/-/serve-static-1.13.2.tgz",
"integrity": "sha512-/BZ4QRLpH/bNYgZgwhKEh+5AsboDBcUdlBYgzoLX0fpj3Y2gp6EApyOlM3bK53wQS/OE1SrdSYBAbux2D1528Q==",
"dev": true,
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"@types/mime": "*"
}
},
"abbrev": {
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"resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.0.9.tgz",
@@ -158,6 +232,65 @@
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"integrity": "sha1-Y/1D99weO7fONZR9uP42mj9Yx0s=",
"dev": true,
"requires": {
"chalk": "^1.1.3",
"esutils": "^2.0.2",
"js-tokens": "^3.0.2"
},
"dependencies": {
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"integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
"dev": true
},
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"integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
"dev": true
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"chalk": {
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"resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
"integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
"dev": true,
"requires": {
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"escape-string-regexp": "^1.0.2",
"has-ansi": "^2.0.0",
"strip-ansi": "^3.0.0",
"supports-color": "^2.0.0"
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"js-tokens": {
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"integrity": "sha1-mGbfOVECEw449/mWvOtlRDIJwls=",
"dev": true
},
"strip-ansi": {
"version": "3.0.1",
"resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
"integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
"dev": true,
"requires": {
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"integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
"dev": true
}
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@@ -173,6 +306,12 @@
"tweetnacl": "^0.14.3"
}
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"integrity": "sha1-DmVcm5wkNeqraL9AJyJtK1WjRSQ=",
"dev": true
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"body-parser": {
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"resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.3.tgz",
@@ -227,6 +366,12 @@
"concat-map": "0.0.1"
}
},
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"version": "1.1.1",
"resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-1.1.1.tgz",
"integrity": "sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=",
"dev": true
},
"bytes": {
"version": "3.0.0",
"resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
@@ -258,6 +403,12 @@
"integrity": "sha1-r6uWJikQp/M8GaV3WCXGnzTjUMo=",
"dev": true
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"resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
"integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
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"resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
@@ -302,12 +453,29 @@
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"dev": true,
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}
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"integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=",
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"integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=",
"dev": true
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"color-convert": {
"version": "1.9.3",
"resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
@@ -342,8 +510,7 @@
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"integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==",
"dev": true,
"optional": true
"dev": true
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"component-emitter": {
"version": "1.2.1",
@@ -448,6 +615,12 @@
"ms": "^2.1.1"
}
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"integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=",
"dev": true
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"deep-equal": {
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@@ -460,6 +633,16 @@
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"definitelytyped-header-parser": {
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@@ -484,6 +667,12 @@
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@@ -493,6 +682,85 @@
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@@ -679,6 +956,21 @@
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@@ -826,6 +1118,15 @@
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@@ -885,6 +1197,21 @@
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@@ -971,6 +1298,23 @@
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@@ -1642,18 +2069,83 @@
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"integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
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},
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"resolved": "http://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
@@ -1672,6 +2164,12 @@
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},
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},
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@@ -1708,6 +2206,15 @@
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},
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}
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@@ -1724,6 +2231,16 @@
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},
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"requires": {
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}
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@@ -1814,6 +2331,18 @@
"uuid": "^3.3.2"
}
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"integrity": "sha1-jGStX9MNqxyXbiNE/+f3kqam30I=",
"dev": true
},
"require-main-filename": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-1.0.1.tgz",
"integrity": "sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE=",
"dev": true
},
"require-uncached": {
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"resolved": "http://registry.npmjs.org/require-uncached/-/require-uncached-1.0.3.tgz",
@@ -1941,6 +2470,12 @@
"send": "0.16.2"
}
},
"set-blocking": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
"integrity": "sha1-BF+XgtARrppoA93TgrJDkrPYkPc=",
"dev": true
},
"setprototypeof": {
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.0.tgz",
@@ -2046,6 +2581,12 @@
"ansi-regex": "^3.0.0"
}
},
"strip-eof": {
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"integrity": "sha1-u0P/VZim6wXYm1n80SnJgzE2Br8=",
"dev": true
},
"strip-json-comments": {
"version": "2.0.1",
"resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
@@ -2177,6 +2718,15 @@
"string-width": "^2.1.1"
}
},
"tdigest": {
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"resolved": "https://registry.npmjs.org/tdigest/-/tdigest-0.1.1.tgz",
"integrity": "sha1-Ljyyw56kSeVdHmzZEReszKRYgCE=",
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}
},
"text-table": {
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"resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz",
@@ -2262,6 +2812,12 @@
"mime-types": "~2.1.18"
}
},
"typescript": {
"version": "3.4.5",
"resolved": "https://registry.npmjs.org/typescript/-/typescript-3.4.5.tgz",
"integrity": "sha512-YycBxUb49UUhdNMU5aJ7z5Ej2XGmaIBL0x34vZ82fn3hGvD+bgrMrVDpatgz2f7YxUMJxMkbWxJZeAvDxVe7Vw==",
"dev": true
},
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@@ -2282,6 +2838,12 @@
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"dev": true
},
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"resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
@@ -2346,12 +2908,65 @@
"isexe": "^2.0.0"
}
},
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"resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
"integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
"dev": true
},
"wordwrap": {
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"resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
"integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
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},
"wrap-ansi": {
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"integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
"dev": true,
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},
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"integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
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},
"is-fullwidth-code-point": {
"version": "1.0.0",
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"integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
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}
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"integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
"dev": true,
"requires": {
"code-point-at": "^1.0.0",
"is-fullwidth-code-point": "^1.0.0",
"strip-ansi": "^3.0.0"
}
},
"strip-ansi": {
"version": "3.0.1",
"resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
"integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
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}
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"wrappy": {
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"resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -2373,6 +2988,42 @@
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},
"y18n": {
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"resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
"integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
"dev": true
},
"yargs": {
"version": "12.0.5",
"resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.5.tgz",
"integrity": "sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==",
"dev": true,
"requires": {
"cliui": "^4.0.0",
"decamelize": "^1.2.0",
"find-up": "^3.0.0",
"get-caller-file": "^1.0.1",
"os-locale": "^3.0.0",
"require-directory": "^2.1.1",
"require-main-filename": "^1.0.1",
"set-blocking": "^2.0.0",
"string-width": "^2.0.0",
"which-module": "^2.0.0",
"y18n": "^3.2.1 || ^4.0.0",
"yargs-parser": "^11.1.1"
}
},
"yargs-parser": {
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"resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
"integrity": "sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==",
"dev": true,
"requires": {
"camelcase": "^5.0.0",
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}
},
"ylru": {
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"resolved": "https://registry.npmjs.org/ylru/-/ylru-1.2.1.tgz",

13
package.json
View File

@@ -11,12 +11,13 @@
"method"
],
"files": [
"src",
"index.d.ts"
"src"
],
"types": "types",
"scripts": {
"test": "node_modules/jasme/run.js",
"coverage": "make coverage"
"coverage": "make coverage",
"dtslint": "dtslint types"
},
"author": "Konstantin Pogorelov <or@pluseq.com>",
"license": "MIT",
@@ -25,15 +26,19 @@
"url-value-parser": "^2.0.0"
},
"devDependencies": {
"@types/express": "^4.16.1",
"coveralls": "^3.0.2",
"dtslint": "^0.7.1",
"eslint": "^5.11.0",
"express": "^4.16.4",
"istanbul": "^0.4.5",
"jasme": "^6.0.0",
"koa": "^2.6.2",
"koa-connect": "^2.0.1",
"prom-client": "^11.3.0",
"supertest": "^3.3.0",
"supertest-koa-agent": "^0.3.0"
"supertest-koa-agent": "^0.3.0",
"typescript": "^3.4.5"
},
"peerDependencies": {
"prom-client": "^11.1.2"

57
types/index.d.ts vendored Normal file
View File

@@ -0,0 +1,57 @@
// TypeScript Version: 2.8
import { Request, RequestHandler, Response } from 'express';
import { DefaultMetricsCollectorConfiguration } from 'prom-client';
export = express_prom_bundle;
declare namespace express_prom_bundle {
interface Labels {
[key: string]: string | number;
}
type NormalizePathEntry = [string | RegExp, string];
type NormalizePathRegexs = NormalizePathEntry[];
type NormalizePathFn = (req: Request, opts: Opts) => string;
type NormalizeStatusCodeFn = (res: Response) => number | string;
type TransformLabelsFn = (labels: Labels, req: Request, res: Response) => Labels;
interface Opts {
autoregister?: boolean;
buckets?: number[];
customLabels?: { [key: string]: any };
includeStatusCode?: boolean;
includeMethod?: boolean;
includePath?: boolean;
includeUp?: boolean;
metricType?: 'summary' | 'histogram';
metricsPath?: string;
promClient?: { collectDefaultMetrics?: DefaultMetricsCollectorConfiguration };
normalizePath?: NormalizePathRegexs | NormalizePathFn;
formatStatusCode?: NormalizeStatusCodeFn;
transformLabels?: TransformLabelsFn;
// https://github.com/disjunction/url-value-parser#options
urlValueParser?: {
minHexLength?: number;
minBase64Length?: number;
replaceMasks?: string[];
extraMasks?: string[];
};
}
const normalizePath: NormalizePathFn;
const normalizeStatusCode: NormalizeStatusCodeFn;
function clusterMetrics(): RequestHandler;
}
interface express_prom_bundle {
normalizePath: express_prom_bundle.NormalizePathFn;
normalizeStatusCode: express_prom_bundle.NormalizeStatusCodeFn;
}
declare function express_prom_bundle(opts: express_prom_bundle.Opts): RequestHandler;

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import { Request, RequestHandler, Response } from 'express';
import * as promClient from 'prom-client';
import * as promBundle from 'express-prom-bundle';
// $ExpectType RequestHandler
const middleware: RequestHandler = promBundle({ includeMethod: true });
// $ExpectType: string
middleware.name;
promClient.register.clear();
// $ExpectType RequestHandler
promBundle({
normalizePath: [
// collect paths like "/customer/johnbobson" as just one "/custom/#name"
['^/customer/.*', '/customer/#name'],
// collect paths like "/bobjohnson/order-list" as just one "/#name/order-list"
['^.*/order-list', '/#name/order-list']
],
urlValueParser: {
minHexLength: 5,
extraMasks: [
'ORD[0-9]{5,}' // replace strings like ORD1243423, ORD673562 as #val
]
}
});
promClient.register.clear();
// $ExpectType RequestHandler
promBundle({
buckets: [0.1, 0.4, 0.7],
includeMethod: true,
includePath: true,
customLabels: { year: null },
transformLabels: (labels: promBundle.Labels) => ({
...labels,
year: new Date().getFullYear()
}),
metricType: 'summary',
metricsPath: '/prometheus',
promClient: {
collectDefaultMetrics: {
timeout: 1000
}
},
urlValueParser: {
minHexLength: 5,
extraMasks: [
'^[0-9]+\\.[0-9]+\\.[0-9]+$' // replace dot-separated dates with #val
]
},
normalizePath: [
['^/foo', '/example'] // replace /foo with /example
],
formatStatusCode: (res: Response) => res.statusCode + 100
});
// TypeScript workaround to write a readonly field
type Writable<T> = { -readonly [K in keyof T]: T[K] };
const wPromBundle: Writable<promBundle> = promBundle;
wPromBundle.normalizePath = (req: Request, opts: promBundle.Opts) => {
const path = promBundle.normalizePath(req, opts);
// count all docs as one path, but /docs/login as a separate one
return path.match(/^\/docs/) && !path.match(/^\/login/) ? '/docs/*' : path;
};
wPromBundle.normalizeStatusCode = (res: Response) => res.statusCode.toString();
// $ExpectType RequestHandler
promBundle.clusterMetrics();
// Missing test
// const stringReturn: string = promBundle.normalizePath({}, {});

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{
"compilerOptions": {
"module": "commonjs",
"lib": ["es6"],
"noImplicitAny": true,
"noImplicitThis": true,
"strictNullChecks": true,
"strictFunctionTypes": true,
"baseUrl": ".",
"paths": { "express-prom-bundle": ["."] },
"noEmit": true,
"forceConsistentCasingInFileNames": true
}
}

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{
"extends": "dtslint/dtslint.json"
}