51 Commits

Author SHA1 Message Date
6af4f6b9c0 3.2.0
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2025-08-28 18:43:56 +00:00
1141681b60 feat(docs): Expand README with detailed usage/examples, update test runner and test script, and pin/bump dependencies 2025-08-28 18:43:56 +00:00
2bf04ccb70 3.1.2
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Default (tags) / test (push) Failing after 11m39s
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2025-08-28 16:06:44 +00:00
97232adbb0 fix(core): Update CI workflows and dependencies; apply small bugfixes and formatting improvements 2025-08-28 16:06:44 +00:00
dda83e35c0 3.1.1 2024-11-26 22:41:11 +01:00
8bf1af08d3 fix(core): Fix S3 cache manager methods for better path encoding consistency 2024-11-26 22:41:10 +01:00
69b2aa7fb8 3.1.0 2024-11-24 20:16:25 +01:00
75140e9d70 feat(core): Enhanced caching solution with optional configurations and improved documentation. 2024-11-24 20:16:25 +01:00
e45c662658 update description 2024-05-29 14:11:10 +02:00
d9b0ebb5ed update tsconfig 2024-04-14 13:38:03 +02:00
f5075abafb update npmextra.json: githost 2024-04-01 21:33:14 +02:00
e131b8c9ff update npmextra.json: githost 2024-04-01 19:57:25 +02:00
244d229fa3 update npmextra.json: githost 2024-03-30 21:46:21 +01:00
96080c5de0 3.0.8 2024-02-14 01:33:57 +01:00
a981c63f9b fix(core): update 2024-02-14 01:33:56 +01:00
cd5e2f03f4 3.0.7 2024-02-14 01:32:20 +01:00
eb5c1f40ee fix(core): update 2024-02-14 01:32:19 +01:00
ed1d66ee2a 3.0.6 2023-07-21 00:44:40 +02:00
45122024fc fix(core): update 2023-07-21 00:44:39 +02:00
fcaed1a3a0 3.0.5 2023-07-21 00:44:07 +02:00
0ce5eba798 fix(core): update 2023-07-21 00:44:06 +02:00
9d6111a77f 3.0.4 2023-07-20 22:54:08 +02:00
ac11045812 fix(core): update 2023-07-20 22:54:07 +02:00
2266ee0c73 switch to new org scheme 2023-07-11 00:00:42 +02:00
e4f0a60644 switch to new org scheme 2023-07-10 02:41:30 +02:00
946e1cb7d3 3.0.3 2023-01-09 13:01:09 +01:00
6e5d17a793 fix(core): update 2023-01-09 13:01:08 +01:00
3f7a3c2786 3.0.2 2022-06-09 19:23:56 +02:00
925921a9fe fix(core): update 2022-06-09 19:23:55 +02:00
61ccf38d85 3.0.1 2022-04-04 14:18:39 +02:00
061a79b0fd update 2022-04-04 14:18:36 +02:00
2f4fb82918 3.0.0 2022-04-02 17:40:38 +02:00
266da3b476 2.0.1 2022-03-22 23:15:08 +01:00
074767b294 fix(core): update 2022-03-22 23:15:08 +01:00
85abc4da3d 2.0.0 2022-03-22 22:45:13 +01:00
716d805723 BREAKING CHANGE(core): switch to esm 2022-03-22 22:45:12 +01:00
9feaa921bf 1.0.10 2021-05-10 14:26:32 +00:00
6b57e8b1f3 fix(caching): properly respect ttl for all cache levels 2021-05-10 14:26:32 +00:00
f7b6df5ff7 1.0.9 2021-04-23 18:50:21 +00:00
6a4df84f4f 1.0.8 2021-04-23 18:41:30 +00:00
17b59fd222 fix(core): update 2021-04-23 18:41:30 +00:00
d18f4b6928 1.0.7 2021-04-23 18:40:58 +00:00
e53ebc74f8 fix(core): update 2021-04-23 18:40:57 +00:00
be8227f451 1.0.6 2020-02-15 22:38:29 +00:00
d8f526ef2d fix(core): update 2020-02-15 22:38:28 +00:00
92b858e248 1.0.5 2020-02-14 18:10:10 +00:00
26511fc10e fix(core): update 2020-02-14 18:10:10 +00:00
1cdba38408 1.0.4 2020-02-14 17:28:14 +00:00
7a0525bd1f fix(core): update 2020-02-14 17:28:13 +00:00
a1cb632d26 1.0.3 2020-02-06 16:55:56 +00:00
47aa1681bf fix(core): update 2020-02-06 16:55:55 +00:00
29 changed files with 11044 additions and 2084 deletions

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@@ -0,0 +1,66 @@
name: Default (not tags)
on:
push:
tags-ignore:
- '**'
env:
IMAGE: code.foss.global/host.today/ht-docker-node:npmci
NPMCI_COMPUTED_REPOURL: https://${{gitea.repository_owner}}:${{secrets.GITEA_TOKEN}}@/${{gitea.repository}}.git
NPMCI_TOKEN_NPM: ${{secrets.NPMCI_TOKEN_NPM}}
NPMCI_TOKEN_NPM2: ${{secrets.NPMCI_TOKEN_NPM2}}
NPMCI_GIT_GITHUBTOKEN: ${{secrets.NPMCI_GIT_GITHUBTOKEN}}
NPMCI_URL_CLOUDLY: ${{secrets.NPMCI_URL_CLOUDLY}}
jobs:
security:
runs-on: ubuntu-latest
continue-on-error: true
container:
image: ${{ env.IMAGE }}
steps:
- uses: actions/checkout@v3
- name: Install pnpm and npmci
run: |
pnpm install -g pnpm
pnpm install -g @ship.zone/npmci
- name: Run npm prepare
run: npmci npm prepare
- name: Audit production dependencies
run: |
npmci command npm config set registry https://registry.npmjs.org
npmci command pnpm audit --audit-level=high --prod
continue-on-error: true
- name: Audit development dependencies
run: |
npmci command npm config set registry https://registry.npmjs.org
npmci command pnpm audit --audit-level=high --dev
continue-on-error: true
test:
if: ${{ always() }}
needs: security
runs-on: ubuntu-latest
container:
image: ${{ env.IMAGE }}
steps:
- uses: actions/checkout@v3
- name: Test stable
run: |
npmci node install stable
npmci npm install
npmci npm test
- name: Test build
run: |
npmci node install stable
npmci npm install
npmci npm build

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@@ -0,0 +1,124 @@
name: Default (tags)
on:
push:
tags:
- '*'
env:
IMAGE: code.foss.global/host.today/ht-docker-node:npmci
NPMCI_COMPUTED_REPOURL: https://${{gitea.repository_owner}}:${{secrets.GITEA_TOKEN}}@/${{gitea.repository}}.git
NPMCI_TOKEN_NPM: ${{secrets.NPMCI_TOKEN_NPM}}
NPMCI_TOKEN_NPM2: ${{secrets.NPMCI_TOKEN_NPM2}}
NPMCI_GIT_GITHUBTOKEN: ${{secrets.NPMCI_GIT_GITHUBTOKEN}}
NPMCI_URL_CLOUDLY: ${{secrets.NPMCI_URL_CLOUDLY}}
jobs:
security:
runs-on: ubuntu-latest
continue-on-error: true
container:
image: ${{ env.IMAGE }}
steps:
- uses: actions/checkout@v3
- name: Prepare
run: |
pnpm install -g pnpm
pnpm install -g @ship.zone/npmci
npmci npm prepare
- name: Audit production dependencies
run: |
npmci command npm config set registry https://registry.npmjs.org
npmci command pnpm audit --audit-level=high --prod
continue-on-error: true
- name: Audit development dependencies
run: |
npmci command npm config set registry https://registry.npmjs.org
npmci command pnpm audit --audit-level=high --dev
continue-on-error: true
test:
if: ${{ always() }}
needs: security
runs-on: ubuntu-latest
container:
image: ${{ env.IMAGE }}
steps:
- uses: actions/checkout@v3
- name: Prepare
run: |
pnpm install -g pnpm
pnpm install -g @ship.zone/npmci
npmci npm prepare
- name: Test stable
run: |
npmci node install stable
npmci npm install
npmci npm test
- name: Test build
run: |
npmci node install stable
npmci npm install
npmci npm build
release:
needs: test
if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
runs-on: ubuntu-latest
container:
image: ${{ env.IMAGE }}
steps:
- uses: actions/checkout@v3
- name: Prepare
run: |
pnpm install -g pnpm
pnpm install -g @ship.zone/npmci
npmci npm prepare
- name: Release
run: |
npmci node install stable
npmci npm publish
metadata:
needs: test
if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
runs-on: ubuntu-latest
container:
image: ${{ env.IMAGE }}
continue-on-error: true
steps:
- uses: actions/checkout@v3
- name: Prepare
run: |
pnpm install -g pnpm
pnpm install -g @ship.zone/npmci
npmci npm prepare
- name: Code quality
run: |
npmci command npm install -g typescript
npmci npm install
- name: Trigger
run: npmci trigger
- name: Build docs and upload artifacts
run: |
npmci node install stable
npmci npm install
pnpm install -g @git.zone/tsdoc
npmci command tsdoc
continue-on-error: true

11
.gitignore vendored
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@@ -3,7 +3,6 @@
# artifacts
coverage/
public/
pages/
# installs
node_modules/
@@ -15,8 +14,10 @@ node_modules/
# builds
dist/
dist_web/
dist_serve/
dist_ts_web/
dist_*/
# custom
# AI
.claude/
.serena/
#------# custom

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@@ -1,126 +0,0 @@
# gitzone ci_default
image: registry.gitlab.com/hosttoday/ht-docker-node:npmci
cache:
paths:
- .npmci_cache/
key: '$CI_BUILD_STAGE'
stages:
- security
- test
- release
- metadata
# ====================
# security stage
# ====================
mirror:
stage: security
script:
- npmci git mirror
tags:
- lossless
- docker
- notpriv
snyk:
image: registry.gitlab.com/hosttoday/ht-docker-node:snyk
stage: security
script:
- npmci npm prepare
- npmci command npm install --ignore-scripts
- npmci command snyk test
tags:
- lossless
- docker
- notpriv
# ====================
# test stage
# ====================
testStable:
stage: test
script:
- npmci npm prepare
- npmci node install stable
- npmci npm install
- npmci npm test
coverage: /\d+.?\d+?\%\s*coverage/
tags:
- lossless
- docker
- priv
testBuild:
stage: test
script:
- npmci npm prepare
- npmci node install stable
- npmci npm install
- npmci command npm run build
coverage: /\d+.?\d+?\%\s*coverage/
tags:
- lossless
- docker
- notpriv
release:
stage: release
script:
- npmci node install stable
- npmci npm publish
only:
- tags
tags:
- lossless
- docker
- notpriv
# ====================
# metadata stage
# ====================
codequality:
stage: metadata
allow_failure: true
script:
- npmci command npm install -g tslint typescript
- npmci npm prepare
- npmci npm install
- npmci command "tslint -c tslint.json ./ts/**/*.ts"
tags:
- lossless
- docker
- priv
trigger:
stage: metadata
script:
- npmci trigger
only:
- tags
tags:
- lossless
- docker
- notpriv
pages:
stage: metadata
script:
- npmci node install lts
- npmci command npm install -g @gitzone/tsdoc
- npmci npm prepare
- npmci npm install
- npmci command tsdoc
tags:
- lossless
- docker
- notpriv
only:
- tags
artifacts:
expire_in: 1 week
paths:
- public
allow_failure: true

24
.vscode/launch.json vendored
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@@ -2,28 +2,10 @@
"version": "0.2.0",
"configurations": [
{
"name": "current file",
"type": "node",
"command": "npm test",
"name": "Run npm test",
"request": "launch",
"args": [
"${relativeFile}"
],
"runtimeArgs": ["-r", "@gitzone/tsrun"],
"cwd": "${workspaceRoot}",
"protocol": "inspector",
"internalConsoleOptions": "openOnSessionStart"
},
{
"name": "test.ts",
"type": "node",
"request": "launch",
"args": [
"test/test.ts"
],
"runtimeArgs": ["-r", "@gitzone/tsrun"],
"cwd": "${workspaceRoot}",
"protocol": "inspector",
"internalConsoleOptions": "openOnSessionStart"
"type": "node-terminal"
}
]
}

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@@ -15,7 +15,7 @@
"properties": {
"projectType": {
"type": "string",
"enum": ["website", "element", "service", "npm"]
"enum": ["website", "element", "service", "npm", "wcc"]
}
}
}

110
changelog.md Normal file
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@@ -0,0 +1,110 @@
# Changelog
## 2025-08-28 - 3.2.0 - feat(docs)
Expand README with detailed usage/examples, update test runner and test script, and pin/bump dependencies
- Completely overhauled README: added highlights, Quick Start, advanced configuration, core operations, examples, storage tier explanations, performance tips, and API reference.
- Updated tests to use @git.zone/tstest/tapbundle (test import changed) and adjusted package.json test script to run with --verbose --logfile --timeout 60.
- Bumped/pinned dependencies: @push.rocks/smartcache -> ^1.0.18 and several packages now have explicit version ranges (e.g. @push.rocks/lik -> ^6.2.2).
- Removed devDependency on @push.rocks/tapbundle.
## 2025-08-28 - 3.1.2 - fix(core)
Update CI workflows and dependencies; apply small bugfixes and formatting improvements
- Update Gitea workflow image URL and computed repo URL to internal registry and simplified repo path
- Switch npmci install target from @shipzone/npmci to @ship.zone/npmci in CI scripts
- Bump devDependencies and dependencies to newer versions (tsbuild, tstest, tapbundle, lik, smartbucket, smartfile, smartpath, smartpromise, taskbuffer, tsclass, etc.)
- Add package metadata: homepage anchor, packageManager, bugs URL and pnpm overrides block
- Fix TypeScript formatting and signatures (consistent trailing commas, multiline parameter lists, path join argument formatting)
- Fix file system and S3 manager calls to ensure consistent path handling and argument formatting (improved encoding/consistency in disk and S3 managers)
- Correct test file syntax (object commas) to avoid runtime/parse issues
- Update .gitignore to add AI tool folders and reorganize custom section
- Add pnpm-workspace.yaml with onlyBuiltDependencies entry
## 2024-11-26 - 3.1.1 - fix(core)
Fix S3 cache manager methods for better path encoding consistency
- Corrected path parameter usage in S3 manager methods to ensure encoding and consistency.
- Updated package.json Git dependencies for scoped packages.
## 2024-11-24 - 3.1.0 - feat(core)
Enhanced caching solution with optional configurations and improved documentation.
- Improved package description and keywords for better discoverability.
- Updated dependencies to latest versions.
- Added strict type checking in TypeScript configurations.
- Enhanced README with detailed usage instructions and examples.
## 2024-05-29 to 2024-02-14 - 3.0.8
Minor configuration updates and documentation changes.
- Updated project description.
- Modified tsconfig setup.
- Adjustments to npmextra.json regarding githost.
## 2024-02-14 - 3.0.7
Core enhancements and bug fixes.
- Fixed updates in the core module to improve stability.
## 2024-02-14 - 3.0.6
Core maintenance and updates.
- Implemented minor fixes in the core module.
## 2023-07-21 - 3.0.5
Addressed core module adjustments.
- Patched core module to rectify issues.
## 2023-07-20 - 3.0.4
Further improvements to core functionality.
- Additional fixes applied to the core component.
## 2023-07-11 to 2023-07-10 - 3.0.3
Organizational and structural changes.
- Transitioned to a new organizational scheme.
## 2023-01-09 - 3.0.2
Core module corrections.
- Resolved various issues within the core module.
## 2022-06-09 - 3.0.1
Continuous enhancements in core functionality.
- Continued bug fixes for core module efficiency.
## 2022-04-04 to 2022-04-02 - 3.0.0
Major release with significant updates.
## 2022-03-22 - 2.0.0
Significant breaking changes in core tech stack.
- BREAKING CHANGE: Transitioned core module to ECMAScript Modules (ESM).
## 2021-05-10 - 1.0.9
Caching improvements and optimization.
- Enhanced caching by properly respecting TTL across all cache levels.
## 2020-02-15 to 2020-02-05 - 1.0.6 to 1.0.1
Initial series of core module fixes and updates.
- Persistent efforts to stabilize and improve core functionalities.

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@@ -2,17 +2,34 @@
"gitzone": {
"projectType": "npm",
"module": {
"githost": "gitlab.com",
"gitscope": "pushrocks",
"githost": "code.foss.global",
"gitscope": "push.rocks",
"gitrepo": "levelcache",
"shortDescription": "a cache that uses memory/disk/s3 as backup",
"npmPackagename": "@pushrocks/levelcache",
"description": "A versatile caching solution offering multi-level storage utilizing memory, disk, and Amazon S3 for efficient data management and backup.",
"npmPackagename": "@push.rocks/levelcache",
"license": "MIT",
"projectDomain": "push.rocks"
"projectDomain": "push.rocks",
"keywords": [
"caching",
"data storage",
"memory cache",
"disk cache",
"S3 storage",
"data backup",
"multi-level caching",
"performance",
"persistent storage",
"data retrieval",
"Node.js",
"TypeScript"
]
}
},
"npmci": {
"npmGlobalTools": [],
"npmAccessLevel": "public"
},
"tsdoc": {
"legal": "\n## License and Legal Information\n\nThis repository contains open-source code that is licensed under the MIT License. A copy of the MIT License can be found in the [license](license) file within this repository. \n\n**Please note:** The MIT License does not grant permission to use the trade names, trademarks, service marks, or product names of the project, except as required for reasonable and customary use in describing the origin of the work and reproducing the content of the NOTICE file.\n\n### Trademarks\n\nThis project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH and are not included within the scope of the MIT license granted herein. Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines, and any usage must be approved in writing by Task Venture Capital GmbH.\n\n### Company Information\n\nTask Venture Capital GmbH \nRegistered at District court Bremen HRB 35230 HB, Germany\n\nFor any legal inquiries or if you require further information, please contact us via email at hello@task.vc.\n\nBy using this repository, you acknowledge that you have read this section, agree to comply with its terms, and understand that the licensing of the code does not imply endorsement by Task Venture Capital GmbH of any derivative works.\n"
}
}
}

1843
package-lock.json generated

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@@ -1,41 +1,79 @@
{
"name": "@pushrocks/levelcache",
"version": "1.0.2",
"name": "@push.rocks/levelcache",
"version": "3.2.0",
"private": false,
"description": "a cache that uses memory/disk/s3 as backup",
"main": "dist/index.js",
"typings": "dist/index.d.ts",
"description": "A versatile caching solution offering multi-level storage utilizing memory, disk, and Amazon S3 for efficient data management and backup.",
"main": "dist_ts/index.js",
"typings": "dist_ts/index.d.ts",
"type": "module",
"author": "Lossless GmbH",
"license": "MIT",
"scripts": {
"test": "(tstest test/)",
"build": "(tsbuild)",
"format": "(gitzone format)"
"test": "(tstest test/ --verbose --logfile --timeout 60)",
"build": "(tsbuild --web --allowimplicitany)",
"buildDocs": "tsdoc",
"localPublish": "gitzone commit && pnpm run build && pnpm publish && pnpm publish --access public --registry=\"https://registry.npmjs.org\""
},
"devDependencies": {
"@gitzone/tsbuild": "^2.0.22",
"@gitzone/tstest": "^1.0.15",
"@pushrocks/tapbundle": "^3.0.7",
"@types/node": "^10.11.7",
"tslint": "^5.11.0",
"tslint-config-prettier": "^1.15.0"
"@git.zone/tsbuild": "^2.6.7",
"@git.zone/tsrun": "^1.2.44",
"@git.zone/tstest": "^2.3.5",
"@types/node": "^24.3.0"
},
"dependencies": {
"@pushrocks/lik": "^3.0.13",
"@pushrocks/smartbucket": "^1.0.24",
"@pushrocks/smartcache": "^1.0.13",
"@pushrocks/smartfile": "^7.0.6",
"@pushrocks/smartstring": "^3.0.18"
"@push.rocks/lik": "^6.2.2",
"@push.rocks/smartbucket": "^3.3.10",
"@push.rocks/smartcache": "^1.0.18",
"@push.rocks/smartenv": "^5.0.13",
"@push.rocks/smartexit": "^1.0.23",
"@push.rocks/smartfile": "^11.2.7",
"@push.rocks/smartjson": "^5.0.20",
"@push.rocks/smartpath": "^6.0.0",
"@push.rocks/smartpromise": "^4.2.3",
"@push.rocks/smartstring": "^4.0.15",
"@push.rocks/smartunique": "^3.0.9",
"@push.rocks/taskbuffer": "^3.1.10",
"@tsclass/tsclass": "^9.2.0"
},
"files": [
"ts/**/*",
"ts_web/**/*",
"dist/**/*",
"dist_web/**/*",
"dist_*/**/*",
"dist_ts/**/*",
"dist_ts_web/**/*",
"assets/**/*",
"cli.js",
"npmextra.json",
"readme.md"
]
],
"browserslist": [
"last 1 chrome versions"
],
"keywords": [
"caching",
"data storage",
"memory cache",
"disk cache",
"S3 storage",
"data backup",
"multi-level caching",
"performance",
"persistent storage",
"data retrieval",
"Node.js",
"TypeScript"
],
"homepage": "https://code.foss.global/push.rocks/levelcache#readme",
"repository": {
"type": "git",
"url": "https://code.foss.global/push.rocks/levelcache.git"
},
"packageManager": "pnpm@10.14.0+sha512.ad27a79641b49c3e481a16a805baa71817a04bbe06a38d17e60e2eaee83f6a146c6a688125f5792e48dd5ba30e7da52a5cda4c3992b9ccf333f9ce223af84748",
"bugs": {
"url": "https://code.foss.global/push.rocks/levelcache/issues"
},
"pnpm": {
"overrides": {}
}
}

9657
pnpm-lock.yaml generated Normal file

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4
pnpm-workspace.yaml Normal file
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@@ -0,0 +1,4 @@
onlyBuiltDependencies:
- esbuild
- mongodb-memory-server
- puppeteer

1
readme.hints.md Normal file
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@@ -0,0 +1 @@

401
readme.md
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@@ -1,32 +1,389 @@
# @pushrocks/levelcache
a cache that uses memory/disk/s3 as backup
# @push.rocks/levelcache 🚀
## Availabililty and Links
* [npmjs.org (npm package)](https://www.npmjs.com/package/@pushrocks/levelcache)
* [gitlab.com (source)](https://gitlab.com/pushrocks/levelcache)
* [github.com (source mirror)](https://github.com/pushrocks/levelcache)
* [docs (typedoc)](https://pushrocks.gitlab.io/levelcache/)
**Supercharged Multi-Level Caching for Modern Applications**
## Status for master
[![pipeline status](https://gitlab.com/pushrocks/levelcache/badges/master/pipeline.svg)](https://gitlab.com/pushrocks/levelcache/commits/master)
[![coverage report](https://gitlab.com/pushrocks/levelcache/badges/master/coverage.svg)](https://gitlab.com/pushrocks/levelcache/commits/master)
[![npm downloads per month](https://img.shields.io/npm/dm/@pushrocks/levelcache.svg)](https://www.npmjs.com/package/@pushrocks/levelcache)
[![Known Vulnerabilities](https://snyk.io/test/npm/@pushrocks/levelcache/badge.svg)](https://snyk.io/test/npm/@pushrocks/levelcache)
[![TypeScript](https://img.shields.io/badge/TypeScript->=%203.x-blue.svg)](https://nodejs.org/dist/latest-v10.x/docs/api/)
[![node](https://img.shields.io/badge/node->=%2010.x.x-blue.svg)](https://nodejs.org/dist/latest-v10.x/docs/api/)
[![JavaScript Style Guide](https://img.shields.io/badge/code%20style-prettier-ff69b4.svg)](https://prettier.io/)
A high-performance, tiered caching solution that intelligently leverages memory, disk, and S3 storage to deliver blazing-fast data access with reliable persistence and backup capabilities.
## Highlights
**Intelligent Tiered Storage** - Automatically routes data between memory, disk, and S3 based on size and access patterns
**Lightning Fast** - Memory-first architecture ensures microsecond access times for hot data
💾 **Persistent & Durable** - Optional disk and S3 layers provide data durability across restarts
🎯 **TTL Support** - Built-in time-to-live for automatic cache expiration
🔧 **TypeScript First** - Full type safety and excellent IDE support
☁️ **S3 Ready** - Seamless integration with Amazon S3 for massive scale caching
## Install
```bash
# Using npm
npm install @push.rocks/levelcache --save
# Using yarn
yarn add @push.rocks/levelcache
# Using pnpm (recommended)
pnpm add @push.rocks/levelcache
```
## Usage
Use TypeScript for best in class intellisense.
### Quick Start
## Contribution
Get up and running with just a few lines:
We are always happy for code contributions. If you are not the code contributing type that is ok. Still, maintaining Open Source repositories takes considerable time and thought. If you like the quality of what we do and our modules are useful to you we would appreciate a little monthly contribution: You can [contribute one time](https://lossless.link/contribute-onetime) or [contribute monthly](https://lossless.link/contribute). :)
```typescript
import { LevelCache, CacheEntry } from '@push.rocks/levelcache';
For further information read the linked docs at the top of this readme.
// Initialize cache with minimal config
const cache = new LevelCache({
cacheId: 'myAppCache'
});
> MIT licensed | **©** [Lossless GmbH](https://lossless.gmbh)
| By using this npm module you agree to our [privacy policy](https://lossless.gmbH/privacy)
// Wait for cache to be ready
await cache.ready;
[![repo-footer](https://lossless.gitlab.io/publicrelations/repofooter.svg)](https://maintainedby.lossless.com)
// Store data
const entry = new CacheEntry({
contents: Buffer.from('Hello Cache World! 🎉'),
ttl: 60000 // 1 minute TTL
});
await cache.storeCacheEntryByKey('greeting', entry);
// Retrieve data
const retrieved = await cache.retrieveCacheEntryByKey('greeting');
console.log(retrieved.contents.toString()); // "Hello Cache World! 🎉"
```
### Advanced Configuration
`LevelCache` offers granular control over storage tiers and behavior:
```typescript
const cache = new LevelCache({
cacheId: 'productionCache',
// Storage Limits
maxMemoryStorageInMB: 128, // 128MB RAM cache (default: 0.5)
maxDiskStorageInMB: 1024, // 1GB disk cache (default: 10)
maxS3StorageInMB: 10240, // 10GB S3 storage (optional)
// Disk Configuration
diskStoragePath: './cache-data', // Custom disk location (default: '.nogit')
// S3 Configuration (optional)
s3Config: {
accessKeyId: process.env.AWS_ACCESS_KEY_ID,
secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY,
region: 'us-east-1'
},
s3BucketName: 'my-cache-bucket',
// Behavior Options
forceLevel: 'memory', // Force specific tier (optional)
immutableCache: false, // Prevent cache mutations
persistentCache: true // Persist cache on restarts
});
```
### Core Operations
#### Storing Data
```typescript
// Store text data
const textEntry = new CacheEntry({
contents: Buffer.from('Important text data'),
ttl: 3600000, // 1 hour
typeInfo: 'text/plain' // Optional metadata
});
await cache.storeCacheEntryByKey('document:123', textEntry);
// Store JSON data
const jsonData = { user: 'john', role: 'admin' };
const jsonEntry = new CacheEntry({
contents: Buffer.from(JSON.stringify(jsonData)),
ttl: 7200000, // 2 hours
typeInfo: 'application/json'
});
await cache.storeCacheEntryByKey('user:john', jsonEntry);
// Store binary data (images, files, etc.)
const imageBuffer = await fs.readFile('./logo.png');
const imageEntry = new CacheEntry({
contents: imageBuffer,
ttl: 86400000, // 24 hours
typeInfo: 'image/png'
});
await cache.storeCacheEntryByKey('assets:logo', imageEntry);
```
#### Retrieving Data
```typescript
// Basic retrieval
const entry = await cache.retrieveCacheEntryByKey('user:john');
if (entry) {
const userData = JSON.parse(entry.contents.toString());
console.log(userData); // { user: 'john', role: 'admin' }
} else {
console.log('Cache miss or expired');
}
// Check if key exists
const exists = await cache.checkKeyPresence('user:john');
console.log(`Key exists: ${exists}`);
// Handle cache misses gracefully
async function getUser(userId: string) {
const cacheKey = `user:${userId}`;
let entry = await cache.retrieveCacheEntryByKey(cacheKey);
if (!entry) {
// Cache miss - fetch from database
const userData = await database.getUser(userId);
// Store in cache for next time
entry = new CacheEntry({
contents: Buffer.from(JSON.stringify(userData)),
ttl: 600000 // 10 minutes
});
await cache.storeCacheEntryByKey(cacheKey, entry);
}
return JSON.parse(entry.contents.toString());
}
```
#### Managing Cache
```typescript
// Delete specific entry
await cache.deleteCacheEntryByKey('user:john');
// Clean expired entries
await cache.cleanOutdated();
// Clear entire cache
await cache.cleanAll();
```
### Storage Tiers Explained
`LevelCache` automatically determines the optimal storage tier based on data size and available capacity:
#### 1. **Memory Cache** 🧠
- **Speed**: Microsecond access
- **Best for**: Frequently accessed, small data
- **Default limit**: 0.5MB (configurable)
- First tier checked for all operations
#### 2. **Disk Cache** 💾
- **Speed**: Millisecond access
- **Best for**: Medium-sized data, persistent storage needed
- **Default limit**: 10MB (configurable)
- Data survives process restarts when `persistentCache: true`
#### 3. **S3 Cache** ☁️
- **Speed**: Network latency (typically 50-200ms)
- **Best for**: Large data, long-term storage, distributed caching
- **Default limit**: 50MB (configurable)
- Requires S3 configuration
- Ideal for shared cache across multiple instances
### Real-World Use Cases
#### API Response Caching
```typescript
class ApiCache {
private cache: LevelCache;
constructor() {
this.cache = new LevelCache({
cacheId: 'apiResponses',
maxMemoryStorageInMB: 256,
maxDiskStorageInMB: 2048,
persistentCache: true
});
}
async getCachedResponse(endpoint: string, params: any) {
const cacheKey = `api:${endpoint}:${JSON.stringify(params)}`;
let cached = await this.cache.retrieveCacheEntryByKey(cacheKey);
if (cached) {
return JSON.parse(cached.contents.toString());
}
// Fetch fresh data
const response = await fetch(endpoint, { params });
const data = await response.json();
// Cache for 5 minutes
const entry = new CacheEntry({
contents: Buffer.from(JSON.stringify(data)),
ttl: 300000
});
await this.cache.storeCacheEntryByKey(cacheKey, entry);
return data;
}
}
```
#### Session Storage
```typescript
class SessionManager {
private cache: LevelCache;
constructor() {
this.cache = new LevelCache({
cacheId: 'sessions',
maxMemoryStorageInMB: 64,
maxDiskStorageInMB: 512,
immutableCache: false,
persistentCache: true
});
}
async createSession(userId: string, sessionData: any) {
const sessionId = generateSessionId();
const entry = new CacheEntry({
contents: Buffer.from(JSON.stringify({
userId,
...sessionData,
createdAt: Date.now()
})),
ttl: 86400000 // 24 hour sessions
});
await this.cache.storeCacheEntryByKey(`session:${sessionId}`, entry);
return sessionId;
}
async getSession(sessionId: string) {
const entry = await this.cache.retrieveCacheEntryByKey(`session:${sessionId}`);
return entry ? JSON.parse(entry.contents.toString()) : null;
}
async destroySession(sessionId: string) {
await this.cache.deleteCacheEntryByKey(`session:${sessionId}`);
}
}
```
#### Distributed Processing Cache
```typescript
// Share computed results across multiple workers using S3
const distributedCache = new LevelCache({
cacheId: 'mlModelResults',
maxMemoryStorageInMB: 512,
maxDiskStorageInMB: 5120,
maxS3StorageInMB: 102400, // 100GB for model outputs
s3Config: {
accessKeyId: process.env.AWS_ACCESS_KEY_ID,
secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY,
region: 'us-west-2'
},
s3BucketName: 'ml-computation-cache',
persistentCache: true
});
// Worker process can store results
async function storeComputationResult(jobId: string, result: Buffer) {
const entry = new CacheEntry({
contents: result,
ttl: 604800000, // 7 days
typeInfo: 'application/octet-stream'
});
await distributedCache.storeCacheEntryByKey(`job:${jobId}`, entry);
}
// Other workers can retrieve results
async function getComputationResult(jobId: string) {
const entry = await distributedCache.retrieveCacheEntryByKey(`job:${jobId}`);
return entry ? entry.contents : null;
}
```
### Performance Tips 🎯
1. **Size your tiers appropriately** - Set memory limits based on your hot data size
2. **Use meaningful cache keys** - Include version/hash in keys for cache invalidation
3. **Set realistic TTLs** - Balance freshness with performance
4. **Monitor cache hit rates** - Track `checkKeyPresence()` to optimize tier sizes
5. **Batch operations** - Group related cache operations when possible
6. **Use compression** - Compress large values before caching to maximize tier utilization
### Migration & Compatibility
Coming from other caching solutions? Here's how LevelCache compares:
- **Redis** → LevelCache provides similar speed with added persistence and S3 backup
- **Memcached** → LevelCache adds persistence and automatic tier management
- **Local storage** → LevelCache adds memory tier and S3 backup capabilities
- **S3 only** → LevelCache adds memory and disk tiers for dramatic speed improvements
## API Reference
### LevelCache Class
#### Constructor Options
| Option | Type | Default | Description |
|--------|------|---------|-------------|
| `cacheId` | string | required | Unique identifier for the cache instance |
| `maxMemoryStorageInMB` | number | 0.5 | Maximum memory storage in megabytes |
| `maxDiskStorageInMB` | number | 10 | Maximum disk storage in megabytes |
| `maxS3StorageInMB` | number | 50 | Maximum S3 storage in megabytes |
| `diskStoragePath` | string | '.nogit' | Path for disk cache storage |
| `s3Config` | object | undefined | AWS S3 configuration object |
| `s3BucketName` | string | undefined | S3 bucket name for cache storage |
| `forceLevel` | string | undefined | Force storage to specific tier |
| `immutableCache` | boolean | false | Prevent cache entry modifications |
| `persistentCache` | boolean | false | Persist cache across restarts |
#### Methods
| Method | Returns | Description |
|--------|---------|-------------|
| `ready` | Promise<void> | Resolves when cache is initialized |
| `storeCacheEntryByKey(key, entry)` | Promise<void> | Store a cache entry |
| `retrieveCacheEntryByKey(key)` | Promise<CacheEntry\|null> | Retrieve a cache entry |
| `checkKeyPresence(key)` | Promise<boolean> | Check if key exists |
| `deleteCacheEntryByKey(key)` | Promise<void> | Delete a cache entry |
| `cleanOutdated()` | Promise<void> | Remove expired entries |
| `cleanAll()` | Promise<void> | Clear entire cache |
### CacheEntry Class
#### Constructor Options
| Option | Type | Required | Description |
|--------|------|----------|-------------|
| `contents` | Buffer | yes | The data to cache |
| `ttl` | number | yes | Time-to-live in milliseconds |
| `typeInfo` | string | no | Optional metadata about content type |
## License and Legal Information
This repository contains open-source code that is licensed under the MIT License. A copy of the MIT License can be found in the [license](license) file within this repository.
**Please note:** The MIT License does not grant permission to use the trade names, trademarks, service marks, or product names of the project, except as required for reasonable and customary use in describing the origin of the work and reproducing the content of the NOTICE file.
### Trademarks
This project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH and are not included within the scope of the MIT license granted herein. Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines, and any usage must be approved in writing by Task Venture Capital GmbH.
### Company Information
Task Venture Capital GmbH
Registered at District court Bremen HRB 35230 HB, Germany
For any legal inquiries or if you require further information, please contact us via email at hello@task.vc.
By using this repository, you acknowledge that you have read this section, agree to comply with its terms, and understand that the licensing of the code does not imply endorsement by Task Venture Capital GmbH of any derivative works.

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@@ -1,8 +1,43 @@
import { expect, tap } from '@pushrocks/tapbundle';
import * as levelcache from '../ts/index';
import { expect, tap } from '@git.zone/tstest/tapbundle';
import * as levelcache from '../ts/index.js';
import { CacheEntry } from '../ts/index.js';
tap.test('first test', async () => {
console.log('hi');
let testLevelCache: levelcache.LevelCache;
tap.test('should create a new levelcache instance', async () => {
testLevelCache = new levelcache.LevelCache({
cacheId: 'myCache',
});
expect(testLevelCache).toBeInstanceOf(levelcache.LevelCache);
});
tap.test('should cache a value', async () => {
await testLevelCache.storeCacheEntryByKey(
'mykey',
new CacheEntry({
contents: Buffer.from('heythere'),
ttl: 10000,
typeInfo: 'string',
}),
);
const result = await testLevelCache.retrieveCacheEntryByKey('mykey');
expect(result.contents.toString()).toEqual('heythere');
});
tap.test('should respect ttl', async (tools) => {
await testLevelCache.storeCacheEntryByKey(
'mykey',
new CacheEntry({
contents: Buffer.from('heythere'),
ttl: 1000,
typeInfo: 'string',
}),
);
const result = await testLevelCache.retrieveCacheEntryByKey('mykey');
expect(result.contents.toString()).toEqual('heythere');
await tools!.delayFor(1100);
const result2 = await testLevelCache.retrieveCacheEntryByKey('mykey');
expect(result2).toBeNull();
});
tap.start();

8
ts/00_commitinfo_data.ts Normal file
View File

@@ -0,0 +1,8 @@
/**
* autocreated commitinfo by @push.rocks/commitinfo
*/
export const commitinfo = {
name: '@push.rocks/levelcache',
version: '3.2.0',
description: 'A versatile caching solution offering multi-level storage utilizing memory, disk, and Amazon S3 for efficient data management and backup.'
}

View File

@@ -1 +1,2 @@
export * from './levelcache.classes.levelcache';
export * from './levelcache.classes.levelcache.js';
export * from './levelcache.classes.cacheentry.js';

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import { CacheEntry } from './levelcache.classes.cacheentry.js';
export abstract class AbstractCache {
public abstract ready: Promise<void>;
public abstract status: 'active' | 'inactive';
// Cache Entries
/**
* store a Blob
*/
public abstract storeCacheEntryByKey(
keyArg: string,
valueArg: CacheEntry,
): Promise<void>;
/**
* retrieve cache entry
*/
public abstract retrieveCacheEntryByKey(keyArg: string): Promise<CacheEntry>;
/**
* checks for the presence of a key
* @param keyArg
*/
public abstract checkKeyPresence(keyArg: string): Promise<boolean>;
/**
* delete a key
*/
public abstract deleteCacheEntryByKey(keyArg: string): Promise<void>;
/**
* clean the cache
*/
public abstract cleanOutdated(): Promise<void>;
/**
* cleans the complete cache
*/
public abstract cleanAll(): Promise<void>;
}

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import * as plugins from './levelcache.plugins.js';
import * as paths from './levelcache.paths.js';
import { AbstractCache } from './levelcache.abstract.classes.cache.js';
import {
type ILevelCacheConstructorOptions,
LevelCache,
} from './levelcache.classes.levelcache.js';
import { CacheEntry } from './levelcache.classes.cacheentry.js';
/**
*
*/
export class CacheDiskManager extends AbstractCache {
private levelCacheRef: LevelCache;
private readyDeferred = plugins.smartpromise.defer<void>();
public ready = this.readyDeferred.promise;
public status: 'active' | 'inactive';
public fsPath: string;
public maxCacheSizeInMb: number;
constructor(levelCacheRefArg: LevelCache) {
super();
this.levelCacheRef = levelCacheRefArg;
this.init();
}
public async init() {
if (this.levelCacheRef.options.diskStoragePath) {
this.fsPath = plugins.path.join(
this.levelCacheRef.options.diskStoragePath,
this.levelCacheRef.options.cacheId,
);
} else {
this.fsPath = plugins.path.join(
paths.nogitDir,
this.levelCacheRef.options.cacheId,
);
}
if (this.status === 'active') {
plugins.smartfile.fs.ensureDirSync(this.fsPath);
}
this.readyDeferred.resolve();
}
public async retrieveCacheEntryByKey(keyArg: string): Promise<CacheEntry> {
const fileString = await plugins.smartfile.fs.toStringSync(
plugins.path.join(this.fsPath, encodeURIComponent(keyArg)),
);
return CacheEntry.fromStorageJsonString(fileString);
}
public async storeCacheEntryByKey(keyArg: string, cacheEntryArg: CacheEntry) {
await plugins.smartfile.memory.toFs(
cacheEntryArg.foldToJson(),
plugins.path.join(this.fsPath, encodeURIComponent(keyArg)),
);
}
public async checkKeyPresence(keyArg: string): Promise<boolean> {
return plugins.smartfile.fs.isFile(
plugins.path.join(this.fsPath, encodeURIComponent(keyArg)),
);
}
public async deleteCacheEntryByKey(keyArg: string) {
await plugins.smartfile.fs.remove(
plugins.path.join(this.fsPath, encodeURIComponent(keyArg)),
);
}
public async cleanOutdated() {}
public async cleanAll() {
if (this.status === 'active') {
if (plugins.smartfile.fs.isDirectory(this.fsPath)) {
await plugins.smartfile.fs.ensureEmptyDir(this.fsPath);
}
}
}
}

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import * as plugins from './levelcache.plugins.js';
import { AbstractCache } from './levelcache.abstract.classes.cache.js';
import { CacheEntry } from './levelcache.classes.cacheentry.js';
import {
type ILevelCacheConstructorOptions,
LevelCache,
} from './levelcache.classes.levelcache.js';
export class CacheMemoryManager extends AbstractCache {
private levelCacheRef: LevelCache;
private fastMap = new plugins.lik.FastMap<CacheEntry>();
private readyDeferred = plugins.smartpromise.defer<void>();
public ready = this.readyDeferred.promise;
public status: 'active' | 'inactive';
constructor(levelCacheRefArg: LevelCache) {
super();
this.levelCacheRef = levelCacheRefArg;
this.init();
}
public async init() {
this.status = 'active';
this.readyDeferred.resolve();
}
public async storeCacheEntryByKey(
keyArg: string,
cacheEntryArg: CacheEntry,
): Promise<void> {
this.fastMap.addToMap(keyArg, cacheEntryArg, { force: true });
}
public async retrieveCacheEntryByKey(keyArg: string): Promise<CacheEntry> {
return this.fastMap.getByKey(keyArg);
}
public async checkKeyPresence(keyArg: string): Promise<boolean> {
if (this.fastMap.getByKey(keyArg)) {
return true;
} else {
return false;
}
}
public async deleteCacheEntryByKey(keyArg: string) {
this.fastMap.removeFromMap(keyArg);
}
public async cleanOutdated() {}
public async cleanAll() {
this.fastMap.clean();
}
}

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import * as plugins from './levelcache.plugins.js';
import { AbstractCache } from './levelcache.abstract.classes.cache.js';
import { LevelCache } from './levelcache.classes.levelcache.js';
import { CacheEntry } from './levelcache.classes.cacheentry.js';
/**
*
*/
export class CacheS3Manager extends AbstractCache {
private levelCacheRef: LevelCache;
private smartbucket: plugins.smartbucket.SmartBucket;
private s3CacheBucket: plugins.smartbucket.Bucket;
private s3CacheDir: plugins.smartbucket.Directory;
private readyDeferred = plugins.smartpromise.defer<void>();
public ready = this.readyDeferred.promise;
public status: 'active' | 'inactive';
constructor(levelCacheRefArg: LevelCache) {
super();
this.levelCacheRef = levelCacheRefArg;
this.init();
}
public async init() {
if (this.levelCacheRef.options.s3Config) {
this.smartbucket = new plugins.smartbucket.SmartBucket(
this.levelCacheRef.options.s3Config,
);
this.s3CacheBucket = await this.smartbucket.getBucketByName('');
this.s3CacheDir = await (
await this.s3CacheBucket.getBaseDirectory()
).getSubDirectoryByName(this.levelCacheRef.options.cacheId);
if (this.levelCacheRef.options.maxS3StorageInMB) {
console.log(
`cache level S3 activated with ${this.levelCacheRef.options.maxS3StorageInMB}`,
);
} else {
console.log(
`s3 cache started without limit. Automatically applying timebox of 1 month`,
);
}
this.status = 'active';
} else {
this.status = 'inactive';
}
this.readyDeferred.resolve();
}
public async retrieveCacheEntryByKey(keyArg: string): Promise<CacheEntry> {
const jsonFileString = (
await this.s3CacheDir.fastGet({
path: encodeURIComponent(keyArg),
})
).toString();
const cacheEntry = CacheEntry.fromStorageJsonString(jsonFileString);
return cacheEntry;
}
public async storeCacheEntryByKey(keyArg: string, cacheEntryArg: CacheEntry) {
await this.s3CacheDir.fastPut({
path: encodeURIComponent(keyArg),
contents: cacheEntryArg.toStorageJsonString(),
});
}
public async checkKeyPresence(keyArg: string): Promise<boolean> {
const files = await this.s3CacheDir.listFiles();
for (const file of files) {
if (file.name === keyArg) {
return true;
}
}
return false;
}
public async deleteCacheEntryByKey(keyArg: string) {
if (this.status === 'active') {
await this.s3CacheDir.fastRemove({
path: encodeURIComponent(keyArg),
});
}
}
/**
* clean outdated
*/
public async cleanOutdated() {}
public async cleanAll() {
await this.s3CacheDir.delete({
mode: 'permanent',
});
}
}

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@@ -1 +1,44 @@
import * as plugins from './levelcache.plugins';
import * as plugins from './levelcache.plugins.js';
export interface ICacheEntryConstructorOptions {
key?: string;
ttl: number;
typeInfo?: string;
contents: Buffer;
}
/**
* a CacheEntry
*/
export class CacheEntry
extends plugins.smartjson.Smartjson
implements ICacheEntryConstructorOptions
{
public static fromStorageJsonString(storageJsonString: string) {
return new CacheEntry(plugins.smartjson.parse(storageJsonString));
}
@plugins.smartjson.foldDec()
public key: string;
@plugins.smartjson.foldDec()
public ttl: number;
@plugins.smartjson.foldDec()
public createdAt: number;
@plugins.smartjson.foldDec()
public typeInfo: string;
@plugins.smartjson.foldDec()
contents: Buffer;
public toStorageJsonString(): string {
return this.foldToJson();
}
constructor(optionsArg: ICacheEntryConstructorOptions) {
super();
Object.assign(this, optionsArg);
}
}

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import * as plugins from './levelcache.plugins.js';
import { LevelCache } from './levelcache.classes.levelcache.js';
import { AbstractCache } from './levelcache.abstract.classes.cache.js';
import { CacheEntry } from './levelcache.classes.cacheentry.js';
export class CacheRouter {
public levelCacheRef: LevelCache;
public cacheKeyMap = new plugins.lik.FastMap<AbstractCache>();
constructor(levelCacheRef: LevelCache) {
this.levelCacheRef = levelCacheRef;
}
/**
* gets the relevant cache to perform a store action on
*/
async getCacheForStoreAction(
keyArg: string,
cacheEntry: CacheEntry,
): Promise<AbstractCache> {
let returnCache: AbstractCache;
const mbToBytesMultiplier = 1000 * 1000;
const maxMemoryBytes =
this.levelCacheRef.options.maxMemoryStorageInMB * mbToBytesMultiplier;
const maxDiskBytes =
this.levelCacheRef.options.maxDiskStorageInMB * mbToBytesMultiplier;
const maxS3Bytes =
this.levelCacheRef.options.maxS3StorageInMB * mbToBytesMultiplier;
switch (true) {
case cacheEntry.contents.byteLength <= maxMemoryBytes &&
this.levelCacheRef.cacheMemoryManager.status === 'active':
returnCache = this.levelCacheRef.cacheMemoryManager;
break;
case this.levelCacheRef.cacheDiskManager.status === 'active' &&
cacheEntry.contents.byteLength > maxMemoryBytes &&
cacheEntry.contents.byteLength <= maxDiskBytes &&
this.levelCacheRef.cacheDiskManager.status === 'active':
returnCache = this.levelCacheRef.cacheDiskManager;
break;
case cacheEntry.contents.byteLength > maxDiskBytes &&
cacheEntry.contents.byteLength < maxS3Bytes &&
this.levelCacheRef.cacheS3Manager.status === 'active':
returnCache = this.levelCacheRef.cacheS3Manager;
break;
default:
returnCache = null;
}
this.cacheKeyMap.addToMap(keyArg, returnCache);
return returnCache;
}
/**
* gets the relevant cache to perform a retrieval action on
*/
async getCacheForRetrieveAction(keyArg: string): Promise<AbstractCache> {
const done = plugins.smartpromise.defer<AbstractCache>();
const returnCache = this.cacheKeyMap.getByKey(keyArg);
if (!returnCache && this.levelCacheRef.options.persistentCache) {
const checkCache = (cacheArg: AbstractCache) => {
const resultPromise = cacheArg.checkKeyPresence(keyArg);
resultPromise.then((hasKeyArg) => {
if (hasKeyArg) {
done.resolve(cacheArg);
}
});
return resultPromise;
};
Promise.all([
checkCache(this.levelCacheRef.cacheMemoryManager),
checkCache(this.levelCacheRef.cacheDiskManager),
checkCache(this.levelCacheRef.cacheMemoryManager),
]).then(() => {
done.resolve(returnCache);
});
} else {
done.resolve(returnCache);
}
return done.promise;
}
}

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@@ -1,14 +1,128 @@
import * as plugins from './levelcache.plugins';
import * as plugins from './levelcache.plugins.js';
import { CacheDiskManager } from './levelcache.classes.cache.diskmanager.js';
import { CacheMemoryManager } from './levelcache.classes.cache.memorymanager.js';
import { CacheS3Manager } from './levelcache.classes.cache.s3manager.js';
import { CacheEntry } from './levelcache.classes.cacheentry.js';
import { CacheRouter } from './levelcache.classes.cacherouter.js';
import { AbstractCache } from './levelcache.abstract.classes.cache.js';
export interface ILevelCacheConstructorOptions {
/**
* a unique id when having more than one cache
*/
cacheId: string;
maxMemoryStorageInMB?: number;
maxDiskStorageInMB?: number;
maxS3StorageInMB?: number;
diskStoragePath?: string;
s3Config?: plugins.tsclass.storage.IS3Descriptor;
s3BucketName?: string;
forceLevel?: 'memory' | 'disk' | 's3';
expirationInMs?: number;
immutableCache?: boolean;
persistentCache?: boolean;
}
/**
* a leveled cache for storing things for a short time
*/
export class LevelCache {
public cacheMap = new plugins.lik.Stringmap();
export class LevelCache extends AbstractCache {
private readyDeferred = plugins.smartpromise.defer<void>();
public async storeBlob () {}
public ready = this.readyDeferred.promise;
public async retrieveBlob () {}
public status: 'active' = 'active'; // artifact of AbstractCache
public clean() {}
public cacheRouter = new CacheRouter(this);
public cacheDiskManager: CacheDiskManager;
public cacheMemoryManager: CacheMemoryManager;
public cacheS3Manager: CacheS3Manager;
public options: ILevelCacheConstructorOptions;
constructor(optionsArg: ILevelCacheConstructorOptions) {
super();
this.options = {
maxMemoryStorageInMB: 0.5,
maxDiskStorageInMB: 10,
maxS3StorageInMB: 50,
...optionsArg,
};
this.init();
}
public async init() {
this.cacheMemoryManager = new CacheMemoryManager(this);
this.cacheDiskManager = new CacheDiskManager(this);
this.cacheS3Manager = new CacheS3Manager(this);
await Promise.all([
this.cacheDiskManager.ready,
this.cacheMemoryManager.ready,
this.cacheS3Manager.ready,
]);
this.readyDeferred.resolve();
}
// store things
public async storeCacheEntryByKey(
keyArg: string,
cacheEntryArg: CacheEntry,
): Promise<void> {
cacheEntryArg.key = keyArg;
const targetCache = await this.cacheRouter.getCacheForStoreAction(
keyArg,
cacheEntryArg,
);
cacheEntryArg.createdAt = Date.now();
await targetCache.storeCacheEntryByKey(keyArg, cacheEntryArg);
}
// retrieve things
/**
* retrieve cache entry
*/
public async retrieveCacheEntryByKey(keyArg: string): Promise<CacheEntry> {
const targetCache =
await this.cacheRouter.getCacheForRetrieveAction(keyArg);
if (targetCache) {
const cacheEntry = await targetCache.retrieveCacheEntryByKey(keyArg);
if (cacheEntry.createdAt + cacheEntry.ttl < Date.now()) {
await this.deleteCacheEntryByKey(keyArg).catch();
return null;
}
return cacheEntry;
} else {
return null;
}
}
public async checkKeyPresence(keyArg: string): Promise<boolean> {
return plugins.smartpromise.getFirstTrueOrFalse([
this.cacheMemoryManager.checkKeyPresence(keyArg),
this.cacheDiskManager.checkKeyPresence(keyArg),
this.cacheS3Manager.checkKeyPresence(keyArg),
]);
}
public async deleteCacheEntryByKey(keyArg) {
await Promise.all([
this.cacheMemoryManager.deleteCacheEntryByKey(keyArg),
this.cacheDiskManager.deleteCacheEntryByKey(keyArg),
this.cacheS3Manager.deleteCacheEntryByKey(keyArg),
]);
}
// cache maintenance
public async cleanOutdated() {}
/**
* cleans the complete cache
*/
public async cleanAll(): Promise<void> {
await Promise.all([
this.cacheDiskManager.cleanAll(),
this.cacheDiskManager.cleanAll(),
this.cacheS3Manager.cleanAll(),
]);
}
}

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@@ -0,0 +1,7 @@
import * as plugins from './levelcache.plugins.js';
export const packageDir = plugins.path.join(
plugins.smartpath.get.dirnameFromImportMetaUrl(import.meta.url),
'../',
);
export const nogitDir = plugins.path.join(packageDir, '.nogit/');

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@@ -1,21 +1,34 @@
// node native scope
import * as path from 'path';
export {
path
}
export { path };
// @pushrocks scope
import * as lik from '@pushrocks/lik';
import * as smartbucket from '@pushrocks/smartbucket';
import * as smartcache from '@pushrocks/smartcache';
import * as smartfile from '@pushrocks/smartfile';
import * as smartstring from '@pushrocks/smartstring';
// @push.rocks scope
import * as lik from '@push.rocks/lik';
import * as smartbucket from '@push.rocks/smartbucket';
import * as smartcache from '@push.rocks/smartcache';
import * as smartfile from '@push.rocks/smartfile';
import * as smartjson from '@push.rocks/smartjson';
import * as smartpath from '@push.rocks/smartpath';
import * as smartpromise from '@push.rocks/smartpromise';
import * as smartstring from '@push.rocks/smartstring';
import * as smartunique from '@push.rocks/smartunique';
import * as taskbuffer from '@push.rocks/taskbuffer';
export {
lik,
smartbucket,
smartcache,
smartfile,
smartstring
smartjson,
smartpath,
smartpromise,
smartstring,
smartunique,
taskbuffer,
};
// @tsclass scope
import * as tsclass from '@tsclass/tsclass';
export { tsclass };

14
tsconfig.json Normal file
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@@ -0,0 +1,14 @@
{
"compilerOptions": {
"experimentalDecorators": true,
"useDefineForClassFields": false,
"target": "ES2022",
"module": "NodeNext",
"moduleResolution": "NodeNext",
"esModuleInterop": true,
"verbatimModuleSyntax": true,
"baseUrl": ".",
"paths": {}
},
"exclude": ["dist_*/**/*.d.ts"]
}

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@@ -1,17 +0,0 @@
{
"extends": ["tslint:latest", "tslint-config-prettier"],
"rules": {
"semicolon": [true, "always"],
"no-console": false,
"ordered-imports": false,
"object-literal-sort-keys": false,
"member-ordering": {
"options":{
"order": [
"static-method"
]
}
}
},
"defaultSeverity": "warning"
}