Merge branch 'master' into 2947-refactor-the-existing-sendcoins-resolver-methode-to-distingue-between-local-transaction-and-x-transaction

2026-02-06 09:56:05 +00:00 · 2023-09-06 17:06:35 +02:00 · 2023-09-06 17:06:35 +02:00 · 5aa886121c
commit 5aa886121c
parent 014a9067ea e8d6977595
45 changed files with 15019 additions and 5 deletions
--- a/.github/workflows/lint_pr.yml
+++ b/.github/workflows/lint_pr.yml
@ -27,6 +27,7 @@ jobs:
            frontend
            admin
            database
+            dlt-database
            release
            federation
            dht
--- a/backend/src/graphql/resolver/CommunityResolver.test.ts
+++ b/backend/src/graphql/resolver/CommunityResolver.test.ts
@ -294,7 +294,7 @@ describe('CommunityResolver', () => {
      })
    })

-    describe('with several community entries', () => {
+    describe('returns 2 filtered communities even with 3 existing entries', () => {
      beforeEach(async () => {
        await cleanDB()
        jest.clearAllMocks()
@ -316,8 +316,8 @@ describe('CommunityResolver', () => {
        foreignCom1.url = 'http://stage-2.gradido.net/api'
        foreignCom1.publicKey = Buffer.from('publicKey-stage-2_Community')
        foreignCom1.privateKey = Buffer.from('privateKey-stage-2_Community')
-        foreignCom1.communityUuid = 'Stage2-Com-UUID'
-        foreignCom1.authenticatedAt = new Date()
+        // foreignCom1.communityUuid = 'Stage2-Com-UUID'
+        // foreignCom1.authenticatedAt = new Date()
        foreignCom1.name = 'Stage-2_Community-name'
        foreignCom1.description = 'Stage-2_Community-description'
        foreignCom1.creationDate = new Date()
@ -336,7 +336,7 @@ describe('CommunityResolver', () => {
        await DbCommunity.insert(foreignCom2)
      })

-      it('returns 3 community entries', async () => {
+      it('returns 2 community entries', async () => {
        await expect(query({ query: communities })).resolves.toMatchObject({
          data: {
            communities: [
@ -350,6 +350,7 @@ describe('CommunityResolver', () => {
                uuid: homeCom1.communityUuid,
                authenticatedAt: homeCom1.authenticatedAt?.toISOString(),
              },
+              /*
              {
                id: expect.any(Number),
                foreign: foreignCom1.foreign,
@ -360,6 +361,7 @@ describe('CommunityResolver', () => {
                uuid: foreignCom1.communityUuid,
                authenticatedAt: foreignCom1.authenticatedAt?.toISOString(),
              },
+              */
              {
                id: expect.any(Number),
                foreign: foreignCom2.foreign,
--- a/backend/src/graphql/resolver/CommunityResolver.ts
+++ b/backend/src/graphql/resolver/CommunityResolver.ts
@ -1,3 +1,4 @@
+import { IsNull, Not } from '@dbTools/typeorm'
 import { Community as DbCommunity } from '@entity/Community'
 import { FederatedCommunity as DbFederatedCommunity } from '@entity/FederatedCommunity'
 import { Resolver, Query, Authorized } from 'type-graphql'
@ -28,6 +29,7 @@ export class CommunityResolver {
  @Query(() => [Community])
  async communities(): Promise<Community[]> {
    const dbCommunities: DbCommunity[] = await DbCommunity.find({
+      where: { communityUuid: Not(IsNull()) }, //, authenticatedAt: Not(IsNull()) },
      order: {
        name: 'ASC',
      },
--- a/dlt-database/.env.dist
+++ b/dlt-database/.env.dist
@ -0,0 +1,6 @@
+DB_HOST=localhost
+DB_PORT=3306
+DB_USER=root
+DB_PASSWORD=
+DB_DATABASE=gradido_dlt
+MIGRATIONS_TABLE=migrations
--- a/dlt-database/.env.template
+++ b/dlt-database/.env.template
@ -0,0 +1,8 @@
+CONFIG_VERSION=$DATABASE_CONFIG_VERSION
+
+DB_HOST=localhost
+DB_PORT=3306
+DB_USER=$DB_USER
+DB_PASSWORD=$DB_PASSWORD
+DB_DATABASE=gradido_dlt
+MIGRATIONS_TABLE=migrations
--- a/dlt-database/.eslintignore
+++ b/dlt-database/.eslintignore
@ -0,0 +1,3 @@
+node_modules
+**/*.min.js
+build
--- a/dlt-database/.eslintrc.js
+++ b/dlt-database/.eslintrc.js
@ -0,0 +1,206 @@
+// eslint-disable-next-line import/no-commonjs, import/unambiguous
+module.exports = {
+  root: true,
+  env: {
+    node: true,
+  },
+  parser: '@typescript-eslint/parser',
+  plugins: ['prettier', '@typescript-eslint', 'import', 'n', 'promise'],
+  extends: [
+    'standard',
+    'eslint:recommended',
+    'plugin:prettier/recommended',
+    'plugin:import/recommended',
+    'plugin:import/typescript',
+    // 'plugin:security/recommended',
+    'plugin:@eslint-community/eslint-comments/recommended',
+  ],
+  settings: {
+    'import/parsers': {
+      '@typescript-eslint/parser': ['.ts', '.tsx'],
+    },
+    'import/resolver': {
+      typescript: {
+        project: ['./tsconfig.json'],
+      },
+      node: true,
+    },
+  },
+  rules: {
+    'no-console': 'error',
+    camelcase: 'error',
+    'no-debugger': 'error',
+    'prettier/prettier': [
+      'error',
+      {
+        htmlWhitespaceSensitivity: 'ignore',
+      },
+    ],
+    // import
+    'import/export': 'error',
+    'import/no-deprecated': 'error',
+    'import/no-empty-named-blocks': 'error',
+    // 'import/no-extraneous-dependencies': 'error',
+    'import/no-mutable-exports': 'error',
+    'import/no-unused-modules': 'error',
+    'import/no-named-as-default': 'error',
+    'import/no-named-as-default-member': 'error',
+    'import/no-amd': 'error',
+    'import/no-commonjs': 'error',
+    'import/no-import-module-exports': 'error',
+    'import/no-nodejs-modules': 'off',
+    'import/unambiguous': 'error',
+    'import/default': 'error',
+    'import/named': 'error',
+    'import/namespace': 'error',
+    'import/no-absolute-path': 'error',
+    // 'import/no-cycle': 'error',
+    'import/no-dynamic-require': 'error',
+    'import/no-internal-modules': 'off',
+    'import/no-relative-packages': 'error',
+    // 'import/no-relative-parent-imports': ['error', { ignore: ['@/*'] }],
+    'import/no-self-import': 'error',
+    'import/no-unresolved': 'error',
+    'import/no-useless-path-segments': 'error',
+    'import/no-webpack-loader-syntax': 'error',
+    'import/consistent-type-specifier-style': 'error',
+    'import/exports-last': 'off',
+    'import/extensions': 'error',
+    'import/first': 'error',
+    'import/group-exports': 'off',
+    'import/newline-after-import': 'error',
+    'import/no-anonymous-default-export': 'error',
+    'import/no-default-export': 'error',
+    'import/no-duplicates': 'error',
+    'import/no-named-default': 'error',
+    'import/no-namespace': 'error',
+    'import/no-unassigned-import': 'error',
+    // 'import/order': [
+    //    'error',
+    //    {
+    //      groups: ['builtin', 'external', 'internal', 'parent', 'sibling', 'index', 'object', 'type'],
+    //      'newlines-between': 'always',
+    //      pathGroups: [
+    //        {
+    //          pattern: '@?*/**',
+    //          group: 'external',
+    //          position: 'after',
+    //        },
+    //        {
+    //          pattern: '@/**',
+    //          group: 'external',
+    //          position: 'after',
+    //        },
+    //      ],
+    //      alphabetize: {
+    //        order: 'asc' /* sort in ascending order. Options: ['ignore', 'asc', 'desc'] */,
+    //        caseInsensitive: true /* ignore case. Options: [true, false] */,
+    //     },
+    //     distinctGroup: true,
+    //   },
+    // ],
+    'import/prefer-default-export': 'off',
+    // n
+    'n/handle-callback-err': 'error',
+    'n/no-callback-literal': 'error',
+    'n/no-exports-assign': 'error',
+    // 'n/no-extraneous-import': 'error',
+    'n/no-extraneous-require': 'error',
+    'n/no-hide-core-modules': 'error',
+    'n/no-missing-import': 'off', // not compatible with typescript
+    'n/no-missing-require': 'error',
+    'n/no-new-require': 'error',
+    'n/no-path-concat': 'error',
+    // 'n/no-process-exit': 'error',
+    'n/no-unpublished-bin': 'error',
+    'n/no-unpublished-import': 'off', // TODO need to exclude seeds
+    'n/no-unpublished-require': 'error',
+    'n/no-unsupported-features': ['error', { ignores: ['modules'] }],
+    'n/no-unsupported-features/es-builtins': 'error',
+    'n/no-unsupported-features/es-syntax': 'error',
+    'n/no-unsupported-features/node-builtins': 'error',
+    'n/process-exit-as-throw': 'error',
+    'n/shebang': 'error',
+    'n/callback-return': 'error',
+    'n/exports-style': 'error',
+    'n/file-extension-in-import': 'off',
+    'n/global-require': 'error',
+    'n/no-mixed-requires': 'error',
+    'n/no-process-env': 'error',
+    'n/no-restricted-import': 'error',
+    'n/no-restricted-require': 'error',
+    // 'n/no-sync': 'error',
+    'n/prefer-global/buffer': 'error',
+    'n/prefer-global/console': 'error',
+    'n/prefer-global/process': 'error',
+    'n/prefer-global/text-decoder': 'error',
+    'n/prefer-global/text-encoder': 'error',
+    'n/prefer-global/url': 'error',
+    'n/prefer-global/url-search-params': 'error',
+    'n/prefer-promises/dns': 'error',
+    // 'n/prefer-promises/fs': 'error',
+    // promise
+    // 'promise/catch-or-return': 'error',
+    // 'promise/no-return-wrap': 'error',
+    // 'promise/param-names': 'error',
+    // 'promise/always-return': 'error',
+    // 'promise/no-native': 'off',
+    // 'promise/no-nesting': 'warn',
+    // 'promise/no-promise-in-callback': 'warn',
+    // 'promise/no-callback-in-promise': 'warn',
+    // 'promise/avoid-new': 'warn',
+    // 'promise/no-new-statics': 'error',
+    // 'promise/no-return-in-finally': 'warn',
+    // 'promise/valid-params': 'warn',
+    // 'promise/prefer-await-to-callbacks': 'error',
+    // 'promise/no-multiple-resolved': 'error',
+    // eslint comments
+    '@eslint-community/eslint-comments/disable-enable-pair': ['error', { allowWholeFile: true }],
+    '@eslint-community/eslint-comments/no-restricted-disable': 'error',
+    '@eslint-community/eslint-comments/no-use': 'off',
+    '@eslint-community/eslint-comments/require-description': 'off',
+  },
+  overrides: [
+    // only for ts files
+    {
+      files: ['*.ts', '*.tsx'],
+      extends: [
+        // 'plugin:@typescript-eslint/recommended',
+        // 'plugin:@typescript-eslint/recommended-requiring-type-checking',
+        // 'plugin:@typescript-eslint/strict',
+      ],
+      rules: {
+        // allow explicitly defined dangling promises
+        // '@typescript-eslint/no-floating-promises': ['error', { ignoreVoid: true }],
+        'no-void': ['error', { allowAsStatement: true }],
+        // ignore prefer-regexp-exec rule to allow string.match(regex)
+        '@typescript-eslint/prefer-regexp-exec': 'off',
+        // this should not run on ts files: https://github.com/import-js/eslint-plugin-import/issues/2215#issuecomment-911245486
+        'import/unambiguous': 'off',
+        // this is not compatible with typeorm, due to joined tables can be null, but are not defined as nullable
+        '@typescript-eslint/no-unnecessary-condition': 'off',
+      },
+      parserOptions: {
+        tsconfigRootDir: __dirname,
+        project: ['./tsconfig.json'],
+        // this is to properly reference the referenced project database without requirement of compiling it
+        // eslint-disable-next-line camelcase
+        EXPERIMENTAL_useSourceOfProjectReferenceRedirect: true,
+      },
+    },
+    // we do not have testing on the database
+    // {
+    //   files: ['*.test.ts'],
+    //   plugins: ['jest'],
+    //   rules: {
+    //     'jest/no-disabled-tests': 'error',
+    //     'jest/no-focused-tests': 'error',
+    //     'jest/no-identical-title': 'error',
+    //     'jest/prefer-to-have-length': 'error',
+    //     'jest/valid-expect': 'error',
+    //     '@typescript-eslint/unbound-method': 'off',
+    //     'jest/unbound-method': 'error',
+    //   },
+    // },
+  ],
+}
--- a/dlt-database/.gitignore
+++ b/dlt-database/.gitignore
@ -0,0 +1,27 @@
+.DS_Store
+node_modules/
+build/
+.cache/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+test/unit/coverage
+
+package-lock.json
+/.env
+/.env.bak
+.env.development.local
+.env.production.local
+
+# Editor directories and files
+.idea
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+
+# coverage folder
+
+coverage/
+
+*~
--- a/dlt-database/.prettierrc.js
+++ b/dlt-database/.prettierrc.js
@ -0,0 +1,9 @@
+module.exports = {
+  semi: false,
+  printWidth: 100,
+  singleQuote: true,
+  trailingComma: "all",
+  tabWidth: 2,
+  bracketSpacing: true,
+  endOfLine: "auto",
+};
--- a/dlt-database/Dockerfile
+++ b/dlt-database/Dockerfile
@ -0,0 +1,130 @@
+##################################################################################
+# BASE ###########################################################################
+##################################################################################
+FROM node:18.7.0-alpine3.16 as base
+
+# ENVs (available in production aswell, can be overwritten by commandline or env file)
+## DOCKER_WORKDIR would be a classical ARG, but that is not multi layer persistent - shame
+ENV DOCKER_WORKDIR="/app"
+## We Cannot do `$(date -u +'%Y-%m-%dT%H:%M:%SZ')` here so we use unix timestamp=0
+ENV BUILD_DATE="1970-01-01T00:00:00.00Z"
+## We cannot do $(npm run version).${BUILD_NUMBER} here so we default to 0.0.0.0
+ENV BUILD_VERSION="0.0.0.0"
+## We cannot do `$(git rev-parse --short HEAD)` here so we default to 0000000
+ENV BUILD_COMMIT="0000000"
+## SET NODE_ENV
+ENV NODE_ENV="production"
+
+# Labels
+LABEL org.label-schema.build-date="${BUILD_DATE}"
+LABEL org.label-schema.name="gradido:database"
+LABEL org.label-schema.description="Gradido Database Migration Service"
+LABEL org.label-schema.usage="https://github.com/gradido/gradido/blob/master/README.md"
+LABEL org.label-schema.url="https://gradido.net"
+LABEL org.label-schema.vcs-url="https://github.com/gradido/gradido/tree/master/database"
+LABEL org.label-schema.vcs-ref="${BUILD_COMMIT}"
+LABEL org.label-schema.vendor="Gradido Community"
+LABEL org.label-schema.version="${BUILD_VERSION}"
+LABEL org.label-schema.schema-version="1.0"
+LABEL maintainer="support@gradido.net"
+
+# Install Additional Software
+## install: git
+#RUN apk --no-cache add git
+
+## Workdir
+RUN mkdir -p ${DOCKER_WORKDIR}
+WORKDIR ${DOCKER_WORKDIR}
+
+##################################################################################
+# DEVELOPMENT (Connected to the local environment, to reload on demand) ##########
+##################################################################################
+FROM base as development
+
+# We don't need to copy or build anything since we gonna bind to the
+# local filesystem which will need a rebuild anyway
+
+# Run command
+# (for development we need to execute npm install since the
+#  node_modules are on another volume and need updating)
+CMD /bin/sh -c "yarn install"
+
+##################################################################################
+# BUILD (Does contain all files and is therefore bloated) ########################
+##################################################################################
+FROM base as build
+
+# Copy everything
+COPY . .
+# npm install
+RUN yarn install --production=false --frozen-lockfile --non-interactive
+# npm build
+RUN yarn run build
+
+##################################################################################
+# TEST UP ########################################################################
+##################################################################################
+FROM build as test_up
+
+# Run command
+CMD /bin/sh -c "yarn install && yarn run dev_up"
+
+##################################################################################
+# TEST RESET #####################################################################
+##################################################################################
+FROM build as test_reset
+
+# Run command
+CMD /bin/sh -c "yarn install && yarn run dev_reset"
+
+##################################################################################
+# TEST DOWN ######################################################################
+##################################################################################
+FROM build as test_down
+
+# Run command
+CMD /bin/sh -c "yarn install && yarn run dev_down"
+
+##################################################################################
+# PRODUCTION (Does contain only "binary"- and static-files to reduce image size) #
+##################################################################################
+FROM base as production
+
+# Copy "binary"-files from build image
+COPY --from=build ${DOCKER_WORKDIR}/build ./build
+# We also copy the node_modules express and serve-static for the run script
+COPY --from=build ${DOCKER_WORKDIR}/node_modules ./node_modules
+# Copy static files
+# COPY --from=build ${DOCKER_WORKDIR}/public ./public
+# Copy package.json for script definitions (lock file should not be needed)
+COPY --from=build ${DOCKER_WORKDIR}/package.json ./package.json
+# Copy Mnemonic files
+COPY --from=build ${DOCKER_WORKDIR}/src/config/*.txt ./src/config/
+# Copy log folder
+COPY --from=build ${DOCKER_WORKDIR}/log ./log
+# Copy run scripts run/
+# COPY --from=build ${DOCKER_WORKDIR}/run ./run
+
+##################################################################################
+# PRODUCTION UP ##################################################################
+##################################################################################
+FROM production as production_up
+
+# Run command
+CMD /bin/sh -c "yarn run up"
+
+##################################################################################
+# PRODUCTION RESET ###############################################################
+##################################################################################
+FROM production as production_reset
+
+# Run command
+CMD /bin/sh -c "yarn run reset"
+
+##################################################################################
+# PRODUCTION DOWN ################################################################
+##################################################################################
+FROM production as production_down
+
+# Run command
+CMD /bin/sh -c "yarn run down"
--- a/dlt-database/README.md
+++ b/dlt-database/README.md
@ -0,0 +1,39 @@
+# database
+
+## Project setup
+
+```bash
+yarn install
+```
+
+## Upgrade migrations production
+
+```bash
+yarn up
+```
+
+## Upgrade migrations development
+
+```bash
+yarn dev_up
+```
+
+## Downgrade migrations production
+
+```bash
+yarn down
+```
+
+## Downgrade migrations development
+
+```bash
+yarn dev_down
+```
+
+## Reset database
+
+```bash
+yarn dev_reset
+```
+
+Runs all down migrations and after this all up migrations.
--- a/dlt-database/entity/0001-init_db/Account.ts
+++ b/dlt-database/entity/0001-init_db/Account.ts
@ -0,0 +1,79 @@
+import {
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  CreateDateColumn,
+  ManyToOne,
+  JoinColumn,
+  OneToMany,
+  ManyToMany,
+  JoinTable,
+} from 'typeorm'
+import { User } from './User'
+import { Community } from './Community'
+import { TransactionRecipe } from './TransactionRecipe'
+import { ConfirmedTransaction } from './ConfirmedTransaction'
+import { DecimalTransformer } from '../../src/typeorm/DecimalTransformer'
+import { Decimal } from 'decimal.js-light'
+
+@Entity('accounts')
+export class Account {
+  @PrimaryGeneratedColumn('increment', { unsigned: true })
+  id: number
+
+  @ManyToOne(() => User, (user) => user.accounts) // Assuming you have a User entity with 'accounts' relation
+  @JoinColumn({ name: 'user_id' })
+  user: User
+
+  // if user id is null, account belongs to community gmw or auf
+  @Column({ name: 'user_id', type: 'int', unsigned: true, nullable: true })
+  userId?: number
+
+  @Column({ name: 'derivation_index', type: 'int', unsigned: true })
+  derivationIndex: number
+
+  @Column({ name: 'derive2_pubkey', type: 'binary', length: 32, unique: true })
+  derive2Pubkey: Buffer
+
+  @Column({ type: 'tinyint', unsigned: true })
+  type: number
+
+  @CreateDateColumn({ name: 'created_at', type: 'datetime', default: () => 'CURRENT_TIMESTAMP(3)' })
+  createdAt: Date
+
+  @Column({ name: 'confirmed_at', type: 'datetime', nullable: true })
+  confirmedAt?: Date
+
+  @Column({
+    type: 'decimal',
+    precision: 40,
+    scale: 20,
+    default: 0,
+    transformer: DecimalTransformer,
+  })
+  balance: Decimal
+
+  @Column({
+    name: 'balance_date',
+    type: 'datetime',
+    default: () => 'CURRENT_TIMESTAMP(3)',
+  })
+  balanceDate: Date
+
+  @ManyToMany(() => Community, (community) => community.communityAccounts)
+  @JoinTable({
+    name: 'accounts_communities',
+    joinColumn: { name: 'account_id', referencedColumnName: 'id' },
+    inverseJoinColumn: { name: 'community_id', referencedColumnName: 'id' },
+  })
+  accountCommunities: Community[]
+
+  @OneToMany(() => TransactionRecipe, (recipe) => recipe.signingAccount)
+  transactionRecipesSigning?: TransactionRecipe[]
+
+  @OneToMany(() => TransactionRecipe, (recipe) => recipe.recipientAccount)
+  transactionRecipesRecipient?: TransactionRecipe[]
+
+  @OneToMany(() => ConfirmedTransaction, (transaction) => transaction.account)
+  confirmedTransactions?: ConfirmedTransaction[]
+}
--- a/dlt-database/entity/0001-init_db/AccountCommunity.ts
+++ b/dlt-database/entity/0001-init_db/AccountCommunity.ts
@ -0,0 +1,30 @@
+import { Entity, PrimaryGeneratedColumn, Column, ManyToOne, JoinColumn } from 'typeorm'
+
+import { Account } from './Account'
+import { Community } from './Community'
+
+@Entity('accounts_communities')
+export class AccountCommunity {
+  @PrimaryGeneratedColumn('increment', { unsigned: true })
+  id: number
+
+  @ManyToOne(() => Account, (account) => account.accountCommunities)
+  @JoinColumn({ name: 'account_id' })
+  account: Account
+
+  @Column({ name: 'account_id', type: 'int', unsigned: true })
+  accountId: number
+
+  @ManyToOne(() => Community, (community) => community.communityAccounts)
+  @JoinColumn({ name: 'community_id' })
+  community: Community
+
+  @Column({ name: 'community_id', type: 'int', unsigned: true })
+  communityId: number
+
+  @Column({ name: 'valid_from', type: 'datetime' })
+  validFrom: Date
+
+  @Column({ name: 'valid_to', type: 'datetime', nullable: true })
+  validTo?: Date
+}
--- a/dlt-database/entity/0001-init_db/Community.ts
+++ b/dlt-database/entity/0001-init_db/Community.ts
@ -0,0 +1,68 @@
+import {
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  CreateDateColumn,
+  JoinColumn,
+  OneToOne,
+  OneToMany,
+  ManyToMany,
+  JoinTable,
+} from 'typeorm'
+import { Account } from './Account'
+import { TransactionRecipe } from './TransactionRecipe'
+
+@Entity('communities')
+export class Community {
+  @PrimaryGeneratedColumn('increment', { unsigned: true })
+  id: number
+
+  @Column({ name: 'iota_topic', collation: 'utf8mb4_unicode_ci' })
+  iotaTopic: string
+
+  @Column({ name: 'root_pubkey', type: 'binary', length: 32, unique: true })
+  rootPubkey: Buffer
+
+  @Column({ name: 'root_privkey', type: 'binary', length: 32, nullable: true })
+  rootPrivkey?: Buffer
+
+  @Column({ name: 'root_chaincode', type: 'binary', length: 32, nullable: true })
+  rootChaincode?: Buffer
+
+  @Column({ type: 'tinyint', default: true })
+  foreign: boolean
+
+  @Column({ name: 'gmw_account_id', type: 'int', unsigned: true, nullable: true })
+  gmwAccountId?: number
+
+  @OneToOne(() => Account)
+  @JoinColumn({ name: 'gmw_account_id' })
+  gmwAccount?: Account
+
+  @Column({ name: 'auf_account_id', type: 'int', unsigned: true, nullable: true })
+  aufAccountId?: number
+
+  @OneToOne(() => Account)
+  @JoinColumn({ name: 'auf_account_id' })
+  aufAccount?: Account
+
+  @CreateDateColumn({ name: 'created_at', type: 'datetime', default: () => 'CURRENT_TIMESTAMP(3)' })
+  createdAt: Date
+
+  @Column({ name: 'confirmed_at', type: 'datetime', nullable: true })
+  confirmedAt?: Date
+
+  @ManyToMany(() => Account, (account) => account.accountCommunities)
+  @JoinTable({
+    name: 'accounts_communities',
+    joinColumn: { name: 'community_id', referencedColumnName: 'id' },
+    inverseJoinColumn: { name: 'account_id', referencedColumnName: 'id' },
+  })
+  communityAccounts: Account[]
+
+  @OneToMany(() => TransactionRecipe, (recipe) => recipe.senderCommunity)
+  transactionRecipesSender?: TransactionRecipe[]
+
+  @OneToMany(() => TransactionRecipe, (recipe) => recipe.recipientCommunity)
+  transactionRecipesRecipient?: TransactionRecipe[]
+}
--- a/dlt-database/entity/0001-init_db/ConfirmedTransaction.ts
+++ b/dlt-database/entity/0001-init_db/ConfirmedTransaction.ts
@ -0,0 +1,49 @@
+import { Entity, PrimaryGeneratedColumn, Column, ManyToOne, JoinColumn, OneToOne } from 'typeorm'
+import { Decimal } from 'decimal.js-light'
+
+import { DecimalTransformer } from '../../src/typeorm/DecimalTransformer'
+import { Account } from './Account'
+import { TransactionRecipe } from './TransactionRecipe'
+
+@Entity('confirmed_transactions')
+export class ConfirmedTransaction {
+  @PrimaryGeneratedColumn('increment', { unsigned: true, type: 'bigint' })
+  id: number
+
+  @OneToOne(() => TransactionRecipe, (recipe) => recipe.confirmedTransaction)
+  @JoinColumn({ name: 'transaction_recipe_id' })
+  transactionRecipe: TransactionRecipe
+
+  @Column({ name: 'transaction_recipe_id', type: 'int', unsigned: true })
+  transactionRecipeId: number
+
+  @Column({ type: 'bigint' })
+  nr: number
+
+  @Column({ type: 'binary', length: 48 })
+  runningHash: Buffer
+
+  @ManyToOne(() => Account, (account) => account.confirmedTransactions)
+  @JoinColumn({ name: 'account_id' })
+  account: Account
+
+  @Column({ name: 'account_id', type: 'int', unsigned: true })
+  accountId: number
+
+  @Column({
+    name: 'account_balance',
+    type: 'decimal',
+    precision: 40,
+    scale: 20,
+    nullable: false,
+    default: 0,
+    transformer: DecimalTransformer,
+  })
+  accountBalance: Decimal
+
+  @Column({ name: 'iota_milestone', type: 'bigint' })
+  iotaMilestone: number
+
+  @Column({ name: 'confirmed_at', type: 'datetime' })
+  confirmedAt: Date
+}
--- a/dlt-database/entity/0001-init_db/InvalidTransaction.ts
+++ b/dlt-database/entity/0001-init_db/InvalidTransaction.ts
@ -0,0 +1,10 @@
+import { Entity, PrimaryGeneratedColumn, Column } from 'typeorm'
+
+@Entity('invalid_transactions')
+export class InvalidTransaction {
+  @PrimaryGeneratedColumn('increment', { unsigned: true, type: 'bigint' })
+  id: number
+
+  @Column({ name: 'iota_message_id', type: 'binary', length: 32 })
+  iotaMessageId: Buffer
+}
--- a/dlt-database/entity/0001-init_db/TransactionRecipe.ts
+++ b/dlt-database/entity/0001-init_db/TransactionRecipe.ts
@ -0,0 +1,80 @@
+import {
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  CreateDateColumn,
+  ManyToOne,
+  OneToOne,
+  JoinColumn,
+} from 'typeorm'
+import { Decimal } from 'decimal.js-light'
+
+import { DecimalTransformer } from '../../src/typeorm/DecimalTransformer'
+import { Account } from './Account'
+import { Community } from './Community'
+import { ConfirmedTransaction } from './ConfirmedTransaction'
+
+@Entity('transaction_recipes')
+export class TransactionRecipe {
+  @PrimaryGeneratedColumn('increment', { unsigned: true, type: 'bigint' })
+  id: number
+
+  @Column({ name: 'iota_message_id', type: 'binary', length: 32, nullable: true })
+  iotaMessageId?: Buffer
+
+  // if transaction has a sender than it is also the sender account
+  @ManyToOne(() => Account, (account) => account.transactionRecipesSigning)
+  @JoinColumn({ name: 'signing_account_id' })
+  signingAccount: Account
+
+  @Column({ name: 'signing_account_id', type: 'int', unsigned: true })
+  signingAccountId: number
+
+  @ManyToOne(() => Account, (account) => account.transactionRecipesRecipient)
+  @JoinColumn({ name: 'recipient_account_id' })
+  recipientAccount?: Account
+
+  @Column({ name: 'recipient_account_id', type: 'int', unsigned: true, nullable: true })
+  recipientAccountId?: number
+
+  @ManyToOne(() => Community, (community) => community.transactionRecipesSender)
+  @JoinColumn({ name: 'sender_community_id' })
+  senderCommunity: Community
+
+  @Column({ name: 'sender_community_id', type: 'int', unsigned: true })
+  senderCommunityId: number
+
+  @ManyToOne(() => Community, (community) => community.transactionRecipesRecipient)
+  @JoinColumn({ name: 'recipient_community_id' })
+  recipientCommunity?: Community
+
+  @Column({ name: 'sender_community_id', type: 'int', unsigned: true, nullable: true })
+  recipientCommunityId?: number
+
+  @Column({
+    type: 'decimal',
+    precision: 40,
+    scale: 20,
+    nullable: true,
+    transformer: DecimalTransformer,
+  })
+  amount?: Decimal
+
+  @Column({ type: 'tinyint' })
+  type: number
+
+  @CreateDateColumn({ name: 'created_at', type: 'datetime' })
+  createdAt: Date
+
+  @Column({ name: 'body_bytes', type: 'blob' })
+  bodyBytes: Buffer
+
+  @Column({ type: 'binary', length: 64 })
+  signature: Buffer
+
+  @Column({ name: 'protocol_version', type: 'int', default: 1 })
+  protocolVersion: number
+
+  @OneToOne(() => ConfirmedTransaction, (transaction) => transaction.transactionRecipe)
+  confirmedTransaction?: ConfirmedTransaction
+}
--- a/dlt-database/entity/0001-init_db/User.ts
+++ b/dlt-database/entity/0001-init_db/User.ts
@ -0,0 +1,46 @@
+import {
+  BaseEntity,
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  OneToMany,
+  JoinColumn,
+  CreateDateColumn,
+} from 'typeorm'
+
+import { Account } from './Account'
+
+@Entity('users', { engine: 'InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci' })
+export class User extends BaseEntity {
+  @PrimaryGeneratedColumn('increment', { unsigned: true })
+  id: number
+
+  @Column({
+    name: 'gradido_id',
+    length: 36,
+    nullable: true,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  gradidoID?: string
+
+  @Column({ name: 'derive1_pubkey', type: 'binary', length: 32, unique: true })
+  derive1Pubkey: Buffer
+
+  @CreateDateColumn({
+    name: 'created_at',
+    type: 'datetime',
+    default: () => 'CURRENT_TIMESTAMP(3)',
+  })
+  createdAt: Date
+
+  @Column({
+    name: 'confirmed_at',
+    type: 'datetime',
+    nullable: true,
+  })
+  confirmedAt?: Date
+
+  @OneToMany(() => Account, (account) => account.user)
+  @JoinColumn({ name: 'user_id' })
+  accounts?: Account[]
+}
--- a/dlt-database/entity/Account.ts
+++ b/dlt-database/entity/Account.ts
@ -0,0 +1 @@
+export { Account } from './0001-init_db/Account'
--- a/dlt-database/entity/AccountCommunity.ts
+++ b/dlt-database/entity/AccountCommunity.ts
@ -0,0 +1 @@
+export { AccountCommunity } from './0001-init_db/AccountCommunity'
--- a/dlt-database/entity/Community.ts
+++ b/dlt-database/entity/Community.ts
@ -0,0 +1 @@
+export { Community } from './0001-init_db/Community'
--- a/dlt-database/entity/ConfirmedTransaction.ts
+++ b/dlt-database/entity/ConfirmedTransaction.ts
@ -0,0 +1 @@
+export { ConfirmedTransaction } from './0001-init_db/ConfirmedTransaction'
--- a/dlt-database/entity/InvalidTransaction.ts
+++ b/dlt-database/entity/InvalidTransaction.ts
@ -0,0 +1 @@
+export { InvalidTransaction } from './0001-init_db/InvalidTransaction'
--- a/dlt-database/entity/TransactionRecipe.ts
+++ b/dlt-database/entity/TransactionRecipe.ts
@ -0,0 +1 @@
+export { TransactionRecipe } from './0001-init_db/TransactionRecipe'
--- a/dlt-database/entity/User.ts
+++ b/dlt-database/entity/User.ts
@ -0,0 +1 @@
+export { User } from './0001-init_db/User'
--- a/dlt-database/log/.gitignore
+++ b/dlt-database/log/.gitignore
@ -0,0 +1,2 @@
+*
+!.gitignore
--- a/dlt-database/migrations/0001-init_db.ts
+++ b/dlt-database/migrations/0001-init_db.ts
@ -0,0 +1,130 @@
+/* FIRST MIGRATION
+ *
+ * This migration is special since it takes into account that
+ * the database can be setup already but also may not be.
+ * Therefore you will find all `CREATE TABLE` statements with
+ * a `IF NOT EXISTS`, all `INSERT` with an `IGNORE` and in the
+ * downgrade function all `DROP TABLE` with a `IF EXISTS`.
+ * This ensures compatibility for existing or non-existing
+ * databases.
+ */
+
+/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
+/* eslint-disable @typescript-eslint/no-explicit-any */
+
+export async function upgrade(queryFn: (query: string, values?: any[]) => Promise<Array<any>>) {
+  // write upgrade logic as parameter of queryFn
+  await queryFn(`
+    CREATE TABLE IF NOT EXISTS \`users\` (
+      \`id\` int(10) unsigned NOT NULL AUTO_INCREMENT,
+      \`gradido_id\` char(36) DEFAULT NULL,
+      \`derive1_pubkey\` binary(32) NOT NULL,
+      \`created_at\` datetime(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+      \`confirmed_at\` datetime(3) DEFAULT NULL,
+      PRIMARY KEY (\`id\`),
+      INDEX \`gradido_id\` (\`gradido_id\`),
+      UNIQUE KEY \`pubkey\` (\`pubkey\`)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;`)
+
+  await queryFn(`
+    CREATE TABLE IF NOT EXISTS \`accounts\` (
+      \`id\` int(10) unsigned NOT NULL AUTO_INCREMENT,
+      \`user_id\` int(10) unsigned DEFAULT NULL,
+      \`derivation_index\` int(10) unsigned NOT NULL,
+      \`derive2_pubkey\` binary(32) NOT NULL,
+      \`type\` tinyint unsigned NOT NULL,
+      \`created_at\` datetime(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+      \`confirmed_at\` datetime(3) DEFAULT NULL,
+      \`balance\` decimal(40,20) NOT NULL DEFAULT 0,
+      \`balance_date\` datetime(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3), 
+      PRIMARY KEY (\`id\`),
+      UNIQUE KEY \`pubkey\` (\`pubkey\`),
+      FOREIGN KEY (\`user_id\`) REFERENCES users(id)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+  `)
+
+  await queryFn(`
+    CREATE TABLE IF NOT EXISTS \`communities\` (
+      \`id\` int(10) unsigned NOT NULL AUTO_INCREMENT,
+      \`iota_topic\` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
+      \`root_pubkey\` binary(32) NOT NULL,
+      \`root_privkey\` binary(32) DEFAULT NULL,
+      \`root_chaincode\` binary(32) DEFAULT NULL,
+      \`foreign\` tinyint(4) NOT NULL DEFAULT true,
+      \`gmw_account_id\` int(10) unsigned DEFAULT NULL,
+      \`auf_account_id\` int(10) unsigned DEFAULT NULL,
+      \`created_at\` datetime(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+      \`confirmed_at\` datetime(3) DEFAULT NULL,
+      PRIMARY KEY (\`id\`),
+      UNIQUE KEY \`pubkey\` (\`pubkey\`),
+      FOREIGN KEY (\`gmw_account_id\`) REFERENCES accounts(id),
+      FOREIGN KEY (\`auf_account_id\`) REFERENCES accounts(id)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;`)
+
+  await queryFn(`
+    CREATE TABLE IF NOT EXISTS \`accounts_communities\` (
+      \`id\` int(10) unsigned NOT NULL AUTO_INCREMENT,
+      \`account_id\` int(10) unsigned NOT NULL,
+      \`community_id\` int(10) unsigned NOT NULL,
+      \`valid_from\` datetime(3) NOT NULL,
+      \`valid_to\` datetime(3) DEFAULT NULL,
+      PRIMARY KEY (\`id\`),
+      FOREIGN KEY (\`account_id\`) REFERENCES accounts(id),
+      FOREIGN KEY (\`community_id\`) REFERENCES communities(id)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;`)
+
+  await queryFn(`
+    CREATE TABLE IF NOT EXISTS \`transaction_recipes\` (
+      \`id\` bigint unsigned NOT NULL AUTO_INCREMENT,
+      \`iota_message_id\` binary(32) DEFAULT NULL,
+      \`signing_account_id\` int(10) unsigned NOT NULL,
+      \`recipient_account_id\` int(10) unsigned DEFAULT NULL,
+      \`sender_community_id\` int(10) unsigned NOT NULL,
+      \`recipient_community_id\` int(10) unsigned DEFAULT NULL,
+      \`amount\` decimal(40,20) DEFAULT NULL,
+      \`type\` tinyint unsigned NOT NULL,
+      \`created_at\` datetime(3) NOT NULL,
+      \`body_bytes\` BLOB NOT NULL,
+      \`signature\` binary(64) NOT NULL,
+      \`protocol_version\` int(10) NOT NULL DEFAULT 1,
+      PRIMARY KEY (\`id\`),
+      FOREIGN KEY (\`signing_account_id\`) REFERENCES accounts(id),
+      FOREIGN KEY (\`recipient_account_id\`) REFERENCES accounts(id),
+      FOREIGN KEY (\`sender_community_id\`) REFERENCES communities(id),
+      FOREIGN KEY (\`recipient_community_id\`) REFERENCES communities(id)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;`)
+
+  await queryFn(`
+    CREATE TABLE IF NOT EXISTS \`confirmed_transactions\` (
+      \`id\` bigint unsigned NOT NULL AUTO_INCREMENT,
+      \`transaction_recipe_id\` bigint unsigned NOT NULL,
+      \`nr\` bigint unsigned NOT NULL,
+      \`running_hash\` binary(48) NOT NULL,
+      \`account_id\` int(10) unsigned NOT NULL,
+      \`account_balance\` decimal(40,20) NOT NULL DEFAULT 0,
+      \`iota_milestone\` bigint NOT NULL,
+      \`confirmed_at\` datetime(3) NOT NULL,
+      PRIMARY KEY (\`id\`),
+      FOREIGN KEY (\`transaction_recipe_id\`) REFERENCES transaction_recipes(id),
+      FOREIGN KEY (\`account_id\`) REFERENCES accounts(id)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;`)
+
+  await queryFn(`
+    CREATE TABLE IF NOT EXISTS \`invalid_transactions\` (
+      \`id\` bigint unsigned NOT NULL AUTO_INCREMENT,
+      \`iota_message_id\` binary(32) NOT NULL,
+      PRIMARY KEY (\`id\`),
+      INDEX (\`iota_message_id\`)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;`)
+}
+
+export async function downgrade(queryFn: (query: string, values?: any[]) => Promise<Array<any>>) {
+  // write downgrade logic as parameter of queryFn
+  await queryFn(`DROP TABLE IF EXISTS \`users\`;`)
+  await queryFn(`DROP TABLE IF EXISTS \`accounts\`;`)
+  await queryFn(`DROP TABLE IF EXISTS \`accounts_communities\`;`)
+  await queryFn(`DROP TABLE IF EXISTS \`transaction_recipes\`;`)
+  await queryFn(`DROP TABLE IF EXISTS \`confirmed_transactions\`;`)
+  await queryFn(`DROP TABLE IF EXISTS \`community\`;`)
+  await queryFn(`DROP TABLE IF EXISTS \`invalid_transactions\`;`)
+}
--- a/dlt-database/package.json
+++ b/dlt-database/package.json
@ -0,0 +1,55 @@
+{
+  "name": "gradido-database",
+  "version": "1.23.2",
+  "description": "Gradido Database Tool to execute database migrations",
+  "main": "src/index.ts",
+  "repository": "https://github.com/gradido/gradido/database",
+  "author": "Ulf Gebhardt",
+  "license": "Apache-2.0",
+  "private": false,
+  "scripts": {
+    "build": "tsc --build",
+    "clean": "tsc --build --clean",
+    "up": "cross-env TZ=UTC node build/src/index.js up",
+    "down": "cross-env TZ=UTC node build/src/index.js down",
+    "reset": "cross-env TZ=UTC node build/src/index.js reset",
+    "dev_up": "cross-env TZ=UTC ts-node src/index.ts up",
+    "dev_down": "cross-env TZ=UTC ts-node src/index.ts down",
+    "dev_reset": "cross-env TZ=UTC ts-node src/index.ts reset",
+    "lint": "eslint --max-warnings=0 --ext .js,.ts ."
+  },
+  "devDependencies": {
+    "@eslint-community/eslint-plugin-eslint-comments": "^3.2.1",
+    "@types/faker": "^5.5.9",
+    "@types/node": "^16.10.3",
+    "@typescript-eslint/eslint-plugin": "^5.57.1",
+    "@typescript-eslint/parser": "^5.57.1",
+    "eslint": "^8.37.0",
+    "eslint-config-prettier": "^8.8.0",
+    "eslint-config-standard": "^17.0.0",
+    "eslint-import-resolver-typescript": "^3.5.4",
+    "eslint-plugin-import": "^2.27.5",
+    "eslint-plugin-n": "^15.7.0",
+    "eslint-plugin-prettier": "^4.2.1",
+    "eslint-plugin-promise": "^6.1.1",
+    "eslint-plugin-security": "^1.7.1",
+    "prettier": "^2.8.7",
+    "ts-node": "^10.2.1",
+    "typescript": "^4.3.5"
+  },
+  "dependencies": {
+    "@types/uuid": "^8.3.4",
+    "cross-env": "^7.0.3",
+    "crypto": "^1.0.1",
+    "decimal.js-light": "^2.5.1",
+    "dotenv": "^10.0.0",
+    "mysql2": "^2.3.0",
+    "reflect-metadata": "^0.1.13",
+    "ts-mysql-migrate": "^1.0.2",
+    "typeorm": "^0.3.16",
+    "uuid": "^8.3.2"
+  },
+  "engines": {
+    "node": ">=14"
+  }
+}
--- a/dlt-database/src/config/index.ts
+++ b/dlt-database/src/config/index.ts
@ -0,0 +1,39 @@
+/* eslint-disable n/no-process-env */
+
+import dotenv from 'dotenv'
+
+dotenv.config()
+
+const constants = {
+  CONFIG_VERSION: {
+    DEFAULT: 'DEFAULT',
+    EXPECTED: 'v1.2022-08-22',
+    CURRENT: '',
+  },
+}
+
+const database = {
+  DB_HOST: process.env.DB_HOST || 'localhost',
+  DB_PORT: process.env.DB_PORT ? parseInt(process.env.DB_PORT) : 3306,
+  DB_USER: process.env.DB_USER || 'root',
+  DB_PASSWORD: process.env.DB_PASSWORD || '',
+  DB_DATABASE: process.env.DB_DATABASE || 'gradido_dlt',
+}
+
+const migrations = {
+  MIGRATIONS_TABLE: process.env.MIGRATIONS_TABLE || 'migrations',
+}
+
+// Check config version
+constants.CONFIG_VERSION.CURRENT = process.env.CONFIG_VERSION || constants.CONFIG_VERSION.DEFAULT
+if (
+  ![constants.CONFIG_VERSION.EXPECTED, constants.CONFIG_VERSION.DEFAULT].includes(
+    constants.CONFIG_VERSION.CURRENT,
+  )
+) {
+  throw new Error(
+    `Fatal: Config Version incorrect - expected "${constants.CONFIG_VERSION.EXPECTED}" or "${constants.CONFIG_VERSION.DEFAULT}", but found "${constants.CONFIG_VERSION.CURRENT}"`,
+  )
+}
+
+export const CONFIG = { ...constants, ...database, ...migrations }
--- a/dlt-database/src/index.ts
+++ b/dlt-database/src/index.ts
@ -0,0 +1,56 @@
+import { createDatabase } from './prepare'
+import { CONFIG } from './config'
+
+import { createPool } from 'mysql'
+import { Migration } from 'ts-mysql-migrate'
+import path from 'path'
+
+const run = async (command: string) => {
+  // Database actions not supported by our migration library
+  await createDatabase()
+
+  // Initialize Migrations
+  const pool = createPool({
+    host: CONFIG.DB_HOST,
+    port: CONFIG.DB_PORT,
+    user: CONFIG.DB_USER,
+    password: CONFIG.DB_PASSWORD,
+    database: CONFIG.DB_DATABASE,
+  })
+  const migration = new Migration({
+    conn: pool,
+    tableName: CONFIG.MIGRATIONS_TABLE,
+    silent: true,
+    dir: path.join(__dirname, '..', 'migrations'),
+  })
+  await migration.initialize()
+
+  // Execute command
+  switch (command) {
+    case 'up':
+      await migration.up() // use for upgrade script
+      break
+    case 'down':
+      await migration.down() // use for downgrade script
+      break
+    case 'reset':
+      // TODO protect from production
+      await migration.reset()
+      break
+    default:
+      throw new Error(`Unsupported command ${command}`)
+  }
+
+  // Terminate connections gracefully
+  pool.end()
+}
+
+run(process.argv[2])
+  .catch((err) => {
+    // eslint-disable-next-line no-console
+    console.log(err)
+    process.exit(1)
+  })
+  .then(() => {
+    process.exit()
+  })
--- a/dlt-database/src/prepare.ts
+++ b/dlt-database/src/prepare.ts
@ -0,0 +1,22 @@
+import { createConnection } from 'mysql2/promise'
+
+import { CONFIG } from './config'
+
+export const createDatabase = async (): Promise<void> => {
+  const con = await createConnection({
+    host: CONFIG.DB_HOST,
+    port: CONFIG.DB_PORT,
+    user: CONFIG.DB_USER,
+    password: CONFIG.DB_PASSWORD,
+  })
+
+  await con.connect()
+
+  // Create Database `gradido_dlt`
+  await con.query(`
+    CREATE DATABASE IF NOT EXISTS ${CONFIG.DB_DATABASE} 
+      DEFAULT CHARACTER SET utf8mb4
+      DEFAULT COLLATE utf8mb4_unicode_ci;`)
+
+  await con.end()
+}
--- a/dlt-database/src/typeorm.ts
+++ b/dlt-database/src/typeorm.ts
@ -0,0 +1 @@
+export * from 'typeorm'
--- a/dlt-database/src/typeorm/DecimalTransformer.ts
+++ b/dlt-database/src/typeorm/DecimalTransformer.ts
@ -0,0 +1,19 @@
+import { Decimal } from 'decimal.js-light'
+import { ValueTransformer } from 'typeorm'
+
+Decimal.set({
+  precision: 25,
+  rounding: Decimal.ROUND_HALF_UP,
+})
+
+export const DecimalTransformer: ValueTransformer = {
+  /**
+   * Used to marshal Decimal when writing to the database.
+   */
+  to: (decimal: Decimal | null): string | null => (decimal ? decimal.toString() : null),
+
+  /**
+   * Used to unmarshal Decimal when reading from the database.
+   */
+  from: (decimal: string | null): Decimal | null => (decimal ? new Decimal(decimal) : null),
+}
--- a/dlt-database/tsconfig.json
+++ b/dlt-database/tsconfig.json
@ -0,0 +1,73 @@
+{
+  "compilerOptions": {
+    /* Visit https://aka.ms/tsconfig.json to read more about this file */
+
+    /* Basic Options */
+    // "incremental": true,                         /* Enable incremental compilation */
+    "target": "es6",                                /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', 'ES2021', or 'ESNEXT'. */
+    "module": "commonjs",                           /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
+    // "lib": [],                                   /* Specify library files to be included in the compilation. */
+    // "allowJs": true,                             /* Allow javascript files to be compiled. */
+    // "checkJs": true,                             /* Report errors in .js files. */
+    // "jsx": "preserve",                           /* Specify JSX code generation: 'preserve', 'react-native', 'react', 'react-jsx' or 'react-jsxdev'. */
+    "declaration": true,                            /* Generates corresponding '.d.ts' file. */
+    "declarationMap": true,                         /* Generates a sourcemap for each corresponding '.d.ts' file. */
+    // "sourceMap": true,                           /* Generates corresponding '.map' file. */
+    // "outFile": "./build/outfile.js",                /* Concatenate and emit output to single file. */
+    "outDir": "./build",                            /* Redirect output structure to the directory. */
+    // "rootDir": "./",                             /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    "composite": true,                              /* Enable project compilation */
+    // "tsBuildInfoFile": "./",                     /* Specify file to store incremental compilation information */
+    // "removeComments": true,                      /* Do not emit comments to output. */
+    // "noEmit": true,                              /* Do not emit outputs. */
+    // "importHelpers": true,                       /* Import emit helpers from 'tslib'. */
+    // "downlevelIteration": true,                  /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+    // "isolatedModules": true,                     /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+
+    /* Strict Type-Checking Options */
+    "strict": true,                                 /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                       /* Raise error on expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,                    /* Enable strict null checks. */
+    // "strictFunctionTypes": true,                 /* Enable strict checking of function types. */
+    // "strictBindCallApply": true,                 /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
+    "strictPropertyInitialization": false,          /* Enable strict checking of property initialization in classes. */
+    // "noImplicitThis": true,                      /* Raise error on 'this' expressions with an implied 'any' type. */
+    // "alwaysStrict": true,                        /* Parse in strict mode and emit "use strict" for each source file. */
+
+    /* Additional Checks */
+    // "noUnusedLocals": true,                      /* Report errors on unused locals. */
+    // "noUnusedParameters": true,                  /* Report errors on unused parameters. */
+    // "noImplicitReturns": true,                   /* Report error when not all code paths in function return a value. */
+    // "noFallthroughCasesInSwitch": true,          /* Report errors for fallthrough cases in switch statement. */
+    // "noUncheckedIndexedAccess": true,            /* Include 'undefined' in index signature results */
+    // "noImplicitOverride": true,                  /* Ensure overriding members in derived classes are marked with an 'override' modifier. */
+    // "noPropertyAccessFromIndexSignature": true,  /* Require undeclared properties from index signatures to use element accesses. */
+
+    /* Module Resolution Options */
+    // "moduleResolution": "node",                  /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    // "baseUrl": "./",                             /* Base directory to resolve non-absolute module names. */
+    // "paths": {},                                 /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+    // "rootDirs": [".", "../database"],            /* List of root folders whose combined content represents the structure of the project at runtime. */
+    // "typeRoots": [],                             /* List of folders to include type definitions from. */
+    // "types": [],                                 /* Type declaration files to be included in compilation. */
+    // "allowSyntheticDefaultImports": true,        /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+    "esModuleInterop": true,                        /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    // "preserveSymlinks": true,                    /* Do not resolve the real path of symlinks. */
+    // "allowUmdGlobalAccess": true,                /* Allow accessing UMD globals from modules. */
+
+    /* Source Map Options */
+    // "sourceRoot": "",                            /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+    // "mapRoot": "",                               /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,                     /* Emit a single file with source maps instead of having a separate file. */
+    // "inlineSources": true,                       /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+
+    /* Experimental Options */
+    "experimentalDecorators": true,                 /* Enables experimental support for ES7 decorators. */
+    "emitDecoratorMetadata": true,                  /* Enables experimental support for emitting type metadata for decorators. */
+
+    /* Advanced Options */
+    "skipLibCheck": true,                           /* Skip type checking of declaration files. */
+    "forceConsistentCasingInFileNames": true        /* Disallow inconsistently-cased references to the same file. */
+  },
+  "references": []                                  /* Any project that is referenced must itself have a `references` array (which may be empty). */
+}
--- a/dlt-database/yarn.lock
+++ b/dlt-database/yarn.lock
--- a/docker-compose.apple-m1.override.yml
+++ b/docker-compose.apple-m1.override.yml
@ -35,6 +35,12 @@ services:
  ########################################################
  database:
    platform: linux/amd64
+
+  ########################################################
+  # DLT-DATABASE #############################################
+  ########################################################
+  dlt-database:
+    platform: linux/amd64
    
  #########################################################
  ## NGINX ################################################
--- a/docker-compose.override.yml
+++ b/docker-compose.override.yml
@ -149,6 +149,28 @@ services:
      # bind the local folder to the docker to allow live reload
      - ./database:/app

+  ########################################################
+  # DLT-DATABASE ##############################################
+  ########################################################
+  dlt-database:
+    # we always run on production here since else the service lingers
+    #  feel free to change this behaviour if it seems useful
+    #  Due to problems with the volume caching the built files
+    #  we changed this to test build. This keeps the service running.
+    # name the image so that it cannot be found in a DockerHub repository, otherwise it will not be built locally from the 'dockerfile' but pulled from there
+    image: gradido/dlt-database:local-test_up
+    build:
+      target: test_up
+    environment:
+      - NODE_ENV="development"
+    volumes:
+      # This makes sure the docker container has its own node modules.
+      # Therefore it is possible to have a different node version on the host machine
+      - dlt-database_node_modules:/app/node_modules
+      - dlt-database_build:/app/build
+      # bind the local folder to the docker to allow live reload
+      - ./dlt-database:/app
+
  #########################################################
  ## MARIADB ##############################################
  #########################################################
@ -203,4 +225,6 @@ volumes:
  federation_database_node_modules:
  federation_database_build:
  database_node_modules:
-  database_build:
+  database_build:
+  dlt-database_node_modules:
+  dlt-database_build:
--- a/docker-compose.test.yml
+++ b/docker-compose.test.yml
@ -77,6 +77,18 @@ services:
      - NODE_ENV="test"
  #  restart: always # this is very dangerous, but worth a test for the delayed mariadb startup at first run

+  ########################################################
+  # DLT-DATABASE #############################################
+  ########################################################
+  dlt-database:
+    image: gradido/dlt-database:test_up
+    build:
+      context: ./dlt-database
+      target: test_up
+    environment:
+      - NODE_ENV="test"
+  #  restart: always # this is very dangerous, but worth a test for the delayed mariadb startup at first run
+
  #########################################################
  ## MARIADB ##############################################
  #########################################################
--- a/docker-compose.yml
+++ b/docker-compose.yml
@ -239,6 +239,32 @@ services:
      # Application only envs
    #env_file:
    #  - ./frontend/.env
+
+  ########################################################
+  # DLT-DATABASE #############################################
+  ########################################################
+  dlt-database:
+    # name the image so that it cannot be found in a DockerHub repository, otherwise it will not be built locally from the 'dockerfile' but pulled from there
+    image: gradido/dlt-database:local-production_up
+    build:
+      context: ./dlt-database
+      target: production_up
+    depends_on:
+      - mariadb
+    networks:
+      - internal-net
+      - external-net # this is required to fetch the packages
+    environment:
+      # Envs used in Dockerfile
+      # - DOCKER_WORKDIR="/app"
+      - BUILD_DATE
+      - BUILD_VERSION
+      - BUILD_COMMIT
+      - NODE_ENV="production"
+      - DB_HOST=mariadb
+      # Application only envs
+    #env_file:
+    #  - ./frontend/.env
    
  #########################################################
  ## NGINX ################################################
--- a/docu/Concepts/DLT/database.md
+++ b/docu/Concepts/DLT/database.md
@ -0,0 +1,4 @@
+# DLT Connector Database
+
+![Diagram](img/dlt-diagramm.png)
+[Link zum PDF](img/dlt-diagramm.pdf)
--- a/docu/Concepts/DLT/derived_keys.md
+++ b/docu/Concepts/DLT/derived_keys.md
@ -0,0 +1,26 @@
+# Key Derivation
+The DLT connector uses key derivation to derive keys for each user in the community account with a master key.
+![Bip32](https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki)
+
+## user accounts
+The Path for key derivation contain the gradido id, and derivation index of account
+Gradido ID: 03857ac1-9cc2-483e-8a91-e5b10f5b8d16
+Derivation Index: 1 
+Key derivation Path:
+```
+m/03857ac1'/9cc2'/483e'/8a91'/e5b10f5b8d16'/1
+```
+
+## gmw and auf accounts
+For gmw and auf accounts two special Paths used:
+gmw account => account nr 1  
+```
+m/1'
+```
+auf account => account nr 2  
+```
+m/2'
+```
+
+
+
--- a/docu/Concepts/DLT/img/dlt-diagramm.pdf
+++ b/docu/Concepts/DLT/img/dlt-diagramm.pdf
--- a/docu/Concepts/DLT/img/dlt-diagramm.png
+++ b/docu/Concepts/DLT/img/dlt-diagramm.png
--- a/docu/Concepts/DLT/overview.md
+++ b/docu/Concepts/DLT/overview.md
@ -0,0 +1,67 @@
+# DLT-Connector Overview
+
+What the DLT Connector does roughly.
+
+- create transaction
+- receive transactions from iota
+- warmup, load missing transactions from iota on startup
+
+## create transaction 
+- called from backend with transaction details
+  - sender user | signing user (in case of contribution)
+    - uuid
+    - account nr | default = 1  
+    - community uuid
+  - recipient user 
+    - uuid
+    - account nr | default = 1  
+    - community uuid
+  - amount
+  - memo 
+  - type
+  - createdAt
+- load or create accounts
+- compose protobuf transaction
+- derive correct private key for signing account and sign transaction
+- validate transaction
+- write transaction into transaction_recipes table
+- send transaction to iota
+- update iota message id in transaction_recipes table
+- return to backend with iota message id
+
+
+## receive transactions from iota
+- listen on all registered community topics on iota
+- make sure we have everything from milestone
+- sort per community by iota milestone, createdAt ASC
+- per message:
+  - deserialize to protobuf object
+  - validate
+  - if valid:
+    - calculate running_hash and account_balance
+    - write into confirmed_transactions
+  - if invalid: 
+    - write into invalid_transactions
+  - send request to backend with final transaction data for comparison
+    - sender user | signing user (in case of contribution)
+      - uuid
+      - account nr 
+      - community uuid
+    - recipient user 
+      - uuid
+      - account nr
+      - community uuid
+    - amount 
+    - memo
+    - createdAt
+    - confirmedAt
+    - type
+    - iota message id
+    - balance for createdAt
+    - decay for createdAt
+
+## warmup, load missing transactions from iota or Chronicle on startup
+- read all iota message ids from all registered topics
+- check if already exist
+- load details for not existing message ids
+- do for every message [receive](#receive-transactions-from-iota)
--- a/frontend/src/components/CommunitySwitch.vue
+++ b/frontend/src/components/CommunitySwitch.vue
@ -56,3 +56,23 @@ export default {
  },
 }
 </script>
+<style>
+.community-switch > div,
+.community-switch ul.dropdown-menu {
+  width: 100%;
+}
+.community-switch > div > button {
+  border-radius: 17px;
+  height: 50px;
+  text-align: left;
+}
+.community-switch .dropdown-toggle::after {
+  float: right;
+  top: 50%;
+  transform: translateY(-50%);
+  position: relative;
+}
+.community-switch ul li:first-child {
+  display: none;
+}
+</style>
				`@ -0,0 +1 @@`
				`export { Account } from './0001-init_db/Account'`
				`@ -0,0 +1 @@`
				`export { AccountCommunity } from './0001-init_db/AccountCommunity'`
				`@ -0,0 +1 @@`
				`export { Community } from './0001-init_db/Community'`
				`@ -0,0 +1 @@`
				`export { ConfirmedTransaction } from './0001-init_db/ConfirmedTransaction'`
				`@ -0,0 +1 @@`
				`export { InvalidTransaction } from './0001-init_db/InvalidTransaction'`
				`@ -0,0 +1 @@`
				`export { TransactionRecipe } from './0001-init_db/TransactionRecipe'`