diff --git a/packages/backend/package.json b/packages/backend/package.json
index 000d831..584fe96 100644
--- a/packages/backend/package.json
+++ b/packages/backend/package.json
@@ -16,6 +16,7 @@
   },
   "dependencies": {
     "@octokit/oauth-methods": "^1.2.6",
+    "@slack/oauth": "2.3.0",
     "axios": "0.24.0",
     "bcrypt": "^5.0.1",
     "cors": "^2.8.5",
diff --git a/packages/backend/src/apps/slack/assets/favicon.svg b/packages/backend/src/apps/slack/assets/favicon.svg
new file mode 100644
index 0000000..81629c7
--- /dev/null
+++ b/packages/backend/src/apps/slack/assets/favicon.svg
@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
+aria-label="Slack" role="img"
+viewBox="0 0 512 512"><rect
+width="512" height="512"
+rx="15%"
+fill="#fff"/><g fill="#e01e5a"><path id="a" d="M149 305a39 39 0 01-78 0c0-22 17 -39 39 -39h39zM168 305a39 39 0 0178 0v97a39 39 0 01-78 0z"/></g><use xlink:href="#a" fill="#36c5f0" transform="rotate(90,256,256)"/><use xlink:href="#a" fill="#2eb67d" transform="rotate(180,256,256)"/><use xlink:href="#a" fill="#ecb22e" transform="rotate(270,256,256)"/></svg>
diff --git a/packages/backend/src/apps/slack/index.ts b/packages/backend/src/apps/slack/index.ts
new file mode 100644
index 0000000..0425e87
--- /dev/null
+++ b/packages/backend/src/apps/slack/index.ts
@@ -0,0 +1,54 @@
+import { InstallProvider } from '@slack/oauth';
+import App from '../../models/app';
+import Field from '../../types/field';
+
+export default class Slack {
+  client: any
+  connectionData: any
+  appData: any
+
+  scopes: string[] = [
+    'channels:read'
+  ]
+
+  constructor(connectionData: any) {
+    this.client = new InstallProvider({
+      clientId: connectionData.consumerKey,
+      clientSecret: connectionData.consumerSecret,
+      stateSecret: 'my-state-secret'
+    });
+
+    this.connectionData = connectionData;
+    this.appData = App.findOneByKey('slack');
+  }
+
+  async createAuthData() {
+    const url = await this.client.generateInstallUrl({
+      scopes: this.scopes
+    })
+
+    return { url }
+  }
+
+  async verifyCredentials() {
+    // const verifiedCredentials = await this.client.login(this.connectionData.oauthVerifier)
+
+    // return {
+    //   consumerKey: this.connectionData.consumerKey,
+    //   consumerSecret: this.connectionData.consumerSecret,
+    //   accessToken: verifiedCredentials.accessToken,
+    //   accessSecret: verifiedCredentials.accessSecret,
+    //   userId: verifiedCredentials.userId,
+    //   screenName: verifiedCredentials.screenName
+    // }
+  }
+
+  async isStillVerified() {
+    // try {
+    //   await this.client.currentUser();
+    //   return true;
+    // } catch {
+    //   return false
+    // }
+  }
+}
diff --git a/packages/backend/src/apps/slack/info.json b/packages/backend/src/apps/slack/info.json
new file mode 100644
index 0000000..3aea4fd
--- /dev/null
+++ b/packages/backend/src/apps/slack/info.json
@@ -0,0 +1,218 @@
+{
+  "name": "Slack",
+  "key": "slack",
+  "iconUrl": "{BASE_URL}/apps/slack/assets/favicon.svg",
+  "docUrl": "https://automatisch.io/docs/slack",
+  "primaryColor": "2DAAE1",
+  "fields": [
+    {
+      "key": "oAuthRedirectUrl",
+      "label": "OAuth Redirect URL",
+      "type": "string",
+      "required": true,
+      "readOnly": true,
+      "value": "https://localhost:3001/app/slack/connections/add",
+      "placeholder": null,
+      "description": "When asked to input an OAuth callback or redirect URL in Slack OAuth, enter the URL above.",
+      "docUrl": "https://automatisch.io/docs/slack#oauth-redirect-url",
+      "clickToCopy": true
+    },
+    {
+      "key": "consumerKey",
+      "label": "Client ID",
+      "type": "string",
+      "required": true,
+      "readOnly": false,
+      "value": null,
+      "placeholder": null,
+      "description": null,
+      "docUrl": "https://automatisch.io/docs/slack#client-id",
+      "clickToCopy": false
+    },
+    {
+      "key": "consumerSecret",
+      "label": "Client Secret",
+      "type": "string",
+      "required": true,
+      "readOnly": false,
+      "value": null,
+      "placeholder": null,
+      "description": null,
+      "docUrl": "https://automatisch.io/docs/slack#client-secret",
+      "clickToCopy": false
+    }
+  ],
+  "authenticationSteps": [
+    {
+      "step": 1,
+      "type": "mutation",
+      "name": "createConnection",
+      "arguments": [
+        {
+          "name": "key",
+          "value": "{key}"
+        },
+        {
+          "name": "data",
+          "value": null,
+          "properties": [
+            {
+              "name": "consumerKey",
+              "value": "{fields.consumerKey}"
+            },
+            {
+              "name": "consumerSecret",
+              "value": "{fields.consumerSecret}"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "step": 2,
+      "type": "mutation",
+      "name": "createAuthData",
+      "arguments": [
+        {
+          "name": "id",
+          "value": "{createConnection.id}"
+        }
+      ]
+    },
+    {
+      "step": 3,
+      "type": "openWithPopup",
+      "name": "openAuthPopup",
+      "arguments": [
+        {
+          "name": "url",
+          "value": "{createAuthData.url}"
+        }
+      ]
+    },
+    {
+      "step": 4,
+      "type": "mutation",
+      "name": "updateConnection",
+      "arguments": [
+        {
+          "name": "id",
+          "value": "{createConnection.id}"
+        },
+        {
+          "name": "data",
+          "value": null,
+          "properties": [
+            {
+              "name": "oauthVerifier",
+              "value": "{openAuthPopup.oauth_verifier}"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "step": 5,
+      "type": "mutation",
+      "name": "verifyConnection",
+      "arguments": [
+        {
+          "name": "id",
+          "value": "{createConnection.id}"
+        }
+      ]
+    }
+  ],
+  "reconnectionSteps": [
+    {
+      "step": 1,
+      "type": "mutation",
+      "name": "resetConnection",
+      "arguments": [
+        {
+          "name": "id",
+          "value": "{connection.id}"
+        }
+      ]
+    },
+    {
+      "step": 2,
+      "type": "mutation",
+      "name": "updateConnection",
+      "arguments": [
+        {
+          "name": "id",
+          "value": "{connection.id}"
+        },
+        {
+          "name": "data",
+          "value": null,
+          "properties": [
+            {
+              "name": "consumerKey",
+              "value": "{fields.consumerKey}"
+            },
+            {
+              "name": "consumerSecret",
+              "value": "{fields.consumerSecret}"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "step": 3,
+      "type": "mutation",
+      "name": "createAuthData",
+      "arguments": [
+        {
+          "name": "id",
+          "value": "{connection.id}"
+        }
+      ]
+    },
+    {
+      "step": 4,
+      "type": "openWithPopup",
+      "name": "openAuthPopup",
+      "arguments": [
+        {
+          "name": "url",
+          "value": "{createAuthData.url}"
+        }
+      ]
+    },
+    {
+      "step": 5,
+      "type": "mutation",
+      "name": "updateConnection",
+      "arguments": [
+        {
+          "name": "id",
+          "value": "{connection.id}"
+        },
+        {
+          "name": "data",
+          "value": null,
+          "properties": [
+            {
+              "name": "oauthVerifier",
+              "value": "{openAuthPopup.oauth_verifier}"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "step": 6,
+      "type": "mutation",
+      "name": "verifyConnection",
+      "arguments": [
+        {
+          "name": "id",
+          "value": "{connection.id}"
+        }
+      ]
+    }
+  ]
+}
diff --git a/packages/backend/src/apps/twitter/index.ts b/packages/backend/src/apps/twitter/index.ts
index 9416dc2..34f21b1 100644
--- a/packages/backend/src/apps/twitter/index.ts
+++ b/packages/backend/src/apps/twitter/index.ts
@@ -23,12 +23,12 @@ export default class Twitter {
     const appFields = this.appData.fields.find((field: Field) => field.key == 'oAuthRedirectUrl')
     const callbackUrl = appFields.value;
 
-    const authLink = await this.client.generateAuthLink(callbackUrl);
+    const authData = await this.client.generateAuthLink(callbackUrl);
 
     return {
-      url: authLink.url,
-      accessToken: authLink.oauth_token,
-      accessSecret: authLink.oauth_token_secret,
+      url: authData.url,
+      accessToken: authData.oauth_token,
+      accessSecret: authData.oauth_token_secret,
     }
   }
 
diff --git a/packages/backend/src/graphql/mutations/create-connection.ts b/packages/backend/src/graphql/mutations/create-connection.ts
index cc97ab6..8ed4a65 100644
--- a/packages/backend/src/graphql/mutations/create-connection.ts
+++ b/packages/backend/src/graphql/mutations/create-connection.ts
@@ -10,6 +10,8 @@ type Params = {
   data: object
 }
 const createConnectionResolver = async (params: Params, req: RequestWithCurrentUser) => {
+  console.log('params :', params)
+
   const app = App.findOneByKey(params.key);
   const connection = await Connection.query().insert({
     key: params.key,
diff --git a/yarn.lock b/yarn.lock
index 64c9344..97f2d7f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2815,6 +2815,47 @@
   resolved "https://registry.yarnpkg.com/@sinonjs/text-encoding/-/text-encoding-0.7.1.tgz#8da5c6530915653f3a1f38fd5f101d8c3f8079c5"
   integrity sha512-+iTbntw2IZPb/anVDbypzfQa+ay64MW0Zo8aJ8gZPWMMK6/OubMVb6lUPMagqjOPnmtauXnFCACVl3O7ogjeqQ==
 
+"@slack/logger@^3.0.0":
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/@slack/logger/-/logger-3.0.0.tgz#b736d4e1c112c22a10ffab0c2d364620aedcb714"
+  integrity sha512-DTuBFbqu4gGfajREEMrkq5jBhcnskinhr4+AnfJEk48zhVeEv3XnUKGIX98B74kxhYsIMfApGGySTn7V3b5yBA==
+  dependencies:
+    "@types/node" ">=12.0.0"
+
+"@slack/oauth@2.3.0":
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/@slack/oauth/-/oauth-2.3.0.tgz#733f583cc8733bfb8fe7884b5a33e86a64f1b33c"
+  integrity sha512-VcxxQ8rks7Vx9mCF7JtOT8QnksnfMsQmKP6S7l5fZ8BzptdqrhNjoBvnfzdmJLjG2qGFA5Ucua6xjNMNv6ZGZg==
+  dependencies:
+    "@slack/logger" "^3.0.0"
+    "@slack/web-api" "^6.3.0"
+    "@types/jsonwebtoken" "^8.3.7"
+    "@types/node" ">=12"
+    jsonwebtoken "^8.5.1"
+    lodash.isstring "^4.0.1"
+
+"@slack/types@^2.0.0":
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/@slack/types/-/types-2.2.0.tgz#fcc3648ee20c3fb92a076b23c35bca19158d9925"
+  integrity sha512-/yHEFvgp0UY/lfFvQqbq9BocW/pM4xnGycqGAx+plRgYp96dZp1y50Whz7yzOgasEUsy5TyQfBK07cj0RwUyIg==
+
+"@slack/web-api@^6.3.0":
+  version "6.4.0"
+  resolved "https://registry.yarnpkg.com/@slack/web-api/-/web-api-6.4.0.tgz#fe8212e4aca50c4cbafe4dac3f4b81c84c527423"
+  integrity sha512-Hi0pq60d/zCqn1UQvuSyrMcoLGNbKUBL/Tmk1b1RPTZdVYiRK8zp337glvhxTBwiaGOu+58uO5yflpK1AAuoRw==
+  dependencies:
+    "@slack/logger" "^3.0.0"
+    "@slack/types" "^2.0.0"
+    "@types/is-stream" "^1.1.0"
+    "@types/node" ">=12.0.0"
+    axios "^0.21.1"
+    eventemitter3 "^3.1.0"
+    form-data "^2.5.0"
+    is-electron "^2.2.0"
+    is-stream "^1.1.0"
+    p-queue "^6.6.1"
+    p-retry "^4.0.0"
+
 "@surma/rollup-plugin-off-main-thread@^1.1.1":
   version "1.4.2"
   resolved "https://registry.yarnpkg.com/@surma/rollup-plugin-off-main-thread/-/rollup-plugin-off-main-thread-1.4.2.tgz#e6786b6af5799f82f7ab3a82e53f6182d2b91a58"
@@ -3142,6 +3183,13 @@
   resolved "https://registry.yarnpkg.com/@types/http-errors/-/http-errors-1.8.1.tgz#e81ad28a60bee0328c6d2384e029aec626f1ae67"
   integrity sha512-e+2rjEwK6KDaNOm5Aa9wNGgyS9oSZU/4pfSMMPYNOfjvFI0WVXm29+ITRFr6aKDvvKo7uU1jV68MW4ScsfDi7Q==
 
+"@types/is-stream@^1.1.0":
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/@types/is-stream/-/is-stream-1.1.0.tgz#b84d7bb207a210f2af9bed431dc0fbe9c4143be1"
+  integrity sha512-jkZatu4QVbR60mpIzjINmtS1ZF4a/FqdTUTBeQDVOQ2PYyidtwFKr0B5G6ERukKwliq+7mIXvxyppwzG5EgRYg==
+  dependencies:
+    "@types/node" "*"
+
 "@types/istanbul-lib-coverage@*", "@types/istanbul-lib-coverage@^2.0.0", "@types/istanbul-lib-coverage@^2.0.1":
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.3.tgz#4ba8ddb720221f432e443bd5f9117fd22cfd4762"
@@ -3187,6 +3235,13 @@
   resolved "https://registry.yarnpkg.com/@types/json5/-/json5-0.0.29.tgz#ee28707ae94e11d2b827bcbe5270bcea7f3e71ee"
   integrity sha1-7ihweulOEdK4J7y+UnC86n8+ce4=
 
+"@types/jsonwebtoken@^8.3.7":
+  version "8.5.5"
+  resolved "https://registry.yarnpkg.com/@types/jsonwebtoken/-/jsonwebtoken-8.5.5.tgz#da5f2f4baee88f052ef3e4db4c1a0afb46cff22c"
+  integrity sha512-OGqtHQ7N5/Ap/TUwO6IgHDuLiAoTmHhGpNvgkCm/F4N6pKzx/RBSfr2OXZSwC6vkfnsEdb6+7DNZVtiXiwdwFw==
+  dependencies:
+    "@types/node" "*"
+
 "@types/lodash.template@^4.5.0":
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/@types/lodash.template/-/lodash.template-4.5.0.tgz#277654af717ed37ce2687c69f8f221c550276b7a"
@@ -3226,6 +3281,11 @@
   resolved "https://registry.yarnpkg.com/@types/node/-/node-16.10.9.tgz#8f1cdd517972f76a3b928298f4c0747cd6fef25a"
   integrity sha512-H9ReOt+yqIJPCutkTYjFjlyK6WEMQYT9hLZMlWtOjFQY2ItppsWZ6RJf8Aw+jz5qTYceuHvFgPIaKOHtLAEWBw==
 
+"@types/node@>=12", "@types/node@>=12.0.0":
+  version "16.11.6"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-16.11.6.tgz#6bef7a2a0ad684cf6e90fcfe31cecabd9ce0a3ae"
+  integrity sha512-ua7PgUoeQFjmWPcoo9khiPum3Pd60k4/2ZGXt18sm2Slk0W0xZTqt5Y0Ny1NyBiN1EVQ/+FaF9NcY4Qe6rwk5w==
+
 "@types/node@^12.0.0":
   version "12.20.33"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-12.20.33.tgz#24927446e8b7669d10abacedd16077359678f436"
@@ -3336,6 +3396,11 @@
   dependencies:
     "@types/node" "*"
 
+"@types/retry@^0.12.0":
+  version "0.12.1"
+  resolved "https://registry.yarnpkg.com/@types/retry/-/retry-0.12.1.tgz#d8f1c0d0dc23afad6dc16a9e993a0865774b4065"
+  integrity sha512-xoDlM2S4ortawSWORYqsdU+2rxdh4LRW9ytc3zmT37RIKQh6IHyKwwtKhKis9ah8ol07DCkZxPt8BBvPjC6v4g==
+
 "@types/scheduler@*":
   version "0.16.2"
   resolved "https://registry.yarnpkg.com/@types/scheduler/-/scheduler-0.16.2.tgz#1a62f89525723dde24ba1b01b092bf5df8ad4d39"
@@ -4293,7 +4358,7 @@ axios@0.24.0:
   dependencies:
     follow-redirects "^1.14.4"
 
-axios@^0.21.4:
+axios@^0.21.1, axios@^0.21.4:
   version "0.21.4"
   resolved "https://registry.yarnpkg.com/axios/-/axios-0.21.4.tgz#c67b90dc0568e5c1cf2b0b858c43ba28e2eda575"
   integrity sha512-ut5vewkiu8jjGBdqpM44XxjuCjq9LAKeHVmoVfHVzy8eHgxxq8SbAVQNovDA8mVi05kP0Ea/n/UzcSHcTJQfNg==
@@ -7230,6 +7295,11 @@ event-target-shim@^5.0.0:
   resolved "https://registry.yarnpkg.com/event-target-shim/-/event-target-shim-5.0.1.tgz#5d4d3ebdf9583d63a5333ce2deb7480ab2b05789"
   integrity sha512-i/2XbnSz/uxRCU6+NdVJgKWDTM427+MqYbkQzD321DuCQJUqOuJKIA0IM2+W2xtYHdKOmZ4dR6fExsd4SXL+WQ==
 
+eventemitter3@^3.1.0:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.2.tgz#2d3d48f9c346698fce83a85d7d664e98535df6e7"
+  integrity sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q==
+
 eventemitter3@^4.0.0, eventemitter3@^4.0.4, eventemitter3@^4.0.7:
   version "4.0.7"
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-4.0.7.tgz#2de9b68f6528d5644ef5c59526a1b4a07306169f"
@@ -7754,7 +7824,7 @@ fork-ts-checker-webpack-plugin@4.1.6:
     tapable "^1.0.0"
     worker-rpc "^0.1.0"
 
-form-data@^2.3.1:
+form-data@^2.3.1, form-data@^2.5.0:
   version "2.5.1"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.5.1.tgz#f2cbec57b5e59e23716e128fe44d4e5dd23895f4"
   integrity sha512-m21N3WOmEEURgk6B9GLOE4RuWOFf28Lhh9qGYeNlGq4VDXUlJy2th2slBNU8Gp8EzloYZOibZJ7t5ecIrFSjVA==
@@ -9075,6 +9145,11 @@ is-docker@^2.0.0:
   resolved "https://registry.yarnpkg.com/is-docker/-/is-docker-2.2.1.tgz#33eeabe23cfe86f14bde4408a02c0cfb853acdaa"
   integrity sha512-F+i2BKsFrH66iaUFc0woD8sLy8getkwTwtOBjvs56Cx4CgJDeKQeqfz8wAYiSb8JOprWhHH5p77PbmYCvvUuXQ==
 
+is-electron@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/is-electron/-/is-electron-2.2.0.tgz#8943084f09e8b731b3a7a0298a7b5d56f6b7eef0"
+  integrity sha512-SpMppC2XR3YdxSzczXReBjqs2zGscWQpBIKqwXYBFic0ERaxNVgwLCHwOLZeESfdJQjX0RDvrJ1lBXX2ij+G1Q==
+
 is-error@^2.2.2:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/is-error/-/is-error-2.2.2.tgz#c10ade187b3c93510c5470a5567833ee25649843"
@@ -11918,6 +11993,14 @@ p-retry@^3.0.1:
   dependencies:
     retry "^0.12.0"
 
+p-retry@^4.0.0:
+  version "4.6.1"
+  resolved "https://registry.yarnpkg.com/p-retry/-/p-retry-4.6.1.tgz#8fcddd5cdf7a67a0911a9cf2ef0e5df7f602316c"
+  integrity sha512-e2xXGNhZOZ0lfgR9kL34iGlU8N/KO0xZnQxVEwdeOvpqNDQfdnxIYizvWtK8RglUa3bGqI8g0R/BdfzLMxRkiA==
+  dependencies:
+    "@types/retry" "^0.12.0"
+    retry "^0.13.1"
+
 p-timeout@^3.1.0, p-timeout@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/p-timeout/-/p-timeout-3.2.0.tgz#c7e17abc971d2a7962ef83626b35d635acf23dfe"
@@ -14090,6 +14173,11 @@ retry@^0.12.0:
   resolved "https://registry.yarnpkg.com/retry/-/retry-0.12.0.tgz#1b42a6266a21f07421d1b0b54b7dc167b01c013b"
   integrity sha1-G0KmJmoh8HQh0bC1S33BZ7AcATs=
 
+retry@^0.13.1:
+  version "0.13.1"
+  resolved "https://registry.yarnpkg.com/retry/-/retry-0.13.1.tgz#185b1587acf67919d63b357349e03537b2484658"
+  integrity sha512-XQBQ3I8W1Cge0Seh+6gjj03LbmRFWuoszgK9ooCpwYIrhhoO80pfq4cUkU5DkknwfOfFteRwlZ56PYOGYyFWdg==
+
 reusify@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/reusify/-/reusify-1.0.4.tgz#90da382b1e126efc02146e90845a88db12925d76"