Get Slack Manifest Link

{  "instructions": [    "string"  ],  "link": "string",  "tokens": {    "appId": "Basic Information → App Credentials → App ID",    "appToken": "Basic Information → App-Level Tokens → Create token with connections:write",    "botToken": "OAuth & Permissions → Bot User OAuth Token (xoxb-...)"  }}

{  "cause": {    "code": "api/invalid-json",    "detail": "string"  },  "message": "The request body is not valid JSON"}

{  "cause": {    "code": "auth/jwt-invalid",    "detail": "malformed"  },  "message": "Token verification failed"}

{  "cause": {    "code": "api/no-active-team",    "detail": "You must have an active team. Please select a team to continue."  },  "message": "No active team"}

{  "cause": {    "code": "api/unsupported-media-type",    "detail": "GET requests cannot have a content type header"  },  "message": "Unsupported Media Type"}