Gen 2 quickstart app throws error "The provided configuration is not a valid json"

[hangoocn]

Description

I have follow this gen2 quickstart to create an flutter app, but experiences two issues that make this not work:

1. The doc's sample code to add auth is importing 'amplifyconfiguration.dart' but the actual file generated by sandbox is 'amplify_outputs.dart', also 'Amplify.configure(outputs)' should be Amplify.configure(amplifyConfig)
2. After fix the fthe above, and run the app, it throws error "The provided configuration is not a valid json. Check underlyingException." for line "Amplify.configure(amplifyConfig)"

This happens when running the app in windows or Chrome.

Categories

• Analytics
• API (REST)
• API (GraphQL)
• Auth
• Authenticator
• DataStore
• Notifications (Push)
• Storage

Steps to Reproduce

Just follow the exact steps of the quick start: https://docs.amplify.aws/flutter/start/quickstart/ to create a flutter app

Screenshots

Platforms

• iOS
• Android
• Web
• macOS
• Windows
• Linux

Flutter Version

3.19.5

Amplify Flutter Version

1.8.0 or 1.0.0 (which is in the doc)

Deployment Method

Amplify CLI

Schema

amplify_outputs.dart


const amplifyConfig = '''{
  "auth": {
    "user_pool_id": "us-west-2_ChIP1YTjX",
    "aws_region": "us-west-2",
    "user_pool_client_id": "5r9ckh2si4fqtpqdfj4n58h87g",
    "identity_pool_id": "us-west-2:8333ada3-dec3-4dac-80d5-0145f63b26ae",
    "standard_required_attributes": [
      "email"
    ],
    "username_attributes": [
      "email"
    ],
    "user_verification_types": [
      "email"
    ],
    "password_policy": {
      "min_length": 8,
      "require_numbers": true,
      "require_lowercase": true,
      "require_uppercase": true,
      "require_symbols": true
    },
    "unauthenticated_identities_enabled": true
  },
  "data": {
    "url": "https://b6k6zcee3zcf7bwvoubrzwwtha.appsync-api.us-west-2.amazonaws.com/graphql",
    "aws_region": "us-west-2",
    "default_authorization_type": "AWS_IAM",
    "authorization_types": [
      "AMAZON_COGNITO_USER_POOLS"
    ],
    "model_introspection": {
      "version": 1,
      "models": {
        "Todo": {
          "name": "Todo",
          "fields": {
            "id": {
              "name": "id",
              "isArray": false,
              "type": "ID",
              "isRequired": true,
              "attributes": []
            },
            "content": {
              "name": "content",
              "isArray": false,
              "type": "String",
              "isRequired": false,
              "attributes": []
            },
            "createdAt": {
              "name": "createdAt",
              "isArray": false,
              "type": "AWSDateTime",
              "isRequired": false,
              "attributes": [],
              "isReadOnly": true
            },
            "updatedAt": {
              "name": "updatedAt",
              "isArray": false,
              "type": "AWSDateTime",
              "isRequired": false,
              "attributes": [],
              "isReadOnly": true
            }
          },
          "syncable": true,
          "pluralName": "Todos",
          "attributes": [
            {
              "type": "model",
              "properties": {}
            },
            {
              "type": "auth",
              "properties": {
                "rules": [
                  {
                    "allow": "public",
                    "provider": "iam",
                    "operations": [
                      "create",
                      "update",
                      "delete",
                      "read"
                    ]
                  }
                ]
              }
            }
          ],
          "primaryKeyInfo": {
            "isCustomPrimaryKey": false,
            "primaryKeyFieldName": "id",
            "sortKeyFieldNames": []
          }
        }
      },
      "enums": {},
      "nonModels": {}
    }
  },
  "version": "1"
}''';

[Jordan-Nelson]

Hello @hangoocn - This appears to be a documentation issue. The command should include --config-version 0

npx ampx sandbox --outputs-format dart ----outputs-out-dir lib --config-version 0

[hangoocn]

Thanks @Jordan-Nelson , it is working when I add --outputs-version 0.