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add azure storage tables keyvalue implementation.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,215 @@ | ||
| // Copyright 2021 Nitric Pty Ltd. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package keyvalue | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
|
|
||
| "github.com/Azure/azure-sdk-for-go/sdk/azidentity" | ||
| "github.com/Azure/azure-sdk-for-go/sdk/data/aztables" | ||
| "github.com/nitrictech/nitric/cloud/aws/runtime/resource" | ||
| "github.com/nitrictech/nitric/cloud/azure/runtime/env" | ||
| document "github.com/nitrictech/nitric/core/pkg/decorators/keyvalue" | ||
| grpc_errors "github.com/nitrictech/nitric/core/pkg/grpc/errors" | ||
| keyvaluepb "github.com/nitrictech/nitric/core/pkg/proto/keyvalue/v1" | ||
| "github.com/pkg/errors" | ||
| "google.golang.org/grpc/codes" | ||
| "google.golang.org/protobuf/types/known/structpb" | ||
| ) | ||
|
|
||
| // DynamoKeyValueService - an AWS DynamoDB implementation of the Nitric Document Service | ||
| type AzureStorageTableKeyValueService struct { | ||
| clientFactory AzureStorageClientFactory | ||
| } | ||
|
|
||
| var _ keyvaluepb.KeyValueServer = &AzureStorageTableKeyValueService{} | ||
|
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| type AztableEntity struct { | ||
| aztables.Entity | ||
|
|
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| Content *structpb.Struct | ||
| } | ||
|
|
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| // Get a document from the DynamoDB table | ||
| func (s *AzureStorageTableKeyValueService) Get(ctx context.Context, req *keyvaluepb.KeyValueGetRequest) (*keyvaluepb.KeyValueGetResponse, error) { | ||
| newErr := grpc_errors.ErrorsWithScope("AzureStorageTableKeyValueService.Get") | ||
| client, err := s.clientFactory(req.Key.Store) | ||
|
|
||
| if err != nil { | ||
| return nil, newErr( | ||
| codes.Internal, | ||
| "Unable to create client", | ||
| err, | ||
| ) | ||
| } | ||
|
|
||
| err = document.ValidateKey(req.Key) | ||
| if err != nil { | ||
| return nil, newErr( | ||
| codes.InvalidArgument, | ||
| "Invalid key", | ||
| err, | ||
| ) | ||
| } | ||
|
|
||
| response, err := client.GetEntity(ctx, req.Key.Store, req.Key.Key, nil) | ||
| if err != nil { | ||
| return nil, newErr( | ||
| codes.InvalidArgument, | ||
| "failed to call aztables:GetEntity", | ||
| err, | ||
| ) | ||
| } | ||
|
|
||
| var entity AztableEntity | ||
| err = json.Unmarshal(response.Value, &entity) | ||
| if err != nil { | ||
| return nil, newErr( | ||
| codes.Internal, | ||
| "Unable to convert value to pb struct", | ||
| err, | ||
| ) | ||
| } | ||
|
|
||
| return &keyvaluepb.KeyValueGetResponse{ | ||
| Value: &keyvaluepb.Value{ | ||
| Key: req.Key, | ||
| Content: entity.Content, | ||
| }, | ||
| }, nil | ||
| } | ||
|
|
||
| // Set a document in the DynamoDB table | ||
| func (s *AzureStorageTableKeyValueService) Set(ctx context.Context, req *keyvaluepb.KeyValueSetRequest) (*keyvaluepb.KeyValueSetResponse, error) { | ||
| newErr := grpc_errors.ErrorsWithScope("AzureStorageTableKeyValueService.Set") | ||
| client, err := s.clientFactory(req.Key.Store) | ||
|
|
||
| if err != nil { | ||
| return nil, newErr( | ||
| codes.Internal, | ||
| "Unable to create client", | ||
| err, | ||
| ) | ||
| } | ||
|
|
||
| if err := document.ValidateKey(req.Key); err != nil { | ||
| return nil, newErr( | ||
| codes.InvalidArgument, | ||
| "invalid key", | ||
| err, | ||
| ) | ||
| } | ||
|
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| entity := AztableEntity{ | ||
| Entity: aztables.Entity{ | ||
| PartitionKey: req.Key.Store, | ||
| RowKey: req.Key.Key, | ||
| }, | ||
| Content: req.Content, | ||
| } | ||
|
|
||
| entityJson, err := json.Marshal(entity) | ||
| if err != nil { | ||
| return nil, newErr( | ||
| codes.Internal, | ||
| "Unable to struct to json", | ||
| err, | ||
| ) | ||
| } | ||
|
|
||
| _, err = client.UpsertEntity(ctx, entityJson, nil) | ||
| if err != nil { | ||
| return nil, newErr( | ||
| codes.Internal, | ||
| "Unable to call aztables.UpsertEntity", | ||
| err, | ||
| ) | ||
| } | ||
|
|
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| return &keyvaluepb.KeyValueSetResponse{}, nil | ||
| } | ||
|
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| // Delete a document from the DynamoDB table | ||
| func (s *AzureStorageTableKeyValueService) Delete(ctx context.Context, req *keyvaluepb.KeyValueDeleteRequest) (*keyvaluepb.KeyValueDeleteResponse, error) { | ||
| newErr := grpc_errors.ErrorsWithScope("AzureStorageTableKeyValueService.Delete") | ||
| client, err := s.clientFactory(req.Key.Store) | ||
|
|
||
| if err != nil { | ||
| return nil, newErr( | ||
| codes.Internal, | ||
| "Unable to create client", | ||
| err, | ||
| ) | ||
| } | ||
|
|
||
| if err := document.ValidateKey(req.Key); err != nil { | ||
| return nil, newErr( | ||
| codes.InvalidArgument, | ||
| "invalid key", | ||
| err, | ||
| ) | ||
| } | ||
|
|
||
| _, err = client.DeleteEntity(ctx, req.Key.Store, req.Key.Key, nil) | ||
| if err != nil { | ||
| return nil, newErr( | ||
| codes.Internal, | ||
| "failed to call aztables.DeleteEntity", | ||
| err, | ||
| ) | ||
| } | ||
|
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| return &keyvaluepb.KeyValueDeleteResponse{}, nil | ||
| } | ||
|
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| type AzureStorageClientFactory func(tableName string) (*aztables.Client, error) | ||
|
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| func newStorageTablesClientFactory(creds *azidentity.DefaultAzureCredential, storageAccountName string) AzureStorageClientFactory { | ||
| return func(tableName string) (*aztables.Client, error) { | ||
| serviceURL := fmt.Sprintf("https://%s.table.core.windows.net/%s", storageAccountName, tableName) | ||
| return aztables.NewClient(serviceURL, creds, nil) | ||
| } | ||
| } | ||
|
|
||
| // New creates a new AWS DynamoDB implementation of a DocumentServiceServer | ||
| func New(provider resource.AwsResourceProvider) (*AzureStorageTableKeyValueService, error) { | ||
| storageAccountName := env.AZURE_STORAGE_ACCOUNT_NAME.String() | ||
| if storageAccountName == "" { | ||
| return nil, fmt.Errorf("failed to determine Azure Storage Account name, environment variable not set") | ||
| } | ||
|
|
||
| cred, err := azidentity.NewDefaultAzureCredential(nil) | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, "failed to locate default azure credential") | ||
| } | ||
|
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| return &AzureStorageTableKeyValueService{ | ||
| clientFactory: newStorageTablesClientFactory(cred, storageAccountName), | ||
| }, nil | ||
|
|
||
| } | ||
|
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| // NewWithClient creates a DocumentServiceServer with an given DynamoDB client instance. | ||
| // | ||
| // Primarily used for testing | ||
| func NewWithClient(provider resource.AwsResourceProvider, clientFactory AzureStorageClientFactory) (*AzureStorageTableKeyValueService, error) { | ||
| return &AzureStorageTableKeyValueService{ | ||
| // storageAccountName: storageAccountName, | ||
| // defaultCredential: cred, | ||
| clientFactory: clientFactory, | ||
| }, nil | ||
| } |
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