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vendor/github.com/aws/aws-sdk-go/example/service/dynamodb/scanItems/README.md

@@ -0,0 +1,47 @@
+# Example
+
+`scanItems` is an example how to use Amazon DynamoDB's Scan API operation with the SDK's `dynamodbattributes.UnmarshalListOfMaps` to unmarshal the Scan response's `Items` `[]map[string]*dynamodb.AttributeValue` field. This unmarshaler can be used with all `[]map[string]*dynamodb.AttributeValue` type fields.
+
+## Go Type
+
+The `Item` time will be used by the example to unmarshal the DynamoDB table's items to.
+
+```go
+type Item struct {
+	Key  int
+	Desc string
+	Data map[string]interface{}
+}
+```
+Use Go tags to define what the name is of the attribute in your DynamoDB table. See [AWS SDK for Go API Reference: Marshal](https://docs.aws.amazon.com/sdk-for-go/api/service/dynamodb/dynamodbattribute/#Marshal) for more information.
+
+In DynamoDB the structure of the item to be returned will be:
+```json
+{
+  "Data": {
+    "Value 1": "abc",
+    "Value 2": 1234567890
+  },
+  "Desc": "First ddb item",
+  "Key": 1
+}
+```
+
+## Usage
+
+`go run -tags example scanItems.go -table "<table_name>" -region "<optional_region>"`
+
+## Output
+
+```
+0: Key: 123, Desc: An item in the DynamoDB table
+	Num Data Values: 0
+1: Key: 2, Desc: Second ddb item
+	Num Data Values: 2
+	- "A Field": 123
+	- "Another Field": abc
+2: Key: 1, Desc: First ddb item
+	Num Data Values: 2
+	- "Value 1": abc
+	- "Value 2": 1234567890
+```

vendor/github.com/aws/aws-sdk-go/example/service/dynamodb/scanItems/scanItems.go

@@ -0,0 +1,98 @@
+// +build example
+
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/dynamodb"
+	"github.com/aws/aws-sdk-go/service/dynamodb/dynamodbattribute"
+)
+
+func exitWithError(err error) {
+	fmt.Fprintln(os.Stderr, err)
+	os.Exit(1)
+}
+
+func main() {
+	cfg := Config{}
+	if err := cfg.Load(); err != nil {
+		exitWithError(fmt.Errorf("failed to load config, %v", err))
+	}
+
+	// Create the config specifying the Region for the DynamoDB table.
+	// If Config.Region is not set the region must come from the shared
+	// config or AWS_REGION environment variable.
+	awscfg := &aws.Config{}
+	if len(cfg.Region) > 0 {
+		awscfg.WithRegion(cfg.Region)
+	}
+
+	// Create the session that the DynamoDB service will use.
+	sess := session.Must(session.NewSession(awscfg))
+
+	// Create the DynamoDB service client to make the query request with.
+	svc := dynamodb.New(sess)
+
+	// Build the query input parameters
+	params := &dynamodb.ScanInput{
+		TableName: aws.String(cfg.Table),
+	}
+	if cfg.Limit > 0 {
+		params.Limit = aws.Int64(cfg.Limit)
+	}
+
+	// Make the DynamoDB Query API call
+	result, err := svc.Scan(params)
+	if err != nil {
+		exitWithError(fmt.Errorf("failed to make Query API call, %v", err))
+	}
+
+	items := []Item{}
+
+	// Unmarshal the Items field in the result value to the Item Go type.
+	err = dynamodbattribute.UnmarshalListOfMaps(result.Items, &items)
+	if err != nil {
+		exitWithError(fmt.Errorf("failed to unmarshal Query result items, %v", err))
+	}
+
+	// Print out the items returned
+	for i, item := range items {
+		fmt.Printf("%d: Key: %d, Desc: %s\n", i, item.Key, item.Desc)
+		fmt.Printf("\tNum Data Values: %d\n", len(item.Data))
+		for k, v := range item.Data {
+			fmt.Printf("\t- %q: %v\n", k, v)
+		}
+	}
+}
+
+type Item struct {
+	Key  int
+	Desc string
+	Data map[string]interface{}
+}
+
+type Config struct {
+	Table  string // required
+	Region string // optional
+	Limit  int64  // optional
+
+}
+
+func (c *Config) Load() error {
+	flag.Int64Var(&c.Limit, "limit", 0, "Limit is the max items to be returned, 0 is no limit")
+	flag.StringVar(&c.Table, "table", "", "Table to Query on")
+	flag.StringVar(&c.Region, "region", "", "AWS Region the table is in")
+	flag.Parse()
+
+	if len(c.Table) == 0 {
+		flag.PrintDefaults()
+		return fmt.Errorf("table name is required.")
+	}
+
+	return nil
+}

vendor/github.com/aws/aws-sdk-go/example/service/dynamodb/unitTest/README.md

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+# Example
+You can instantiate `*dynamodb.DynamoDB` and pass that as a parameter to all
+methods connecting to DynamoDB, or as `unitTest` demonstrates, create your own
+`type` and pass it along as a field.
+
+## Test-compatible DynamoDB field
+If you use `*dynamodb.DynamoDB` as a field, you will be unable to unit test it,
+as documented in #88. Cast it instead as `dynamodbiface.DynamoDBAPI`:
+
+```go
+type ItemGetter struct {
+		DynamoDB dynamodbiface.DynamoDBAPI
+}
+```
+
+## Querying actual DynamoDB
+You'll need an `*aws.Config` and `*session.Session` for these to work correctly:
+
+```go
+// Setup
+var getter = new(ItemGetter)
+var config *aws.Config = &aws.Config{Region: aws.String("us-west-2"),}
+var sess *session.Session = session.NewSession(config)
+var svc *dynamodb.DynamoDB = dynamodb.New()
+getter.DynamoDB = dynamodbiface.DynamoDBAPI(svc)
+// Finally
+getter.DynamoDB.GetItem(/* ... */)
+```
+
+## Querying in tests
+Construct a `fakeDynamoDB` and add the necessary methods for each of those
+structs (custom ones for `ItemGetter` and [whatever methods you're using for
+DynamoDB](https://github.com/aws/aws-sdk-go/blob/master/service/dynamodb/dynamodbiface/interface.go)),
+and you're good to go!
+
+```go
+type fakeDynamoDB struct {
+		dynamodbiface.DynamoDBAPI
+}
+var getter = new(ItemGetter)
+getter.DynamoDB = &fakeDynamoDB{}
+// And to run it (assuming you've mocked fakeDynamoDB.GetItem)
+getter.DynamoDB.GetItem(/* ... */)
+```
+
+## Output
+```
+$ go test -tags example -cover
+PASS
+coverage: 100.0% of statements
+ok		_/Users/shatil/workspace/aws-sdk-go/example/service/dynamodb/unitTest	0.008s
+```

vendor/github.com/aws/aws-sdk-go/example/service/dynamodb/unitTest/unitTest.go

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+// +build example
+
+// Package unitTest demonstrates how to unit test, without needing to pass a
+// connector to every function, code that uses DynamoDB.
+package unitTest
+
+import (
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/dynamodb"
+	"github.com/aws/aws-sdk-go/service/dynamodb/dynamodbattribute"
+	"github.com/aws/aws-sdk-go/service/dynamodb/dynamodbiface"
+)
+
+// ItemGetter can be assigned a DynamoDB connector like:
+//	svc := dynamodb.DynamoDB(sess)
+//	getter.DynamoDB = dynamodbiface.DynamoDBAPI(svc)
+type ItemGetter struct {
+	DynamoDB dynamodbiface.DynamoDBAPI
+}
+
+// Get a value from a DynamoDB table containing entries like:
+// {"id": "my primary key", "value": "valuable value"}
+func (ig *ItemGetter) Get(id string) (value string) {
+	var input = &dynamodb.GetItemInput{
+		Key: map[string]*dynamodb.AttributeValue{
+			"id": {
+				S: aws.String(id),
+			},
+		},
+		TableName: aws.String("my_table"),
+		AttributesToGet: []*string{
+			aws.String("value"),
+		},
+	}
+	if output, err := ig.DynamoDB.GetItem(input); err == nil {
+		if _, ok := output.Item["value"]; ok {
+			dynamodbattribute.Unmarshal(output.Item["value"], &value)
+		}
+	}
+	return
+}

vendor/github.com/aws/aws-sdk-go/example/service/dynamodb/unitTest/unitTest_test.go

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+// +build example
+
+// Unit tests for package unitTest.
+package unitTest
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/dynamodb"
+	"github.com/aws/aws-sdk-go/service/dynamodb/dynamodbiface"
+)
+
+// A fakeDynamoDB instance. During testing, instatiate ItemGetter, then simply
+// assign an instance of fakeDynamoDB to it.
+type fakeDynamoDB struct {
+	dynamodbiface.DynamoDBAPI
+	payload map[string]string // Store expected return values
+	err     error
+}
+
+// Mock GetItem such that the output returned carries values identical to input.
+func (fd *fakeDynamoDB) GetItem(input *dynamodb.GetItemInput) (*dynamodb.GetItemOutput, error) {
+	output := new(dynamodb.GetItemOutput)
+	output.Item = make(map[string]*dynamodb.AttributeValue)
+	for key, value := range fd.payload {
+		output.Item[key] = &dynamodb.AttributeValue{
+			S: aws.String(value),
+		}
+	}
+	return output, fd.err
+}
+
+func TestItemGetterGet(t *testing.T) {
+	expectedKey := "expected key"
+	expectedValue := "expected value"
+	getter := new(ItemGetter)
+	getter.DynamoDB = &fakeDynamoDB{
+		payload: map[string]string{"id": expectedKey, "value": expectedValue},
+	}
+	if actualValue := getter.Get(expectedKey); actualValue != expectedValue {
+		t.Errorf("Expected %q but got %q", expectedValue, actualValue)
+	}
+}
+
+// When DynamoDB.GetItem returns a non-nil error, expect an empty string.
+func TestItemGetterGetFail(t *testing.T) {
+	expectedKey := "expected key"
+	expectedValue := "expected value"
+	getter := new(ItemGetter)
+	getter.DynamoDB = &fakeDynamoDB{
+		payload: map[string]string{"id": expectedKey, "value": expectedValue},
+		err:     errors.New("any error"),
+	}
+	if actualValue := getter.Get(expectedKey); len(actualValue) > 0 {
+		t.Errorf("Expected %q but got %q", expectedValue, actualValue)
+	}
+}