func ExampleLambda_CreateFunction() {
svc := lambda.New(session.New())
params := &lambda.CreateFunctionInput{
Code: &lambda.FunctionCode{ // Required
S3Bucket: aws.String("S3Bucket"),
S3Key: aws.String("S3Key"),
S3ObjectVersion: aws.String("S3ObjectVersion"),
ZipFile: []byte("PAYLOAD"),
},
FunctionName: aws.String("FunctionName"), // Required
Handler: aws.String("Handler"), // Required
Role: aws.String("RoleArn"), // Required
Runtime: aws.String("Runtime"), // Required
Description: aws.String("Description"),
MemorySize: aws.Int64(1),
Publish: aws.Bool(true),
Timeout: aws.Int64(1),
}
resp, err := svc.CreateFunction(params)
if err != nil {
// Print the error, cast err to awserr.Error to get the Code and
// Message from an error.
fmt.Println(err.Error())
return
}
// Pretty-print the response data.
fmt.Println(resp)
}
func ExampleSQS_ReceiveMessage() {
svc := sqs.New(session.New())
params := &sqs.ReceiveMessageInput{
QueueUrl: aws.String("String"), // Required
AttributeNames: []*string{
aws.String("QueueAttributeName"), // Required
// More values...
},
MaxNumberOfMessages: aws.Int64(1),
MessageAttributeNames: []*string{
aws.String("MessageAttributeName"), // Required
// More values...
},
VisibilityTimeout: aws.Int64(1),
WaitTimeSeconds: aws.Int64(1),
}
resp, err := svc.ReceiveMessage(params)
if err != nil {
// Print the error, cast err to awserr.Error to get the Code and
// Message from an error.
fmt.Println(err.Error())
return
}
// Pretty-print the response data.
fmt.Println(resp)
}
// Retrieve generates a new set of temporary credentials using STS.
func (p *AssumeRoleProvider) Retrieve() (credentials.Value, error) {
// Apply defaults where parameters are not set.
if p.RoleSessionName == "" {
// Try to work out a role name that will hopefully end up unique.
p.RoleSessionName = fmt.Sprintf("%d", time.Now().UTC().UnixNano())
}
if p.Duration == 0 {
// Expire as often as AWS permits.
p.Duration = DefaultDuration
}
roleOutput, err := p.Client.AssumeRole(&sts.AssumeRoleInput{
DurationSeconds: aws.Int64(int64(p.Duration / time.Second)),
RoleArn: aws.String(p.RoleARN),
RoleSessionName: aws.String(p.RoleSessionName),
ExternalId: p.ExternalID,
})
if err != nil {
return credentials.Value{}, err
}
// We will proactively generate new credentials before they expire.
p.SetExpiration(*roleOutput.Credentials.Expiration, p.ExpiryWindow)
return credentials.Value{
AccessKeyID: *roleOutput.Credentials.AccessKeyId,
SecretAccessKey: *roleOutput.Credentials.SecretAccessKey,
SessionToken: *roleOutput.Credentials.SessionToken,
}, nil
}
func ExampleSQS_ChangeMessageVisibilityBatch() {
svc := sqs.New(session.New())
params := &sqs.ChangeMessageVisibilityBatchInput{
Entries: []*sqs.ChangeMessageVisibilityBatchRequestEntry{ // Required
{ // Required
Id: aws.String("String"), // Required
ReceiptHandle: aws.String("String"), // Required
VisibilityTimeout: aws.Int64(1),
},
// More values...
},
QueueUrl: aws.String("String"), // Required
}
resp, err := svc.ChangeMessageVisibilityBatch(params)
if err != nil {
// Print the error, cast err to awserr.Error to get the Code and
// Message from an error.
fmt.Println(err.Error())
return
}
// Pretty-print the response data.
fmt.Println(resp)
}
func BenchmarkCodegenIterator(b *testing.B) {
reqNum := 0
db := benchDb()
db.Handlers.Unmarshal.PushBack(func(r *request.Request) {
r.Data = benchResps[reqNum]
reqNum++
})
input := &dynamodb.ListTablesInput{Limit: aws.Int64(2)}
iter := func(fn func(*dynamodb.ListTablesOutput, bool) bool) error {
page, _ := db.ListTablesRequest(input)
for ; page != nil; page = page.NextPage() {
page.Send()
out := page.Data.(*dynamodb.ListTablesOutput)
if result := fn(out, !page.HasNextPage()); page.Error != nil || !result {
return page.Error
}
}
return nil
}
for i := 0; i < b.N; i++ {
reqNum = 0
iter(func(p *dynamodb.ListTablesOutput, last bool) bool {
return true
})
}
}
func (infra *Infrastructure) createLambdaFunction(region, roleArn string, payload []byte) error {
config := aws.NewConfig().WithRegion(region)
svc := lambda.New(session.New(), config)
_, err := svc.GetFunction(&lambda.GetFunctionInput{
FunctionName: aws.String("goad"),
})
if err != nil {
if awsErr, ok := err.(awserr.Error); ok {
if awsErr.Code() == "ResourceNotFoundException" {
_, err := svc.CreateFunction(&lambda.CreateFunctionInput{
Code: &lambda.FunctionCode{
ZipFile: payload,
},
FunctionName: aws.String("goad"),
Handler: aws.String("index.handler"),
Role: aws.String(roleArn),
Runtime: aws.String("nodejs"),
MemorySize: aws.Int64(1536),
Publish: aws.Bool(true),
Timeout: aws.Int64(300),
})
if err != nil {
if awsErr, ok := err.(awserr.Error); ok {
// Calling this function too soon after creating the role might
// fail, so we should retry after a little while.
// TODO: limit the number of retries.
if awsErr.Code() == "InvalidParameterValueException" {
time.Sleep(time.Second)
return infra.createLambdaFunction(region, roleArn, payload)
}
}
return err
}
}
}
}
return nil
}
// Receive a result, or timeout in 1 second
func (adaptor SQSAdaptor) Receive() *AggData {
params := &sqs.ReceiveMessageInput{
QueueUrl: aws.String(adaptor.QueueURL),
MaxNumberOfMessages: aws.Int64(1),
VisibilityTimeout: aws.Int64(1),
WaitTimeSeconds: aws.Int64(1),
}
resp, err := adaptor.Client.ReceiveMessage(params)
if err != nil {
fmt.Println(err.Error())
return nil
}
if len(resp.Messages) == 0 {
return nil
}
item := resp.Messages[0]
deleteParams := &sqs.DeleteMessageInput{
QueueUrl: aws.String(adaptor.QueueURL),
ReceiptHandle: aws.String(*item.ReceiptHandle),
}
_, delerr := adaptor.Client.DeleteMessage(deleteParams)
if delerr != nil {
fmt.Println(err.Error())
return nil
}
result, jsonerr := resultFromJSON(*item.Body)
if jsonerr != nil {
fmt.Println(err.Error())
return nil
}
return &result
}
// Use DynamoDB methods for simplicity
func TestPaginationEachPage(t *testing.T) {
db := dynamodb.New(unit.Session)
tokens, pages, numPages, gotToEnd := []string{}, []string{}, 0, false
reqNum := 0
resps := []*dynamodb.ListTablesOutput{
{TableNames: []*string{aws.String("Table1"), aws.String("Table2")}, LastEvaluatedTableName: aws.String("Table2")},
{TableNames: []*string{aws.String("Table3"), aws.String("Table4")}, LastEvaluatedTableName: aws.String("Table4")},
{TableNames: []*string{aws.String("Table5")}},
}
db.Handlers.Send.Clear() // mock sending
db.Handlers.Unmarshal.Clear()
db.Handlers.UnmarshalMeta.Clear()
db.Handlers.ValidateResponse.Clear()
db.Handlers.Build.PushBack(func(r *request.Request) {
in := r.Params.(*dynamodb.ListTablesInput)
if in == nil {
tokens = append(tokens, "")
} else if in.ExclusiveStartTableName != nil {
tokens = append(tokens, *in.ExclusiveStartTableName)
}
})
db.Handlers.Unmarshal.PushBack(func(r *request.Request) {
r.Data = resps[reqNum]
reqNum++
})
params := &dynamodb.ListTablesInput{Limit: aws.Int64(2)}
req, _ := db.ListTablesRequest(params)
err := req.EachPage(func(p interface{}, last bool) bool {
numPages++
for _, t := range p.(*dynamodb.ListTablesOutput).TableNames {
pages = append(pages, *t)
}
if last {
if gotToEnd {
assert.Fail(t, "last=true happened twice")
}
gotToEnd = true
}
return true
})
assert.Equal(t, []string{"Table2", "Table4"}, tokens)
assert.Equal(t, []string{"Table1", "Table2", "Table3", "Table4", "Table5"}, pages)
assert.Equal(t, 3, numPages)
assert.True(t, gotToEnd)
assert.Nil(t, err)
}
func ExampleLambda_UpdateFunctionConfiguration() {
svc := lambda.New(session.New())
params := &lambda.UpdateFunctionConfigurationInput{
FunctionName: aws.String("FunctionName"), // Required
Description: aws.String("Description"),
Handler: aws.String("Handler"),
MemorySize: aws.Int64(1),
Role: aws.String("RoleArn"),
Timeout: aws.Int64(1),
}
resp, err := svc.UpdateFunctionConfiguration(params)
if err != nil {
// Print the error, cast err to awserr.Error to get the Code and
// Message from an error.
fmt.Println(err.Error())
return
}
// Pretty-print the response data.
fmt.Println(resp)
}
func BenchmarkEachPageIterator(b *testing.B) {
reqNum := 0
db := benchDb()
db.Handlers.Unmarshal.PushBack(func(r *request.Request) {
r.Data = benchResps[reqNum]
reqNum++
})
input := &dynamodb.ListTablesInput{Limit: aws.Int64(2)}
for i := 0; i < b.N; i++ {
reqNum = 0
req, _ := db.ListTablesRequest(input)
req.EachPage(func(p interface{}, last bool) bool {
return true
})
}
}
func ExampleLambda_ListFunctions() {
svc := lambda.New(session.New())
params := &lambda.ListFunctionsInput{
Marker: aws.String("String"),
MaxItems: aws.Int64(1),
}
resp, err := svc.ListFunctions(params)
if err != nil {
// Print the error, cast err to awserr.Error to get the Code and
// Message from an error.
fmt.Println(err.Error())
return
}
// Pretty-print the response data.
fmt.Println(resp)
}
func ExampleSQS_SendMessageBatch() {
svc := sqs.New(session.New())
params := &sqs.SendMessageBatchInput{
Entries: []*sqs.SendMessageBatchRequestEntry{ // Required
{ // Required
Id: aws.String("String"), // Required
MessageBody: aws.String("String"), // Required
DelaySeconds: aws.Int64(1),
MessageAttributes: map[string]*sqs.MessageAttributeValue{
"Key": { // Required
DataType: aws.String("String"), // Required
BinaryListValues: [][]byte{
[]byte("PAYLOAD"), // Required
// More values...
},
BinaryValue: []byte("PAYLOAD"),
StringListValues: []*string{
aws.String("String"), // Required
// More values...
},
StringValue: aws.String("String"),
},
// More values...
},
},
// More values...
},
QueueUrl: aws.String("String"), // Required
}
resp, err := svc.SendMessageBatch(params)
if err != nil {
// Print the error, cast err to awserr.Error to get the Code and
// Message from an error.
fmt.Println(err.Error())
return
}
// Pretty-print the response data.
fmt.Println(resp)
}
func ExampleLambda_UpdateEventSourceMapping() {
svc := lambda.New(session.New())
params := &lambda.UpdateEventSourceMappingInput{
UUID: aws.String("String"), // Required
BatchSize: aws.Int64(1),
Enabled: aws.Bool(true),
FunctionName: aws.String("FunctionName"),
}
resp, err := svc.UpdateEventSourceMapping(params)
if err != nil {
// Print the error, cast err to awserr.Error to get the Code and
// Message from an error.
fmt.Println(err.Error())
return
}
// Pretty-print the response data.
fmt.Println(resp)
}
// Use DynamoDB methods for simplicity
func TestPaginationEarlyExit(t *testing.T) {
db := dynamodb.New(unit.Session)
numPages, gotToEnd := 0, false
reqNum := 0
resps := []*dynamodb.ListTablesOutput{
{TableNames: []*string{aws.String("Table1"), aws.String("Table2")}, LastEvaluatedTableName: aws.String("Table2")},
{TableNames: []*string{aws.String("Table3"), aws.String("Table4")}, LastEvaluatedTableName: aws.String("Table4")},
{TableNames: []*string{aws.String("Table5")}},
}
db.Handlers.Send.Clear() // mock sending
db.Handlers.Unmarshal.Clear()
db.Handlers.UnmarshalMeta.Clear()
db.Handlers.ValidateResponse.Clear()
db.Handlers.Unmarshal.PushBack(func(r *request.Request) {
r.Data = resps[reqNum]
reqNum++
})
params := &dynamodb.ListTablesInput{Limit: aws.Int64(2)}
err := db.ListTablesPages(params, func(p *dynamodb.ListTablesOutput, last bool) bool {
numPages++
if numPages == 2 {
return false
}
if last {
if gotToEnd {
assert.Fail(t, "last=true happened twice")
}
gotToEnd = true
}
return true
})
assert.Equal(t, 2, numPages)
assert.False(t, gotToEnd)
assert.Nil(t, err)
}
for i := 0; i < b.N; i++ {
buf := &bytes.Buffer{}
encoder := json.NewEncoder(buf)
if err := encoder.Encode(params); err != nil {
b.Fatal("Unexpected error", err)
}
}
}
var restjsonBuildParms = &elastictranscoder.CreateJobInput{
Input: &elastictranscoder.JobInput{ // Required
AspectRatio: aws.String("AspectRatio"),
Container: aws.String("JobContainer"),
DetectedProperties: &elastictranscoder.DetectedProperties{
DurationMillis: aws.Int64(1),
FileSize: aws.Int64(1),
FrameRate: aws.String("FloatString"),
Height: aws.Int64(1),
Width: aws.Int64(1),
},
Encryption: &elastictranscoder.Encryption{
InitializationVector: aws.String("ZeroTo255String"),
Key: aws.String("Base64EncodedString"),
KeyMd5: aws.String("Base64EncodedString"),
Mode: aws.String("EncryptionMode"),
},
FrameRate: aws.String("FrameRate"),
Interlaced: aws.String("Interlaced"),
Key: aws.String("Key"),
Resolution: aws.String("Resolution"),
// Use DynamoDB methods for simplicity
func TestPaginationQueryPage(t *testing.T) {
db := dynamodb.New(unit.Session)
tokens, pages, numPages, gotToEnd := []map[string]*dynamodb.AttributeValue{}, []map[string]*dynamodb.AttributeValue{}, 0, false
reqNum := 0
resps := []*dynamodb.QueryOutput{
{
LastEvaluatedKey: map[string]*dynamodb.AttributeValue{"key": {S: aws.String("key1")}},
Count: aws.Int64(1),
Items: []map[string]*dynamodb.AttributeValue{
{
"key": {S: aws.String("key1")},
},
},
},
{
LastEvaluatedKey: map[string]*dynamodb.AttributeValue{"key": {S: aws.String("key2")}},
Count: aws.Int64(1),
Items: []map[string]*dynamodb.AttributeValue{
{
"key": {S: aws.String("key2")},
},
},
},
{
LastEvaluatedKey: map[string]*dynamodb.AttributeValue{},
Count: aws.Int64(1),
Items: []map[string]*dynamodb.AttributeValue{
{
"key": {S: aws.String("key3")},
},
},
},
}
db.Handlers.Send.Clear() // mock sending
db.Handlers.Unmarshal.Clear()
db.Handlers.UnmarshalMeta.Clear()
db.Handlers.ValidateResponse.Clear()
db.Handlers.Build.PushBack(func(r *request.Request) {
in := r.Params.(*dynamodb.QueryInput)
if in == nil {
tokens = append(tokens, nil)
} else if len(in.ExclusiveStartKey) != 0 {
tokens = append(tokens, in.ExclusiveStartKey)
}
})
db.Handlers.Unmarshal.PushBack(func(r *request.Request) {
r.Data = resps[reqNum]
reqNum++
})
params := &dynamodb.QueryInput{
Limit: aws.Int64(2),
TableName: aws.String("tablename"),
}
err := db.QueryPages(params, func(p *dynamodb.QueryOutput, last bool) bool {
numPages++
for _, item := range p.Items {
pages = append(pages, item)
}
if last {
if gotToEnd {
assert.Fail(t, "last=true happened twice")
}
gotToEnd = true
}
return true
})
assert.Nil(t, err)
assert.Equal(t,
[]map[string]*dynamodb.AttributeValue{
{"key": {S: aws.String("key1")}},
{"key": {S: aws.String("key2")}},
}, tokens)
assert.Equal(t,
[]map[string]*dynamodb.AttributeValue{
{"key": {S: aws.String("key1")}},
{"key": {S: aws.String("key2")}},
{"key": {S: aws.String("key3")}},
}, pages)
assert.Equal(t, 3, numPages)
assert.True(t, gotToEnd)
assert.Nil(t, params.ExclusiveStartKey)
}