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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| /* | ||
| * MinIO Go Library for Amazon S3 Compatible Cloud Storage | ||
| * Copyright 2023 MinIO, Inc. | ||
| * | ||
| * 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 minio | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "errors" | ||
| "io" | ||
| "mime/multipart" | ||
| "net/http" | ||
| "strconv" | ||
| "strings" | ||
| "time" | ||
| ) | ||
|
|
||
| // PutObjectFanOutRequest this is the request structure sent | ||
| // to the server to fan-out the stream to multiple objects. | ||
| type PutObjectFanOutRequest struct { | ||
| Key string `json:"key"` | ||
| UserMetadata map[string]string `json:"metadata,omitempty"` | ||
| UserTags map[string]string `json:"tags,omitempty"` | ||
| ContentType string `json:"contentType,omitempty"` | ||
| ContentEncoding string `json:"contentEncoding,omitempty"` | ||
| ContentDisposition string `json:"contentDisposition,omitempty"` | ||
| ContentLanguage string `json:"contentLanguage,omitempty"` | ||
| CacheControl string `json:"cacheControl,omitempty"` | ||
| Retention RetentionMode `json:"retention,omitempty"` | ||
| RetainUntilDate *time.Time `json:"retainUntil,omitempty"` | ||
| } | ||
|
|
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| // PutObjectFanOutResponse this is the response structure sent | ||
| // by the server upon success or failure for each object | ||
| // fan-out keys. Additionally this response carries ETag, | ||
| // VersionID and LastModified for each object fan-out. | ||
| type PutObjectFanOutResponse struct { | ||
| Key string `json:"key"` | ||
| ETag string `json:"etag,omitempty"` | ||
| VersionID string `json:"versionId,omitempty"` | ||
| LastModified *time.Time `json:"lastModified,omitempty"` | ||
| Error error `json:"error,omitempty"` | ||
| } | ||
|
|
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| // PutObjectFanOut - is a variant of PutObject instead of writing a single object from a single | ||
| // stream multiple objects are written, defined via a list of PutObjectFanOutRequests. Each entry | ||
| // in PutObjectFanOutRequest carries an object keyname and its relevant metadata if any. `Key` is | ||
| // mandatory, rest of the other options in PutObjectFanOutRequest are optional. | ||
| func (c *Client) PutObjectFanOut(ctx context.Context, bucket string, body io.Reader, fanOutReq ...PutObjectFanOutRequest) ([]PutObjectFanOutResponse, error) { | ||
| if len(fanOutReq) == 0 { | ||
| return nil, errInvalidArgument("fan out requests cannot be empty") | ||
| } | ||
|
|
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| policy := NewPostPolicy() | ||
| policy.SetBucket(bucket) | ||
| policy.SetKey(strconv.FormatInt(time.Now().UnixNano(), 16)) | ||
|
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| // Expires in 15 minutes. | ||
| policy.SetExpires(time.Now().UTC().Add(15 * time.Minute)) | ||
|
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| url, formData, err := c.PresignedPostPolicy(ctx, policy) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
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| r, w := io.Pipe() | ||
|
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| req, err := http.NewRequest(http.MethodPost, url.String(), r) | ||
| if err != nil { | ||
| w.Close() | ||
| return nil, err | ||
| } | ||
|
|
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| var b strings.Builder | ||
| enc := json.NewEncoder(&b) | ||
| for _, req := range fanOutReq { | ||
| if req.Key == "" { | ||
| w.Close() | ||
| return nil, errors.New("PutObjectFanOutRequest.Key is mandatory and cannot be empty") | ||
| } | ||
| if err = enc.Encode(&req); err != nil { | ||
| w.Close() | ||
| return nil, err | ||
| } | ||
| } | ||
|
|
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| mwriter := multipart.NewWriter(w) | ||
| req.Header.Add("Content-Type", mwriter.FormDataContentType()) | ||
|
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| go func() { | ||
| defer w.Close() | ||
| defer mwriter.Close() | ||
|
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| for k, v := range formData { | ||
| if err := mwriter.WriteField(k, v); err != nil { | ||
| return | ||
| } | ||
| } | ||
|
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| if err := mwriter.WriteField("x-minio-fanout-list", b.String()); err != nil { | ||
| return | ||
| } | ||
|
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| mw, err := mwriter.CreateFormFile("file", "fanout-content") | ||
| if err != nil { | ||
| return | ||
| } | ||
|
|
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| if _, err = io.Copy(mw, body); err != nil { | ||
| return | ||
| } | ||
| }() | ||
|
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| resp, err := c.do(req) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| defer closeResponse(resp) | ||
|
|
||
| if resp.StatusCode != http.StatusOK { | ||
| return nil, httpRespToErrorResponse(resp, bucket, "fanout-content") | ||
| } | ||
|
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| dec := json.NewDecoder(resp.Body) | ||
| fanOutResp := make([]PutObjectFanOutResponse, 0, len(fanOutReq)) | ||
| for dec.More() { | ||
| var m PutObjectFanOutResponse | ||
| if err = dec.Decode(&m); err != nil { | ||
| return nil, err | ||
| } | ||
| fanOutResp = append(fanOutResp, m) | ||
| } | ||
|
|
||
| return fanOutResp, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| //go:build example | ||
| // +build example | ||
|
|
||
| /* | ||
| * MinIO Go Library for Amazon S3 Compatible Cloud Storage | ||
| * Copyright 2023 MinIO, Inc. | ||
| * | ||
| * 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. | ||
| */ | ||
|
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| package main | ||
|
|
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "log" | ||
| "os" | ||
|
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| "github.com/minio/minio-go/v7" | ||
| "github.com/minio/minio-go/v7/pkg/credentials" | ||
| ) | ||
|
|
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| func main() { | ||
| const ( | ||
| // Note: These constants are dummy values, | ||
| // please replace them with values for your setup. | ||
| YOURACCESSKEYID = "Q3AM3UQ867SPQQA43P2F" | ||
| YOURSECRETACCESSKEY = "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG" | ||
| YOURENDPOINT = "play.min.io" | ||
| YOURBUCKET = "mybucket" // 'mc mb play/mybucket' if it does not exist. | ||
| ) | ||
|
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| // Requests are always secure (HTTPS) by default. Set secure=false to enable insecure (HTTP) access. | ||
| // This boolean value is the last argument for New(). | ||
|
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| // New returns an Amazon S3 compatible client object. API compatibility (v2 or v4) is automatically | ||
| // determined based on the Endpoint value. | ||
| minioClient, err := minio.New(YOURENDPOINT, &minio.Options{ | ||
| Creds: credentials.NewStaticV4(YOURACCESSKEYID, YOURSECRETACCESSKEY, ""), | ||
| Secure: true, | ||
| }) | ||
| if err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
|
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| filePath := "my-testfile" // Specify a local file that we will upload | ||
|
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| // Open a local file that we will upload | ||
| file, err := os.Open(filePath) | ||
| if err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
| defer file.Close() | ||
|
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| fanOutReq := []minio.PutObjectFanOutRequest{ | ||
| minio.PutObjectFanOutRequest{Key: "my1-prefix/1.txt"}, | ||
| minio.PutObjectFanOutRequest{Key: "my1-prefix/2.txt"}, | ||
| minio.PutObjectFanOutRequest{Key: "my1-prefix/3.txt"}, | ||
| minio.PutObjectFanOutRequest{Key: "my1-prefix/4.txt"}, | ||
| minio.PutObjectFanOutRequest{Key: "my1-prefix/5.txt"}, | ||
| minio.PutObjectFanOutRequest{Key: "my1-prefix/6.txt"}, | ||
| } | ||
|
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| fanOutResp, err := minioClient.PutObjectFanOut(context.Background(), "testbucket", file, fanOutReq...) | ||
| if err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
|
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| for _, resp := range fanOutResp { | ||
| fmt.Println(resp) | ||
| } | ||
| } |