I have an ArrayList of custom objects, each with about 10 fields, that I already managed to upload to our server. The problem is that one of the fields is a String which contains a Base64-encoded string that I converted from a file, which the Retrofit Gson creater does not seem to like. This problem could be solved by just sending all the fields without the image, and then after that upload all the images using ftp, but it would be so much easier if I could just put the image in the object somehow.
Question: How can I send a Base64-encoded string as a field inside a custom object to a url using Retrofit?
#FormUrlEncoded
#POST("/UploadImages")
Call<ResponseBody> postImages(#Body ArrayListImage img);
//POJO CLASS
public class ArrayListImage {
#SerializedName("image")
#Expose
private ArrayList<String> image;
public ArrayListImage(ArrayList<String> image) {
this.image=image;
}
}
Below is the RequestBody code which i use to upload file using Retrofit:
RequestBody lRequestBody = RequestBody.create(MediaType.parse("multipart/form-data"), file);
MultipartBody.Part lFile = MultipartBody.Part.createFormData("file", file.getName(), lRequestBody);
MultipartBody.Part title = MultipartBody.Part.createFormData("title", file.getName());
MultipartBody.Part lFilenamebase64 = MultipartBody.Part.createFormData("filenamebase64", base64EncodedFileName);
To encode file name:
String base64EncodedFileName = Base64.encodeToString(file.getName().getBytes(Charsets.UTF_8), Base64.URL_SAFE | Base64.NO_WRAP);
I defined the api like:
#Multipart
#POST("/upload")
Observable<Response<ResponseBody>> uploadFile(#Part MultipartBody.Part file, #Part MultipartBody.Part title, #Part MultipartBody.Part base64EncodedFileName);
I hope it might help you.
//Convert Object list into json string.
Gson gson = new Gson();
String objListString = gson.toJson(objectList);
#FormUrlEncoded
#POST("********")
Call<JsonObject> sendObjectList(#Field("objListString") String objListString);
And at the web end parse string into json.
#enjoy
I need to upload an array of images on server using multi-part.and I Also want to give key to that array, otherwise server don't recognize the array. I have tried the solutions below, but these do not work:
Solution1 :
MultipartBody.Part[] array = new MultipartBody.Part[items.size()];
for(int i=0;i<items.size();i++){
File file = new File(items.get(i));
RequestBody requestBody = RequestBody.create(MediaType.parse("image/*"), file);
MultipartBody.Part filePart = MultipartBody.Part.createFormData("value_"
+ String.valueOf(uploadMissionRequestModel.getStepId()), file.getName(),
requestBody);
array[i]=filePart;
}
RequestBody apiKey = RequestBody.create(MediaType.parse("text/plain"),
uploadMissionRequestModel.getApiKey());
RequestBody stepId = RequestBody.create(MediaType.parse("text/plain"),
String.valueOf(uploadMissionRequestModel.getStepId()));
RequestBody missionId = RequestBody.create(MediaType.parse("text/plain"),
String.valueOf(uploadMissionRequestModel.getMissionId()));
RequestBody overWrite = RequestBody.create(MediaType.parse("text/plain"),
"yes");
Map<String, RequestBody> partMap = new HashMap<>();
partMap.put("api_token", apiKey);
partMap.put("MissionID", missionId);
partMap.put("overwrite", overWrite);
partMap.put("StepID", stepId);
ApiServices service = RestClient.getClient();
final Call<UploadMissionResponse> call = service.uploadFiles(partMap, array);
Solution2
RequestBody[] image_id = new RequestBody[items.size()];
for(int i=0;i<items.size();i++){
File file = new File(items.get(i));
RequestBody requestBody = RequestBody.create(MediaType.parse("image/*"), file);
image_id[i]=requestBody;
}
RequestBody apiKey = RequestBody.create(MediaType.parse("text/plain"),
uploadMissionRequestModel.getApiKey());
RequestBody stepId = RequestBody.create(MediaType.parse("text/plain"),
String.valueOf(uploadMissionRequestModel.getStepId()));
RequestBody missionId = RequestBody.create(MediaType.parse("text/plain"),
String.valueOf(uploadMissionRequestModel.getMissionId()));
RequestBody overWrite = RequestBody.create(MediaType.parse("text/plain"),
"yes");
Map<String, RequestBody> partMap = new HashMap<>();
partMap.put("api_token", apiKey);
partMap.put("MissionID", missionId);
partMap.put("overwrite", overWrite);
partMap.put("StepID", stepId);
Map<String, RequestBody[]> imageMap = new HashMap<>();
imageMap.put("value_8",image_id);
ApiServices service = RestClient.getClient();
final Call<UploadMissionResponse> call = service.uploadFiles(partMap, imageMap);
Please suggest, How I can pass array of images with key name using retrofit2.
My request method:
#Multipart
#POST("admin/assets/upload/")
Observable<UploadResponse> uploadFiles(#Part MultipartBody.Part... files);
Creating parts from array of uri's. All parts will have key 'files[]', the one my backend recognizes:
//UriHandle and OkioUtil are my own classes to handle both 'content' and 'file' uris
//files has type of Uri[]
final MultipartBody.Part[] parts = new MultipartBody.Part[files.length];
for (int i = 0; i < files.length; i++) {
final UriHandle handle = UriUtil.getUriHandle(context, files[i]);
final RequestBody body = OkioUtil.create(handle, mediaType);
parts[i] = MultipartBody.Part.createFormData("files[]", handle.name(), body);
}
Sending request:
api.uploadFiles(part)
.subscribeOn(...)
.observeOn(...)
.subscribe(result -> ...);
if I were you I would convert images to Base64 and send List<String> for images using your second solution.
#Multipart
#POST("/api/add-deal/")
public void addDeal(#Body Deal deal, #Part("image")TypedFile image,Callback<Response> callback);
I want to send only the image as multipart and the rest as is.Is there any possible way ? Even I tried to add TypedFile inside my Deal model but unable to annotate with #part
Yes, it is possible with Partmap annotation using hash map. For example-
#Multipart
#POST("/api/add-deal/")
Call<Response> addDeal(#PartMap
HashMap<String, RequestBody> hashMap);
In hashMap you can add no of url parameters as key and set your values using RequestBody class type. see how to convert String and Image to RequestBody.
public static RequestBody ImageToRequestBody(File file) { //for image file to request body
return RequestBody.create(MediaType.parse("image/*"),file);
}
public static RequestBody StringToRequestBody(String string){ // for string to request body
return RequestBody.create(MediaType.parse("text/plain"),string);
}
add params to hashmap-
hashMap.put("photo",ImageToRequestBody(imageFile)); //your imageFile to Request body.
hashMap.put("user_id",StringToRequestBody("113"));
//calling addDeal method
apiInterface.addDeal(hashMap);
Hope this helpful.
It seems that you can send your #Body as TypedString.
For example, convert your "#Body Deal deal" into JSON String, and send it as TypedString.
Details: How to send multipart/form-data with Retrofit?
#Multipart
#POST("/api/v1/articles/")
Observable<Response> uploadFile(#Part("author") TypedString authorString,
#Part("photo") TypedFile photoFile);
This worked for me: POST Multipart Form Data using Retrofit 2.0 including image
public interface ApiInterface {
#Multipart
#POST("/api/Accounts/editaccount")
Call<User> editUser (#Header("Authorization") String authorization, #Part("file\"; filename=\"pp.png\" ") RequestBody file , #Part("FirstName") RequestBody fname, #Part("Id") RequestBody id);
}
File file = new File(imageUri.getPath());
RequestBody fbody = RequestBody.create(MediaType.parse("image/*"), file);
RequestBody name = RequestBody.create(MediaType.parse("text/plain"), firstNameField.getText().toString());
RequestBody id = RequestBody.create(MediaType.parse("text/plain"), AZUtils.getUserId(this));
Call<User> call = client.editUser(AZUtils.getToken(this), fbody, name, id);
call.enqueue(new Callback<User>() {
#Override
public void onResponse(retrofit.Response<User> response, Retrofit retrofit) {
AZUtils.printObject(response.body());
}
#Override
public void onFailure(Throwable t) {
t.printStackTrace();
}
});
I'm trying to upload an image to the server using Retrofit2, but am very unsure on how to do so.
The documentation left me a bit confused and I have tried the solution mentioned here, but it did not work for me.
Here is the code snippet I'm currently using, which doesn't send anything to the server:
// Service
#Multipart
#POST("0.1/gallery/{galleryId}/addImage/")
Call<ResponseBody> addImage(#Path("galleryId") String galleryId, #Part MultipartBody.Part image);
//Call
MultipartBody.Part imagePart = MultipartBody.Part.createFormData("image", file.getName(), RequestBody.create(MediaType.parse("image/*"), file));
Call<ResponseBody> call = service. addImage("1234567890", imagePart);
However, I'm able to do it just fine using Retrofit 1.9 with a TypedFile.
Am I doing something wrong or Retrofit2 has some issue with this sort of thing?
I've struggled for a while with this to, I ended up with this solution to finally make it work... Hopes it helps:
Map<String, RequestBody> map = new HashMap<>();
map.put("Id",Utils.toRequestBody("0"));
map.put("Name",Utils.toRequestBody("example"));
String types = path.substring((path.length() - 3), (path.length()));
File file = new File(pathOfYourFile);
RequestBody fileBody = RequestBody.create(MediaType.parse("image/jpg"), file);
map.put("file\"; filename=\"cobalt." + types + "\"", fileBody);
Call<ResponseBody> call = greenServices.upload(map);
In the greenServices interface:
#Multipart
#POST(Constants.URL_UPLOAD)
Observable<Response<ResponseBody>> uploadNew(#PartMap Map<String, RequestBody> params);
hi please check how we can send image in retrofit2.In form of part you need to send image and other data as well.
public interface ApiInterface {
#Multipart
#POST("0.1/gallery/{galleryId}/addImage/")
Call<User> checkapi (#Part("file\"; filename=\"pp.png\" ") RequestBody file , #Part("FirstName") RequestBody fname, #Part("Id") RequestBody id);
}
File file = new File(imageUri.getPath());
RequestBody fbody = RequestBody.create(MediaType.parse("image/*"), file);
RequestBody name = RequestBody.create(MediaType.parse("text/plain"), firstNameField.getText().toString());
RequestBody id = RequestBody.create(MediaType.parse("text/plain"), AZUtils.getUserId(this));
Call<User> call = client.editUser(AZUtils.getToken(this), fbody, name, id);
call.enqueue(new Callback<User>() {
#Override
public void onResponse(retrofit.Response<User> response, Retrofit retrofit) {
AZUtils.printObject(response.body());
}
#Override
public void onFailure(Throwable t) {
t.printStackTrace();
}
});
Thanks hope this will help you.
Image Multipart in class type object.
case 1. (Which I had done)
Service params:
{"id":"1","name":"vishal","image/file":""}
At that time my API of Retrofit
#Multipart
#POST("webservice")
Call<SignUpResp> loadSignupMultipart(#Part("description") RequestBody description, #Part MultipartBody.Part file, #QueryMap HashMap<String, String> params);
case 2. (Where I have Problem) with #Body class<UploadwithImage>
{
"methodName":"submitLevel1Part2Icon",
"userid":"150",
"headerData":{
"fiction":{
"icon_type":"1",
"icon_id":"3"},
"nonfiction":{
"icon_type":"2",
"icon_id":"4"},
"relation":{
"icon_type":"3",
"icon_id":"0",
"name":"Ronak",
"relative_image":"<File>",
"relation_id":"3"},
"self":{
"icon_type":"4",
"icon_id":"0"}
}
}
I am trying this API
#Multipart
#POST("webservice")
Call<SubmitLevel1Part2IconResp> loadLevel1halfIconswithImage(#Part("description") RequestBody description, #Part MultipartBody.Part file, #Body UploadwithImage uploadImage);
Java side
/**
* code for multipart
*/
// create RequestBody instance from file
RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), fileUpload);
// MultipartBody.Part is used to send also the actual filename
MultipartBody.Part body = MultipartBody.Part.createFormData("methodName[headerData][relation][relative_image]", fileUpload.getName(), requestFile);
// add another part within the multipart request
String descriptionString = "hello, this is description speaking";
RequestBody description = RequestBody.create(MediaType.parse("multipart/form-data"), descriptionString);
call = service.loadLevel1halfIconswithImage(description, body, levelOneHalfIcons);
I don't know why but it returns error like:
"#Body parameters cannot be used with form or multi-part encoding"
Any Help would Be Appreciated.
Change your method to
#Multipart
#POST("users/{id}/user_photos")
Call<models.UploadResponse> uploadPhoto(#Path("id") int userId, #PartMap Map<String, RequestBody> params);
Now to create your request parameters,
//All the String parameters, you have to put like
Map<String, RequestBody> map = new HashMap<>();
map.put("methodName", toRequestBody(methodName));
map.put("userid", toRequestBody(userId));
map.put("relation", toRequestBody(relation));
map.put("icon_type", toRequestBody(iconType));
map.put("icon_id", toRequestBody(iconId));
map.put("name", toRequestBody(name));
map.put("relation_id", toRequestBody(relationId));
//To put your image file you have to do
File file = new File("file_name");
RequestBody fileBody = RequestBody.create(MediaType.parse("image/png"), file);
map.put("relative_image\"; filename=\"some_file_name.png\"", fileBody);
// This method converts String to RequestBody
public static RequestBody toRequestBody (String value) {
RequestBody body = RequestBody.create(MediaType.parse("text/plain"), value);
return body ;
}
//To send your request
call = service.loadLevel1halfIconswithImage(description, params);
In case you do not want to use PartMap, you can simply pass them as parameters. Check my answer https://stackoverflow.com/a/37052548/1320616 to get some clue on sending image file with request.
As simple way, I have done like this:
I have tested by changing
Call<Result> resultCall = service.uploadImage(body);
to
Call<Result> resultCall = service.uploadImage(body, result); where result is
Result.java class (Response) of my API:
public class Result {
#SerializedName("result")
#Expose
private String result;
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
#SerializedName("value")
#Expose
private String value;
/**
* #return The result
*/
public String getResult() {
return result;
}
/**
* #param result The result
*/
public void setResult(String result) {
this.result = result;
}
}
and created object like:
Result result = new Result();
result.setResult("success");
result.setValue("my value");
You can change your class as per your need then pass object when you send request. So your ApiService class will be like:
ApiService.java
/**
* #author Pratik Butani on 23/4/16.
*/
public interface ApiService {
/*
Retrofit get annotation with our URL
And our method that will return us the List of Contacts
*/
#Multipart
#POST("upload.php")
Call<Result> uploadImage(#Part MultipartBody.Part file, #Part("result") Result result);
}
and My PHP code is:
<?php
$file_path = "";
$var = $_POST['result']; //here I m getting JSON
$file_path = $file_path . basename( $_FILES['uploaded_file']['name']);
if(move_uploaded_file($_FILES['uploaded_file']['tmp_name'], $file_path)) {
$result = array("result" => "success", "value" => $var);
} else{
$result = array("result" => "error");
}
echo json_encode($result);
?>
Hope it will helps you. Thank you.
You can also use a Map with RequestBody as value and string as keys to add parameters and you can send this using Multipart and PartMap.
Check the following code, hope it will help :
#Multipart
#POST("/add")
Call<ResponseBody> addDocument(#PartMap Map<String,RequestBody> params);
Map<String, RequestBody> map = new HashMap<>();
map.put("user_id", RequestBody.create(MediaType.parse("multipart/form-data"), SessionManager.getInstance().getCurrentUserId()));
map.put("doc_name", RequestBody.create(MediaType.parse("multipart/form-data"), CommonUtils.removeExtension(textFile.getName())));
map.put("doc_category", RequestBody.create(MediaType.parse("multipart/form-data"), category));
map.put("doc_image_file", RequestBody.create(MediaType.parse("multipart/form-data"), imageFile));
map.put("doc_text_content", RequestBody.create(MediaType.parse("multipart/form-data"), body));
map.put("doc_update_time", RequestBody.create(MediaType.parse("multipart/form-data"), "" + new Date(textFile.lastModified())));
We can add all request parameter in multipart body builder with specified type like in below one image file. I have set media type parse multipart/form-data and some other parameter I have set media type parse text/plain. This builder will build to make Multipart Body and can send by using body annotation in multipart body.
#Multipart
#POST("user/update")
Call<ResponseBody> addDocument(##Part MultipartBody file);
final MultipartBody.Builder requestBodyBuilder = new MultipartBody.Builder()
.setType(MultipartBody.FORM);
requestBodyBuilder.addFormDataPart("doc_image_file", imageFile.getName(),
RequestBody.create(MediaType.parse("multipart/form-data"), imageFile));
requestBodyBuilder.addFormDataPart("user_id", null, RequestBody.create(MediaType.parse("text/plain"),"12"));
requestBodyBuilder.addFormDataPart("doc_name", null, RequestBody.create(MediaType.parse("text/plain"),"myfile"));
requestBodyBuilder.addFormDataPart("doc_category", null, RequestBody.create(MediaType.parse("text/plain"),category));
requestBodyBuilder.addFormDataPart("doc_image_file", imageFile.getName(),RequestBody.create(MediaType.parse("multipart/form-data"),imageFile));
requestBodyBuilder.addFormDataPart("doc_text_content", null, RequestBody.create(MediaType.parse("text/plain"),body));
RequestBody multipartBody = requestBodyBuilder.build();
Here is my json request format is :
{
"task":{
"category_id":"1",
"price":"10",
"description":"1",
"task_videos_attributes":[
{
"link":"video file goes here",
"size":"100x100"
}
]
}
}
// my request becomes
HashMap<String, RequestBody> task = new HashMap();
task.put("task[category_id]", createPartFromString(categoryId));
task.put("task[price]", createPartFromString("" + etPrice.getText().toString()));
task.put("task[description]", createPartFromString("" + etDescription.getText().toString()));
// for videos file list
final List<MultipartBody.Part> body = new ArrayList<>();
for (int i = 0; i < videos.size(); i++) {
task.put("task[task_videos_attributes][" + i+ "][size]", createPartFromString("100x100"));
File videoFile = new File(videos.get(i));
RequestBody requestBody = RequestBody.create(MediaType.parse("video/mp4"), videoFile);
MultipartBody.Part fileToUpload = MultipartBody.Part.createFormData("task[task_videos_attributes][" + i + "][link]", videoFile.getName(), requestBody);
body.add(fileToUpload);
}
// here is a final call
new RestClient(this).getInstance().get().postTask(body, task).enqueue(callback);
// This function converts my string to request body
#NonNull
private RequestBody createPartFromString(String descriptionString) {
if (descriptionString == null)
return RequestBody.create(MultipartBody.FORM, "");
return RequestBody.create(
MultipartBody.FORM, descriptionString);
}
Hope this helps you...
Just follow how the web browser is doing multipart. They put nested keys in "[]" and give key to the images too.
Call<SubmitLevel1Part2IconResp> loadLevel1halfIconswithImage(#Part("headerdata[relation][icon_type]") RequestBody icon_type, #Part("headerdata[relation][name]") RequestBody name, #Part MultipartBody.Part file);
And then in java
// MultipartBody.Part is used to send also the actual filename
MultipartBody.Part body = MultipartBody.Part.createFormData("headerdata[relation][relative_image]", fileUpload.getName(), requestFile);
call = service.loadLevel1halfIconswithImage(icon_type, name, body);
https://www.linkedin.com/pulse/retrofit-2-how-upload-multiple-files-server-mahesh-gawale
I guess the best answer to this question can be found here. It worked perfectly for me.
This is the example of uploading an array of files using retrofit in Android.
This is how the service will look like
public interface ApiService {
#POST("/event/store")
Call<ResModel> event_store(#Body RequestBody file);
}
This is how the Client class look like
public class ApiClient {
public static final String API_BASE_URL = "api base url";
private static OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
private static Retrofit.Builder builder = new Retrofit.Builder().baseUrl(API_BASE_URL).addConverterFactory(GsonConverterFactory.create());
public static ApiService createService(Class<ApiService> serviceClass)
{
Retrofit retrofit = builder.client(httpClient.build()).build();
return retrofit.create(serviceClass);
}
}
Upload like this in activity or fragment or where you want
ApiService service = ApiClient.createService(ApiService.class);
MultipartBody.Builder builder = new MultipartBody.Builder();
builder.setType(MultipartBody.FORM);
builder.addFormDataPart("event_name", "xyz");
builder.addFormDataPart("desc", "Lorem ipsum");
// Single Image
builder.addFormDataPart("files",file1.getName(),RequestBody.create(MediaType.parse("image/*"), file1));
// Multiple Images
for (int i = 0; i <filePaths.size() ; i++) {
File file = new File(filePaths.get(i));
RequestBody requestImage = RequestBody.create(MediaType.parse("multipart/form-data"), file);
builder.addFormDataPart("event_images[]", file.getName(), RequestBody.create(MediaType.parse("multipart/form-data"), file));
}
MultipartBody requestBody = builder.build();
Call<ResModel> call = service.event_store(requestBody);
call.enqueue(new Callback<ResponseBody>() {
#Override
public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
Toast.makeText(getBaseContext(),"All fine",Toast.LENGTH_SHORT).show();
}
#Override
public void onFailure(Call<ResponseBody> call, Throwable t) {
Toast.makeText(getBaseContext(),t.getMessage(),Toast.LENGTH_SHORT).show();
}
});
Note: filePaths.size() is a Arraylist of pickup Images Paths.
I hope this post is useful to you. kindly share your feedback as a comment here.
this works for me.
What I did was add every additional params using:
MultipartBody.Part Partname = MultipartBody.Part.createFormData("ParamName", "Value");
Mabe you don't need to create another body, but just add others params apart from the file or whatever you are sending. finally at the interface I put as a params every bodypart that I need.
#Multipart
#POST("api/service/uploadVideo")
Call<ResponseBody> uploadVideoToServer(
#Part MultipartBody.Part video,
#Part MultipartBody.Part param2,
#Part MultipartBody.Part param3 ....
);