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0

I have to make a POST request to send a variable numbers of ArrayList to the server.
Here's an example of what the payload could look like

parameter_1 : [1,2,3]
parameter_2 : ["one", "two", "three"]

the names of the parameter and their count is not known in advance.

I created a test case using the following method

@FormUrlEncoded
@POST(register)
Call<TestApiResponse> TestApiCall(
 @Field("parameter_1[]") ArrayList<Integer> parameterOne,
 @Field("parameter_2[]") ArrayList<String> parameterTwo
);

and I called this function like this :

ArrayList<String> param1 = new ArrayList<Integer>();
param1.add(1); param1.add(2); param1.add(3);
ArrayList<String> param2 = new ArrayList<String>();
param2.add("one"); param2.add("two");

and then I intercepted the retrofit API call. I can see that the values are encoded as parameter_1%5B%5D, parameter_1%5B%5D, parameter_1%5B%5D and parameter_2%5B%5D, parameter_2%5B%5D, respectively for both the parameters.

Now the next step for me is to see if I can do the same API call but instead of hardcoding parameter names in the Retrofit Interface Declaration, do it dynamically.
I've done this before for variable number of parameters to send String values using FieldMap.
But when I create a function like this :

@FormUrlEncoded
@POST(register)
Call<LoginResponse> registerUserWithoutAvatar2(
 @FieldMap Map<String, ArrayList<String>> arrayParameters,
);

I invoke this function like this

Map<String, ArrayList<String>> param = new HashMap<>();
ArrayList<String> param1 = new ArrayList<String>();
param1.add(1); param1.add(2); param1.add(3);
param.put("parameter_1[]", param1)

when i intercept the API call, i see that Retrofit has encoded the field as one parameter param_1%5B%5D and its value is a encoded comma separated string that looks like 1%2C2%2C3.

Any clue how I could fix this? or if there's an alternate approach? Happy to provide more information.

java android retrofit2

share|improve this question

asked Mar 7 at 21:56

Denny GeorgeDenny George

1451213

add a comment | 

0

I have to make a POST request to send a variable numbers of ArrayList to the server.
Here's an example of what the payload could look like

parameter_1 : [1,2,3]
parameter_2 : ["one", "two", "three"]

the names of the parameter and their count is not known in advance.

I created a test case using the following method

@FormUrlEncoded
@POST(register)
Call<TestApiResponse> TestApiCall(
 @Field("parameter_1[]") ArrayList<Integer> parameterOne,
 @Field("parameter_2[]") ArrayList<String> parameterTwo
);

and I called this function like this :

ArrayList<String> param1 = new ArrayList<Integer>();
param1.add(1); param1.add(2); param1.add(3);
ArrayList<String> param2 = new ArrayList<String>();
param2.add("one"); param2.add("two");

and then I intercepted the retrofit API call. I can see that the values are encoded as parameter_1%5B%5D, parameter_1%5B%5D, parameter_1%5B%5D and parameter_2%5B%5D, parameter_2%5B%5D, respectively for both the parameters.

Now the next step for me is to see if I can do the same API call but instead of hardcoding parameter names in the Retrofit Interface Declaration, do it dynamically.
I've done this before for variable number of parameters to send String values using FieldMap.
But when I create a function like this :

@FormUrlEncoded
@POST(register)
Call<LoginResponse> registerUserWithoutAvatar2(
 @FieldMap Map<String, ArrayList<String>> arrayParameters,
);

I invoke this function like this

Map<String, ArrayList<String>> param = new HashMap<>();
ArrayList<String> param1 = new ArrayList<String>();
param1.add(1); param1.add(2); param1.add(3);
param.put("parameter_1[]", param1)

when i intercept the API call, i see that Retrofit has encoded the field as one parameter param_1%5B%5D and its value is a encoded comma separated string that looks like 1%2C2%2C3.

Any clue how I could fix this? or if there's an alternate approach? Happy to provide more information.

java android retrofit2

share|improve this question

asked Mar 7 at 21:56

Denny GeorgeDenny George

1451213

add a comment | 

I have to make a POST request to send a variable numbers of ArrayList to the server.
Here's an example of what the payload could look like

parameter_1 : [1,2,3]
parameter_2 : ["one", "two", "three"]

the names of the parameter and their count is not known in advance.

I created a test case using the following method

@FormUrlEncoded
@POST(register)
Call<TestApiResponse> TestApiCall(
 @Field("parameter_1[]") ArrayList<Integer> parameterOne,
 @Field("parameter_2[]") ArrayList<String> parameterTwo
);

and I called this function like this :

ArrayList<String> param1 = new ArrayList<Integer>();
param1.add(1); param1.add(2); param1.add(3);
ArrayList<String> param2 = new ArrayList<String>();
param2.add("one"); param2.add("two");

and then I intercepted the retrofit API call. I can see that the values are encoded as parameter_1%5B%5D, parameter_1%5B%5D, parameter_1%5B%5D and parameter_2%5B%5D, parameter_2%5B%5D, respectively for both the parameters.

Now the next step for me is to see if I can do the same API call but instead of hardcoding parameter names in the Retrofit Interface Declaration, do it dynamically.
I've done this before for variable number of parameters to send String values using FieldMap.
But when I create a function like this :

@FormUrlEncoded
@POST(register)
Call<LoginResponse> registerUserWithoutAvatar2(
 @FieldMap Map<String, ArrayList<String>> arrayParameters,
);

I invoke this function like this

Map<String, ArrayList<String>> param = new HashMap<>();
ArrayList<String> param1 = new ArrayList<String>();
param1.add(1); param1.add(2); param1.add(3);
param.put("parameter_1[]", param1)

when i intercept the API call, i see that Retrofit has encoded the field as one parameter param_1%5B%5D and its value is a encoded comma separated string that looks like 1%2C2%2C3.

Any clue how I could fix this? or if there's an alternate approach? Happy to provide more information.

java android retrofit2

share|improve this question

asked Mar 7 at 21:56

Denny GeorgeDenny George

1451213

parameter_1 : [1,2,3]
parameter_2 : ["one", "two", "three"]

@FormUrlEncoded
@POST(register)
Call<TestApiResponse> TestApiCall(
 @Field("parameter_1[]") ArrayList<Integer> parameterOne,
 @Field("parameter_2[]") ArrayList<String> parameterTwo
);

ArrayList<String> param1 = new ArrayList<Integer>();
param1.add(1); param1.add(2); param1.add(3);
ArrayList<String> param2 = new ArrayList<String>();
param2.add("one"); param2.add("two");

@FormUrlEncoded
@POST(register)
Call<LoginResponse> registerUserWithoutAvatar2(
 @FieldMap Map<String, ArrayList<String>> arrayParameters,
);

Map<String, ArrayList<String>> param = new HashMap<>();
ArrayList<String> param1 = new ArrayList<String>();
param1.add(1); param1.add(2); param1.add(3);
param.put("parameter_1[]", param1)

java android retrofit2

java android retrofit2

share|improve this question

asked Mar 7 at 21:56

Denny GeorgeDenny George

1451213

share|improve this question

asked Mar 7 at 21:56

Denny GeorgeDenny George

1451213

asked Mar 7 at 21:56

Denny GeorgeDenny George

1451213

asked Mar 7 at 21:56

Denny GeorgeDenny George

1451213