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ViewsHow to POST multipart/form-data using Fuel for Kotlin?
I need to send a POST request to a server. I'm supposed to pass some parameters and an image. I am able to do this from Postman, but I can't do this on my Android app (latest SDK) using Fuel.
This is the code I'm using:
val formData = listOf("name" to "name")
val (_, _, result) = Fuel.upload("http://10.0.2.2:3000/test", parameters = formData)
.source { request, url -> imageFile } // type is File
.responseObject<CustomResponse>()
This is the postman screenshot:
I don't have access to the backend code, just some logs. It seems the request body is empty and the file also doesn't get uploaded. How can I do this? I'm at a loss.
I also tried passing the parameters as a jsonBody, this does submit the body, but the content type is not multipart/form-data and the image is still missing.
This JS code works:
let formData = new FormData();
formData.append('name', 'name');
formData.append('image', this.file);
axios.post(`${API_URL}/test`, formData, {
headers: {
'Content-Type': 'multipart/form-data'
}
}).then(console.log).catch(console.log)
Edit: I also tried passing the file as a DataPart, still nothing.
3 answers
Answer question0
After some struggle I found out what would work:
val file = FileDataPart.from("path_to_your_file", name = "image")
val (_, _, result) = Fuel.upload("http://10.0.2.2:3000/test")
.add(file)
.responseObject<CustomResponse>()
I didn't need name-name part in my case but I would try to add InlineDataPart
0
After some try finally I found the solution. Try this I think it will help.
val params = listOf("email" to "test@email.com", "pass" to "123456")
Fuel.upload("http://your-api-url.com/login", Method.POST, params)
.responseString { _, _, result ->
when (result) {
is Result.Failure -> {
print(result.getException().toString())
}
is Result.Success -> {
val data = result.get()
print(data)
}
}
}
0
I managed to send a POST request to a server. I passed a parameter and an image.
//Prepare POST body
val postBody = listOf("name" to "name")
//Call the API.
val (_, _, result) = Fuel.upload("http://10.0.2.2:3000/test", Method.POST , postBody)
.add(BlobDataPart(myInputStream, name = "image", filename = "default.jpg", contentType = "image/jpeg"))
.responseString()
//If failed, then print exception. If successful, then print result.
when (result) {
is Result.Failure -> {
println(result.getException())
}
is Result.Success -> {
println(result.get())
}
}
You can read the related documentation here.