Automatic upload S3Object to bucket fails about aws-mobile-appsync-sdk-ios

[andrewjzhou]

I am having the same issue here. I followed the updated instructions but still have no success with uploading to S3 automatically through AppSync. I checked to upload the same file URI with TransferUtility and everything works.

[rohandubal]

Hi @end3r117

Thanks for reporting this! I will investigate this issue and post an update here.

Thanks,
Rohan

[rohandubal]

Hi @end3r117

Does your mutation with complex objects have the s3 file at the root level? Currently the SDK checks for the file to be at the root level for the upload to happen.

Have you defined the local schema to use the mutation to use S3ObjectInput? For example, the .graphql file in the local iOS dev environment should have a mutation which looks like this:

mutation CreatePost($postInput:PostInput!, $image:S3ObjectInput!){
    createPost(postMetadata:$postInput, image:$image){
        id
    }
}

The decision of whether the mutation is of type graphQLMutationWithS3Object is made early over here:
https://github.com/awslabs/aws-mobile-appsync-sdk-ios/blob/master/AWSAppSyncClient/AWSAppSyncClient.swift#L470

This record is then persisted and retrieved. If the record is not being classified as graphQLMutationWithS3Object it is most likely that the input is not in the expected format; which is validated by this method:

aws-mobile-appsync-sdk-ios/AWSAppSyncClient/AWSAppSyncClient.swift

Line 487 in 6fed183

private func checkAndFetchS3Object(variables:GraphQLMap?) -> (bucket: String, key: String, region: String, contentType: String, localUri: String)? {

Also have you followed the documentation posted here:
https://awslabs.github.io/aws-mobile-appsync-sdk-ios/#complex-objects

The doc above contains step by step info on how to add complex objects to your schema.

Thanks,
Rohan

[end3r117]

Hey, Rohan. I am out of town for the next week and a half but I will try your suggestions, check file locations, and reply with an update ASAP. Please do not close this issue due to my temporary idleness!

Thanks for the help

[rohandubal]

We also have updated instructions which walk through the schema setup and client code here: https://awslabs.github.io/aws-mobile-appsync-sdk-ios/#complex-objects which you can try. Closing due to lack of activity.

[palpatim]

Commenting on this old issue to note that this issue is fixed as of release 2.9.0.