Ytukyg

I am having the following scenario:

1. i have a Loopback service (Core) that has a remote method POST /Core/{id}/upload (accessible to public)

Core.remoteMethod('upload', {
accepts: [
{
arg: 'id',
type: 'string',
description: 'The Entity instance ID.',
required: true,
http: {source: 'path'}
},
{
arg: 'req',
type: 'object',
required: true,
description: 'The request object.',
http: {source: 'req'}
}
],
returns: {
arg: 'output',
type: '$new_EntityPostResponseProps',
root: true,
description: 'Returns the entity instances that was updated.'
},
description: 'Upload a resource to the specified resource.',
documented: true,
http: {
verb: 'patch',
path: '/:id/upload'
}
});

2. i have another Loopback service (Entities) that has a remote method
   POST /Entities/{id}/upload (not accessible to public)

Entities.remoteMethod('upload', {
accepts: [
{
arg: 'id',
type: 'string',
description: 'The Entity instance ID.',
required: true,
http: {source: 'path'}
},
{
arg: 'user',
type: 'string',
required: true,
description: 'The User instance ID.',
http: {source: 'query'}
},
{
arg: 'files',
type: 'string',
required: true,
description: 'The request.',
http: {source: 'form'}
}
],
returns: {
arg: 'output',
type: 'Entities',
root: true,
description: 'Returns the entity instance that was updated.'
},
description: 'Update the updated Entity instance.',
documented: true,
http: {
verb: 'patch',
path: '/:id/upload'
}
});

3. i use loopback-connector-swagger to connect the two services


4. i use multer to handle multipart/form-data requests

I have the following problem:

1. i upload a file using the POST /Core/{id}/upload endpoint


2. the sent file is received on the Core service in the following format:

{ fieldname: 'file', originalname: 'quickstart.mp4', encoding: '7bit',
mimetype: 'video/mp4', buffer: <Buffer 68 65 6c 6c 6f 20 42 6c 6f
62 20 53 44 4b 20 4e 49 43 55 20 56 52 45 41 20 41 73 74 61...>,
size: 29 }

3. I then do a JSON.stringify(file) and send as a string field through swagger to the Entities service, on the Entities service i do a JSON.parse on the parameter


4. if the file has 100mb the JSON.stringify crashes the server


5. there is also a considerate delay between Core and Entities until the file is passed completely

How can i pass the request received by Core, unaltered and unchanged through swagger to the Entities service? (Core should be just a pass-through service, i should not be doing JSON.stringify on file data, i just want to pass it along to the Entities service)

If i can't send the request unaltered i figured that i may send the file data buffer directly to the Entities service, but i did not get it to work, it shows as undefined.

Suggestions and samples are greatly appreciated!

Thanks!