[Rails + UT] How to use UploadThing outside of JS ecosystem, using Rest API?

{
  url: S.String,
  key: S.String,
  customId: S.NullOr(S.String),
  name: S.String,
}

{
  url: S.String,
  key: S.String,
  customId: S.NullOr(S.String),
  name: S.String,
}

class Uploadthing
  def fetch_presigned_urls(files)
    response = Uploadthing.faraday.post("/v6/prepareUpload") do |req|
      req.body = {
        files: files.map { |file| {name: file[:name], size: file[:size], type: file[:type], customId: file[:key]} },
        callbackUrl: Rails.application.routes.url_helpers.callback_api_uploadthing_index_url(host: Rails.configuration.x.api_origin),
        callbackSlug: "direct_upload",
        metadata: {},
        routeConfig: %w[image video audio pdf text blob]
      }
    end

    response.body
  end

  def self.faraday
    @faraday ||= Faraday.new(
      url: "https://api.uploadthing.com",
      headers: {
        "X-Uploadthing-Api-Key" => Rails.configuration.x.uploadthing_secret_key,
        "x-uploadthing-fe-package" => "@uploadthing/react",
        "x-uploadthing-version" => "6.10.0"
      }
    ) do |f|
      f.request :json
      f.response :json
    end
  end
end

class Uploadthing
  def fetch_presigned_urls(files)
    response = Uploadthing.faraday.post("/v6/prepareUpload") do |req|
      req.body = {
        files: files.map { |file| {name: file[:name], size: file[:size], type: file[:type], customId: file[:key]} },
        callbackUrl: Rails.application.routes.url_helpers.callback_api_uploadthing_index_url(host: Rails.configuration.x.api_origin),
        callbackSlug: "direct_upload",
        metadata: {},
        routeConfig: %w[image video audio pdf text blob]
      }
    end

    response.body
  end

  def self.faraday
    @faraday ||= Faraday.new(
      url: "https://api.uploadthing.com",
      headers: {
        "X-Uploadthing-Api-Key" => Rails.configuration.x.uploadthing_secret_key,
        "x-uploadthing-fe-package" => "@uploadthing/react",
        "x-uploadthing-version" => "6.10.0"
      }
    ) do |f|
      f.request :json
      f.response :json
    end
  end
end

const rnHelper = generateReactNativeHelpers<{
  direct_upload: Uploader<
    Omit<AnyParams, "_input"> & {
      _input: { checksums: string[] };
    }
  >;
}>({
  url: apiClient.baseUrl + "/api/uploadthing",
});

const resp = await rnHelper.createUpload("direct_upload", {
      files,
      input: {
        checksums: await Promise.all(
          expoFiles.map(async (f) => computeMD5Checksum(await readFileData(f))),
        ),
      },
      headers: {
        Authorization: `Bearer ${await getToken()}`,
      },
    });

const rnHelper = generateReactNativeHelpers<{
  direct_upload: Uploader<
    Omit<AnyParams, "_input"> & {
      _input: { checksums: string[] };
    }
  >;
}>({
  url: apiClient.baseUrl + "/api/uploadthing",
});

const resp = await rnHelper.createUpload("direct_upload", {
      files,
      input: {
        checksums: await Promise.all(
          expoFiles.map(async (f) => computeMD5Checksum(await readFileData(f))),
        ),
      },
      headers: {
        Authorization: `Bearer ${await getToken()}`,
      },
    });

{
  url: S.String,
  key: S.String,
  customId: S.NullOr(S.String),
  name: S.String,
}

{
  url: S.String,
  key: S.String,
  customId: S.NullOr(S.String),
  name: S.String,
}

curl -X POST https://{{ REGION_ALIAS }}.ingest.uploadthing.com/route-metadata \

curl -X POST https://{{ REGION_ALIAS }}.ingest.uploadthing.com/route-metadata \

https://sea1.ingest.uploadthing.com/UcOlsqhe264cZXlKZmNtRnBiSE1pT25zaVpHRjBZU0k2T1Rnc0luQjFjaUk2SW1Kc2IySmZhV1FpZlgwPS0tZGIwZGMyYjA1YTI3ZTA2YjdiNWNhZWE1Zjk5ZTgwMDAxY2Y0ZGUwMA==?expires=1730461375000&x-ut-acl=public-read&x-ut-content-disposition=inline&x-ut-file-name=Screenshot+2024-06-03+at+7.56.57%E2%80%AFPM.png&x-ut-file-size=19185&x-ut-file-type=image%2Fpng&x-ut-identifier=72uz6xz82c&signature=c1ef437afc02dbc63886a7c57e763321b079dcc93d9b326f02975842f19c1856

https://sea1.ingest.uploadthing.com/UcOlsqhe264cZXlKZmNtRnBiSE1pT25zaVpHRjBZU0k2T1Rnc0luQjFjaUk2SW1Kc2IySmZhV1FpZlgwPS0tZGIwZGMyYjA1YTI3ZTA2YjdiNWNhZWE1Zjk5ZTgwMDAxY2Y0ZGUwMA==?expires=1730461375000&x-ut-acl=public-read&x-ut-content-disposition=inline&x-ut-file-name=Screenshot+2024-06-03+at+7.56.57%E2%80%AFPM.png&x-ut-file-size=19185&x-ut-file-type=image%2Fpng&x-ut-identifier=72uz6xz82c&signature=c1ef437afc02dbc63886a7c57e763321b079dcc93d9b326f02975842f19c1856

response = Faraday.post("https://api.uploadthing.com/v6/uploadFiles") do |req|
        req.headers["Content-Type"] = "application/json"
        req.headers["X-Uploadthing-Api-Key"] = Rails.application.credentials.uploadthing.api_key
        req.headers["X-Uploadthing-Version"] = "7.0.0"
        req.body = {
          files: [{name: key, size: io.size, type: options[:content_type], customId: key}],
          acl: "public-read",
          contentDisposition: "inline"
        }.to_json
      end

      raise "Upload failed: #{response.status} #{response.body}" unless response.success?

      signed_data = JSON.parse(response.body)["data"].first

      url = signed_data["url"]
      fields = signed_data["fields"]
      file_name = signed_data["fileName"] || "file"
      content_type = signed_data["fileType"] || "application/octet-stream"

      # Ensure the IO object is at the beginning of the file
      io.rewind if io.respond_to?(:rewind)

      # Prepare the payload for the multipart form data
      payload = fields.merge(
        "file" => Faraday::UploadIO.new(io, content_type, file_name)
      )

      # Create a Faraday connection
      connection = Faraday.new(url: url) do |faraday|
        faraday.request :multipart
        faraday.request :url_encoded
        faraday.adapter Faraday.default_adapter
      end

      # Perform the POST request to upload the file
      response = connection.post do |req|
        req.body = payload
      end

response = Faraday.post("https://api.uploadthing.com/v6/uploadFiles") do |req|
        req.headers["Content-Type"] = "application/json"
        req.headers["X-Uploadthing-Api-Key"] = Rails.application.credentials.uploadthing.api_key
        req.headers["X-Uploadthing-Version"] = "7.0.0"
        req.body = {
          files: [{name: key, size: io.size, type: options[:content_type], customId: key}],
          acl: "public-read",
          contentDisposition: "inline"
        }.to_json
      end

      raise "Upload failed: #{response.status} #{response.body}" unless response.success?

      signed_data = JSON.parse(response.body)["data"].first

      url = signed_data["url"]
      fields = signed_data["fields"]
      file_name = signed_data["fileName"] || "file"
      content_type = signed_data["fileType"] || "application/octet-stream"

      # Ensure the IO object is at the beginning of the file
      io.rewind if io.respond_to?(:rewind)

      # Prepare the payload for the multipart form data
      payload = fields.merge(
        "file" => Faraday::UploadIO.new(io, content_type, file_name)
      )

      # Create a Faraday connection
      connection = Faraday.new(url: url) do |faraday|
        faraday.request :multipart
        faraday.request :url_encoded
        faraday.adapter Faraday.default_adapter
      end

      # Perform the POST request to upload the file
      response = connection.post do |req|
        req.body = payload
      end