Clone the gRPC repository and follow these instructions to install for C++ (build from source).
You'll want to make sure the provided C++ helloworld
runs to verify gRPC and protoc were installed correctly. Build it using these steps (starting at the Build the Example section). The program may compile then segfault when run. This means gRPC and/or Protocol Buffers were not installed properly.
You can follow these steps to try installing again.
Clone the repo.
As cloned, the repository contains Protocol Buffers that describe the API, but no C++ code to actually implement them. You can set the language to C++ via export LANGUAGE=cpp
then in the googleapis
directory run make all
. The C++ code will be placed googleapis/gens/google/
, which can be used in an ofxApp.
It's easiest to add the entire google/
directory from gens/
to your XCode project, as there are many inter-dependencies between the api modules. However, you only need some of the included .cc
files to be added to your target. In particular, no .cc
files in the gens/google/protobuf
should be added to the target.
Link the following libraries, which should be found in /usr/local/lib
:
libgrpc++.dylib
libprotobuf.dylib
Make sure /usr/local/lib
is in the project's Library Search Paths, as well as /usr/local/include
and $(PROJECT_DIR)/google
in your Header Search Paths. (These are in the Build Settings tab)
Using these steps from Google:
-
Create a project in the Google Cloud Platform Console. If you haven't already created a project, create one now. Projects enable you to manage all Google Cloud Platform resources for your app, including deployment, access control, billing, and services.
- Open the Cloud Platform Console.
- In the drop-down menu at the top, select Create a project.
- Click Show advanced options. Under App Engine location, select a United States location.
- Give your project a name.
- Make a note of the project ID, which might be different from the project name. The project ID is used in commands and in configurations.
-
Enable billing for your project. If you haven't already enabled billing for your project, enable billing now. Enabling billing allows the application to consume billable resources such as Speech API calls. See Cloud Platform Console Help for more information about billing settings.
-
Enable APIs for your project. Click here to visit Cloud Platform Console and enable the Speech API.
-
Download service account credentials. These samples use service accounts for authentication.
- Visit the Cloud Console, and navigate to:
API Manager > Credentials > Create credentials > Service account key
- Under Service account, select
New service account
. - Under Service account name, enter a service account name of your choosing. For example,
transcriber
. - Under Role, select
Project > Service Account Actor
. - Under Key type, leave
JSON
selected. - Click Create to create a new service account, and download the json credentials file.
- Set the
GOOGLE_APPLICATION_CREDENTIALS
environment variable to point to your downloaded service account credentials:export GOOGLE_APPLICATION_CREDENTIALS=/path/to/your/credentials-key.json
See the Cloud Platform Auth Guide for more information.
- Visit the Cloud Console, and navigate to:
You can set environment variables in Xcode by modifying your target scheme.