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[Mia] How to use Google Calendar API with Go: From Refresh Token to Event Acquisition

The Google API does not allow direct use of refresh_token to access the API. Instead, you must use refresh_token to issue a temporary access_token and send a request to the API using this token.

Development/DesignServer (Go)

[Mia] Implementation of Google Calendar API access utilizing Auth Code and Refresh Token (Go and Flutter)

To manage access to the Google Calendar API more securely and efficiently, instead of using access tokens directly on the app side, we have changed the mechanism to send an authentication code (Auth Code) to the backend, generate and store a refresh token, and use that refresh token to access the Changed to a mechanism to access Google Calendar API.

application(Flutter)Development/DesignServer (Go)

[flutter_sound × Go] Upload audio files to AWS S3 via API

In this case, we want to implement the part where the app uploads the voice files recorded with the flutter_sound package from the app to the server (AWS S3) via API communication. We will associate the S3 path of the uploaded audio file with a phrase in the database and update the voice_path field.

application(Flutter)Development/DesignServer (Go)

[Flutter × Go × ESP32] How to add mute function to Mia.

After the release of the beta version of Mia, several users who actually used it asked for a 'no talking mode' for the frequency of talking, so the implementation of this feature is described in this report. For reference, we looked at Alexa and found that mute (in this case, goodnight mode) was indeed displayed on the home screen with a toggle icon.

2024.06.30 2024.07.14

application(Flutter)built-in(C++)Development/DesignServer (Go)

[Golang] Practice of Test-Driven Development: From Migration File Creation to SQL Injection Countermeasures

Describes test-driven development in Go language, including migration file creation, SQL injection countermeasures and actual testing methods using dockertest. testutils.RunMySQLContainer function is called to start the MySQL container and connect to the database. RunMySQLContainer function to start the MySQL container and connect to the database.

Development/DesignServer (Go)

[gRPC] Create a .proto file, compile it, and use it with the Go language.

Protocol Buffers (protobufs) are Interface Definition Languages (IDLs) used in gRPC to transmit data in smaller sizes and at a faster rate than traditional formats such as JSON and XML. Create a .proto file to define messages and gRPC methods

2024.04.06 2024.07.09

Development/DesignServer (Go)

[Go x FCM] Implemented a function to send push notifications to FCM on a regular basis: Server Edition

Implement a function to send Push notifications from the server to FCM at regular times in Go language.The following four arguments are required to implement Push notifications to FCM: OAuth 2.0 token (Authorisation in the HTTP request header), FCM token of the device, title and body.

2024.05.04 2024.06.13

Development/Design

[Flutter × Go] Withdrawal process: How to handle the “requires-recent-login” error when deleting Firebase Auth.

Describes how to deal with the 'requires-recent-login' error when processing user withdrawal using Firebase Auth.This error occurs when a user has not logged in recently for security reasons. The user needs to be re-authenticated (reauthentication) before they can be withdrawn.

2024.05.07 2024.06.11

Development/Design

[Flutter × Go × gRPC] Implementation of forced application update function (screen lock)

A search for "Flutter Firebase app update" yielded two main types of hits: using RemoteConfig and using FirebaseDetabase.This time, however, we will implement the forced update function on our own using Flutter x Go x gRPC.

2024.05.16 2024.06.11

Development/Design

[Mia] ESP32 OTA update function implementation: Firmware update app notification

A new Firmware binary is uploaded to the AWS s3 firmware directory with the version specified by the developer.The version of each user's firmware is compared to the latest version uploaded by the developer, and if they are different, the Flutter app is notified that the new firmware is available for installation.

2024.04.10 2024.05.11

Development/Design

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