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LINE Messaging API Blob API

The messaging-api-blob API from LINE — 4 operation(s) for messaging-api-blob.

LINE Messaging API Blob API is one of 12 APIs that LINE publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

Tagged areas include messaging-api-blob. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, a getting-started guide, an AsyncAPI specification, and authentication docs.

This API exposes 5 operations across 4 paths, and defines 1 schema. It is described by OpenAPI 3.2.0, at version 0.0.1.

Requests are made against a single base URL, https://api.line.me.

5 operations 4 paths 1 schemas 4 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
0.0.1
Base URL
https://api.line.me
Authentication
HTTP Bearer
Resource Areas
1

Authentication & Security 1

LINE Messaging API Blob API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (Bearer). By default, every request must be authenticated.

  • Bearer — Channel access token

Paths & Operations 5

Across 4 paths, the API surfaces 5 operations — 4 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

messaging-api-blob 5
GET
/v2/bot/message/{messageId}/content
Download image, video, and audio data sent from users.
getMessageContent 1 param → 200
GET
/v2/bot/message/{messageId}/content/preview
Get a preview image of the image or video
getMessageContentPreview 1 param → 200
GET
/v2/bot/message/{messageId}/content/transcoding
Verify the preparation status of a video or audio for getting
getMessageContentTranscodingByMessageId 1 param → 200
GET
/v2/bot/richmenu/{richMenuId}/content
Download rich menu image.
getRichMenuImage 1 param → 200
POST
/v2/bot/richmenu/{richMenuId}/content
Upload rich menu image
setRichMenuImage 1 param body → 200

Schemas 1

The contract defines 1 schema that model the data the API accepts and returns. The most detailed is GetMessageContentTranscodingResponse (1 property). Each schema is shown below with its type and property counts.

GetMessageContentTranscodingResponse
object
Transcoding response
1 property 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

line-messaging-api-blob-api-openapi.yml Raw ↑

Other APIs LINE publishes across the network.

LINE Login v2.1
LINE Channel Access Token API
LINE Dummy API
LINE Insight API
LINE Liff API
LINE Line Module API
LINE Line Module Attach API
LINE Manage Audience API
LINE Manage Audience Blob API
LINE Messaging API
LINE Shop API
Where this information came from

This is an independent, third-party profile of LINE Messaging API Blob API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

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