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SlackWebhookClient.ts
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SlackWebhookClient.ts
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import axios, { AxiosInstance } from 'axios';
import invariant from 'ts-invariant';
import warning from 'warning';
import {
OnRequestFunction,
createRequestInterceptor,
snakecaseKeysDeep,
} from 'messaging-api-common';
import * as SlackTypes from './SlackTypes';
interface ClientConfig {
url: string;
onRequest?: OnRequestFunction;
}
export default class SlackWebhookClient {
/**
* @deprecated Use `new SlackWebhookClient(...)` instead.
*/
static connect(config: ClientConfig): SlackWebhookClient {
warning(
false,
'`SlackWebhookClient.connect(...)` is deprecated. Use `new SlackWebhookClient(...)` instead.'
);
return new SlackWebhookClient(config);
}
/**
* The underlying axios instance.
*/
readonly axios: AxiosInstance;
/**
* The callback to be called when receiving requests.
*/
private onRequest?: OnRequestFunction;
constructor(config: ClientConfig) {
invariant(
typeof config !== 'string',
`SlackWebhookClient: do not allow constructing client with ${config} string. Use object instead.`
);
this.onRequest = config.onRequest;
// incoming webhooks
// https://api.slack.com/incoming-webhooks
this.axios = axios.create({
baseURL: config.url,
headers: { 'Content-Type': 'application/json' },
});
this.axios.interceptors.request.use(
createRequestInterceptor({ onRequest: this.onRequest })
);
}
/**
* Send message by using raw body.
*
* @param body - Raw data to be sent.
*
* @see https://api.slack.com/docs/messages
*
* @example
*
* ```js
* await client.sendRawBody({ text: 'Hello!' });
* ```
*/
sendRawBody(
body: Record<string, any>
): Promise<SlackTypes.SendMessageSuccessResponse> {
return this.axios.post('', snakecaseKeysDeep(body)).then((res) => res.data);
}
/**
* Send text message.
*
* @param text - Text of the message to be sent.
*
* @see https://api.slack.com/docs/messages
*
* @example
*
* ```js
* await client.sendText('Hello!');
* ```
*/
sendText(text: string): Promise<SlackTypes.SendMessageSuccessResponse> {
return this.sendRawBody({ text });
}
/**
* Send multiple attachments which let you add more context to a message.
*
* @param attachments - Messages are attachments, defined as an array. Each object contains the parameters to customize the appearance of a message attachment.
*
* @see https://api.slack.com/docs/message-attachments
*
* ```js
* await client.sendAttachments([
* {
* fallback: 'some text',
* pretext: 'some pretext',
* color: 'good',
* fields: [
* {
* title: 'aaa',
* value: 'bbb',
* short: false,
* },
* ],
* },
* {
* fallback: 'some other text',
* pretext: 'some pther pretext',
* color: '#FF0000',
* fields: [
* {
* title: 'ccc',
* value: 'ddd',
* short: false,
* },
* ],
* },
* ]);
* ```
*/
sendAttachments(
attachments: SlackTypes.Attachment[]
): Promise<SlackTypes.SendMessageSuccessResponse> {
return this.sendRawBody({ attachments });
}
/**
* Send only one attachment.
*
* @param attachment - Message is an attachment. The object contains the parameters to customize the appearance of a message attachment.
*
* @see https://api.slack.com/docs/message-attachments
*
* ```js
* await client.sendAttachment({
* fallback: 'some text',
* pretext: 'some pretext',
* color: 'good',
* fields: [
* {
* title: 'aaa',
* value: 'bbb',
* short: false,
* },
* ],
* });
* ```
*/
sendAttachment(
attachment: SlackTypes.Attachment
): Promise<SlackTypes.SendMessageSuccessResponse> {
return this.sendAttachments([attachment]);
}
}