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feat: add jetstream push wrappers (#483)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| import { realizeChannelName, getMessageType, realizeParametersForChannelWrapper, messageHasNullPayload, renderJSDocParameters } from '../../utils/index'; | ||
| // eslint-disable-next-line no-unused-vars | ||
| import { Message, ChannelParameter } from '@asyncapi/parser'; | ||
|
|
||
| /** | ||
| * Component which returns a function which publishes to the given channel | ||
| * | ||
| * @param {string} channelName to publish to | ||
| * @param {Message} message which is being published | ||
| * @param {Object.<string, ChannelParameter>} channelParameters parameters to the channel | ||
| */ | ||
| export function JetstreamPublish(channelName, message, channelParameters) { | ||
| const messageType = getMessageType(message); | ||
| const hasNullPayload = messageHasNullPayload(message.payload()); | ||
| //Determine the publish operation based on whether the message type is null | ||
| let publishOperation = `await js.publish(${realizeChannelName(channelParameters, channelName)}, Nats.Empty);`; | ||
| if (!hasNullPayload) { | ||
| publishOperation = ` | ||
| let dataToSend : any = message.marshal(); | ||
| dataToSend = codec.encode(dataToSend); | ||
| js.publish(${realizeChannelName(channelParameters, channelName)}, dataToSend, options);`; | ||
| } | ||
| return ` | ||
| /** | ||
| * Internal functionality to publish message to jetstream channel | ||
| * ${channelName} | ||
| * | ||
| * @param message to publish | ||
| * @param js to publish with | ||
| * @param codec used to convert messages | ||
| ${renderJSDocParameters(channelParameters)} | ||
| * @param options to publish with | ||
| */ | ||
| export function jetStreamPublish( | ||
| message: ${messageType}, | ||
| js: Nats.JetStreamClient, | ||
| codec: Nats.Codec<any> | ||
| ${realizeParametersForChannelWrapper(channelParameters)}, | ||
| options?: Nats.PublishOptions | ||
| ): Promise<void> { | ||
| return new Promise<void>(async (resolve, reject) => { | ||
| try{ | ||
| ${publishOperation} | ||
| resolve(); | ||
| }catch(e: any){ | ||
| reject(NatsTypescriptTemplateError.errorForCode(ErrorCode.INTERNAL_NATS_TS_ERROR, e)); | ||
| } | ||
| }); | ||
| }; | ||
| `; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| import { pascalCase, camelCase, getMessageType, realizeParametersForChannelWrapper, realizeParametersForChannelWithoutType, renderJSDocParameters } from '../../utils/index'; | ||
| // eslint-disable-next-line no-unused-vars | ||
| import { Message, ChannelParameter } from '@asyncapi/parser'; | ||
|
|
||
| /** | ||
| * Component which returns a publish to function for the client | ||
| * | ||
| * @param {string} defaultContentType | ||
| * @param {string} channelName to publish to | ||
| * @param {Message} message which is being published | ||
| * @param {string} messageDescription | ||
| * @param {Object.<string, ChannelParameter>} channelParameters parameters to the channel | ||
| */ | ||
| export function JetstreamPublish(channelName, message, messageDescription, channelParameters) { | ||
| return ` | ||
| /** | ||
| * Publish to the \`${channelName}\` jetstream channel | ||
| * | ||
| * ${messageDescription} | ||
| * | ||
| * @param message to publish | ||
| ${renderJSDocParameters(channelParameters)} | ||
| */ | ||
| public jetStreamPublishTo${pascalCase(channelName)}( | ||
| message: ${getMessageType(message)} | ||
| ${realizeParametersForChannelWrapper(channelParameters)}, | ||
| options?: Nats.PublishOptions | ||
| ): Promise<void> { | ||
| if (!this.isClosed() && this.nc !== undefined && this.codec !== undefined && this.js !== undefined) { | ||
| return ${camelCase(channelName)}Channel.jetStreamPublish( | ||
| message, | ||
| this.js, | ||
| this.codec | ||
| ${Object.keys(channelParameters).length ? `,${realizeParametersForChannelWithoutType(channelParameters)}` : ''}, | ||
| options | ||
| ); | ||
| }else{ | ||
| return Promise.reject(NatsTypescriptTemplateError.errorForCode(ErrorCode.NOT_CONNECTED)); | ||
| } | ||
| } | ||
| `; | ||
| } |
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